[jira] [Created] (HDFS-16816) RBF: auto-create user home dir for trash paths by router

["Xing Lin (Jira)" <ji...@apache.org>]

Xing Lin created HDFS-16816:
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             Summary: RBF: auto-create user home dir for trash paths by router
                 Key: HDFS-16816
                 URL: https://issues.apache.org/jira/browse/HDFS-16816
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: rbf
            Reporter: Xing Lin


In RBF, trash files are moved to trash root under user's home dir at the corresponding namespace/namenode where the files reside. This was added in HDFS-16024. When the user home dir is not created before-hand at a namenode, we run into permission denied exceptions when trying to create the parent dir for the trash file before moving the file into it. We propose to enhance Router, to auto-create a user home's dir at the namenode for trash paths, using router's identity (which is assumed to be a super-user).



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