[rules-users] Heap and scheduled Activations

[Mark Proctor]

cyberdav at free.fr wrote:
> Hi everyone,
>
> I've wrote that rule:
>
> rule "COMPTEUR"
> duration 10000
> when
> 	$alarme : Alarm ();
> then
> 	$alarme.increment();
> 	update($alarme);
> end
>
> Using JProfile, I've noticed that PropagationContextImpl was constantly growing
> in the heap. Then, I looked the scheduled activations and saw that some
> scheduledExecutionTime was expired. So, I wrote this code to purge the expired
> activations:
>   
This was a bug early on that we fixed, atleast for normal activations, 
hopefully for scheduled ones. Can you try this with 4.0.4, if it 
persists, please open a JIRA for it.
> Activation[] activations = session.getAgenda().getScheduledActivations();
> long now = (new Date()).getTime();
> for(int i=0;i<activations.length;i++){
> 	if( now >
> ((org.drools.common.ScheduledAgendaItem)activations[i]).scheduledExecutionTime()){
> 		activations[i].remove();
> 	}
> }
>
> Now, the heap isn't growing anymore but what are the consequences of doing
> something like that? So far, there are no noticeable regression on my
> application.
>
> Thanks for your help.
> Dav.
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>