[ https://issues.apache.org/jira/browse/DBCP-427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14984581#comment-14984581 ]
Gary Gregory commented on DBCP-427: ----------------------------------- Seems OK to change with a caveat: It might be the case that some drivers use incorrect SQL codes, or use no SQL codes. I would want to have per driver SQL code list. We could also have a general SQL code list. > Examines 'SQLException's thrown by underlying connections or statements for > fatal (disconnection) errors > -------------------------------------------------------------------------------------------------------- > > Key: DBCP-427 > URL: https://issues.apache.org/jira/browse/DBCP-427 > Project: Commons Dbcp > Issue Type: Improvement > Affects Versions: 2.0 > Reporter: Vladimir Konkov > Priority: Minor > Fix For: 2.2 > > Attachments: DBCP-427_initial_impl.diff > > > Affected cases: > 1. Ability to detect severed connection without need for validity check (it > can be time demand). > 2. Not all fatal errors detected with simple validation query or isValid() > call. For example: > Broken XA connections of MS SQL Server and Oracle Database (and may be other) > pass validation for both isValid() and simple validation query such as 'SELEC > 1 FROM DUAL' but throw fatal errors on data and/or transaction manipulation > calls. Such errors gone only after reconnect. In case of use DBCP for polling > application has no chance to cleanup broken connection. > By providing infractructure for check thrown exceptions and mark > PoolableConnection as poisoned we can cleanup pool on validation phase. -- This message was sent by Atlassian JIRA (v6.3.4#6332)