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https://issues.apache.org/jira/browse/HDFS-16983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729286#comment-17729286
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Ayush Saxena commented on HDFS-16983:
-------------------------------------
Committed to trunk.
Thanx Everyone!!!
> 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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