groupby x out of memory

[Fernando Simonetti <fe...@cosipa.com.br>]

Eventually my aplication server is going down by "Out of Memory". Analizing
de heap dumping, it's point for the same class allocating 600 Mb.

This event can occur 3 hours or 3 days after I restart my server. This class
is used thounsands times in the period. Monitoring the memory of the server,
I could see 300MB to 700MB of memory been allocated in  3 minutes. It hapens
eventualy but not in a determined period.

The unique diference for this class for others, is the groupby clause in
Ibatis. First I thouth it could be a cartesian product, but I ran the query
without parameters and found nothing.

I going to implement this class without groupby clause, but first I would
like to see if there are other options.


thanks,
Fernando

Re: groupby x out of memory

[Clinton Begin <cl...@gmail.com>]

Try disabling "enhancement" as well.  It might be CGLIB.

Clinton

On Tue, Apr 8, 2008 at 6:51 AM, Fernando Simonetti <fe...@cosipa.com.br>
wrote:

> Eventually my aplication server is going down by "Out of Memory".
> Analizing
> de heap dumping, it's point for the same class allocating 600 Mb.
>
> This event can occur 3 hours or 3 days after I restart my server. This
> class
> is used thounsands times in the period. Monitoring the memory of the
> server,
> I could see 300MB to 700MB of memory been allocated in  3 minutes. It
> hapens
> eventualy but not in a determined period.
>
> The unique diference for this class for others, is the groupby clause in
> Ibatis. First I thouth it could be a cartesian product, but I ran the
> query
> without parameters and found nothing.
>
> I going to implement this class without groupby clause, but first I would
> like to see if there are other options.
>
>
> thanks,
> Fernando
>
>
>