[jira] [Updated] (OFBIZ-7346) connection pooling not working

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[jira] [Updated] (OFBIZ-7346) connection pooling not working

Nicolas Malin (Jira)

     [ https://issues.apache.org/jira/browse/OFBIZ-7346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacques Le Roux updated OFBIZ-7346:
-----------------------------------
    Fix Version/s:     (was: 13.07.04)

At r1748879 I reverted r1748843.

R13.07 has not been upgraded to commons-dbcp2-2.1.jar so still uses commons-dbcp-1.4.jar which does not contains the setRollbackOnReturn() and setEnableAutoCommitOnReturn() methods. I decided to revert rather than to backport OFBIZ-6156.

> connection pooling not working
> ------------------------------
>
>                 Key: OFBIZ-7346
>                 URL: https://issues.apache.org/jira/browse/OFBIZ-7346
>             Project: OFBiz
>          Issue Type: Bug
>          Components: ALL COMPONENTS
>    Affects Versions: Trunk
>            Reporter: Gareth Carter
>            Assignee: Jacques Le Roux
>            Priority: Critical
>             Fix For: 14.12.01, 15.12.01
>
>         Attachments: DBCPConnectionFactory.patch
>
>
> Connection pooling does not seem to work. Connections are created fine but as the close() method is called (outside of transaction) or the transaction is committed the connections are closed to the db server and not returned to the pool.
> I believe the issue is with org.apache.commons.dbcp2.PoolableConnectionFactory passivateObject method. This will call rollback() when rollbackOnReturn is set to true even if the transaction is committed. This is because any connection wrappers extending org.apache.commons.dbcp2.DelegatingConnection cache autoCommit status. At some point, this cached autoCommit is different from the underlying connection autoCommit. The rollback() method will throw an exception and the connection is destroyed rather than put back to the pool
> Environment this has been tested on:
> ofbiz: rev 1725574 and latest trunk (as of 2016-06-14)
> db: postgresql 9.1
> jdbc driver: postgresql-9.3-1101.jdbc4
> os: linux and windows
> I have asked dev ml for others to check this with other dbs. Jacques has test with postgres but could not see this behaviour



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