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From "Lei Xu (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4865) Trigger block scans for datanode
Date Thu, 05 Mar 2009 05:01:57 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12679075#action_12679075

Lei Xu commented on HADOOP-4865:

Hi, Raghu Angadi, which synchronized around manualScanList you mean? I change the synchronized
to addManuallyScanBlocks() and addManuallyScanBlocks(), however I think the synchronized around
manualScanList in run() can not be removed. 

> Trigger block scans for datanode
> --------------------------------
>                 Key: HADOOP-4865
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4865
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Brian Bockelman
>         Attachments: manual_block_scan.patch
> Provide a mechanism to trigger block scans in a datanode upon request.  Support interfaces
for commands sent by the namenode and through the HTTP interface.

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