[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167239#comment-16167239 ] SammiChen commented on HDFS-7859: - Sure. Release note is ready. Thanks [~drankye], [~eddyxu], [~andrew.wang], [~xinwei], [~szetszwo], [~zhz] and [~jingzhao] for all your contribution and effort! > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Fix For: 3.0.0-beta1 > > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167200#comment-16167200 ] Hudson commented on HDFS-7859: -- SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #12878 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/12878/]) HDFS-7859. Erasure Coding: Persist erasure coding policies in NameNode. (kai.zheng: rev ae8f55b93243560bd891962d6c64320ddc62a7d7) * (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatPBINode.java * (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ErasureCodingPolicyManager.java * (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestFSImage.java * (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/proto/fsimage.proto * (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestErasureCodingPolicies.java * (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/startupprogress/StepType.java * (edit) hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSImageFormatProtobuf.java > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Fix For: 3.0.0-beta1 > > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167195#comment-16167195 ] Kai Zheng commented on HDFS-7859: - [~Sammi], would you help with the release notes? Thanks again! > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Fix For: 3.0.0-beta1 > > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167182#comment-16167182 ] Kai Zheng commented on HDFS-7859: - The building looks good. Will commit it shortly. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167176#comment-16167176
]
Hadoop QA commented on HDFS-7859:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
47s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 2 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m
59s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
6s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
46s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
11s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
50s{color} | {color:green} trunk passed {color} |
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
1s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
47s{color} | {color:green} the patch passed {color} |
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| {color:red}-1{color} | {color:red} unit {color} | {color:red}107m 8s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
17s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black}139m 32s{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
| | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.TestFileChecksum |
| | hadoop.hdfs.TestFileAppendRestart |
| | hadoop.hdfs.TestEncryptedTransfer |
| | hadoop.hdfs.server.datanode.TestDataNodeHotSwapVolumes |
| | hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics |
| Timed out junit tests | org.apache.hadoop.hdfs.TestWriteReadStripedFile |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:71bbb86 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12887052/HDFS-7859.019.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle cc |
| uname | Linux 71aa94a63c5d 3.13.0-116-generic #163-Ubuntu SMP Fri Mar 31
14:13:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / 390c2b5 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC1 |
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/21147/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
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| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/21147/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/21147/console |
| Powered by | Apache Yetus 0.6.0-SNAPSHOT
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167073#comment-16167073 ] Kai Zheng commented on HDFS-7859: - Manually triggered, see if it works. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16167014#comment-16167014 ] Kai Zheng commented on HDFS-7859: - Some issues like this and HDFS-12395 don't build, not sure what's wrong. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16165930#comment-16165930 ] Kai Zheng commented on HDFS-7859: - Thanks Sammi for the update. The latest patch LGTM. +1 pending on the building. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859.018.patch, > HDFS-7859.019.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16165789#comment-16165789
]
Hadoop QA commented on HDFS-7859:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
15s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
1s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
42s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
5s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
4s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
47s{color} | {color:green} trunk passed {color} |
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
39s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
57s{color} | {color:green} the patch passed {color} |
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|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 87m 41s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
17s{color} | {color:green} The patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black}117m 49s{color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestErasureCodingPolicies |
| | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
| | hadoop.hdfs.server.namenode.TestReencryption |
| | hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics |
| | hadoop.hdfs.server.blockmanagement.TestReplicationPolicyWithNodeGroup |
| | hadoop.hdfs.server.namenode.TestReencryptionWithKMS |
| | hadoop.hdfs.server.blockmanagement.TestReplicationPolicy |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.TestErasureCodingPoliciesWithRandomECPolicy |
| Timed out junit tests | org.apache.hadoop.hdfs.TestWriteReadStripedFile |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:71bbb86 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12887024/HDFS-7859.018.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle cc |
| uname | Linux 3ee6bb90b993 3.13.0-123-generic #172-Ubuntu SMP Mon Jun 26
18:04:35 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / e0b3c64 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC1 |
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/21132/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/21132/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16165602#comment-16165602 ] Kai Zheng commented on HDFS-7859: - Sammi, please rebase this. Applying to the latest trunk failed. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859.017.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16164751#comment-16164751
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 15m
35s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
51s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
37s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
41s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
56s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
56s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
3s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
39s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}107m 58s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
19s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}152m 5s{color} |
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests |
hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks |
| | hadoop.hdfs.TestReadStripedFileWithMissingBlocks |
| | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
| | hadoop.hdfs.server.namenode.TestAuditLogs |
| | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| Timed out junit tests | org.apache.hadoop.hdfs.TestWriteReadStripedFile |
| | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockStatsMXBean |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:71bbb86 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12886857/HDFS-7859.017.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle cc |
| uname | Linux 33c219834ca8 3.13.0-129-generic #178-Ubuntu SMP Fri Aug 11
12:48:20 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
| git revision | trunk / fa6cc43 |
| Default Java | 1.8.0_144 |
| findbugs | v3.1.0-RC1 |
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/21117/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/21117/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16164534#comment-16164534 ] SammiChen commented on HDFS-7859: - Thanks [~eddyxu] for the comments! If a policy is disabled because of codec not supported or cell size not support, it will be checked again at the enable time to make sure every enabled policy really works. The check will be part of HDFS-12399 with dedicated unit test. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch, > HDFS-7859.016.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16163920#comment-16163920
]
Lei (Eddy) Xu commented on HDFS-7859:
-
Thanks for the updates, [~Sammi]. LGTM overall. +1 pending.
Some small issues:
{code}
// loadPolicy()
if (!CodecUtil.hasCodec(policy.getCodecName()) ||
policy.getCellSize() > maxCellSize) {
// If policy is not supported in current system, set the policy state to
// DISABLED;
policy.setState(ErasureCodingPolicyState.DISABLED);
}
{code}
Does it mean that user can still enable this policy later via
{{enablePolicy()}}? It is not necessary to be addressed in this patch, but do
we have a way to guard what policy can be enabled.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859.016.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16160631#comment-16160631
]
Kai Zheng commented on HDFS-7859:
-
Thanks Sammi for the update and great work. In addition to the off-line
discussion points regarding how to move on this:
bq. There are existing "CacheManagerSection" saves cache directives for
CacheManager, "SecretManagerSection" saves secrets for SecretManager. So its
better follow the style, use "ErasureCodingPolicyManagerSection" to save the EC
policies for ErasureCodingPolicyManager.
Good point. However, if you'd like to see all the existing sections, you can
see all are concise and not so verbose. For the fsimage definition, the brevity
should make sense unless it introduces ambiguity. I'd prefer to do the change
{{ErasureCodingPolicyManagerSection}} => {{ErasureCodingSection}} along with
related methods (even more lengthy).
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859.016.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16158615#comment-16158615
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
23s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m
50s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
14s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
47s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
16s{color} | {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m
10s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs in trunk has 1 extant
Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
52s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
8s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
7s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 41s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch
generated 2 new + 60 unchanged - 0 fixed = 62 total (was 60) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
3s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
39s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}108m 1s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
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{color} |
| {color:black}{color} | {color:black} {color} | {color:black}140m 6s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure150 |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.TestFileAppend4 |
| | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure050 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure130 |
| | hadoop.hdfs.server.blockmanagement.TestBlockStatsMXBean |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure030 |
| | hadoop.hdfs.TestDecommissionWithStriped |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure160 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure140 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure090 |
| | hadoop.hdfs.TestDatanodeLayoutUpgrade |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure010 |
| | hadoop.hdfs.server.blockmanagement.TestBlockManager |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure120 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure020 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailureWithRandomECPolicy |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure200 |
| | hadoop.hdfs.server.namenode.TestReencryptionWithKMS |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure110 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure070 |
| |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16158252#comment-16158252
]
SammiChen commented on HDFS-7859:
-
Thanks [~eddyxu] and [~drankye] for review the patch and provide very detail
suggestions!
{quote}
Could you consider to use:
message ErasureCodingPolicyManagerSection {
repeated ErasureCodingPolicyProto policies = 1;
}
{quote}
Sure.
