[HADOOP-9502] chmod does not return error exit codes for some exceptions

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.2.0
• Component/s: fs
• Hadoop Flags: Reviewed
• Assignee: Tsz-wo Sze
• Reporter: Ramya Sunil
• Created: 23/Apr/13 23:14
• Updated: 15/May/13 05:15
• Resolved: 24/Apr/13 22:39

Description

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

Similar problems exist for some other exceptions such as SafeModeException.

Issue Links

• is related to: HADOOP-9543 TestFsShellReturnCode may fail in branch-1