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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5207) In BlockPlacementPolicy, the type of writer in parameters of chooseTarget() should be updated from DatanodeDescriptor to Node
Date Mon, 16 Sep 2013 00:06:51 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Junping Du updated HDFS-5207:
-----------------------------

    Status: Patch Available  (was: Open)
    
> In BlockPlacementPolicy, the type of writer in parameters of chooseTarget() should be
updated from DatanodeDescriptor to Node
> -----------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-5207
>                 URL: https://issues.apache.org/jira/browse/HDFS-5207
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Junping Du
>            Assignee: Junping Du
>         Attachments: HDFS-5207-v1.patch
>
>
> We should change chooseTarget(..., DatanodeDescriptor writer, ...) to chooseTarget (...,
node writer, ...) as the only important property of writer is to identify other nodes' location
relationship so more generic one could be better. It also helps to cover cases that client
node is not a Datanode also.

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