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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3619) ContainerMetrics unregisters during getMetrics and leads to ConcurrentModificationException
Date Fri, 02 Oct 2015 16:48:26 GMT

    [ https://issues.apache.org/jira/browse/YARN-3619?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941374#comment-14941374
] 

Hadoop QA commented on YARN-3619:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  21m 16s | Pre-patch trunk compilation is healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any @author tags.
|
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to include 1 new
or modified test files. |
| {color:green}+1{color} | javac |   7m 50s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc |  10m  5s | There were no new javadoc warning messages.
|
| {color:red}-1{color} | release audit |   0m 16s | The applied patch generated 1 release
audit warnings. |
| {color:red}-1{color} | checkstyle |   2m 59s | The applied patch generated  1 new checkstyle
issues (total was 211, now 211). |
| {color:green}+1{color} | whitespace |   0m  1s | The patch has no lines that end in whitespace.
|
| {color:green}+1{color} | install |   1m 31s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 33s | The patch built with eclipse:eclipse.
|
| {color:red}-1{color} | findbugs |   6m 17s | The patch appears to introduce 1 new Findbugs
(version 3.0.0) warnings. |
| {color:red}-1{color} | common tests |   6m 32s | Tests failed in hadoop-common. |
| {color:green}+1{color} | yarn tests |   0m 23s | Tests passed in hadoop-yarn-api. |
| {color:green}+1{color} | yarn tests |   2m  0s | Tests passed in hadoop-yarn-common. |
| {color:green}+1{color} | yarn tests |   8m 41s | Tests passed in hadoop-yarn-server-nodemanager.
|
| | |  69m  6s | |
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|| Reason || Tests ||
| FindBugs | module:hadoop-yarn-server-nodemanager |
| Failed unit tests | hadoop.fs.sftp.TestSFTPFileSystem |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12764776/YARN-3619.alt.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 439f43a |
| Release Audit | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/patchReleaseAuditProblems.txt
|
| checkstyle |  https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/diffcheckstylehadoop-yarn-api.txt
|
| Findbugs warnings | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/newPatchFindbugsWarningshadoop-yarn-server-nodemanager.html
|
| hadoop-common test log | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/testrun_hadoop-common.txt
|
| hadoop-yarn-api test log | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/testrun_hadoop-yarn-api.txt
|
| hadoop-yarn-common test log | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/testrun_hadoop-yarn-common.txt
|
| hadoop-yarn-server-nodemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/9330/artifact/patchprocess/testrun_hadoop-yarn-server-nodemanager.txt
|
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/9330/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf905.gq1.ygridcore.net 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 |
| Console output | https://builds.apache.org/job/PreCommit-YARN-Build/9330/console |


This message was automatically generated.

> ContainerMetrics unregisters during getMetrics and leads to ConcurrentModificationException
> -------------------------------------------------------------------------------------------
>
>                 Key: YARN-3619
>                 URL: https://issues.apache.org/jira/browse/YARN-3619
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.7.0
>            Reporter: Jason Lowe
>            Assignee: zhihai xu
>         Attachments: YARN-3619.000.patch, YARN-3619.001.patch, YARN-3619.alt.patch, test.patch
>
>
> ContainerMetrics is able to unregister itself during the getMetrics method, but that
method can be called by MetricsSystemImpl.sampleMetrics which is trying to iterate the sources.
 This leads to a ConcurrentModificationException log like this:
> {noformat}
> 2015-05-11 14:00:20,360 [Timer for 'NodeManager' metrics system] WARN impl.MetricsSystemImpl:
java.util.ConcurrentModificationException
> {noformat}



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