topic Re: Out of memory issues when doing lots of variable get/set in Alfresco Archive

Out of memory issues when doing lots of variable get/set

krdevos — Tue, 28 Aug 2012 14:40:14 GMT

Hi,I'm using activiti in a prodcution environment to handle a simple sort of approval flow. I put a serializable object to the processinstance to pass through the different steps. There is also a possibility to update the variable without changing task.However when I try to do a lot of get variables

Re: Out of memory issues when doing lots of variable get/set

trademak — Wed, 29 Aug 2012 09:51:09 GMT

Hi,

A serialized object of a couple of MBs is not really a normal way of using process variables.
Is it not possible to store a reference to the serialized object in the process instance and store the object itself somewhere else?

Best regards,

Re: Out of memory issues when doing lots of variable get/set

krdevos — Wed, 29 Aug 2012 11:33:40 GMT

Tijs,

THX for the reply. And I must admit your response is a valid one, however changing this current architecture would take some serious refactoring time and money.

Do you mean that the architecture of activiti is not setup to handle a large serialized block of data as process variable?

thx

Kristof

Re: Out of memory issues when doing lots of variable get/set

trademak — Wed, 29 Aug 2012 15:17:26 GMT

Hi,

Well, it's certainly not the best practice on how to use process variables.
Do you do these getVariable calls within the same transaction? So does it only contain synchronous service tasks etc?
Then all the variables may still be in memory.
How much MB are we talking about in total? Can't you increase the memory settings?
If you do the getVariable calls in the same transaction then switching to asynchronous tasks could be a solution.

Best regards,