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https://issues.apache.org/jira/browse/DBCP-249?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13903246#comment-13903246
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Mark Thomas commented on DBCP-249:
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I can see the use case for testOnCreate. Support for this will need to be added
to Commons Pool. It will only have an effect if testOnBorrow is false, since
testOnBorrow triggers a validation test on create already.
> Validate connection only on create.
> -----------------------------------
>
> Key: DBCP-249
> URL: https://issues.apache.org/jira/browse/DBCP-249
> Project: Commons Dbcp
> Issue Type: New Feature
> Affects Versions: 1.2.2
> Environment: All.
> Reporter: Parag Mehta
> Fix For: 2.0
>
>
> Request to add support for testOnCreate, to validate connections only when
> they are created, much less frequent than on borrow.
> This will solve issues where for example driver logs you into master instead
> of db on the connection string because db is not available (e.g. Sybase) and
> then rest of the queries fail. This only happens on first login. Hence
> validating the correct db using sql can test such a case so that borrowers
> are guaranteed correct db without having to testOnBorrow every time.
> May also be worthwhile to support different validation queries for testing at
> different times.
> Thanks.
> Parag
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