Junping Du created HDFS-3941:
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Summary: Backport HDFS-3498 and HDFS3601: update replica placement
policy for new added "NodeGroup" layer topology
Key: HDFS-3941
URL: https://issues.apache.org/jira/browse/HDFS-3941
Project: Hadoop HDFS
Issue Type: New Feature
Components: name-node
Affects Versions: 1.0.0
Reporter: Junping Du
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