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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