Junping Du created HDFS-3942:
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Summary: Backport HDFS-3495: Update balancer policy for Network
Topology with additional 'NodeGroup' layer
Key: HDFS-3942
URL: https://issues.apache.org/jira/browse/HDFS-3942
Project: Hadoop HDFS
Issue Type: New Feature
Components: balancer
Affects Versions: 1.0.0
Reporter: Junping Du
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