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Posted to yarn-issues@hadoop.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2015/07/01 13:29:05 UTC
[jira] [Commented] (YARN-3830)
AbstractYarnScheduler.createReleaseCache may try to clean a null attempt
[ https://issues.apache.org/jira/browse/YARN-3830?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609965#comment-14609965 ]
Hadoop QA commented on YARN-3830:
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| (/) *{color:green}+1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 15m 47s | 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 34s | There were no new javac warning messages. |
| {color:green}+1{color} | javadoc | 9m 34s | There were no new javadoc warning messages. |
| {color:green}+1{color} | release audit | 0m 23s | The applied patch does not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle | 0m 45s | There were no new checkstyle issues. |
| {color:green}+1{color} | whitespace | 0m 1s | The patch has no lines that end in whitespace. |
| {color:green}+1{color} | install | 1m 36s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 33s | The patch built with eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 1m 26s | The patch does not introduce any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | yarn tests | 50m 56s | Tests passed in hadoop-yarn-server-resourcemanager. |
| | | 88m 38s | |
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|| Subsystem || Report/Notes ||
| Patch URL | http://issues.apache.org/jira/secure/attachment/12743024/YARN-3830_4.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 7405c59 |
| hadoop-yarn-server-resourcemanager test log | https://builds.apache.org/job/PreCommit-YARN-Build/8403/artifact/patchprocess/testrun_hadoop-yarn-server-resourcemanager.txt |
| Test Results | https://builds.apache.org/job/PreCommit-YARN-Build/8403/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf906.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/8403/console |
This message was automatically generated.
> AbstractYarnScheduler.createReleaseCache may try to clean a null attempt
> ------------------------------------------------------------------------
>
> Key: YARN-3830
> URL: https://issues.apache.org/jira/browse/YARN-3830
> Project: Hadoop YARN
> Issue Type: Bug
> Components: scheduler
> Reporter: nijel
> Assignee: nijel
> Attachments: YARN-3830_1.patch, YARN-3830_2.patch, YARN-3830_3.patch, YARN-3830_4.patch
>
>
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler.createReleaseCache()
> {code}
> protected void createReleaseCache() {
> // Cleanup the cache after nm expire interval.
> new Timer().schedule(new TimerTask() {
> @Override
> public void run() {
> for (SchedulerApplication<T> app : applications.values()) {
> T attempt = app.getCurrentAppAttempt();
> synchronized (attempt) {
> for (ContainerId containerId : attempt.getPendingRelease()) {
> RMAuditLogger.logFailure(
> {code}
> Here the attempt can be null since the attempt is created later. So null pointer exception will come
> {code}
> 2015-06-19 09:29:16,195 | ERROR | Timer-3 | Thread Thread[Timer-3,5,main] threw an Exception. | YarnUncaughtExceptionHandler.java:68
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.resourcemanager.scheduler.AbstractYarnScheduler$1.run(AbstractYarnScheduler.java:457)
> at java.util.TimerThread.mainLoop(Timer.java:555)
> at java.util.TimerThread.run(Timer.java:505)
> {code}
> This will skip the other applications in this run.
> Can add a null check and continue with other applications
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