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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4768) block scanner does not close verification log when a block pool is being deleted (but the datanode remains running)
Date Sat, 27 Apr 2013 14:02:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13643667#comment-13643667
] 

Suresh Srinivas commented on HDFS-4768:
---------------------------------------

+1 for the patch.
                
> block scanner does not close verification log when a block pool is being deleted (but
the datanode remains running)
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-4768
>                 URL: https://issues.apache.org/jira/browse/HDFS-4768
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 3.0.0, 2.0.4-alpha
>            Reporter: Chris Nauroth
>            Assignee: Chris Nauroth
>         Attachments: HDFS-4768.1.patch
>
>
> HDFS-4274 fixed a file handle leak of the block scanner's verification logs by adding
method {{BlockPoolSliceScanner#shutdown}} and guaranteeing that the method gets called for
each live {{BlockPoolSliceScanner}} during datanode shutdown.  However, that patch did not
consider the case of deleting a block pool via {{ClientDatanodeProtocol#deleteBlockPool}}
while the datanode remains running.

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