org.apache.hadoop.fs.FileUtil.checkDependencies may want to use .equals()
instead of ==
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Key: HADOOP-3591
URL: https://issues.apache.org/jira/browse/HADOOP-3591
Project: Hadoop Core
Issue Type: Bug
Components: fs
Affects Versions: 0.18.0
Reporter: Steve Loughran
Priority: Minor
org.apache.hadoop.fs.FileUtil.checkDependencies checks for source overwriting
dest by first checking for filesystem equality:
if (srcFS == dstFS) {
..more checks here
}
So, its assuming that you can check filesystem by pointer equality, whereas if
you create two filesystems and initialise them, they will still refer to the
same remoteFS.
Consider assuming URI equality ==filesystem equality, and either to do a
FileSystem.equals() that checks that , or do the check in
FileUtil.getDependencies
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