[Seaside] Possible for WADispatcherEditor references to be hanging around?

[Avi Bryant]

On Nov 8, 2004, at 3:07 PM, Yar Hwee Boon wrote:

> On Mon, 8 Nov 2004 14:55:18 +0100, Avi Bryant <avi at beta4.com> wrote:
>
>> On Nov 8, 2004, at 2:50 PM, Yar Hwee Boon wrote:
>>
>>> I'm observing that my image seems significantly larger after running 
>>> Seaside for a while. Its a 3.7 Basic image loaded with Seaside and a 
>>> few of my packages which are rather small. I've stopped WAKom and 
>>> did a Smalltalk garbageCollect. The windows XP task manager says its 
>>> using 40MB. I've tried tracing and found that I have 2 instances of 
>>> WADispatcherEditor. I'm rather lost tracing through all the 
>>> references. Does anyone know if it is possible with 
>>> WADispatcherEditor, or how I can track this down? Thanks.
>>
>> Stopping WAKom won't do anything.  Try "WARegistry clearAllHandlers" 
>> and then GC.
>
> Thanks, that did the trick. I noticed that 
> WADispatcherEditor>>clearCaches is a shortcut for this. I'm assuming 
> that this can only be done when it the server is "offline"?

You can do it whenever, it's just that if people happen to be in the 
middle of a session, they'll be unceremoniously booted from it...

> Also, is it possible that if this is not done often, a large amount of 
> memory will be taken up?

That shouldn't be the case, though I suppose it depends what you 
consider a "large amount".  Because of the way session expiry works 
right now, it's possible to have sessions sticking around for quite a 
long time on a seldomly used application, and so if your session does 
something fairly memory intensive (like, say, caching a bunch of object 
data from GOODS), you can easily end up with a 40MB image, as you saw.  
OTOH, during active use, old sessions should be thrown out more 
aggressively, and so the memory usage will stay flat (probably at a 
similar level to what you have in your development image).  I haven't 
heard any reports yet of images ballooning out of control (like, to 200 
or 300MB) even during heavy use.

Avi