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From "Chao (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-8436) Modify SparkWork to split works with multiple child works [Spark Branch]
Date Mon, 13 Oct 2014 16:52:35 GMT

     [ https://issues.apache.org/jira/browse/HIVE-8436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chao reassigned HIVE-8436:
--------------------------

    Assignee: Chao

> Modify SparkWork to split works with multiple child works [Spark Branch]
> ------------------------------------------------------------------------
>
>                 Key: HIVE-8436
>                 URL: https://issues.apache.org/jira/browse/HIVE-8436
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Chao
>
> Based on the design doc, we need to split the operator tree of a work in SparkWork if
the work is connected to multiple child works. The way splitting the operator tree is performed
by cloning the original work and removing unwanted branches in the operator tree. Please refer
to the design doc for details.
> This process should be done right before we generate SparkPlan. We should have a utility
method that takes the orignal SparkWork and return a modified SparkWork.
> This process should also keep the information about the original work and its clones.
Such information will be needed during SparkPlan generation (HIVE-8437).



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