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Posted to dev@mrunit.apache.org by "Jim Donofrio (Created) (JIRA)" <ji...@apache.org> on 2012/02/26 07:37:48 UTC
[jira] [Created] (MRUNIT-65) return better error message when
mapper or reducer is null
return better error message when mapper or reducer is null
----------------------------------------------------------
Key: MRUNIT-65
URL: https://issues.apache.org/jira/browse/MRUNIT-65
Project: MRUnit
Issue Type: Improvement
Reporter: Jim Donofrio
Priority: Minor
Currently if you use the default constructor for MapDriver or ReduceDriver you just get a nullpointer exception instead of a more meaningful error stating that you did not specify a mapper or reducer class
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[jira] [Updated] (MRUNIT-65) return better error message when
mapper or reducer is null for MapDriver or ReduceDriver
Posted by "Jim Donofrio (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MRUNIT-65?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jim Donofrio updated MRUNIT-65:
-------------------------------
Summary: return better error message when mapper or reducer is null for MapDriver or ReduceDriver (was: return better error message when mapper or reducer is null)
> return better error message when mapper or reducer is null for MapDriver or ReduceDriver
> ----------------------------------------------------------------------------------------
>
> Key: MRUNIT-65
> URL: https://issues.apache.org/jira/browse/MRUNIT-65
> Project: MRUnit
> Issue Type: Improvement
> Reporter: Jim Donofrio
> Priority: Minor
>
> Currently if you use the default constructor for MapDriver or ReduceDriver you just get a nullpointer exception instead of a more meaningful error stating that you did not specify a mapper or reducer class
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[jira] [Updated] (MRUNIT-65) return better error message when
mapper or reducer is null for MapDriver or ReduceDriver
Posted by "Jim Donofrio (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MRUNIT-65?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jim Donofrio updated MRUNIT-65:
-------------------------------
Attachment: MRUNIT-65-1.patch
add log warning message to MapReduceDriver to notify user that they have added no inputs
add checks in old and new api Map and ReduceDriver to check for null mapper or reducer, throw IllegalStateExcpetion if null with message such as "No Mapper class was provided"
this exception carries over to the MapReduceDriver class in the old and new api and the Pipeline class. The Pipeline class will also catch and rethrow the exception to state which stage there was no mapper or reducer
> return better error message when mapper or reducer is null for MapDriver or ReduceDriver
> ----------------------------------------------------------------------------------------
>
> Key: MRUNIT-65
> URL: https://issues.apache.org/jira/browse/MRUNIT-65
> Project: MRUnit
> Issue Type: Improvement
> Reporter: Jim Donofrio
> Priority: Minor
> Attachments: MRUNIT-65-1.patch
>
>
> Currently if you use the default constructor for MapDriver or ReduceDriver you just get a nullpointer exception instead of a more meaningful error stating that you did not specify a mapper or reducer class
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[jira] [Resolved] (MRUNIT-65) return better error message when
mapper or reducer is null for MapDriver or ReduceDriver
Posted by "Brock Noland (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MRUNIT-65?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brock Noland resolved MRUNIT-65.
--------------------------------
Resolution: Fixed
Fix Version/s: 1.0.0
Assignee: Jim Donofrio
Committed to trunk in 1293865. Thank you for your contribution!
> return better error message when mapper or reducer is null for MapDriver or ReduceDriver
> ----------------------------------------------------------------------------------------
>
> Key: MRUNIT-65
> URL: https://issues.apache.org/jira/browse/MRUNIT-65
> Project: MRUnit
> Issue Type: Improvement
> Reporter: Jim Donofrio
> Assignee: Jim Donofrio
> Priority: Minor
> Fix For: 1.0.0
>
> Attachments: MRUNIT-65-1.patch
>
>
> Currently if you use the default constructor for MapDriver or ReduceDriver you just get a nullpointer exception instead of a more meaningful error stating that you did not specify a mapper or reducer class
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[jira] [Commented] (MRUNIT-65) return better error message when
mapper or reducer is null for MapDriver or ReduceDriver
Posted by "Brock Noland (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MRUNIT-65?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13216646#comment-13216646 ]
Brock Noland commented on MRUNIT-65:
------------------------------------
This is a great jira.
> return better error message when mapper or reducer is null for MapDriver or ReduceDriver
> ----------------------------------------------------------------------------------------
>
> Key: MRUNIT-65
> URL: https://issues.apache.org/jira/browse/MRUNIT-65
> Project: MRUnit
> Issue Type: Improvement
> Reporter: Jim Donofrio
> Priority: Minor
>
> Currently if you use the default constructor for MapDriver or ReduceDriver you just get a nullpointer exception instead of a more meaningful error stating that you did not specify a mapper or reducer class
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