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https://issues.apache.org/jira/browse/HDFS-16983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729284#comment-17729284
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ASF GitHub Bot commented on HDFS-16983:
---------------------------------------

ayushtkn merged PR #5561:
URL: https://github.com/apache/hadoop/pull/5561




> Fix concat operation doesn't honor dfs.permissions.enabled
> ----------------------------------------------------------
>
>                 Key: HDFS-16983
>                 URL: https://issues.apache.org/jira/browse/HDFS-16983
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.4.0
>            Reporter: caozhiqiang
>            Assignee: caozhiqiang
>            Priority: Major
>              Labels: pull-request-available
>
> In concat RPC, it will call FSDirConcatOp::verifySrcFiles() to check the 
> source files. In this function, it would make permission check for srcs. 
> Whether do the permission check should be decided by dfs.permissions.enabled 
> configuration. And the 'pc' parameter is always not null.
> So we should change 'if (pc != null)' to 'if (fsd.isPermissionEnabled())'.
> {code:java}
> // permission check for srcs
> if (pc != null) {
>   fsd.checkPathAccess(pc, iip, FsAction.READ); // read the file
>   fsd.checkParentAccess(pc, iip, FsAction.WRITE); // for delete
> } 
> {code}



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