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Posted to mapreduce-dev@hadoop.apache.org by "Amol Kekre (Created) (JIRA)" <ji...@apache.org> on 2012/01/06 03:45:39 UTC
[jira] [Created] (MAPREDUCE-3631) Corner case in headroom
calculation
Corner case in headroom calculation
-----------------------------------
Key: MAPREDUCE-3631
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3631
Project: Hadoop Map/Reduce
Issue Type: Task
Components: mrv2
Affects Versions: 0.23.0
Reporter: Amol Kekre
Fix For: 0.23.1
When there is a single queue and a large job fills up the whole cluster, a lost NM can lead to wrong headroom when all
slots are taken up by reduces since at that point headroom isn't recomputed.
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[jira] [Resolved] (MAPREDUCE-3631) Corner case in headroom
calculation
Posted by "Arun C Murthy (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-3631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy resolved MAPREDUCE-3631.
--------------------------------------
Resolution: Duplicate
Fixed via MAPREDUCE-3126.
> Corner case in headroom calculation
> -----------------------------------
>
> Key: MAPREDUCE-3631
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3631
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Amol Kekre
> Fix For: 0.23.1
>
>
> When there is a single queue and a large job fills up the whole cluster, a lost NM can lead to wrong headroom when all
> slots are taken up by reduces since at that point headroom isn't recomputed.
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