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https://issues.apache.org/jira/browse/HDFS-15076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17001361#comment-17001361
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Konstantin Shvachko commented on HDFS-15076:
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There is a bunch of tests that don't hold any lock at all while calling e.g.
{{fsdir.getINode()}} or {{fsdir.getINodesInPath()}}. We should eventually fix
them as well, since they most likely contribute to non-deterministic runs of
Jenkins builds. But this is not the goal of this jira. Targeting missing double
locks only here.
> Fix tests that hold FSDirectory lock, without holding FSNamesystem lock.
> ------------------------------------------------------------------------
>
> Key: HDFS-15076
> URL: https://issues.apache.org/jira/browse/HDFS-15076
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: test
> Reporter: Konstantin Shvachko
> Priority: Major
>
> Three tests {{TestGetBlockLocations}}, {{TestFSNamesystem}},
> {{TestDiskspaceQuotaUpdate}} use {{FSDirectory}} methods, which hold
> FSDirectory lock. They should also hold the global Namesystem lock.
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