Reduce frequency of Counter updates in the task tracker status
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Key: HADOOP-2208
URL: https://issues.apache.org/jira/browse/HADOOP-2208
Project: Hadoop
Issue Type: Improvement
Reporter: Amareshwari Sri Ramadasu
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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