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Posted to yarn-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2017/10/31 19:41:00 UTC

[jira] [Commented] (YARN-7240) Add more states and transitions to stabilize the NM Container state machine

    [ https://issues.apache.org/jira/browse/YARN-7240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16227379#comment-16227379 ] 

Andrew Wang commented on YARN-7240:
-----------------------------------

Hi Arun, did you mean for this to go into branch-3.0 also?

> Add more states and transitions to stabilize the NM Container state machine
> ---------------------------------------------------------------------------
>
>                 Key: YARN-7240
>                 URL: https://issues.apache.org/jira/browse/YARN-7240
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun Suresh
>            Assignee: kartheek muthyala
>             Fix For: 2.9.0, 3.0.0
>
>         Attachments: YARN-7240.001.patch, YARN-7240.002.patch, YARN-7240.002.patch
>
>
> There seem to be a few intermediate states that can be added to improve the stability of the NM container state machine.
> For. eg:
> * The REINITIALIZING should probably be split into REINITIALIZING and REINITIALIZING_AWAITING_KILL. 
> * Container updates are currently handled in the ContainerScheduler, but it would probably be better to have it plumbed through the container state machine as a new state, say UPDATING and a new container event.
> The plan is to add some extra tests too to try and test every transition.



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