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https://issues.apache.org/jira/browse/MAPREDUCE-3528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182888#comment-13182888
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Hudson commented on MAPREDUCE-3528:
-----------------------------------
Integrated in Hadoop-Hdfs-0.23-Commit #346 (See
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Commit/346/])
MAPREDUCE-3528. Fixed TaskHeartBeatHandler to use a new configuration for
the thread loop interval separate from task-timeout configuration property.
Contributed by Siddharth Seth.
svn merge --ignore-ancestry -c 1229403 ../../trunk/
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1229405
Files :
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/TaskHeartbeatHandler.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
> The task timeout check interval should be configurable independent of
> mapreduce.task.timeout
> --------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3528
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3528
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am, mrv2
> Affects Versions: 0.23.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Fix For: 0.23.1
>
> Attachments: MR3528.txt
>
>
> TaskHeartbeatHandler sleeps for 'mapreduce.task.timeout' - between each
> check. If a task/NM goes bad immediately after starting a task - the timeout
> is detected in ~2x the configured timeout interval.
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