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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1370) NameNode should limit the number of blocks to return when balancer asks for a partial blocks map
Date Thu, 02 Sep 2010 23:41:32 GMT
NameNode should limit the number of blocks to return when balancer asks for a partial blocks
map
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                 Key: HDFS-1370
                 URL: https://issues.apache.org/jira/browse/HDFS-1370
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
    Affects Versions: 0.22.0
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.22.0


This has a couple of advantages:
1. limit the response size;
2. limit the amount of time when serving getBlocks call, hence improving NN's responsiveness.

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