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https://issues.apache.org/jira/browse/YARN-6142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16170859#comment-16170859
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Ray Chiang commented on YARN-6142:
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[~andrew.wang], I'll have to do the rest of the .proto files post beta1, but
before GA.
For JACC output, I'm down to 217 issues out of the 3207 generated by JACC. All
the issues I've found so far are already documented as "Incompatible" in
existing JIRAs.
> Support rolling upgrade between 2.x and 3.x
> -------------------------------------------
>
> Key: YARN-6142
> URL: https://issues.apache.org/jira/browse/YARN-6142
> Project: Hadoop YARN
> Issue Type: Task
> Components: rolling upgrade
> Affects Versions: 3.0.0-alpha2
> Reporter: Andrew Wang
> Assignee: Ray Chiang
> Priority: Blocker
>
> Counterpart JIRA to HDFS-11096. We need to:
> * examine YARN and MR's JACC report for binary and source incompatibilities
> * run the [PB
> differ|https://issues.apache.org/jira/browse/HDFS-11096?focusedCommentId=15816405&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15816405]
> that Sean wrote for HDFS-11096 for the YARN PBs.
> * sanity test some rolling upgrades between 2.x and 3.x. Ideally these are
> automated and something we can run upstream.
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