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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-9145) Tracking methods that hold FSNamesytemLock for too long
Date Thu, 25 Aug 2016 22:31:20 GMT

     [ https://issues.apache.org/jira/browse/HDFS-9145?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kihwal Lee updated HDFS-9145:
-----------------------------
    Attachment: testlog.txt

I am not sure how helpful this log will be. I am using openjdk 1.8.0_101 on my box.

> 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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