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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12236) LLAP: Prevent metadata queries from thrashing LLAP cache
Date Fri, 23 Oct 2015 00:18:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14970166#comment-14970166
] 

Sergey Shelukhin commented on HIVE-12236:
-----------------------------------------

how do they trash llap cache?

> LLAP: Prevent metadata queries from thrashing LLAP cache
> --------------------------------------------------------
>
>                 Key: HIVE-12236
>                 URL: https://issues.apache.org/jira/browse/HIVE-12236
>             Project: Hive
>          Issue Type: Improvement
>          Components: Physical Optimizer
>    Affects Versions: 1.3.0, 2.0.0
>            Reporter: Gopal V
>            Assignee: Gopal V
>             Fix For: 1.3.0, 2.0.0
>
>         Attachments: HIVE-12236.WIP.patch
>
>
> Currently, metadata queries fired by BI tools tend to thrash LLAP's cache.
> Bypass the cache and process metadata queries directly from HiveServer2



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