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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1629) Add a method to BlockPlacementPolicy for not removing the chosen nodes
Date Wed, 16 Feb 2011 18:37:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12995445#comment-12995445
] 

dhruba borthakur commented on HDFS-1629:
----------------------------------------

+1, looks fine to me.

> 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: data-node, hdfs client
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h1629_20110216.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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