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https://issues.apache.org/jira/browse/HADOOP-3875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated HADOOP-3875:
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Hadoop Flags: [Reviewed]
+1
> Fix TaskTracker's heartbeat timer to note the time the hearbeat RPC returned
> to decide next heartbeat time
> ----------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-3875
> URL: https://issues.apache.org/jira/browse/HADOOP-3875
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.18.0
> Reporter: Arun C Murthy
> Assignee: Arun C Murthy
> Fix For: 0.19.0
>
> Attachments: HADOOP-3875_0_20080730.patch
>
>
> The tasktracker notes the time the heartbeat RPC was fired, rather than when
> it returned to decide when to send the next one. If the RPC spends a lot of
> time in the JobTracker's queue then the above exacerbates the load on the
> JobTracker.
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