{quote}
// dd new erasure coding policy
ECSchema newSchema = new ECSchema("rs", 5, 3);
{quote}
The comments actually is "add new erasure coding policy". It's a typo.
bq. Checking file / directory that is using this particular policy is a
potentially O(n) operation, where n = # of inodes. I feel that it is OK to
leave it in fsimage as garbage for now. In the future, we can let the fsimage
loading process to handling this garbage, as it is O(n).
HDFS-12405 is created to track the permanently delete the policy from system at
Namenode restart time. Will start to working on it after beta1.
{quote}
Regarding to the policy ID design, are there general rules for customize EC
policy design? My question is, what is the ID value range can be chosen for a
customized policy. Currently the system EC policies use values up to 5. If a
customer / vender provides a new EC policy with ID=6, when the next version of
Hadoop adding a new EC policy, how do we handle the conflicts (i.e, ID=6 has
been used), in fsimage and INode. Or a customer using policies from two
vendors, who accidentally use the same IDs. SammiChen could you add some test
cases like this as future work?
{quote}
Here are the general rules for customized EC policy,
1. when user add customized EC policy, user specify codec name, data units
number, parity units number, cell size. Policy ID and policy name are
automatically generated by system. customized EC policy ID starts from 64,
atomic incremented. So generally there will not have 2 policies in the same
system has the same policy ID.
2. system built-in policy ID starts from 1 to 63. system policy and customized
policy will have different ID range.
{quote}
Question to Kai Zheng:
I thought "dfs.namenode.ec.policies.enabled" should have been removed when
adding the API to enable/disable policy.
Could this happen before BETA 1? it seems to be a breaking change. If not , do
we have a plan to preserve both this key and the capability of adding/removing
policies?
{quote}
like to have inputs from [~andrew.wang]. I'm fine with the thought.
bq. Again, could we make the change: ErasureCodingPolicyManagerSection =>
ErasureCodingSection. Also check related names like
loadErasureCodingPolicyManagerSection, saveErasureCodingPolicyManagerSection.
There are existing "CacheManagerSection" saves cache directives for
CacheManager, "SecretManagerSection" saves secrets for SecretManager. So its
better follow the style, use "ErasureCodingPolicyManagerSection" to save the EC
policies for ErasureCodingPolicyManager.
All other comments will be taken care in next patch.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16157633#comment-16157633
]
Kai Zheng commented on HDFS-7859:
-
bq. Checking file / directory that is using this particular policy is a
potentially O(n) operation, where n = # of inodes. I feel that it is OK to
leave it in fsimage as garbage for now. In the future, we can let the fsimage
loading process to handling this garbage, as it is O(n).
Discussed with Sammi offline before, we can do this very lightly like below:
{code}
# all used polices by files/directories
usedPoliciesSet = ();
# while loading inodes from fsimage, add the following two lines
foreach (in: inodes) {
policyId = getPolicyIdFromInode(in) # a bitwise op, very minor
usedPoliciesSet.add(policyId)
}
# when inodes all loaded, add the following post step
ErasureCodingPolicyManager.getInstance().updateWithUsedPolices(usedPoliciesSet)
# in ErasureCodingPolicyManager.updateWithUsedPolices, it's a simple step to
clean up removed policies with the used polices set.
{code}
bq. Here or elsewhere, please ensure no policy can be DISABLED/REMOVED if it's
used by files, with necessary tests.
Let me correct myself. We should allow to disable/remove polices regardless
they're used or not. It would be too much overhead to track policy usages while
NN is running along with lots of files being operated. We can just do a post
clean up as above illustrated.
I'm fine to leave the policies clean up work as a future work to do, but if
sounds good maybe we can get it done before 3.0 GA. It should be OK since it
doesn't involve API change.
bq. Could this happen before BETA 1? it seems to be a breaking change. If not ,
do we have a plan to preserve both this key and the capability of
adding/removing policies?
I agree, we should get it done this time. Actually, IIRC, this was already done
but Sammi may need some double check and clean up if any.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16157346#comment-16157346
]
Lei (Eddy) Xu commented on HDFS-7859:
-
Hi, [~Sammi]
Thanks for the newly updated patch. It is much more concise.
Some comments:
{code}
message ErasureCodingPolicyManagerSection {
// number of erasure coding policies, include built-in and user defined
required uint32 numPolicies = 1;
// repeated ErasureCodingPolicyProto policies;
}
{code}
Why dont we just use:
{code}
message ErasureCodingPolicyManagerSection {
repeated ErasureCodingPolicyProto policies = 1;
}
{code}
The total number of policies should be a very limited number (i.e., 64?).
Putting them into one single protobuf message should be sufficient.
{code}
// dd new erasure coding policy
ECSchema newSchema = new ECSchema("rs", 5, 3);
{code}
The comment above is not clear to me. Could you clarify a little bit?
{code}
MiniDFSCluster cluster = null;
try {
...
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
{code}
{{MiniDFSCluster}} can be used in {{try-resource}} now.
In test {{testChangeErasureCodingPolicyState()}}
{code}
// 3. remove an erasure coding policy
+try {
+ fs.removeErasureCodingPolicy(ecPolicy.getName());
+ targetPolicy.setState(ErasureCodingPolicyState.REMOVED);
+ // Save namespace and restart NameNode
+ fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
+ fs.saveNamespace();
+ fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
+
+ cluster.restartNameNodes();
+ cluster.waitActive();
+ ecPolicy = ErasureCodingPolicyManager.getInstance().getByID(
+ targetPolicy.getId());
+ assertEquals("The erasure coding policy is not found",
+ targetPolicy, ecPolicy);
+ assertEquals("The erasure coding policy should be of removed state",
+ ErasureCodingPolicyState.REMOVED, ecPolicy.getState());
+} catch (RemoteException e) {
+ assertTrue("Built-in policy cannot be removed",
+ ecPolicy.isSystemPolicy());
+ assertExceptionContains("System erasure coding policy", e);
+}
{code}
The {{assertEquals()}} at the end of this section are not happening if the
{{RemoteException}} is thrown? or vise versa. Do these tests work as expected?
{code}
+/*
+ * TODO check if there is any file or directory using this policy.
+ * If no, remove this erasure coding policy from system permanently.
+ */
{code}
Checking file / directory that is using this particular policy is a potentially
{{O\(n\)}} operation, where {{n = # of inodes}}. I feel that it is OK to leave
it in fsimage as garbage for now. In the future, we can let the fsimage loading
process to handling this garbage, as it is {{O\(n\)}} anyway.
Regarding to the policy ID design, are there general rules for customize EC
policy design? My question is, what is the ID value range can be chosen for a
customized policy. Currently the system EC policies use values up to 5. If a
customer / vender provides a new EC policy with ID=6, when the next version of
Hadoop adding a new EC policy, how do we handle the conflicts (i.e, ID=6 has
been used), in fsimage and INode.
Question to [~drankye]:
bq. I thought "dfs.namenode.ec.policies.enabled" should have been removed when
adding the API to enable/disable policy.
Could this happen before BETA 1? it seems to be a breaking change. If not , do
we have a plan to preserve both this key and the capability of adding/removing
policies?
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16156877#comment-16156877
]
Kai Zheng commented on HDFS-7859:
-
Thanks Sammi for the update. The patch seems in much better form.
1. Do you have any issue to track the TODO work? Will you plan to do it shortly
for BETA1?
{code}
+/*
+ * TODO check if there is any file or directory using this policy.
+ * If no, remove this erasure coding policy from system permanently.
+ * */
{code}
2. Hmm, I thought "dfs.namenode.ec.policies.enabled" should have been removed
when adding the API to enable/disable policy. Please checkout the relevant
discussions and issues to ensure this if it hasn't happened already.
bq. HDFS configuration file means "hdfs-site.xml". For example, user can define
enabled policies through property "dfs.namenode.ec.policies.enabled"
Copy the relevant codes again:
{code}
+for (ErasureCodingPolicy p : getPolicies()) {
+ if (p.getName().equals(policyName) ||
+ (p.getSchema().equals(policy.getSchema()) &&
+ p.getCellSize() == policy.getCellSize())) {
+// If the same policy loaded from fsImage override policy loaded based
+// on HDFS configuration file
+LOG.info("The erasure coding policy name " + policy + " loaded from " +
+"fsImage overrides the one loaded according to HDFS
hdfs-site.xml");
+ }
+}
{code}
3. Again, could we make the change: ErasureCodingPolicyManagerSection =>
ErasureCodingSection. Also check related names like
loadErasureCodingPolicyManagerSection, saveErasureCodingPolicyManagerSection.
