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https://issues.apache.org/jira/browse/HDFS-10488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15353717#comment-15353717
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Andrew Wang commented on HDFS-10488:
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The current 005 patch looks okay for branch-2, but since we just committed
HDFS-6434, does this patch need to be updated for trunk? It mentions a file
having default 755 permissions, but HDFS-6434 makes the default 644. The other
note is that there's a "Permission" section in this doc that mentions 755 as
the default for both files and dirs, this should also be updated.
Would also appreciate if you could update the JIRA summary to reflect the
contents of the patch. Thanks Wellington.
> WebHDFS CREATE and MKDIRS does not follow same rules as DFS CLI when creating
> files/directories without specifying permissions
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10488
> URL: https://issues.apache.org/jira/browse/HDFS-10488
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation, webhdfs
> Affects Versions: 2.6.0
> Reporter: Wellington Chevreuil
> Assignee: Wellington Chevreuil
> Priority: Minor
> Attachments: HDFS-10488.002.patch, HDFS-10488.003.patch,
> HDFS-10488.005.patch, HDFS-10488.patch
>
>
> WebHDFS methods for creating file/directories are always creating it with 755
> permissions as default, even ignoring any configured
> *fs.permissions.umask-mode* in the case of directories.
> Dfs CLI, however, applies the configured umask to 777 permission for
> directories, or 666 permission for files.
> Example below shows the different behaviour when creating directory via CLI
> and WebHDFS:
> {noformat}
> 1) Creating a directory under '/test/' as 'test-user'. Configured
> fs.permissions.umask-mode is 000:
> $ sudo -u test-user hdfs dfs -mkdir /test/test-user1
> $ sudo -u test-user hdfs dfs -getfacl /test/test-user1
> # file: /test/test-user1
> # owner: test-user
> # group: supergroup
> user::rwx
> group::rwx
> other::rwx
> 4) Doing the same via WebHDFS does not get the proper ACLs:
> $ curl -i -X PUT
> "http://namenode-host:50070/webhdfs/v1/test/test-user2?user.name=test-user&op=MKDIRS";
>
> $ sudo -u test-user hdfs dfs -getfacl /test/test-user2
> # file: /test/test-user2
> # owner: test-user
> # group: supergroup
> user::rwx
> group::r-x
> other::r-x
> {noformat}
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