Re: [Hibernate] java.lang.OutOfMemoryError: PermGen space

[John M. <mit...@gm...>]

Jeff,

Thanks for the info!  How do I turn off CGLIB?

Thanks,

John Mitchell

On 6/4/07, Jeoff Wilks <jeo...@gm...> 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 <mit...@gm...> 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