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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4736) SnapshotAccessControlException does not return valid exit codes
Date Wed, 24 Apr 2013 21:43:17 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13640994#comment-13640994
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Tsz Wo (Nicholas), SZE commented on HDFS-4736:
----------------------------------------------

I have verified it.  This is a general chmod problem in branch-1.
                
> SnapshotAccessControlException does not return valid exit codes
> ---------------------------------------------------------------
>
>                 Key: HDFS-4736
>                 URL: https://issues.apache.org/jira/browse/HDFS-4736
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Ramya Sunil
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: Snapshot (HDFS-2802)
>
>
> When some dfs operations fail due to SnapshotAccessControlException, valid exit codes
are not returned.
> E.g:
> -bash-4.1$  hadoop dfs -chmod -R 755 /user/foo/hdfs-snapshots/test0/.snapshot/s0
> chmod: changing permissions of 'hdfs://<namenode>:8020/user/foo/hdfs-snapshots/test0/.snapshot/s0':org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotAccessControlException:
Modification on read-only snapshot is disallowed
> -bash-4.1$ echo $?
> 0
> -bash-4.1$  hadoop dfs -chown -R hdfs:users /user/foo/hdfs-snapshots/test0/.snapshot/s0
> chown: changing ownership of 'hdfs://<namenode>:8020/user/foo/hdfs-snapshots/test0/.snapshot/s0':org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotAccessControlException:
Modification on read-only snapshot is disallowed
> -bash-4.1$ echo $?
> 0

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