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https://issues.apache.org/jira/browse/HDFS-16816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17731091#comment-17731091
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ASF GitHub Bot commented on HDFS-16816:
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xinglin closed pull request #5071: HDFS-16816 RBF: auto-create user home dir
for trash paths by router
URL: https://github.com/apache/hadoop/pull/5071
> 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
> Priority: Minor
> Labels: pull-request-available
>
> 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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