4. The assert message would be "The erasure coding policy saved into and loaded
from fsimage was bad" to make more sense.
{code}
+ assertEquals("The erasure coding policy is not found",
+ targetPolicy, ecPolicy);
{code}
5. Here or elsewhere, please ensure no policy can be DISABLED/REMOVED if it's
used by files, with necessary tests.
Thanks!
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859.015.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16156616#comment-16156616
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
16s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 1 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
49s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
36s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
54s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
48s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
43s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
58s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
7s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
5s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
43s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}111m 53s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
23s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}139m 21s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests |
hadoop.hdfs.server.blockmanagement.TestPendingReconstruction |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailureWithRandomECPolicy |
| | hadoop.hdfs.TestClientProtocolForPipelineRecovery |
| | hadoop.hdfs.server.namenode.TestReencryption |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure180 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure110 |
| | hadoop.hdfs.TestSafeMode |
| | hadoop.hdfs.server.namenode.TestReencryptionWithKMS |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure190 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure210 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure070 |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure090 |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.server.blockmanagement.TestUnderReplicatedBlocks |
| | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
| | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure030 |
| Timed out junit tests | org.apache.hadoop.hdfs.TestWriteReadStripedFile |
| | org.apache.hadoop.hdfs.server.blockmanagement.TestBlockStatsMXBean |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:71bbb86 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12885744/HDFS-7859.015.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16156269#comment-16156269 ] Kai Zheng commented on HDFS-7859: - HDFS-12395 handles edit log related changes as part of this work. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16156260#comment-16156260 ] Kai Zheng commented on HDFS-7859: - Unfortunately I still found lots of not-so-relevant changes here. The changes looks good to have but should be in separate task(s) under HDFS-7337, instead of being mixed here, this jira should focus on persisting EC policies in NN and nothing more, so that some folks would be easier to have a quick glance at what changes we introduced to NN/fsimage. Please proceed one more time, thanks. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16155100#comment-16155100 ] Kai Zheng commented on HDFS-7859: - Thanks [~Sammi] for the update! I'm happy to see the patch is very concise (24k) now and will give it another round of review later, today. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859.013.patch, HDFS-7859.014.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153756#comment-16153756
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
24s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 2 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m
3s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 15m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
36s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
29s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 11m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 11m
59s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 11m
59s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 2s{color} | {color:orange} root: The patch generated 2 new + 68 unchanged -
0 fixed = 70 total (was 68) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
0s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
37s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
40s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
55s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}117m 18s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
32s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}190m 25s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure130 |
| | hadoop.hdfs.server.namenode.TestFSImage |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
| | hadoop.hdfs.TestDistributedFileSystem |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure100 |
| | hadoop.hdfs.server.namenode.ha.TestPipelinesFailover |
| | hadoop.hdfs.TestFileAppendRestart |
| | hadoop.hdfs.TestReadStripedFileWithMissingBlocks |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure160 |
| | hadoop.hdfs.TestEncryptedTransfer |
| | hadoop.hdfs.server.namenode.metrics.TestNameNodeMetrics |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure070 |
| | hadoop.hdfs.TestFileCreationDelete |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailureWithRandomECPolicy |
| Timed out junit tests | org.apache.hadoop.hdfs.TestWriteReadStripedFile |
| | org.apache.hadoop.hdfs.TestReadStripedFileWithDecoding |
\\
\\
|| Subsystem || Report/Notes ||
|
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153497#comment-16153497 ] Kai Zheng commented on HDFS-7859: - bq. I would prefer to keep the unit test. More test, better quality. I want most of the changes attached here are relevant to this, if you feel strong to have the changes, please do it separately. Thanks. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Labels: hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153453#comment-16153453
]
SammiChen commented on HDFS-7859:
-
Thanks [~drankye] for quick review!
bq. 1. Did you notice some failure or error for the current behavior of
ElasticByteBufferPool->getBuffer(boolean direct, int length)? It looks
reasonable to me that it can return a ByteBuffer of larger capacity than
required; it can the caller's responsibility to use it well. Anyway, it's not
relevant to this issue, so would you please handle it separately? Thanks.
HDFS-12392 is opened for this. Double checked all failed unit tests, they are
not relative to this code change.
bq. 3. What did you mean by policies loaded HDFS configuration file? There
isn't any such file to configure and load EC policies. User may provide one in
client, but it's forgotten after used.
HDFS configuration file means "hdfs-site.xml". For example, user can define
enabled policies through property "dfs.namenode.ec.policies.enabled", later
user may disable the policy dynamically through API, then save the namespace to
fsimage. Next time, when Namenode starts, it will get a "enable" state policy
from "dfs.namenode.ec.policies.enabled" and a "disable" state policy from
fsImage for the same policy. In this case, the policy state from fsImage will
override the policy state from "dfs.namenode.ec.policies.enabled".
bq. 6. Could we have a separate issue to refactor the existing codes, renaming
addErasureCodePolicy to addErasureCodingPolicy and so on ...
HDFS-12395 is opened to address the refactor and add edit log for all erasure
coding policy operations.
bq. 2. Similarly, please also do the large portion of changes in
CodecRegistry/CodecUtil separately. It's really not very relevant to this.
bq. 8. You have tests like testChangeErasureCodingCodec,
AddNewErasureCodingCodec and etc., but I don't think we need such as
codec/coder/algorithms are part of the runtime binary packages and are meant to
be loaded during startup. Let's avoid the complexity here and focus on the EC
policy persisting stuff.
The change in CodecRegistry/CodecUtil are for unit test
{{testChangeErasureCodingCodec}}. The unit test
{{testChangeErasureCodingCodec}} demonstrate the robustness of HDFS in handling
HDFS-7337 "Configurable and pluggable Erasure Codec and schema". I would prefer
to keep the unit test. More test, better quality.
Other suggestions will be well addressed in next patch.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153051#comment-16153051
]
Kai Zheng commented on HDFS-7859:
-
7. "HDFS-8140" should be HDFS-11467 instead, please update the comments.
{code}
+@Override
+protected void toXml(ContentHandler contentHandler) throws SAXException {
+ // TODO: HDFS-8140 Support for offline EditsVistor over an OEV XML file
+}
+
+@Override
+void fromXml(Stanza st) throws InvalidXmlException {
+ // TODO: HDFS-8140 Support for offline EditsVistor over an OEV XML file
+}
{code}
8. You have tests like {{testChangeErasureCodingCodec}},
{{AddNewErasureCodingCodec}} and etc., but I don't think we need such as
codec/coder/algorithms are part of the runtime binary packages and are meant to
be loaded during startup. Let's avoid the complexity here and focus on the EC
policy persisting stuff.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153041#comment-16153041
]
Kai Zheng commented on HDFS-7859:
-
6. Could we have a separate issue to refactor the existing codes, renaming
addErasureCodePolicy to addErasureCodingPolicy and so on ...
{code}
---
a/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirErasureCodingOp.java
+++
b/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirErasureCodingOp.java
@@ -214,7 +214,10 @@ static FileStatus unsetErasureCodingPolicy(final
FSNamesystem fsn,
static ErasureCodingPolicy addErasureCodePolicy(final FSNamesystem fsn,
ErasureCodingPolicy policy) throws IllegalECPolicyException {
...
...
{code}
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16153001#comment-16153001
]
Kai Zheng commented on HDFS-7859:
-
Continued.
