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Posted to dev@hive.apache.org by "Ramkumar Vadali (JIRA)" <ji...@apache.org> on 2010/12/10 02:23:02 UTC
[jira] Updated: (HIVE-1846) change hive assumption that local mode
mappers/reducers always run in same jvm
[ https://issues.apache.org/jira/browse/HIVE-1846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ramkumar Vadali updated HIVE-1846:
----------------------------------
Attachment: HIVE-1846.patch
> change hive assumption that local mode mappers/reducers always run in same jvm
> -------------------------------------------------------------------------------
>
> 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
> Attachments: HIVE-1846.patch
>
>
> 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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