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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5164) deleteSnapshot should check if OperationCategory.WRITE is possible before taking write lock
Date Thu, 05 Sep 2013 22:19:52 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13759545#comment-13759545
] 

Andrew Wang commented on HDFS-5164:
-----------------------------------

+1 pending Jenkins. Seems safe for 2.1.1 too (so a fun quad commit).
                
> deleteSnapshot should check if OperationCategory.WRITE is possible before taking write
lock
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5164
>                 URL: https://issues.apache.org/jira/browse/HDFS-5164
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.3.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>            Priority: Minor
>         Attachments: HDFS-5164.001.patch
>
>
> deleteSnapshot should check if OperationCategory.WRITE is possible before taking the
write lock, to help avoid lock contention

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