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https://issues.apache.org/jira/browse/YARN-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16822033#comment-16822033
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Íñigo Goiri commented on YARN-2889:
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For the first one, just use a different user name (say user1) in the new case;
no point on changing others.
The other tests don't go over the limit.
Right now, with the new limit, we have three cases that I'd like to test:
* We actually limit. Say 2 as we have now.
* We don't limit with a -1 and we see that all of them pass.
* We limit with a number higher of the requests.
This would fully cover the new feature and not just rely.
> Limit the number of opportunistic container allocated per AM heartbeat
> ----------------------------------------------------------------------
>
> Key: YARN-2889
> URL: https://issues.apache.org/jira/browse/YARN-2889
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: nodemanager, resourcemanager
> Reporter: Konstantinos Karanasos
> Assignee: Abhishek Modi
> Priority: Major
> Attachments: YARN-2889.001.patch, YARN-2889.002.patch,
> YARN-2889.003.patch
>
>
> We introduce a way to limit the number of opportunistic containers that will
> be allocated on each AM heartbeat.
> This way we can restrict the number of opportunistic containers handed out
> by the system, as well as throttle down misbehaving AMs (asking for too many
> opportunistic containers).
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