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https://issues.apache.org/jira/browse/HDFS-8873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15987383#comment-15987383
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Hadoop QA commented on HDFS-8873:
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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} 16m
37s{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 1 new or modified test
files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m
54s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
0s{color} | {color:green} branch-2.7 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
0s{color} | {color:green} branch-2.7 passed with JDK v1.7.0_121 {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
29s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m
59s{color} | {color:green} branch-2.7 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m
16s{color} | {color:green} branch-2.7 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 2m
56s{color} | {color:red} hadoop-hdfs-project/hadoop-hdfs in branch-2.7 has 1
extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
1s{color} | {color:green} branch-2.7 passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
47s{color} | {color:green} branch-2.7 passed with JDK v1.7.0_121 {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m
52s{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 with JDK v1.8.0_131 {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} compile {color} | {color:green} 1m
0s{color} | {color:green} the patch passed with JDK v1.7.0_121 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
0s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}
0m 26s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch
generated 12 new + 505 unchanged - 7 fixed = 517 total (was 512) {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} mvneclipse {color} | {color:green} 0m
12s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch has 7372 line(s) that end in whitespace. Use
git apply --whitespace=fix <<patch_file>>. Refer
https://git-scm.com/docs/git-apply {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 2m
35s{color} | {color:red} The patch 350 line(s) with tabs. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m
1s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
6s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
57s{color} | {color:green} the patch passed with JDK v1.8.0_131 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
39s{color} | {color:green} the patch passed with JDK v1.7.0_121 {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 55m 1s{color}
| {color:red} hadoop-hdfs in the patch failed with JDK v1.7.0_121. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red} 0m
18s{color} | {color:red} The patch generated 3 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}159m 37s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| JDK v1.8.0_131 Failed junit tests |
hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot |
| | hadoop.hdfs.server.datanode.TestBlockScanner |
| | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
| JDK v1.7.0_121 Failed junit tests |
hadoop.hdfs.server.namenode.snapshot.TestSnapshotFileLength |
| | hadoop.hdfs.server.namenode.TestFileTruncate |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:c420dfe |
| JIRA Issue | HDFS-8873 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12865174/HDFS-8873-branch-2.7.009.patch
|
| Optional Tests | asflicense compile javac javadoc mvninstall mvnsite
unit findbugs checkstyle xml |
| uname | Linux e12f119e7e34 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 | branch-2.7 / bec2359 |
| Default Java | 1.7.0_121 |
| Multi-JDK versions | /usr/lib/jvm/java-8-oracle:1.8.0_131
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_121 |
| findbugs | v3.0.0 |
| findbugs |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-warnings.html
|
| checkstyle |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/whitespace-eol.txt
|
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/whitespace-tabs.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs-jdk1.7.0_121.txt
|
| JDK v1.7.0_121 Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/testReport/ |
| asflicense |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/artifact/patchprocess/patch-asflicense-problems.txt
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs U:
hadoop-hdfs-project/hadoop-hdfs |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/19220/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Allow the directoryScanner to be rate-limited
> ---------------------------------------------
>
> Key: HDFS-8873
> URL: https://issues.apache.org/jira/browse/HDFS-8873
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.7.1
> Reporter: Nathan Roberts
> Assignee: Daniel Templeton
> Labels: 2.7.2-candidate
> Fix For: 2.8.0, 3.0.0-alpha1
>
> Attachments: HDFS-8873.001.patch, HDFS-8873.002.patch,
> HDFS-8873.003.patch, HDFS-8873.004.patch, HDFS-8873.005.patch,
> HDFS-8873.006.patch, HDFS-8873.007.patch, HDFS-8873.008.patch,
> HDFS-8873.009.patch, HDFS-8873-branch-2.7.009.patch
>
>
> The new 2-level directory layout can make directory scans expensive in terms
> of disk seeks (see HDFS-8791) for details.
> It would be good if the directoryScanner() had a configurable duty cycle that
> would reduce its impact on disk performance (much like the approach in
> HDFS-8617).
> Without such a throttle, disks can go 100% busy for many minutes at a time
> (assuming the common case of all inodes in cache but no directory blocks
> cached, 64K seeks are required for full directory listing which translates to
> 655 seconds)
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