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From Wojciech Langiewicz <>
Subject Hive 0.7 using only one mapper
Date Thu, 28 Jul 2011 13:23:08 GMT
I'm having isssue running Hive jobs after updating from Hive 0.5 to Hive 
0.7 (from CDHb4 to CDHu1).

No matter what query I'm running Hive is always using one mapper.
I have tried different queries with various sizes of input and ones with 
many reducers or no reducers.

For version 0.5 everything worked correctly.
I'm attaching my hive-site.xml:
I have tested also jobs with Pig, and those jobs use multiple mappers - 
so I guess this is a Hive issue.

Thank you for all your help.

Wojciech Langiewicz

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