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Posted to mapreduce-issues@hadoop.apache.org by "Ambud Sharma (Commented) (JIRA)" <ji...@apache.org> on 2012/02/16 11:54:59 UTC
[jira] [Commented] (MAPREDUCE-2170) Send out last-minute load
averages in TaskTrackerStatus
[ https://issues.apache.org/jira/browse/MAPREDUCE-2170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13209262#comment-13209262 ]
Ambud Sharma commented on MAPREDUCE-2170:
-----------------------------------------
Hi,
I am wondering if keeping that(systemaverageload) as a separate RPC call used/made when need would make more sense?
-Ambud
> 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: New Feature
> Components: jobtracker
> Affects Versions: 0.22.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Critical
> Fix For: 0.24.0
>
> Attachments: mapreduce.loadaverage.r3.diff, mapreduce.loadaverage.r4.diff, mapreduce.loadaverage.r5.diff, mapreduce.loadaverage.r6.diff
>
> Original Estimate: 20m
> Remaining Estimate: 20m
>
> 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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