1. Better to fix the existing text by the way. "does not exists" => "doesn't
exist"
{code}
- throw new IllegalArgumentException("The policy name " +
+ throw new HadoopIllegalArgumentException("The policy name " +
name + " does not exists");
{code}
2. PROHIBITED => DISABLED
{code}
+if (!CodecUtil.hasCodec(policy.getCodecName()) ||
+policy.getCellSize() > maxCellSize) {
+ // If policy is not supported in current system, set the policy state to
+ // PROHIBITED;
+ policy.setState(ErasureCodingPolicyState.DISABLED);
+}
{code}
3. What did you mean by policies loaded HDFS configuration file? There isn't
any such file to configure and load EC policies. User may provide one in
client, but it's forgotten after used.
{code}
+String policyName = policy.getName();
+for (ErasureCodingPolicy p : getPolicies()) {
+ if (p.getName().equals(policyName) ||
+ (p.getSchema().equals(policy.getSchema()) &&
+ p.getCellSize() == policy.getCellSize())) {
+// If the same policy loaded from fsImage override policy loaded based
+// on HDFS configuration file
+LOG.info("The erasure coding policy name " + policy + " loaded from " +
+"fsImage override the one loaded according to HDFS " +
+"configuration file");
+ }
{code}
4. How about ErasureCodingPolicyManagerSection => ErasureCodingSection?
5. Could we get rid of {{allPolicies}} or avoid repeatedly creating the array
in the for loop from the map?
{code}
+ public synchronized void reloadPolicy(ErasureCodingPolicy policy) {
...
+allPolicies = policiesByName.values().toArray(new ErasureCodingPolicy[0]);
...
+ }
+ public synchronized void loadState(PersistState state) {
...
+for (ErasureCodingPolicy p : state.getPolicies()) {
+ reloadPolicy(p);
+}
+ }
{code}
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16152682#comment-16152682
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
17s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 3 new or modified test
files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
0s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 16m
4s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 17m
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
27s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
42s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
4s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
15s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 11m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 11m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 11m
2s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 11s{color} | {color:orange} root: The patch generated 30 new + 766 unchanged
- 1 fixed = 796 total (was 767) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 3m
2s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 5m
54s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
13s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 8m
39s{color} | {color:green} hadoop-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
26s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 99m 6s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
47s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}184m 42s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure100 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure160 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure130 |
| | hadoop.hdfs.server.namenode.TestReencryption |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure000 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure050 |
| | hadoop.hdfs.tools.TestDebugAdmin |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure140 |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure170 |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure090 |
| | hadoop.hdfs.TestLeaseRecoveryStriped |
| | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureReporting |
| | hadoop.hdfs.TestReadStripedFileWithDecoding |
| |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16152584#comment-16152584
]
Kai Zheng commented on HDFS-7859:
-
Thanks [~Sammi] for the update!
Some comments so far:
1. Did you notice some failure or error for the current behavior of
{{ElasticByteBufferPool->getBuffer(boolean direct, int length)}}? It looks
reasonable to me that it can return a ByteBuffer of larger capacity than
required; it can the caller's responsibility to use it well. Anyway, it's not
relevant to this issue, so would you please handle it separately? Thanks.
{code}
---
a/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/ElasticByteBufferPool.java
+++
b/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/ElasticByteBufferPool.java
@@ -96,7 +96,8 @@ public synchronized ByteBuffer getBuffer(boolean direct, int
length) {
ByteBuffer.allocate(length);
}
tree.remove(entry.getKey());
-return entry.getValue();
+// The reused ByteBuffer may have more capacity than required(length)
+return (ByteBuffer) entry.getValue().limit(length);
}
{code}
2. Similarly, please also do the large portion of changes in
{{CodecRegistry/CodecUtil}} separately. It's really not very relevant to this.
3. Again, in {{DFSStripedOutputStream}} please do it elsewhere (better with
some test), I wish this could focus on the NN side changes when possible.
{code}
private void clear() {
for (int i = 0; i< numAllBlocks; i++) {
buffers[i].clear();
+buffers[i] = (ByteBuffer) buffers[i].limit(cellSize);
}
}
{code}
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Labels: hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859.012.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16148249#comment-16148249
]
Kai Zheng commented on HDFS-7859:
-
We want to stabilize the API before BETA 1, that includes API names. I'm not so
comfortable in methods like {{getEcPoliciesOnDir}}, because in most cases in
existing codes we preferred to use {{EC}} or {{ErasureCoding}} over {{Ec}}.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16148241#comment-16148241 ] Kai Zheng commented on HDFS-7859: - bq. Are only the number of policies persisted? It looks off to me. It will depends on the order of system pre-defined policies. So when the pluggable EC policy being merged, would that impact the correctness of loading / saving fsimage? It might also make upgrade / downgrade difficult. I agree with Eddy on this and have the same concern. We need to persist all the system policies and user defined policies including their info (name, id, cell size and EC schema) along with their status (lenabled/disabled, removed). We need to ensure all the persisted info can be used to recover/export/import/convert data and do the upgrading/downgrading stuffs. bq. Lei (Eddy) Xu mentioned upgrade and downgrade, it's a good question. Not only user defined ec policy, but also built-in ec policy will face this issue. The major problem is if a codec is no longer supported after upgrade or downgrade, how to handle these type of ec policies in the new cluster, also how to handle the files/directories which used these no long supported files? It should be a rare case we need to consider that an EC codec/coder/algorithm will not be supported and removed from the code base. If user adds some pluggable codec but then remove it from binary, it's their call. So let's not worry about this at this time. Let's focus on the basic use cases and requirements, and move on not being too overloaded. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16146892#comment-16146892
]
SammiChen commented on HDFS-7859:
-
[~eddyxu] mentioned upgrade and downgrade, it's a good question. Not only user
defined ec policy, but also built-in ec policy will face this issue. The major
problem is if a codec is no longer supported after upgrade or downgrade, how
to handle these type of ec policies in the new cluster, also how to handle the
files/directories which used these no long supported files? I tend to keep
these ec policies in {{ErasureCodingPolicyManager}}, while mark it as obsolete,
and also load these files/directories into the namespace so that user can go
through the tree structures(read file cannot be supported). I will do some
experiment to see if it works.
Any other suggestions are welcome. [~andrew.wang], [~drankye], [~eddyxu]
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16146700#comment-16146700 ] SammiChen commented on HDFS-7859: - Hi [~eddyxu], thanks for reviewing the patch! Persist erasure coding policies in NameNode is a critical part of the "provide support for user to customize EC policy" feature. Without this JIRA, it cannot say that customized EC policy feature is completed. So it's better to get this in beta1. For detail comments part, add state to EC policy is covered by HDFS-12258. I will upload a new patch shortly after HDFS-12258 commitment. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.4.14#64029) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16146402#comment-16146402
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
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0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 8s{color}
| {color:red} HDFS-7859 does not apply to trunk. Rebase required? Wrong Branch?
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
\\
\\
|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12868929/HDFS-7859.011.patch |
| Console output |
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> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16146400#comment-16146400
]
Lei (Eddy) Xu commented on HDFS-7859:
-
Hi, [~Sammi]
Thanks for the latest patch. I have some questions regarding the latest patch.
{code}
private byte state; // 0x01 - enabled, 0x02 - deleted
{code}
Can we use enum here to be more explicitly?
{code}
message ErasureCodingPolicyManagerSection {
351 // number of enabled EC policies
352 required uint32 numEnabledPolicies = 1;
353 // number of not enabled policies, including system and user
defined policy
354 required uint32 numOtherPolicies = 2;
355 // repeated ErasureCodingPolicyProto enabledPolicies;
356 // repeated ErasureCodingPolicyProto otherPolicies;
357 }
{code}
Are only the number of policies persisted? It looks off to me. It will depends
on the order of system pre-defined policies. So when the pluggable EC policy
being merged, would that impact the correctness of loading / saving fsimage? It
_might_ also make upgrade / downgrade difficult.
{code}
public HashSet getEcPoliciesOnDir() {
239 return ecPoliciesOnDir;
240 }
241
242 public HashSet getEcPoliciesOnFile() {
243 return ecPoliciesOnFile;
244 }
245
246 public void setCountEcPolicies(Boolean enabled) {
247 countEcPolicies = enabled;
248 }
249
{code}
What are the consumers of these functions? lso
{code}
public static final class PersistState {
246 public final ErasureCodingPolicyManagerSection section;
247 public final List enabledPolicies;
248 public final List otherPolicies;
{code}
Can these fields be {{private final}}?
