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https://issues.apache.org/jira/browse/MAPREDUCE-1680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854761#action_12854761
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Arun C Murthy commented on MAPREDUCE-1680:
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Some feedback:
# We do not need both JobTrackerInstrumentation.heartbeat and
JobTrackerInstrumentation.heartbeats(int), just one of the apis should suffice
- say JobTrackerInstrumentation.heartbeat(long increment).
# You'll need to get JobTrackerMetricsInst.doUpdates to send them out by
incrementing a metric, say "heartbeat"
> Add a metrics to track the number of heartbeats processed
> ---------------------------------------------------------
>
> Key: MAPREDUCE-1680
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1680
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Hong Tang
> Assignee: Dick King
> Attachments: mapreduce-1680--2010-04-07.patch
>
>
> It would be nice to add a metrics that tracks the number of heartbeats
> processed by JT.
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