Lisheng Sun created HDFS-14936:
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Summary: Add getNumOfChildren() for interface InnerNode
Key: HDFS-14936
URL: https://issues.apache.org/jira/browse/HDFS-14936
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Lisheng Sun
current code InnerNode subclass InnerNodeImpl and DFSTopologyNodeImpl both have
getNumOfChildren().
so Add getNumOfChildren() for interface InnerNode and remove unnessary
getNumOfChildren() in DFSTopologyNodeImpl.
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