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From "Junping Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5207) In BlockPlacementPolicy, the type of writer in parameters of chooseTarget() should be updated from DatanodeDescriptor to Node
Date Sat, 14 Sep 2013 03:10:04 GMT
Junping Du created HDFS-5207:
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             Summary: 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


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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