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Posted to dev@hive.apache.org by "Bennie Schut (JIRA)" <ji...@apache.org> on 2010/07/23 10:40:52 UTC

[jira] Commented: (HIVE-1482) Not all jdbc calls are threadsafe.

    [ https://issues.apache.org/jira/browse/HIVE-1482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12891522#action_12891522 ] 

Bennie Schut commented on HIVE-1482:
------------------------------------

On HiveConnection we reuse the "client" on many calls but we've already seen the "DatabaseMetaData getMetaData()" call being used in a multithreaded way.

> Not all jdbc calls are threadsafe.
> ----------------------------------
>
>                 Key: HIVE-1482
>                 URL: https://issues.apache.org/jira/browse/HIVE-1482
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Drivers
>    Affects Versions: 0.7.0
>            Reporter: Bennie Schut
>             Fix For: 0.7.0
>
>
> As per jdbc spec they should be threadsafe:
> http://download.oracle.com/docs/cd/E17476_01/javase/1.3/docs/guide/jdbc/spec/jdbc-spec.frame9.html

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