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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1197) Support changing resources of an allocated container
Date Wed, 02 Oct 2013 14:36:46 GMT

    [ https://issues.apache.org/jira/browse/YARN-1197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784012#comment-13784012
] 

Wangda Tan commented on YARN-1197:
----------------------------------

To [~tucu00],
I think the heap size change (Xmx, etc.) of running JVM based container is not totally related
to this topic. If user want to change a JVM-based container size, he/she may use a "watcher"
process launch the "worker" process in a container, and relaunch the "worker" process with
different JVM parameters if needed.
In a word, if we cannot solve this in language side, we can solve it in application side.

> 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
>         Attachments: 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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