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Posted to common-issues@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2013/04/24 23:47:17 UTC
[jira] [Updated] (HADOOP-9502) chmod does not return error exit
codes for some exceptions
[ https://issues.apache.org/jira/browse/HADOOP-9502?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo (Nicholas), SZE updated HADOOP-9502:
-------------------------------------------
Description:
When some dfs operations fail due to SnapshotAccessControlException, valid exit codes are not returned.
E.g:
{noformat}
-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 $?
0
{noformat}
Similar problems exist for some other exceptions such as SafeModeException.
was:
When some dfs operations fail due to SnapshotAccessControlException, valid exit codes are not returned.
E.g:
-bash-4.1$ 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 $?
0
> chmod does not return error exit codes for some exceptions
> ----------------------------------------------------------
>
> Key: HADOOP-9502
> URL: https://issues.apache.org/jira/browse/HADOOP-9502
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Reporter: Ramya Sunil
> Assignee: Tsz Wo (Nicholas), SZE
> Priority: Minor
>
> When some dfs operations fail due to SnapshotAccessControlException, valid exit codes are not returned.
> E.g:
> {noformat}
> -bash-4.1$ 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
> {noformat}
> Similar problems exist for some other exceptions such as SafeModeException.
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