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https://issues.apache.org/jira/browse/HDFS-6340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13990999#comment-13990999
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Rahul Singhal commented on HDFS-6340:
-------------------------------------
One more question:
Currently, the {{FinalizeCommand}} will be sent with every block report even
after the upgrade is finalized. Although it will have no effect, would it be
better (& worth it) to have some kind of check to prevent this?
> DN can't finalize upgarde
> -------------------------
>
> Key: HDFS-6340
> URL: https://issues.apache.org/jira/browse/HDFS-6340
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.4.0
> Reporter: Rahul Singhal
> Priority: Blocker
> Attachments: HDFS-6340-branch-2.4.0.patch, HDFS-6340.patch
>
>
> I upgraded a (NN) HA cluster from 2.2.0 to 2.4.0. After I issued the
> '-finalizeUpgarde' command, NN was able to finalize the upgrade but DN
> couldn't (I waited for the next block report).
> I think I have found the problem to be due to HDFS-5153. I will attach a
> proposed fix.
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