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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1347) Create Pre Task hooks for Hive
Date Tue, 18 May 2010 19:19:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868795#action_12868795
] 

Namit Jain commented on HIVE-1347:
----------------------------------

TaskRunner contains the SessionState which contains the HiveConf, from where the user info
is obtained.
Since TaskRunner is being passed to the interface, you dont need to pass the user info explicitly

> Create Pre Task hooks for Hive
> ------------------------------
>
>                 Key: HIVE-1347
>                 URL: https://issues.apache.org/jira/browse/HIVE-1347
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Ashish Thusoo
>            Assignee: Ashish Thusoo
>         Attachments: HIVE-1347.patch
>
>
> Create pre task hooks for hive which can modify configuration parameters or task plans.
This is very useful for implementing a number of different execution policies such as
> 1. Sending jobs that work on small data sets to a different cluster.
> 2. Sending jobs that work on archived data sets to a different cluster.
> etc.
> More details on the actual interfaces will follow soon.

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