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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-16151) BytesBytesHashTable allocates large arrays
Date Thu, 09 Mar 2017 00:23:37 GMT

     [ https://issues.apache.org/jira/browse/HIVE-16151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Shelukhin reassigned HIVE-16151:
---------------------------------------


> BytesBytesHashTable allocates large arrays
> ------------------------------------------
>
>                 Key: HIVE-16151
>                 URL: https://issues.apache.org/jira/browse/HIVE-16151
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Prasanth Jayachandran
>            Assignee: Sergey Shelukhin
>
> These arrays cause GC pressure and also impose key count limitations on the table. Wrt
the latter, we won't be able to get rid of it without a 64-bit hash function, but for now
we can get rid of the former.



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