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Posted to dev@hive.apache.org by "Xiaobing Zhou (JIRA)" <ji...@apache.org> on 2015/02/20 19:06:15 UTC

[jira] [Updated] (HIVE-9741) Refactor MetaStoreDirectSql by using getProductName instead of querying DB to determine DbType

     [ https://issues.apache.org/jira/browse/HIVE-9741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiaobing Zhou updated HIVE-9741:
--------------------------------
    Attachment: HIVE-9741.1.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
>
>
> 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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