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https://issues.apache.org/jira/browse/MAPREDUCE-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927315#action_12927315
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Scott Chen commented on MAPREDUCE-2170:
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+1 on Allen's idea of using getSystemLoadAvg() in
ResourceCalculatorPlugin.getSystemLoadAverage(). So if in the future people
have added a new ResourceCalculatorPlugin for other platform, they can directly
use this method.
I think it is better to put this in ResourceCalculatorPlugin to keep similar
tools in the same class.
> Send out last-minute load averages in TaskTrackerStatus
> -------------------------------------------------------
>
> Key: MAPREDUCE-2170
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2170
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Affects Versions: 0.22.0
> Environment: GNU/Linux
> Reporter: Harsh J Chouraria
> Assignee: Harsh J Chouraria
> Priority: Minor
> Fix For: 0.22.0
>
> Original Estimate: 0.33h
> Remaining Estimate: 0.33h
>
> Load averages could be useful in scheduling. This patch looks to extend the
> existing Linux resource plugin (via /proc/loadavg file) to allow transmitting
> load averages of the last one minute via the TaskTrackerStatus.
> Patch is up for review, with test cases added, at:
> https://reviews.apache.org/r/20/
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