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https://issues.apache.org/jira/browse/HDFS-5840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13911059#comment-13911059
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Aaron T. Myers commented on HDFS-5840:
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bq. Why not always recover in preupgrade step, instead of adding another RPC?
That seems fine to me, and would certainly make this patch more
straightforward. I'll work on that.
bq. Aaron T. Myers, realized my previous comment is incorrect. We cannot use
the rolling upgrade functionality. We should perhaps fix the issues that this
jira was targeting.
I agree with this as well.
> Follow-up to HDFS-5138 to improve error handling during partial upgrade
> failures
> --------------------------------------------------------------------------------
>
> Key: HDFS-5840
> URL: https://issues.apache.org/jira/browse/HDFS-5840
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Aaron T. Myers
> Assignee: Aaron T. Myers
> Fix For: 3.0.0
>
> Attachments: HDFS-5840.patch
>
>
> Suresh posted some good comment in HDFS-5138 after that patch had already
> been committed to trunk. This JIRA is to address those. See the first comment
> of this JIRA for the full content of the review.
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