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https://issues.apache.org/jira/browse/MAPREDUCE-3618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vinod Kumar Vavilapalli updated MAPREDUCE-3618:
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Fix Version/s: 0.23.1
Status: Open (was: Patch Available)
Looks good overall. Can you set the concurrency level to match the number of
threads from TaskAttemptListener, perhaps by passing the number via constructor?
Also, please put a comment saying that the extra look up for the TaskAttempt in
the map is only when a task times out, so we should be fine.
> TaskHeartbeatHandler holds a global lock for all task-updates
> -------------------------------------------------------------
>
> Key: MAPREDUCE-3618
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3618
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2, performance
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Fix For: 0.23.1
>
> Attachments: MR3618.txt
>
>
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