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https://issues.apache.org/jira/browse/MAPREDUCE-7483?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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John Doe updated MAPREDUCE-7483:
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Description: If getTask() in TaskAttemptListenerImpl happens twice, the
element in jvmIDToActiveAttemptMap can be already removed by unregister() and
getTask can cause a deadlock. (was: If unregister() happens before getTask()
in TaskAttemptListenerImpl, the element in jvmIDToActiveAttemptMap can be
already removed by unregister() and getTask can cause a deadlock.)
> getTask() can cause a dead lock
> -------------------------------
>
> Key: MAPREDUCE-7483
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7483
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.0.0-alpha
> Reporter: John Doe
> Priority: Major
> Fix For: 0.23.0
>
>
> If getTask() in TaskAttemptListenerImpl happens twice, the element in
> jvmIDToActiveAttemptMap can be already removed by unregister() and getTask
> can cause a deadlock.
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