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https://issues.apache.org/jira/browse/HADOOP-1038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12475512
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David Bowen commented on HADOOP-1038:
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Should the rate (counts/second) be a running average, say the per-minute rate,
updated every minute? Or what?
> counters: want rates and averages, and phase-level sums
> -------------------------------------------------------
>
> Key: HADOOP-1038
> URL: https://issues.apache.org/jira/browse/HADOOP-1038
> Project: Hadoop
> Issue Type: New Feature
> Components: mapred
> Reporter: Doug Cutting
>
> It would be nice if the web ui displayed, for each counter, not just its
> total, but also its rate (counts/second). Also, for job-level counts,
> per-task averages should be displayed, of both total and rate. Ideally we
> could also include phase-level counts (map versus reduce). Thus we could
> display, e.g., average map task input bytes/second for a job.
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