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https://issues.apache.org/jira/browse/HDFS-9145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15437857#comment-15437857
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Mingliang Liu commented on HDFS-9145:
-------------------------------------
[~kihwal] are you able to reproduce this failure consistently? How about the
test without this patch?
On my local machine, I can not reproduce the bug on Java8 against the
{{branch-2}} specifying {{TestFSNamesystem}} class (9 test cases).
> Tracking methods that hold FSNamesytemLock for too long
> -------------------------------------------------------
>
> Key: HDFS-9145
> URL: https://issues.apache.org/jira/browse/HDFS-9145
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Jing Zhao
> Assignee: Mingliang Liu
> Fix For: 2.8.0, 2.7.4
>
> Attachments: HDFS-9145.000.patch, HDFS-9145.001.patch,
> HDFS-9145.002.patch, HDFS-9145.003.patch, testlog.txt
>
>
> It will be helpful that if we can have a way to track (or at least log a msg)
> if some operation is holding the FSNamesystem lock for a long time.
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