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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4351) Make ContainersMonitor pluggable
Date Fri, 13 Jul 2012 00:46:35 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4351?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413383#comment-13413383
] 

Arun C Murthy commented on MAPREDUCE-4351:
------------------------------------------

It seems like we have a couple of things we need to support:

a) Ability for NM to monitor containers for resource usage (e.g. a container might use only
1G even if it was allocated 2G etc.).
b) Ability for NM to enforce the resource limits.

Thus, it might be better for this to be called ContainerResourceEnforcer or some such? We'd
like ContainerMonitor to merely monitor containers.
                
> Make ContainersMonitor pluggable
> --------------------------------
>
>                 Key: MAPREDUCE-4351
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4351
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: mrv2, nodemanager
>            Reporter: Andrew Ferguson
>            Assignee: Andrew Ferguson
>         Attachments: MAPREDUCE-4351-v1.patch, MAPREDUCE-4351-v2.patch, MAPREDUCE-4351-v3.patch,
MAPREDUCE-4351-v4.patch, MAPREDUCE-4351-v4.patch, MAPREDUCE-4351-v5.patch, MAPREDUCE-4351-v5.patch,
MAPREDUCE-4351-v6.patch
>
>
> Make the existing ContainersManager pluggable, just as the ContainerExecutor is currently.
This will allow us to add container resource enforcement using other techniques (such as cgroups)
in an extensible fashion.

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