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From "Chao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9103) Support backup task for join related optimization [Spark Branch]
Date Sat, 24 Jan 2015 01:57:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290361#comment-14290361
] 

Chao commented on HIVE-9103:
----------------------------

If task doesn't fail, backup task won't be triggered.

> Support backup task for join related optimization [Spark Branch]
> ----------------------------------------------------------------
>
>                 Key: HIVE-9103
>                 URL: https://issues.apache.org/jira/browse/HIVE-9103
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Spark
>            Reporter: Xuefu Zhang
>            Assignee: Chao
>            Priority: Blocker
>
> In MR, backup task can be executed if the original task, which probably contains certain
(join) optimization fails. This JIRA is to track this topic for Spark. We need to determine
if we need this and implement if necessary.
> This is a followup of HIVE-9099.



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