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https://issues.apache.org/jira/browse/HADOOP-2208?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12550047
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Amareshwari Sri Ramadasu commented on HADOOP-2208:
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The attached patch sends updated counters. We mark counters as updated when
they are created with a value or an increment operation is done. And sending
the counters is capped at 1min.
> Reduce frequency of Counter updates in the task tracker status
> --------------------------------------------------------------
>
> Key: HADOOP-2208
> URL: https://issues.apache.org/jira/browse/HADOOP-2208
> Project: Hadoop
> Issue Type: Improvement
> Reporter: Amareshwari Sri Ramadasu
> Assignee: Amareshwari Sri Ramadasu
> Fix For: 0.16.0
>
> Attachments: patch-2208.txt
>
>
> Currently, We have counter updates from task tracker to job tracker on every
> heartbeat. Both counter name and the values are updated for every heartbeat.
> This can be improved by sending names and values for the first time and only
> the values after that.
> The frequency can be reduced by doing update only when the counters got
> changed.
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