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From "Xiaobing Zhou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9741) Refactor MetaStoreDirectSql by using getProductName instead of querying DB to determine DbType
Date Sat, 21 Feb 2015 01:10:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14329884#comment-14329884
] 

Xiaobing Zhou commented on HIVE-9741:
-------------------------------------

Thanks [~ashutoshc], will do that in upcoming patch.

> Refactor MetaStoreDirectSql by using getProductName instead of querying DB to determine
DbType
> ----------------------------------------------------------------------------------------------
>
>                 Key: HIVE-9741
>                 URL: https://issues.apache.org/jira/browse/HIVE-9741
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 1.0.0
>            Reporter: Xiaobing Zhou
>            Assignee: Xiaobing Zhou
>         Attachments: HIVE-9741.1.patch, HIVE-9741.2.patch
>
>
> MetaStoreDirectSql constructor is querying DB to determine dbType. which leads to too
many DB queries to make metastore slow or hanging if MetaStoreDirectSql constructor is frequently
called. This is to propose getProductName to get dbType info. 



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