{code}
// FSImage.java
import org.apache.hadoop.hdfs.protocol.IllegalECPolicyException;
{code}
Seems not necessary? also in {{FSImageFormat.java}}
{code}
private INode loadINode(INodeSection.INode n) throws IOException
{code}
Is this {{IOE}} necessary?
{code}
// TestFSEditLogLoader.java
cluster.shutdown();
754 cluster = null;
755 } finally {
756 if (cluster != null) {
757 cluster.shutdown();
758 }
759 }
{code}
In general, you can use {{try...resource}} for {{MiniDFSCluster}} .
A more general question to [~Sammi], do you think whether it is possible to get
this in beta1?
Thanks!
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859.010.patch, HDFS-7859.011.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16017450#comment-16017450
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
15s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
1s{color} | {color:green} The patch does not contain any @author tags. {color} |
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0s{color} | {color:green} The patch appears to include 2 new or modified test
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29s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m
7s{color} | {color:green} trunk passed {color} |
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29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
16s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
8s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
43s{color} | {color:green} the patch passed {color} |
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| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
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| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 58s{color} | {color:orange} hadoop-hdfs-project: The patch generated 28 new
+ 1030 unchanged - 3 fixed = 1058 total (was 1033) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
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26s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
20s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 75m 34s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
21s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}115m 33s{color} |
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestErasureCodingPolicies |
| | hadoop.hdfs.server.blockmanagement.TestRBWBlockInvalidation |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure080 |
| | hadoop.hdfs.TestBlockStoragePolicy |
| | hadoop.hdfs.TestDFSInotifyEventInputStream |
| | hadoop.hdfs.server.datanode.fsdataset.impl.TestLazyPersistReplicaRecovery
|
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12868929/HDFS-7859.011.patch |
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle cc |
| uname | Linux 38c941908285 3.13.0-107-generic #154-Ubuntu SMP Tue Dec 20
09:57:27 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh
|
|
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16005479#comment-16005479 ] Kai Zheng commented on HDFS-7859: - As there are particular interests and requirements to support more codecs and coders, like in HDFS-11503; and we received user queries regarding how to try their own EC policies like using different cell size. So accordingly we want to solve this and make a further step in HDFS-7337 to support pluggable and configurable codecs. The design doc was updated with latest discussions and related work, which I hope can address the design level questions that's already raised or will be raised here. [~szetszwo], per your request this should be proceeded with design since it's to change the fsimage, which is why I want to ping you. Would you let me know if you have any concerns or would confirm. I know you're very busy with Ozone, so thanks for your time :)! > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859.010.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16002837#comment-16002837
]
Hadoop QA commented on HDFS-7859:
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| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
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13s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m
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| {color:green}+1{color} | {color:green} cc {color} | {color:green} 14m
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| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
2m 12s{color} | {color:orange} root: The patch generated 26 new + 1534
unchanged - 4 fixed = 1560 total (was 1538) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 2m
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| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 5m
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
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| {color:red}-1{color} | {color:red} unit {color} | {color:red} 6m 59s{color}
| {color:red} hadoop-common in the patch failed. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
18s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 99m 43s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
42s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}185m 55s{color} |
{color:black} {color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.io.erasurecode.TestCodecRegistry |
| | hadoop.hdfs.TestErasureCodingPolicies |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithFailure140 |
| | hadoop.hdfs.server.blockmanagement.TestReplicationPolicy |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.server.namenode.ha.TestDFSUpgradeWithHA |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15999047#comment-15999047 ] Kai Zheng commented on HDFS-7859: - Thanks [~Sammi] for taking this and updating the patch. I submitted it and let's see something. This should be a major one for the alpha3 release related to EC. Will review and try to help with it in the following days. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15963957#comment-15963957 ] SammiChen commented on HDFS-7859: - This JIRA will focus on persist erasure coding policies into fsImage, load erasure coding polices from fsImage and editLog when NameNode startup. Add and remove erasure coding policy will be covered in HDFS-11605 and HDFS-11606. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: SammiChen > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15963952#comment-15963952
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 9s{color}
| {color:red} HDFS-7859 does not apply to trunk. Rebase required? Wrong Branch?
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12843464/HDFS-7859.009.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/19039/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: SammiChen
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15887096#comment-15887096 ] Wei-Chiu Chuang commented on HDFS-7859: --- Filed HDFS-11467 for OIV/OEV improvement. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15887076#comment-15887076 ] Wei-Chiu Chuang commented on HDFS-7859: --- Sure. I'll file OIV/OEV improvement jiras. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15886784#comment-15886784 ] Andrew Wang commented on HDFS-7859: --- I think we've tabled this JIRA for now, so not very high urgency. We can file an OIV follow-on though for completeness. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15884596#comment-15884596 ] Wei-Chiu Chuang commented on HDFS-7859: --- Hello [~andrew.wang] [~drankye] [~xinwei] [~zhz] Appreciate your work in this big patch which I quickly skimmed through it. Now that new fsimage entry is added, we should also add support for OIV XML/ReverseXML. And add OEV XML output for edits. How about we file follow-up jiras for them? They are not as high priority as this patch itself. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15866857#comment-15866857 ] Andrew Wang commented on HDFS-7859: --- Appreciate the comments Kai, inline: bq. Making the policy parameter optional could be friendly considering they may have no idea before the list of available policies promoted to them. Agree, though I think most of the time these policies are going to be set up once by the admin. To support friendly usage, we could have a client-side configuration similar to "dfs.replication" that specifies the default EC policy. Or we could have a NN default when no EC policy is specified. I think this can be added compatibly later though. bq. If EC policy info get persisted and stay along with data, users might feel more confident and comfortable to do data validation and transformation in system upgrading. Right, that's essentially how it works now with the hardcoded policies. I think if/when we introduce pluggable policies, we should revive this JIRA so we aren't attaching an entire EC policy to every EC file that uses a pluggable policy, but until then it's not needed. I went ahead and filed HDFS-11416 for refactoring out the system default policy, thanks again for the discussion! > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Andrew Wang >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15864944#comment-15864944 ] Kai Zheng commented on HDFS-7859: - Thanks Andrew for working on this and bringing up the discussion. 1. For the system default EC policy, I agree its importance becomes weak now. A question is, when users set a EC policy to a folder, do they want to or have to specify a policy in most time? Making the policy parameter optional could be friendly considering they may have no idea before the list of available policies promoted to them. 2. EC policy and schema could be a nice fit and thought of file meta data. EC is another form of replica, I guess replica factor is recorded per file. If EC policy info get persisted and stay along with data, users might feel more confident and comfortable to do data validation and transformation in system upgrading. I may echo what's said in previous comments by others, configuration and codes may change and evolve. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Andrew Wang >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15864318#comment-15864318
]
Andrew Wang commented on HDFS-7859:
---
I thought about this JIRA some more, and had two questions I wanted to bring up
for discussion:
h3. Do we need a system default EC policy?
AFAICT, the system default policy dates from when we only supported a single
policy for HDFS. Now, we've pretty clearly defined the API for EC policies, and
for most uses, the EC policy is automatically inherited from a dir-level
policy. The {{setErasureCodingPolicy}} API already requires an EC policy to be
specified, so I think the default EC policy is basically vestigal and can be
removed.
# Can we use configuration instead of persistence for the set of enabled
policies?
I'm wondering if there is actually any benefit to persisting the set of allowed
policies. In the past, we've enabled and disabled features via configuration
keys, and this is basically the same idea. There's no danger of data corruption
from two NNs having different sets of enabled policies, so it's safe in that
sense. IMO we have a key like {{dfs.namenode.erasure.coding.policies.enabled}}
and specify from the list of hardcoded policies there.
