http://docs.jboss.org/jbossas/jboss4guide/r2/html/ch13.html#ch13.config.table
hibernate.cglib.use_reflection_optimizer=false
Set this in hibernate.properties, as a java system property, or by calling
Configuration#setProperty() directly.
You can postpone the problem a bit using the java command flag
-XX:MaxPermSize.
e.g. from http://www.caucho.com/support/resin-interest/0512/0022.html
Of course we can increase the PermGen size by adding -XX:MaxPermSize to
the command line. Though this only increases N and pushes the problem
further away, but it will always occur eventually.
On 6/5/07, John Mitchell <[EMAIL PROTECTED]> wrote:
Jeff,
Thanks for the info! How do I turn off CGLIB?
Thanks,
John Mitchell
On 6/4/07, Jeoff Wilks < [EMAIL PROTECTED]> wrote:
>
> Every time the CGLIB Enhancer generates a new class, that generated
> class jumps straight to the PermGen (permanent generation) of your java
> heap. CGLIB Enhancers are faster in terms of performance, but more dangerous
> in terms of memory consumption. (I ran into this same problem with another
> product that uses CGLIB.)
>
> Try turning off CGLIB and just have hibernate use reflection. If that
> solves the problem, then you can always work on tuning CGLIB later.
>
>
> On 6/4/07, John Mitchell <[EMAIL PROTECTED]> wrote:
>
> > Hi,
> >
> > I have been having to restart Apache Tomcat as frequently as once a
> > day and I suspect the problem is related to hibernate.
> >
> > I have attached an error log from apache tomcat:
> >
> > I get the following error below
> >
> > ERROR BasicLazyInitializer:105 - CBLIB Enhancement failed:
> > com.insequence.gv.ProductOrder
> >
> > then further down the log file
> >
> > java.lang.OutOfMemoryError: PermGen space
> >
> > I also noticed towards the beginning of the log file
> >
> > 13:26:55,625 INFO DriverManagerConnectionProvider:41 - Using
> > Hibernate built-in connection pool (not for production use!)
> > 13:26:55,640 INFO DriverManagerConnectionProvider:42 - Hibernate
> > connection pool size: 1
> >
> > Do I need to switch to a different connection pool and if so what?
> > Should I change the "Hibernate connection pool size: 1" to a number
> > higher than 1 for better stability and if so what number?
> >
> > Thanks,
> >
> > --
> > John J. Mitchell
> >
> > -------------------------------------------------------------------------
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> >
> >
> >
>
--
John J. Mitchell
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