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https://issues.apache.org/jira/browse/YARN-666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13659686#comment-13659686
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Lohit Vijayarenu commented on YARN-666:
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This looks good. Few minor point/JIRAs against metrics, reporting and UI pages
updates with different version of yarn daemon should also be included. As
Karthik already mentioned, it would be very useful if this followed HDFS-2983.
This will become very useful for people who manage and do rolling upgrades on
cluster.
Another question regarding draining of NodeManager. Do we have a concept of
Blacklisting NodeManager today? Reason I ask is, if we know we can afford to
kill running apps on nodemanager, but do not want new jobs to be submitted, one
could potentially use blacklisting.
> [Umbrella] Support rolling upgrades in YARN
> -------------------------------------------
>
> Key: YARN-666
> URL: https://issues.apache.org/jira/browse/YARN-666
> Project: Hadoop YARN
> Issue Type: Improvement
> Affects Versions: 2.0.4-alpha
> Reporter: Siddharth Seth
> Attachments: YARN_Rolling_Upgrades.pdf, YARN_Rolling_Upgrades_v2.pdf
>
>
> Jira to track changes required in YARN to allow rolling upgrades, including
> documentation and possible upgrade routes.
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