If the above sounds good, I can file a new JIRA for refactoring out the system
default policies, and do the configuration key over on HDFS-11314.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Andrew Wang
>Priority: Blocker
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch,
> HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch,
> HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.003.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15858304#comment-15858304 ] Surendra Singh Lilhore commented on HDFS-7859: -- Thanks [~andrew.wang]. bq. are you interested in working on this? If not, I can pick it up. Sure, you can assign to youself > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15857239#comment-15857239 ] Andrew Wang commented on HDFS-7859: --- Thanks for the comments Zhe, inline, bq. Other than "ID/name that we already use, or an ID/name we might want to hardcode later", what other validations do you have in mind? I think it's problematic if user-defined policies are in the same id-space/namespace as system-defined policies. Separating these spaces would eliminate the possibility of overlap and the need for validation. bq. If we do decide to add pluggable EC policies in 3.0 GA, can we add an on-off config option for the entire pluggable logic and default to off? Yea, I think that works. IMO it's unlikely we get to pluggable policies at all in 3.0. The goal as I understand it was to support something like LRC as a pluggable policy, but that requires hooking into blockplacement and recovery. We haven't 100% finished those yet even for our built-in policies, and making these interfaces pluggable will be tough. So, I'd like to co-opt this JIRA to add APIs for defining allowed policies as well as the default policy for a cluster. We'll need new shell commands for doing this too. [~xinwei] / [~surendrasingh] are you interested in working on this? If not, I can pick it up. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15855094#comment-15855094 ] Zhe Zhang commented on HDFS-7859: - Thanks for the thoughts Andrew. I think HDFS-11314 is indeed necessary to filter out unsuitable policies. Other than "ID/name that we already use, or an ID/name we might want to hardcode later", what other validations do you have in mind? >From our current production perspective, the built-in EC policies are >sufficient. We prefer a lower complexity implementation at least in the >initial 3.0 GA. If we do decide to add pluggable EC policies in 3.0 GA, can we >add an on-off config option for the entire pluggable logic and default to off? > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15847858#comment-15847858 ] Andrew Wang commented on HDFS-7859: --- I re-read through the history of this JIRA, and it seems like we've debated a couple times whether it's useful to persist this information, with the current status of the patch being to only persist user-added policies. I think this is not very useful as is, and potentially dangerous. We let the user specify any ECPolicy they want, without much field validation. This means the user could specify an ID/name that we already use, or an ID/name we might want to hardcode later. Even with validation, this makes upgrade difficult. Given that we haven't finished the pluggable EC policy work, we also don't know what fields might be required to fully specify an EC policy. This patch does let the user configure different parameters for Reed Solomon, but we already provide what we think are a good set of hardcoded policies to choose from. IMO where some persistence would be useful is for HDFS-11314. We'd like to restrict the set of EC policies that can be used on a cluster, since fault tolerance depends on the # of nodes and racks. This would be limiting from the set of hardcoded policies though, rather than adding new policies. [~drankye], [~zhz], thoughts on this? > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin >Priority: Blocker > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859.001.patch, HDFS-7859.002.patch, > HDFS-7859.004.patch, HDFS-7859.005.patch, HDFS-7859.006.patch, > HDFS-7859.007.patch, HDFS-7859.008.patch, HDFS-7859.009.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.003.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.15#6346) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
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https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15752703#comment-15752703
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Hadoop QA commented on HDFS-7859:
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0s{color} | {color:green} The patch appears to include 5 new or modified test
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0m 47s{color} | {color:orange} hadoop-hdfs-project: The patch generated 2 new +
1197 unchanged - 2 fixed = 1199 total (was 1199) {color} |
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests | hadoop.hdfs.server.namenode.ha.TestRetryCacheWithHA |
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15750942#comment-15750942 ] Surendra Singh Lilhore commented on HDFS-7859: -- sure, I will update the patch.. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch, > HDFS-7859.008.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15747650#comment-15747650 ] SammiChen commented on HDFS-7859: - Thanks [~surendrasingh] for contributing to this task. Would you please check the findbugs, whitespace and failed test cases? > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch, > HDFS-7859.008.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15744156#comment-15744156
]
Hadoop QA commented on HDFS-7859:
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| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
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0s{color} | {color:green} The patch appears to include 3 new or modified test
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24s{color} | {color:blue} Maven dependency ordering for branch {color} |
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0m 42s{color} | {color:orange} hadoop-hdfs-project: The patch generated 2 new +
1197 unchanged - 2 fixed = 1199 total (was 1199) {color} |
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| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests | hadoop.hdfs.server.namenode.ha.TestRetryCacheWithHA |
| | hadoop.hdfs.TestSecureEncryptionZoneWithKMS |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.TestCrcCorruption |
| | hadoop.hdfs.TestTrashWithSecureEncryptionZones |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HDFS-7859 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12842725/HDFS-7859.008.patch |
| Optional Tests |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15743948#comment-15743948 ] SammiChen commented on HDFS-7859: - Hi Surendra, thanks for working on it! One suggestion is you should upload your patch with a different name, such as "HDFS-7859.009.patch". Otherwise the auto integration test will not be triggered to test again your new patch. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch, > HDFS-7859.008.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15500429#comment-15500429 ] Kai Zheng commented on HDFS-7859: - Any update or do you need any help, Xinwei? Thanks. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15435188#comment-15435188 ] Xinwei Qin commented on HDFS-7859: --- Sorry for attaching the wrong patch, not the latest one, I will correct it tomorrow morning. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch, > HDFS-7859.008.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15435140#comment-15435140
]
Hadoop QA commented on HDFS-7859:
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| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 3 new or modified test
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29s{color} | {color:blue} Maven dependency ordering for branch {color} |
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| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 42s{color} | {color:orange} hadoop-hdfs-project: The patch generated 3 new +
1220 unchanged - 2 fixed = 1223 total (was 1222) {color} |
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30s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs-client generated 1 new
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:9560f25 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12825274/HDFS-7859.008.patch |
| JIRA Issue | HDFS-7859 |
| Optional Tests | asflicense compile cc mvnsite javac unit javadoc
mvninstall findbugs checkstyle |
| uname | Linux 4340414684b8 3.13.0-92-generic #139-Ubuntu SMP Tue Jun 28
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15435092#comment-15435092 ] Xinwei Qin commented on HDFS-7859: --- Attach the new patch to fix the only TestOfflineEditsViewer failure. Checkstyle and Findbugs results are not relate to this issue. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch, > HDFS-7859.008.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15433115#comment-15433115
]
Hadoop QA commented on HDFS-7859:
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| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 2 new or modified test
files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
7s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
39s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
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0m 41s{color} | {color:orange} hadoop-hdfs-project: The patch generated 1 new +
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33s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs-client generated 1 new
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| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests |
hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:9560f25 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12825071/HDFS-7859.007.patch |
| JIRA Issue | HDFS-7859 |
| Optional Tests | asflicense compile cc mvnsite javac unit javadoc
mvninstall findbugs checkstyle |
| uname | Linux 83a4efe3a9e4 3.13.0-92-generic #139-Ubuntu SMP Tue Jun 28
20:42:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15432993#comment-15432993 ] Xinwei Qin commented on HDFS-7859: --- Hi, [~zhz], Have updated the patch with your comments and fixed some UT failure, pls review. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch, HDFS-7859.006.patch, HDFS-7859.007.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15425624#comment-15425624
]
Zhe Zhang commented on HDFS-7859:
-
Thanks [~xinwei] for the update! Patch LGTM overall. A few comments:
# {{ErasureCodingPolicyManager#saveState}} should create a smaller array at the
beginning:
{code}
List ecPolicies = Lists
.newArrayListWithCapacity(activePoliciesByName.size());
{code}
It should calculate {{userAddedPoliciesCount}] at this point and use it to
initiate {{ecPolicies}}.
# bq. About 3 and 4, I think the current method name and usage may be more
suitable,
Makes sense.
