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From "Jian He (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1368) Common work to re-populate containers’ state into scheduler
Date Wed, 14 May 2014 00:09:18 GMT

    [ https://issues.apache.org/jira/browse/YARN-1368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13997071#comment-13997071
] 

Jian He commented on YARN-1368:
-------------------------------

[~tucu00], Please understand that the patch uploaded here is completely different from the
prototype patch on YARN-556. The patch here is using a different approach to cover all schedulers
and also the whole container recovery flow is different which simplifies things a lot. This
jira itself was originally opened as “RM should populate running container allocation information
from NM resync” and did not cover recovering the schedulers. I should have opened a new
jira to express the approaches instead of renaming this one to avoid confusion.

> Common work to re-populate containers’ state into scheduler
> -----------------------------------------------------------
>
>                 Key: YARN-1368
>                 URL: https://issues.apache.org/jira/browse/YARN-1368
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Jian He
>         Attachments: YARN-1368.1.patch, YARN-1368.combined.001.patch, YARN-1368.preliminary.patch
>
>
> YARN-1367 adds support for the NM to tell the RM about all currently running containers
upon registration. The RM needs to send this information to the schedulers along with the
NODE_ADDED_EVENT so that the schedulers can recover the current allocation state of the cluster.



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