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https://issues.apache.org/jira/browse/HADOOP-1610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12514340
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David Bowen commented on HADOOP-1610:
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In TaskTrackerMetrics.doUpdates(), I think the resetting of the three fields to
zero should be inside the synchronized block. The call to
metricsRecord.update() could optionally be moved out of the synchronized block,
since this method is only intended to be called from the metrics timer thread.
> Add metrics for failed tasks
> ----------------------------
>
> Key: HADOOP-1610
> URL: https://issues.apache.org/jira/browse/HADOOP-1610
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Affects Versions: 0.14.0
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Fix For: 0.15.0
>
> Attachments: 1610.1.patch, 1610.1.patch, 1610.patch
>
>
> Add metrics for failed tasks - specifically tasks that kill themselves due to
> communication failure with the tasktracker (exit status 65), and those that
> are killed due to lack of progress reporting.
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