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https://issues.apache.org/jira/browse/YARN-5637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15500546#comment-15500546
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Varun Vasudev commented on YARN-5637:
-------------------------------------
Thanks for the patch [~asuresh]! My apologies for the delay in responding. The
patch looks mostly good to me. The only question I have to around deleting
resources as part of the rollback. Let's say you download a new jar as part of
the upgrade. When you do a rollback, this jar will be part of the classpath and
this could result in the rollback failing(due to class/function not found
issues). Is my understanding wrong?
I wouldn't hold up the patch for fixing this - we should probably do it in a
different JIRA.
> Changes in NodeManager to support Container rollback and commit
> ---------------------------------------------------------------
>
> Key: YARN-5637
> URL: https://issues.apache.org/jira/browse/YARN-5637
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Attachments: YARN-5637.001.patch, YARN-5637.002.patch,
> YARN-5637.003.patch, YARN-5637.004.patch, YARN-5637.005.patch,
> YARN-5637.006.patch, YARN-5637.007.patch
>
>
> YARN-5620 added support for re-initialization of Containers using a new
> launch Context.
> This JIRA proposes to use the above feature to support upgrade and subsequent
> rollback or commit of the upgrade.
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