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https://issues.apache.org/jira/browse/HDFS-9661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15107658#comment-15107658
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Kihwal Lee commented on HDFS-9661:
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It missed 2.7.2rc2, but it might be voted down again. Please mark it as a
blocker if you think it needs to be in 2.7.2. Otherwise, please target 2.7.3.
> Deadlock in DN.FsDatasetImpl between moveBlockAcrossStorage and createRbw
> -------------------------------------------------------------------------
>
> Key: HDFS-9661
> URL: https://issues.apache.org/jira/browse/HDFS-9661
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.7.0, 2.8.0, 2.7.1, 2.7.2
> Reporter: ade
> Assignee: Vinayakumar B
> Fix For: 2.7.2
>
> Attachments: HDFS-9661.0.patch, hdfs-9661-jstack.jpg.png
>
>
> We found a deadlock in dn.FsDatasetImpl between moveBlockAcrossStorage and
> createRbw from rpc call: replaceBlock/writeBlock. The dn's jstack result is
> !hdfs-9661-jstack.jpg.png!
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