Andrew Wang created HDFS-11389:
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Summary: Support rolling upgrade between 2.x and 3.x
Key: HDFS-11389
URL: https://issues.apache.org/jira/browse/HDFS-11389
Project: Hadoop HDFS
Issue Type: Task
Components: rolling upgrades
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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