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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6975) Consider removing heavyweight synchronization for FsDatasetImpl operations
Date Fri, 29 Aug 2014 19:25:54 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arpit Agarwal updated HDFS-6975:
--------------------------------

    Affects Version/s: 2.6.0

> Consider removing heavyweight synchronization for FsDatasetImpl operations
> --------------------------------------------------------------------------
>
>                 Key: HDFS-6975
>                 URL: https://issues.apache.org/jira/browse/HDFS-6975
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.6.0
>            Reporter: Arpit Agarwal
>
> Post HDFS-6482, I think we can remove the requirement for most operations to synchronize
on the FsDatasetImpl object lock. Especially filesystem operations need not synchronize since
block file locations are going to be deterministic.
> Jira to investigate this more rigorously.



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