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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5620) Core changes in NodeManager to support re-initialization of Containers with new launchContext
Date Mon, 26 Sep 2016 16:26:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-5620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15523515#comment-15523515

Jian He commented on YARN-5620:

I think we need one more jira to release the older than previous resources, if the container
is upgraded from v1 -> v2 -> v3.  The v1 resources are not referenced by container any
more, it needs to be released, I briefly checked the code, maybe below code in ResourceLocalizationService
need to be invoked for v1 resources.
    for (Map.Entry<LocalResourceVisibility, Collection<LocalResourceRequest>>
e :
         rsrcs.entrySet()) {
      LocalResourcesTracker tracker = getLocalResourcesTracker(e.getKey(), c.getUser(), 
      for (LocalResourceRequest req : e.getValue()) {
        tracker.handle(new ResourceReleaseEvent(req,

> Core changes in NodeManager to support re-initialization of Containers with new launchContext
> ---------------------------------------------------------------------------------------------
>                 Key: YARN-5620
>                 URL: https://issues.apache.org/jira/browse/YARN-5620
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>             Fix For: 2.9.0, 3.0.0-alpha2
>         Attachments: YARN-5620.001.patch, YARN-5620.002.patch, YARN-5620.003.patch, YARN-5620.004.patch,
YARN-5620.005.patch, YARN-5620.006.patch, YARN-5620.007.patch, YARN-5620.008.patch, YARN-5620.009.patch,
YARN-5620.010.patch, YARN-5620.011.patch, YARN-5620.012.patch, YARN-5620.013.patch, YARN-5620.014.patch,
YARN-5620.015.patch, YARN-5620.016.patch
> JIRA proposes to modify the ContainerManager (and other core classes) to support upgrade
of a running container with a new {{ContainerLaunchContext}} as well as the ability to rollback
the upgrade if the container is not able to restart using the new launch Context. 

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