Junping Du created HDFS-3497:
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Summary: Update Balancer for performance optimization with Node
Group- "choose the target and source node on the same node group for balancing
as the first priority
Key: HDFS-3497
URL: https://issues.apache.org/jira/browse/HDFS-3497
Project: Hadoop HDFS
Issue Type: Sub-task
Components: balancer
Affects Versions: 2.0.0-alpha, 1.0.0
Reporter: Junping Du
Assignee: Junping Du
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