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https://issues.apache.org/jira/browse/MAPREDUCE-6740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Haibo Chen updated MAPREDUCE-6740:
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Attachment: mapreduce6740.005.patch
Per offline discussion with Karthik, the default value of task progress report
interval can be set to a portion of the value of task timeout. This gets rid of
the default value of task progress interval in MRJobConfig.java. In this patch,
the ratio is set to 0.01 so that in cases where both task report interval and
task timeout are not set explicitly, the value of task progress report defaults
to 3000 milliseconds, preserving its current default value.
> Enforce mapreduce.task.timeout to be at least
> mapreduce.task.progress-report.interval
> -------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6740
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6740
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mr-am
> Affects Versions: 2.8.0
> Reporter: Haibo Chen
> Assignee: Haibo Chen
> Priority: Minor
> Attachments: mapreduce6740.001.patch, mapreduce6740.002.patch,
> mapreduce6740.003.patch, mapreduce6740.004.patch, mapreduce6740.005.patch
>
>
> Mapreduce-6242 makes task status update interval configurable to ease the
> pressure on MR AM to process status updates, but it did not ensure that
> mapreduce.task.timeout is no smaller than the configured value of task report
> interval.
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