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From "Ravi Gummadi (JIRA)" <j...@apache.org>
Subject [jira] Created: (MAPREDUCE-2006) Gridmix can emit better error messages instead of throwing Exceptions
Date Thu, 12 Aug 2010 10:51:17 GMT
Gridmix can emit better error messages instead of throwing Exceptions
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                 Key: MAPREDUCE-2006
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2006
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: contrib/gridmix
            Reporter: Ravi Gummadi


Gridmix throws Exceptions (including those that come from mapreduce jobs) when there are some
issues like
(1) ioPath already exists and -generate option is given
(2) when -generate option is given, ioPath (a) doesn't exist (b) exists but with wrong permissions
(3) gridmix.output.directory path already exists
(4) gridmix.min.file.size is > the size specified as option to -generate
etc.

These can be validated early and provide proper error messages to the user of gridmix.

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