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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-11452) Revisit org.apache.hadoop.fs.FileSystem#rename
Date Tue, 30 Dec 2014 03:09:13 GMT
Yi Liu created HADOOP-11452:

             Summary: Revisit org.apache.hadoop.fs.FileSystem#rename
                 Key: HADOOP-11452
                 URL: https://issues.apache.org/jira/browse/HADOOP-11452
             Project: Hadoop Common
          Issue Type: Task
          Components: fs
            Reporter: Yi Liu
            Assignee: Yi Liu

Currently in {{FileSystem}}, {{rename}} with _Rename options_ is protected and with _deprecated_
annotation. And the default implementation is not atomic.

So this method is not able to be used outside. On the other hand, HDFS has a good and atomic
implementation. (Also an interesting thing in {{DFSClient}}, the _deprecated_ annotations
for these two methods are opposite).

It makes sense to make public for {{rename}} with _Rename options_, since it's atomic for
rename+overwrite, also it saves RPC calls if user desires rename+overwrite.

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