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Posted to issues@hive.apache.org by "Xuefu Zhang (JIRA)" <ji...@apache.org> on 2017/06/01 03:17:04 UTC

[jira] [Assigned] (HIVE-16799) Control the max number of task for a stage in a spark job

     [ https://issues.apache.org/jira/browse/HIVE-16799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xuefu Zhang reassigned HIVE-16799:
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> Control the max number of task for a stage in a spark job
> ---------------------------------------------------------
>
>                 Key: HIVE-16799
>                 URL: https://issues.apache.org/jira/browse/HIVE-16799
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>
> HIVE-16552 gives admin an option to control the maximum number of tasks a Spark job may have. However, this may not be sufficient as this tends to penalize jobs that have many stages while favoring jobs that has fewer stages. Ideally, we should also limit the number of tasks in a stage, which is closer to the maximum number of mappers or reducers in a MR job.



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