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https://issues.apache.org/jira/browse/YARN-5097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15294173#comment-15294173
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Li Lu commented on YARN-5097:
-----------------------------
Seems like we're not generating findbugs files for the newly added module?
> 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
>
>
> 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}
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