FAQ
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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postedSep 2, '10 at 11:42p
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