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Date: Thu, 17 Feb 2011 02:50:24 +0000 (UTC)
From: "Tsz Wo (Nicholas), SZE (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] Updated: (HDFS-1629) Add a method to BlockPlacementPolicy
 for not removing the chosen nodes
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     [ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE updated HDFS-1629:
-----------------------------------------

    Component/s:     (was: hdfs client)
                     (was: data-node)
                 name-node

> Add a method to BlockPlacementPolicy for not removing the chosen nodes
> ----------------------------------------------------------------------
>
>                 Key: HDFS-1629
>                 URL: https://issues.apache.org/jira/browse/HDFS-1629
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h1629_20110216.patch, h1629_20110217.patch
>
>
> {{BlockPlacementPolicy}} supports chosen nodes in some of the {{chooseTarget(..)}} methods.  The chosen nodes will be removed from the output array.  For adding new datanodes to an existing pipeline, it is useful to keep the chosen nodes in the output array.

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