[ https://issues.apache.org/jira/browse/YARN-3830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
nijel updated YARN-3830: ------------------------ Attachment: YARN-3830_1.patch Updated the patch. Please review > 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 > Reporter: nijel > Assignee: nijel > Attachments: YARN-3830_1.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 -- This message was sent by Atlassian JIRA (v6.3.4#6332)