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https://issues.apache.org/jira/browse/HDFS-3981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13625729#comment-13625729
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Todd Lipcon commented on HDFS-3981:
-----------------------------------
Failed test looks like HDFS-3267 (unrelated). I'll commit this momentarily.
> access time is set without holding FSNamesystem write lock
> ----------------------------------------------------------
>
> Key: HDFS-3981
> URL: https://issues.apache.org/jira/browse/HDFS-3981
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 0.23.3, 2.0.3-alpha, 0.23.5
> Reporter: Xiaobo Peng
> Assignee: Xiaobo Peng
> Attachments: HDFS-3981-branch-0.23.4.patch,
> HDFS-3981-branch-0.23.patch, HDFS-3981-branch-2.patch, HDFS-3981-trunk.patch,
> hdfs-3981.txt
>
>
> Incorrect condition in {{FSNamesystem.getBlockLocatoins()}} can lead to
> updating times without write lock. In most cases this condition will force
> {{FSNamesystem.getBlockLocatoins()}} to hold write lock, even if times do not
> need to be updated.
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