[jbossts-issues] [JBoss JIRA] Created: (JBTM-401) Resource Leakage in Transactional Driver

Michael Musgrove (JIRA) jira-events at lists.jboss.org
Fri Aug 29 05:17:39 EDT 2008

Resource Leakage in Transactional Driver

                 Key: JBTM-401
                 URL: https://jira.jboss.org/jira/browse/JBTM-401
             Project: JBoss Transaction Manager
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: JTA Implementation
    Affects Versions: 4.4.CR1
         Environment: Standalone JTA build
            Reporter: Michael Musgrove
            Assignee: Michael Musgrove
             Fix For: 4.4.0.GA

Use the Transactional Driver to get a JDBC connection (this returns a ConnectionImple which wraps the connection to the real resource and enlists/delists it with transactions). After running about 500 transactions the underlying resource throws an error reporting "Too many connections" (I tried this on Derby and MySql XA drivers).
The real connection is implemented by RecoverableXAConnection - when a transaction completes the reference to the real connection is nulled (and therefore not closed) so on the next transaction a new connection is obtained so the resource manager eventually runs out of connections.

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