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From "Joydeep Sen Sarma (JIRA)" <j...@apache.org>
Subject [jira] Created: (HIVE-1846) change hive assumption that local mode mappers/reducers always run in same jvm
Date Thu, 09 Dec 2010 22:51:03 GMT
change hive assumption that local mode mappers/reducers always run in same jvm 
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                 Key: HIVE-1846
                 URL: https://issues.apache.org/jira/browse/HIVE-1846
             Project: Hive
          Issue Type: Bug
            Reporter: Joydeep Sen Sarma
            Assignee: Joydeep Sen Sarma


we are trying out a version of hadoop local mode that runs multiple mappers/reducers by spawning
jvm's for them. In this mode hive mappers fail in reading the plan file. it seems that we
assume (in the setMapredWork call) that local mode mappers/reducers will run in the same jvm
(we can cache the current plan in a global var and don't serialize to a path). this needs
to get fixed.

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