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https://issues.apache.org/jira/browse/YARN-303?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Devaraj K updated YARN-303:
---------------------------
Target Version/s: 3.0.0, 2.1.0-beta
> ProcfsBasedProcessTree throws ConcurrentModificationException
> -------------------------------------------------------------
>
> Key: YARN-303
> URL: https://issues.apache.org/jira/browse/YARN-303
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.0.2-alpha, 3.0.0, 2.0.1-alpha
> Reporter: Devaraj K
> Assignee: Devaraj K
>
> {code:xml}
> Error: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$EntryIterator.next(HashMap.java:834)
> at java.util.HashMap$EntryIterator.next(HashMap.java:832)
> at
> org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.getProcessTree(ProcfsBasedProcessTree.java:208)
> at
> org.apache.hadoop.yarn.util.LinuxResourceCalculatorPlugin.getProcResourceValues(LinuxResourceCalculatorPlugin.java:406)
> at
> org.apache.hadoop.mapred.Task.getCurrentProcResourceValues(Task.java:810)
> at
> org.apache.hadoop.mapred.BlockMapOutputBuffer.sortAndSpill(BlockMapOutputBuffer.java:235)
> at
> org.apache.hadoop.mapred.BlockMapOutputBuffer.flush(BlockMapOutputBuffer.java:322)
> at
> org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:677)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:745)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:333)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:154)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:149)
> {code}
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