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Sangjin Lee edited comment on YARN-5097 at 5/23/16 11:26 PM: ------------------------------------------------------------- Thanks [~vrushalic]. I understand Joep was also suggesting a logging statement (with the logger)... was (Author: sjlee0): Thanks [~vrushalic]. I understand Joep also was suggesting a logging statement (with the logger)... > NPE in Separator.joinEncoded() > ------------------------------ > > Key: YARN-5097 > URL: https://issues.apache.org/jira/browse/YARN-5097 > Project: Hadoop YARN > Issue Type: Sub-task > Components: timelineserver > Affects Versions: YARN-2928 > Reporter: Sangjin Lee > Assignee: Vrushali C > Priority: Critical > Labels: yarn-2928-1st-milestone > Attachments: YARN-5097-YARN-2928.01.patch, > YARN-5097-YARN-2928.02.patch, YARN-5097-YARN-2928.03.patch > > > Both in the RM log and the NM log, I see the following exception thrown. > First for RM, > {noformat} > 2016-05-16 14:19:29,930 ERROR > org.apache.hadoop.yarn.server.timelineservice.collector.TimelineCollector: > Error aggregating timeline metrics > java.lang.NullPointerException > at > org.apache.hadoop.yarn.server.timelineservice.storage.common.Separator.joinEncoded(Separator.java:249) > at > org.apache.hadoop.yarn.server.timelineservice.storage.application.ApplicationRowKey.getRowKey(ApplicationRowKey.java:110) > at > org.apache.hadoop.yarn.server.timelineservice.storage.HBaseTimelineWriterImpl.write(HBaseTimelineWriterImpl.java:131) > at > org.apache.hadoop.yarn.server.timelineservice.collector.AppLevelTimelineCollector$AppLevelAggregator.run(AppLevelTimelineCollector.java:136) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) > at > java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351) > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) > at java.lang.Thread.run(Thread.java:722) > {noformat} > In the NM log, I see a similar exception: > {noformat} > 2016-05-16 14:54:23,116 ERROR > org.apache.hadoop.yarn.server.timelineservice.collector.TimelineCollector: > Error aggregating timeline metrics > java.lang.NullPointerException > at > org.apache.hadoop.yarn.server.timelineservice.storage.common.Separator.joinEncoded(Separator.java:249) > at > org.apache.hadoop.yarn.server.timelineservice.storage.application.ApplicationRowKey.getRowKey(ApplicationRowKey.java:110) > at > org.apache.hadoop.yarn.server.timelineservice.storage.HBaseTimelineWriterImpl.write(HBaseTimelineWriterImpl.java:131) > at > org.apache.hadoop.yarn.server.timelineservice.collector.AppLevelTimelineCollector$AppLevelAggregator.run(AppLevelTimelineCollector.java:136) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > at java.lang.Thread.run(Thread.java:745) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org