# Could you address the checkstyle and findbug issues?
I think we are very close on this one now.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch, HDFS-7859.006.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15424991#comment-15424991
]
Hadoop QA commented on HDFS-7859:
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21s{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 3 new or modified test
files. {color} |
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10s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
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| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
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| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 44s{color} | {color:orange} hadoop-hdfs-project: The patch generated 8 new +
1222 unchanged - 1 fixed = 1230 total (was 1223) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
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0s{color} | {color:green} The patch has no whitespace issues. {color} |
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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56s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 74m 39s{color}
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|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests | hadoop.hdfs.server.namenode.TestCheckpoint |
| | hadoop.hdfs.server.namenode.TestStartup |
| | hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
| | hadoop.hdfs.server.datanode.TestLargeBlockReport |
| | hadoop.hdfs.server.namenode.TestStorageRestore |
| | hadoop.hdfs.server.namenode.TestNameEditsConfigs |
| | hadoop.hdfs.server.namenode.TestSecondaryNameNodeUpgrade |
| | hadoop.hdfs.server.namenode.TestCacheDirectives |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:9560f25 |
| JIRA Patch URL |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15424776#comment-15424776
]
Xinwei Qin commented on HDFS-7859:
---
Hi, [~zhz]
I have updated the patch. About your comments, I have fixed 1, 2, 5, 6, 7.
About 3 and 4, I think the current method name and usage may be more suitable,
because {{addErasureCodingPolicy}} always does not need lock the
{{FSDirectory}}, which is similar to the {{addCacheDirective}}.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch, HDFS-7859.006.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15424774#comment-15424774
]
Xinwei Qin commented on HDFS-7859:
---
Hi, [~zhz]
I have updated the patch. About your comments, I have fixed 1, 2, 5, 6, 7.
About 3 and 4, I think the current method name and usage may be more suitable,
because {{addErasureCodingPolicy}} always does not need lock the
{{FSDirectory}}, which is similar to the {{addCacheDirective}}.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch, HDFS-7859.006.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15421090#comment-15421090
]
Xinwei Qin commented on HDFS-7859:
---
Thanks for your comments, [~zhz], I will update the patch shortly.
{{removeErasureCodingPolicy}} is similar to this, I'm glad to work on it as
well, I will fill another JIRA about it.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15418082#comment-15418082
]
Zhe Zhang commented on HDFS-7859:
-
A few more comments:
# I think we should be more clear in code and comment that we only persist the
user-added (non-builtin) policies
{code}
+ public void saveErasureCodingPolices(DataOutputStream out, String sdPath)
+ throws IOException {
...
+out.writeInt(activePoliciesByName.size());
+ public PersistState saveState() throws IOException {
+List ecPolicies = Lists
+.newArrayListWithCapacity(activePoliciesByName.size());
+List hardCodingECPolicies =
+Arrays.asList(SYS_POLICIES);
{code}
In above code, we should probably only use the number of user-added policies.
# In {{loadErasureCodingPolicies}} and {{loadState}}, we should probably also
check and WARN if a built-in ({{SYS_POLICIES}}) policy is loaded.
# {{FSDirErasureCodingOp#addErasureCodingPolicy}} can be renamed as
{{unprotectedAddErasureCodingPolicy}} to be clearer about locking
# In below code, maybe a clearer approach is to use
{{FSDirErasureCodingOp#unprotectedAddErasureCodingPolicy}}
{code}
+ fsNamesys.getErasureCodingPolicyManager()
+ .addErasureCodingPolicy(addOp.getEcPolicy());
{code}
# The asserts can be replaced by a Precondition check. Maybe we should add the
check in {{ErasureCodingManager#addErasureCodingPolicy}} too
{code}
+public AddErasureCodingPolicyOp setErasureCodingPolicy(
+ErasureCodingPolicy ecPolicy) {
+ assert(ecPolicy.getName() != null);
+ assert(ecPolicy.getSchema() != null);
+ assert(ecPolicy.getCellSize() != 0);
{code}
# {{AddErasureCodingPolicyOp#toString}} should rely on
{{ErasureCodingPolicy#toString}} to construct a String for the policy
# Below change is not necessary:
{code}
- fsn.getCacheManager().loadState(
- new CacheManager.PersistState(s, pools, directives));
+ fsn.getCacheManager()
+ .loadState(new CacheManager.PersistState(s, pools, directives));
{code}
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15417965#comment-15417965
]
Zhe Zhang commented on HDFS-7859:
-
Thanks for the comment Kai. Even without the patch in this JIRA, we are already
supporting multiple built-in policies ({{SYS_POLICIES}}). This JIRA adds
support to add non-builtin policies -- therefore we need to persist EC polices
in fsimage (otherwise all policies are just in the code). And we are adding the
{{addErasureCodingPolicy}} API in this change. Sounds like we both agree
{{removeErasureCodingPolicy}} can be done separately. But I think that
follow-on should be done before beta release for API stability. [~xinwei] Do
you have time to work on that as well? Thanks.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15416900#comment-15416900 ] Kai Zheng commented on HDFS-7859: - I remembered what we have confirmed is for phase-1 we have some built-in policies, like the default one 6+3-64k? I suggest we add another one using 10+4-64k to exercise the codes supporting multiple policies. Sounds good to me to do the work adding or removing policies in addition to this. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch, > HDFS-7859.005.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15416209#comment-15416209
]
Zhe Zhang commented on HDFS-7859:
-
Thanks [~xinwei] much for the work. I think we should prioritize this since
it's a pretty important blocker. I'm reviewing the patch and I think it looks
good overall, will post a full review shortly. Looks like it's quite similar to
how {{CacheManager}} persists state. There are several minor issues worth
fixing:
# {{required uint32 numPolicies =1;}} needs a space
# {{if(!activePoliciesByName.containsKey(ecPolicyName))}} needs a space after if
# {{ecPolicyName + " is already exists.")}} should remove "is"
# {{private void addInternal}} sounds like "addErasureCodingPolicyInternal" is
better? Or just merge it into {{addErasureCodingPolicy}}? It's a small method
anyway.
More importantly, I'd like to discuss an operational issue. What if an admin
adds a policy by mistake? Right now the policy cannot be removed or overwritten
by a correct policy with the same name. I think we should add a
{{removeErasureCodingPolicy}} operation; and I'm OK if that's done in a
follow-on JIRA. But pinging [~drankye] [~andrew.wang] [~jingzhao] for more
opinions.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch,
> HDFS-7859.005.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15361085#comment-15361085
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
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|| Vote || Subsystem || Runtime || Comment ||
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files. {color} |
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| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
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| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
34s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
29s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
13s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
18s{color} | {color:green} trunk passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
8s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
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| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
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27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
27s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 42s{color} | {color:orange} hadoop-hdfs-project: The patch generated 6 new +
1222 unchanged - 1 fixed = 1228 total (was 1223) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
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| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
38s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs-client generated 1 new
+ 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
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| {color:red}-1{color} | {color:red} unit {color} | {color:red} 73m 50s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
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{color} |
| {color:black}{color} | {color:black} {color} | {color:black}103m 14s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests |
hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:85209cc |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12815997/HDFS-7859.005.patch |
| JIRA Issue | HDFS-7859 |
| Optional Tests | asflicense compile cc mvnsite javac unit javadoc
mvninstall findbugs checkstyle |
| uname | Linux 8076befcebb3 3.13.0-36-lowlatency #63-Ubuntu SMP PREEMPT Wed
Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15350734#comment-15350734
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
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45s{color} | {color:green} trunk passed {color} |
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| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
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| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 41s{color} | {color:orange} hadoop-hdfs-project: The patch generated 17 new
+ 1081 unchanged - 1 fixed = 1098 total (was 1082) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
35s{color} | {color:green} the patch passed {color} |
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7s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 73m 58s{color}
| {color:red} hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
21s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}105m 11s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| FindBugs | module:hadoop-hdfs-project/hadoop-hdfs-client |
| | Class
org.apache.hadoop.hdfs.protocol.datatransfer.ReplaceDatanodeOnFailure$Policy
defines non-transient non-serializable instance field condition In
ReplaceDatanodeOnFailure.java:instance field condition In
ReplaceDatanodeOnFailure.java |
| Failed junit tests | hadoop.hdfs.TestBlockStoragePolicy |
| | hadoop.hdfs.TestDFSInotifyEventInputStream |
