FileStatus should have the visible length of the file
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Key: HDFS-879
URL: https://issues.apache.org/jira/browse/HDFS-879
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: Zheng Shao
Assignee: Zheng Shao
Currently, {{FileStatus}} returned by {{DistributedFileSystem.listStatus()}}
(which goes through {{DFSClient.listPath()}} then {{NameNode.getListing()}})
does not have the latest file length, if the file is still open for write.
We should make changes in {{DFSClient.listPath()}} to override the length of
the file, if the file is under construction.
This depends on adding a {{isUnderConstruction}} field in {{FileStatus}}.
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