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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10924) Add a new instrumented read-write lock
Date Fri, 30 Sep 2016 08:53:22 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jingcheng Du updated HDFS-10924:
--------------------------------
    Attachment: HDFS-10924-2.patch

Remove some unnecessary classes, add unit tests, and fix the warnings in checkStyle and findBugs.

> Add a new instrumented read-write lock
> --------------------------------------
>
>                 Key: HDFS-10924
>                 URL: https://issues.apache.org/jira/browse/HDFS-10924
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>         Attachments: HDFS-10924-2.patch, HDFS-10924.patch
>
>
> Add a new instrumented read-write lock in hadoop common, so that the HDFS-9668 can use
this to improve the locking in FsDatasetImpl



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