Brandon Li created HDFS-5043:
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Summary: For HdfsFileStatus, set default value of childrenNum to
-1 instead of 0 to avoid confusing applications
Key: HDFS-5043
URL: https://issues.apache.org/jira/browse/HDFS-5043
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Brandon Li
Assignee: Brandon Li
Per discussion in HDFS-4772, default value 0 can confuse application since it
doesn't know the server doesn't support childNum or the directory has no child.
Use -1 instead to avoid this confusion.
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