[jira] [Resolved] (DBCP-357) Connection validationQuery mechanism should be replaced by new method connection#isValid()

["Mark Thomas (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DBCP-357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Thomas resolved DBCP-357.
------------------------------

    Resolution: Fixed

> Connection validationQuery mechanism should be replaced by new method connection#isValid()
> ------------------------------------------------------------------------------------------
>
>                 Key: DBCP-357
>                 URL: https://issues.apache.org/jira/browse/DBCP-357
>             Project: Commons Dbcp
>          Issue Type: Improvement
>    Affects Versions: 1.4, 1.4.1
>            Reporter: Philippe Mouawad
>              Labels: PERFORMANCE
>             Fix For: 2.0
>
>
> Hello,
> Current method of connection validation relies on validationQuery.
> This method has a rather big performance impact on the DB (CPU, for example 3% with SELECT 1 FROM DUAL even with Oracle 10G FAST DUAL) and make an additional query for each borrow (when testOnBorrow is true).
> Wouldn't it be better to use new JDBC 4 method isValid which relies on Driver check ? (Oracle would for example use its internal method ping)
> Thank you
> Philippe
> http://www.ubik-ingenierie.com



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)