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From "Szehon Ho (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7575) GetTables thrift call is very slow
Date Tue, 27 Oct 2015 05:27:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14975756#comment-14975756
] 

Szehon Ho commented on HIVE-7575:
---------------------------------

Patch seems to help a lot!  I think it helps for when many tables case too, I dont know about
the case of many database.

One small question, why can't table_types be a list instead of a large string in metastoreClient.getTableMetas()
method?  The other MetastoreClient api's have arguments in list form, so it will be cleaner.
 Is it for performance reasons?


> GetTables thrift call is very slow
> ----------------------------------
>
>                 Key: HIVE-7575
>                 URL: https://issues.apache.org/jira/browse/HIVE-7575
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>    Affects Versions: 0.12.0, 0.13.0
>            Reporter: Ashu Pachauri
>            Assignee: Navis
>         Attachments: HIVE-7575.1.patch.txt, HIVE-7575.2.patch.txt, HIVE-7575.3.patch.txt
>
>
> The GetTables thrift call takes a long time when the number of table is large.
> With around 5000 tables, the call takes around 80 seconds compared to a "Show Tables"
query on the same HiveServer2 instance which takes 3-7 seconds.



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