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From "Siddharth Seth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10113) LLAP: reducers running in LLAP starve out map retries
Date Fri, 27 Mar 2015 17:57:56 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14384247#comment-14384247
] 

Siddharth Seth commented on HIVE-10113:
---------------------------------------

Related: https://issues.apache.org/jira/browse/HIVE-10029

This is expected at the moment. Until we support pre-empting tasks / removal of tasks from
queues.

> LLAP: reducers running in LLAP starve out map retries
> -----------------------------------------------------
>
>                 Key: HIVE-10113
>                 URL: https://issues.apache.org/jira/browse/HIVE-10113
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Sergey Shelukhin
>            Assignee: Gunther Hagleitner
>
> When query 17 is run, some mappers from Map 1 currently fail (due to unwrap issue, and
also due to  HIVE-10112).
> This query has 1000+ reducers; if they are ran in llap, they all queue up, and the query
locks up.
> If only mappers run in LLAP, query completes.



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