[ http://issues.apache.org/jira/browse/HADOOP-488?page=all ]
Andrzej Bialecki resolved HADOOP-488.
--------------------------------------
Resolution: Fixed
Patch applied.
> Change ToolBase.doMain() to return a status code
> ------------------------------------------------
>
> Key: HADOOP-488
> URL: http://issues.apache.org/jira/browse/HADOOP-488
> Project: Hadoop
> Issue Type: Improvement
> Affects Versions: 0.6.0
> Reporter: Andrzej Bialecki
> Fix For: 0.6.0
>
> Attachments: patch.txt
>
>
> I propose to change the signature of ToolBase.doMain from this:
> public final void doMain(Configuration conf, String[] args) throws
> Exception;
> to this:
> public final int doMain(Configuration conf, String[] args) throws
> Exception;
> and then change main() methods of all classes that use ToolBase.doMain to
> call System.exit(code), where "code" is this return value from doMain(). All
> command-line tools, which still call main() methods of other tools, should be
> converted to use doMain() and return exit codes properly.
> The main reason for this change is that returning varying exit codes is
> required for proper operation of shell scripts, especially differing between
> code == 0 (normal exit) and code != 0 (error exit).
> Additionally, current implementation of doMain() already gets the return
> code, it just silently discards it (ToolBase.java:184).
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
