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