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https://issues.apache.org/jira/browse/HDFS-10828?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15524766#comment-15524766
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Arpit Agarwal commented on HDFS-10828:
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Hi [~fenghua_hu], that probably makes sense although we may need more analysis
to ensure it doesn't introduce synchronization issues.
This change is meant to fix the immediate regression and we can certainly
consider
> Fix usage of FsDatasetImpl object lock in ReplicaMap
> ----------------------------------------------------
>
> Key: HDFS-10828
> URL: https://issues.apache.org/jira/browse/HDFS-10828
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.8.0
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments: HDFS-10828.01.patch, HDFS-10828.02.patch,
> HDFS-10828.03.patch
>
>
> HDFS-10682 replaced the FsDatasetImpl object lock with a separate reentrant
> lock but missed updating an instance ReplicaMap still uses the FsDatasetImpl.
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