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https://issues.apache.org/jira/browse/HIVE-27657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mayank Kunwar reassigned HIVE-27657:
------------------------------------

    Assignee: Mayank Kunwar

> Change hive.fetch.task.conversion.threshold default value
> ---------------------------------------------------------
>
>                 Key: HIVE-27657
>                 URL: https://issues.apache.org/jira/browse/HIVE-27657
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Mayank Kunwar
>            Assignee: Mayank Kunwar
>            Priority: Major
>
> With the introduction of [fetch task 
> caching|https://github.com/apache/hive/blob/d0a06239b09396d1b7a6414d85011f9a20f8486a/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java#L3532-L3535],
>  HS2 may quickly run out of memory if there are multiple parallel queries 
> with fetch task.
> We should be reducing the default value for 
> hive.fetch.task.conversion.threshold to 209715200 (200M) from current 
> 1073741824 (1G)



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