| | hadoop.hdfs.server.namenode.TestCheckpoint |
| | hadoop.hdfs.server.namenode.TestStartup |
| | hadoop.hdfs.TestDFSStorageStateRecovery |
| | hadoop.hdfs.server.namenode.TestNameNodeRecovery |
| | hadoop.hdfs.server.namenode.TestFSEditLogLoader |
| | hadoop.hdfs.server.blockmanagement.TestReplicationPolicyConsiderLoad |
| |
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15350146#comment-15350146 ] Xinwei Qin commented on HDFS-7859: --- Rebased patch still have some test failure, I'm doing my best to fix it now. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15342578#comment-15342578 ] Zhe Zhang commented on HDFS-7859: - Thanks! > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15341759#comment-15341759 ] Xinwei Qin commented on HDFS-7859: --- [~zhz], it's better to have this in 3.0, rebasing and perfect this will be done ASAP this week. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15337336#comment-15337336 ] Zhe Zhang commented on HDFS-7859: - I think this is a blocker for EC release in 3.0-alpah1. [~xinwei] [~drankye] Any plan to revive the work? Thanks a lot. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR, hdfs-ec-3.0-must-do > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15255481#comment-15255481 ] Kai Zheng commented on HDFS-7859: - Yeah. We might also need to add some tests. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15253497#comment-15253497 ] Xinwei Qin commented on HDFS-7859: --- Need to update patch to fix the checkstyles and relevant unit test failure. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch, HDFS-7859.004.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15249371#comment-15249371
]
Hadoop QA commented on HDFS-7859:
-
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 10s
{color} | {color:blue} Docker mode activated. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s
{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red} 0m 0s
{color} | {color:red} The patch doesn't appear to include any new or modified
tests. Please justify why no new tests are needed for this patch. Also please
list what manual steps were performed to verify this patch. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 36s
{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
36s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 17s
{color} | {color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 21s
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
38s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 24s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
25s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
34s {color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 26s
{color} | {color:green} trunk passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 16s
{color} | {color:green} trunk passed with JDK v1.7.0_95 {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 8s
{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
16s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 13s
{color} | {color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m 13s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 13s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 20s
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} cc {color} | {color:green} 1m 20s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red} 3m 58s {color}
| {color:red} hadoop-hdfs-project-jdk1.7.0_95 with JDK v1.7.0_95 generated 1
new + 50 unchanged - 1 fixed = 51 total (was 51) {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m 20s
{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m 37s
{color} | {color:red} hadoop-hdfs-project: patch generated 17 new + 1085
unchanged - 1 fixed = 1102 total (was 1086) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 22s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
22s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m 1s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 20s
{color} | {color:green} the patch passed with JDK v1.8.0_77 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m 8s
{color} | {color:green} the patch passed with JDK v1.7.0_95 {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 0m 49s
{color} | {color:green} hadoop-hdfs-client in the patch passed with JDK
v1.8.0_77. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 56m 54s {color}
| {color:red} hadoop-hdfs in the patch failed with JDK v1.8.0_77. {color} |
|
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15245677#comment-15245677 ] Xinwei Qin commented on HDFS-7859: --- [~rakeshr] [~drankye], and [~zhz], thanks for your comments and clarifications. Now, it is a good time to update this patch, though we should have a more clear about the details of custom policies. I am glad to rebase the patch with latest code and maybe attach it tomorrow. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[
https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15245203#comment-15245203
]
Zhe Zhang commented on HDFS-7859:
-
Thanks Kia and Rakesh for reactivating the discussion.
I agree that at this stage there isn't a clear need for custom policies.
The main motivation for persisting EC policies in NN is probably downgrade.
Assuming that we never remove any existing built-in policies from
{{ErasureCodingPolicyManager}}, we won't have issues with upgrade. But the
chance of adding an EC policy in a 3.x release is nontrivial.
So I don't think this is a 3.0 blocker. But it would be nice to have it for 3.0
release.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
--
This message was sent by Atlassian JIRA
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15242516#comment-15242516 ] Rakesh R commented on HDFS-7859: bq. I thought many considerations originally targeted for the issue have already been implemented elsewhere, therefore the only thing left is custom codec and schema support. I don't think there is a strong requirement for this feature but we can implement it perhaps in phase II I guess. Thanks for making it clear, [~drankye]. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15242515#comment-15242515 ] Rakesh R commented on HDFS-7859: bq. For the builtin schema and policies, IIRC, there was a consideration that we still need to persist the schema and policy to indicate the software upgrades (so the builtin ones may be changed). Yes, changing built-in schema is an interesting case. If we end up in a case to change the default one then persisting would be required. I think we can proceed to persist the ec policy details in the fsimage and editlog. I'm just adding a thought to understand more - probably we could explore whether layout version can be utilized to handle this kinda situations. The patch need to rebase in latest code. Would you mind rebasing it, [~xinwei]. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15242483#comment-15242483 ] Kai Zheng commented on HDFS-7859: - bq. IIUC, persistence is more necessary when we supports custom schemas, isn't it? I thought you're right. For the builtin schema and policies, IIRC, there was a consideration that we still need to persist the schema and policy to indicate the software upgrades (so the builtin ones may be changed). bq. Do we have any plan to implement HDFS-7337? I thought many considerations originally targeted for the issue have already been implemented elsewhere, therefore the only thing left is custom codec and schema support. I don't think there is a strong requirement for this feature but we can implement it perhaps in phase II I guess. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15242464#comment-15242464 ] Rakesh R commented on HDFS-7859: The proposed patch in this JIRA handles saving and loading the schema in fsimage/editlog. IIUC, persistence is more necessary when we supports custom schemas, isn't it?. I could see we are still discussing the ways to support HDFS-7337 and not yet reached a common agreement. Do we have any plan to implement HDFS-7337?. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15240784#comment-15240784 ] Kai Zheng commented on HDFS-7859: - Should this be a blocker for 3.0 release? As multiple codecs, schemas and policies are going to be all supported, would this be needed? It's great if anybody would cast some thoughts. Thanks. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15104111#comment-15104111 ] Xinwei Qin commented on HDFS-7859: --- Hi, [~drankye], I will proceed to fill this jira recently. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
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https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15104054#comment-15104054
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Hadoop QA commented on HDFS-7859:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 6s {color}
| {color:red} HDFS-7859 does not apply to HDFS-7285. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12729418/HDFS-7859-HDFS-7285.003.patch
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| JIRA Issue | HDFS-7859 |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT http://yetus.apache.org |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/14143/console |
This message was automatically generated.
> Erasure Coding: Persist erasure coding policies in NameNode
> ---
>
> Key: HDFS-7859
> URL: https://issues.apache.org/jira/browse/HDFS-7859
> Project: Hadoop HDFS
> Issue Type: Sub-task
>Reporter: Kai Zheng
>Assignee: Xinwei Qin
> Labels: BB2015-05-TBR
> Attachments: HDFS-7859-HDFS-7285.002.patch,
> HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch,
> HDFS-7859.001.patch, HDFS-7859.002.patch
>
>
> In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we
> persist EC schemas in NameNode centrally and reliably, so that EC zones can
> reference them by name efficiently.
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[jira] [Commented] (HDFS-7859) Erasure Coding: Persist erasure coding policies in NameNode
[ https://issues.apache.org/jira/browse/HDFS-7859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15104056#comment-15104056 ] Kai Zheng commented on HDFS-7859: - Hello [~xinwei], According to discussions in HDFS-7337 and related issues, and [Andrew's comment|https://issues.apache.org/jira/browse/HDFS-7337?focusedCommentId=14632005=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14632005], we can proceed here to persist the erasure coding policies in NameNode image. Please let know if any more inputs are needed here. Thanks. > Erasure Coding: Persist erasure coding policies in NameNode > --- > > Key: HDFS-7859 > URL: https://issues.apache.org/jira/browse/HDFS-7859 > Project: Hadoop HDFS > Issue Type: Sub-task >Reporter: Kai Zheng >Assignee: Xinwei Qin > Labels: BB2015-05-TBR > Attachments: HDFS-7859-HDFS-7285.002.patch, > HDFS-7859-HDFS-7285.002.patch, HDFS-7859-HDFS-7285.003.patch, > HDFS-7859.001.patch, HDFS-7859.002.patch > > > In meetup discussion with [~zhz] and [~jingzhao], it's suggested that we > persist EC schemas in NameNode centrally and reliably, so that EC zones can > reference them by name efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)
