[MAPREDUCE-2006] Gridmix can emit better error messages instead of throwing Exceptions

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Component/s: contrib/gridmix
• Assignee: Unassigned
• Reporter: Ravi Gummadi
• Created: 12/Aug/10 10:51
• Updated: 30/Jul/14 23:26
• Resolved: 30/Jul/14 23:26

Description

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.

Issue Links

• is related to: MAPREDUCE-3829 [Gridmix] Gridmix should give better error message when input-data directory already exists and -generate option is given