Yuanbo Liu created HDFS-10883:

             Summary: `getTrashRoot`'s behavior is not consistent in DFS after 
enabling EZ.
                 Key: HDFS-10883
                 URL: https://issues.apache.org/jira/browse/HDFS-10883
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Yuanbo Liu
            Assignee: Yuanbo Liu

Let's say root path ("/") is the encryption zone, and there is a file called 
"/test" in root path.
dfs.getTrashRoot(new Path("/"))
returns "/user/$USER/.Trash",
dfs.getTrashRoot(new Path("/test"))
returns "/.Trash/$USER".
The second behavior is not correct. Since root path is the encryption zone,  
which means all files/directories in DFS are encrypted, it's more reasonable   
to return  "/user/$USER/.Trash" no matter what the path is. 

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