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https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13828106#comment-13828106
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Sandy Ryza commented on YARN-1197:
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+1 on the current design. If possible it would be best to split this up
between a couple JIRAs - one for the increase and one for the decrease. We
could do a third for the common proto definitions if necessary.
I believe that YARN does memory enforcement in the same way whether or not the
LCE is used. I.e. it monitors the container process and kills it if its memory
consumption goes over the configured limit.
> Support changing resources of an allocated container
> ----------------------------------------------------
>
> Key: YARN-1197
> URL: https://issues.apache.org/jira/browse/YARN-1197
> Project: Hadoop YARN
> Issue Type: Task
> Components: api, nodemanager, resourcemanager
> Affects Versions: 2.1.0-beta
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: yarn-1197-v2.pdf, yarn-1197-v3.pdf, yarn-1197-v4.pdf,
> yarn-1197.pdf
>
>
> Currently, YARN cannot support merge several containers in one node to a big
> container, which can make us incrementally ask resources, merge them to a
> bigger one, and launch our processes. The user scenario is described in the
> comments.
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