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https://issues.apache.org/jira/browse/HDFS-6848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122163#comment-14122163
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Arpit Agarwal commented on HDFS-6848:
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[~jingzhao] pointed out I forgot to push this change to branch-2. Just did so.
> Lack of synchronization on access to datanodeUuid in DataStorage#format()
> --------------------------------------------------------------------------
>
> Key: HDFS-6848
> URL: https://issues.apache.org/jira/browse/HDFS-6848
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Ted Yu
> Assignee: Xiaoyu Yao
> Priority: Minor
> Fix For: 2.6.0
>
> Attachments: HDFS-6848.0.patch
>
>
> {code}
> this.datanodeUuid = datanodeUuid;
> {code}
> The above assignment should be done holding lock "DataStorage.this" - as is
> done in two other places.
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