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https://issues.apache.org/jira/browse/HDFS-14648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16918855#comment-16918855
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Hadoop QA commented on HDFS-14648:
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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
46s{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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
11s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 18m
8s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m
55s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
50s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
44s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
13m 54s{color} | {color:green} branch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 3m
38s{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
27s{color} | {color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
13s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
57s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 3m
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 3m
34s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
53s{color} | {color:green} hadoop-hdfs-project: The patch generated 0 new + 127
unchanged - 1 fixed = 127 total (was 128) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m
56s{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 7 line(s) that end in whitespace. Use git
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
{color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green} 0m
2s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green}
12m 31s{color} | {color:green} patch has no errors when building and testing
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
17s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
26s{color} | {color:red} hadoop-hdfs-project_hadoop-hdfs-client generated 1 new
+ 0 unchanged - 0 fixed = 1 total (was 0) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m
47s{color} | {color:green} hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}112m 41s{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}184m 42s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.TestPread |
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|| Subsystem || Report/Notes ||
| Docker | Client=18.09.7 Server=18.09.7 Image:yetus/hadoop:bdbca0e53b4 |
| JIRA Issue | HDFS-14648 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12978902/HDFS-14648.005.patch |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient findbugs checkstyle xml |
| uname | Linux 867e469805f8 4.15.0-52-generic #56-Ubuntu SMP Tue Jun 4
22:49:08 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / 8e779a1 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_222 |
| findbugs | v3.1.0-RC1 |
| whitespace |
https://builds.apache.org/job/PreCommit-HDFS-Build/27720/artifact/out/whitespace-eol.txt
|
| javadoc |
https://builds.apache.org/job/PreCommit-HDFS-Build/27720/artifact/out/diff-javadoc-javadoc-hadoop-hdfs-project_hadoop-hdfs-client.txt
|
| unit |
https://builds.apache.org/job/PreCommit-HDFS-Build/27720/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-HDFS-Build/27720/testReport/ |
| Max. process+thread count | 2619 (vs. ulimit of 5500) |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client
hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/27720/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> DeadNodeDetector basic model
> ----------------------------
>
> Key: HDFS-14648
> URL: https://issues.apache.org/jira/browse/HDFS-14648
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Lisheng Sun
> Assignee: Lisheng Sun
> Priority: Major
> Attachments: HDFS-14648.001.patch, HDFS-14648.002.patch,
> HDFS-14648.003.patch, HDFS-14648.004.patch, HDFS-14648.005.patch
>
>
> This Jira constructs DeadNodeDetector state machine model. The function it
> implements as follow:
> # When a DFSInputstream is opened, a BlockReader is opened. If some DataNode
> of the block is found to inaccessible, put the DataNode into
> DeadNodeDetector#deadnode.(HDFS-14649) will optimize this part. Because when
> DataNode is not accessible, it is likely that the replica has been removed
> from the DataNode.Therefore, it needs to be confirmed by re-probing and
> requires a higher priority processing.
> # DeadNodeDetector will periodically detect the Node in
> DeadNodeDetector#deadnode, If the access is successful, the Node will be
> moved from DeadNodeDetector#deadnode. Continuous detection of the dead node
> is necessary. The DataNode need rejoin the cluster due to a service
> restart/machine repair. The DataNode may be permanently excluded if there is
> no added probe mechanism.
> # DeadNodeDetector#dfsInputStreamNodes Record the DFSInputstream using
> DataNode. When the DFSInputstream is closed, it will be moved from
> DeadNodeDetector#dfsInputStreamNodes.
> # Every time get the global deanode, update the DeadNodeDetector#deadnode.
> The new DeadNodeDetector#deadnode Equals to the intersection of the old
> DeadNodeDetector#deadnode and the Datanodes are by
> DeadNodeDetector#dfsInputStreamNodes.
> # DeadNodeDetector has a switch that is turned off by default. When it is
> closed, each DFSInputstream still uses its own local deadnode.
> # This feature has been used in the XIAOMI production environment for a long
> time. Reduced hbase read stuck, due to node hangs.
> # Just open the DeadNodeDetector switch and you can use it directly. No
> other restrictions. Don't want to use DeadNodeDetector, just close it.
> {code:java}
> if (sharedDeadNodesEnabled && deadNodeDetector == null) {
> deadNodeDetector = new DeadNodeDetector(name);
> deadNodeDetectorThr = new Daemon(deadNodeDetector);
> deadNodeDetectorThr.start();
> }
> {code}
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