Worse performance with Flowable 6.8.1 compared to 6.8.0

1

Hello Flowable colleagues,

After adopting version 6.8.1 of flowable I have noticed a performance degradation of about 20% of our service. Any recommendation on how to speed up Flowable?

Our system parameters are:

  • 5 flowable engines (5 cloud foundry instances)
  • 4GB ram and 4GB disk
  • PostgreSQL DB with 16GB of RAM and 1000GB storage with 4 CPUs

Our flowable processes contain a large number of Service tasks and parallel sub-processes.
Example diagram: https://github.com/cloudfoundry/multiapps-controller/blob/master/multiapps-controller-process/src/main/resources/org/cloudfoundry/multiapps/controller/process/deploy-app.bpmn

Full flowable configuration: https://github.com/cloudfoundry/multiapps-controller/blob/master/multiapps-controller-web/src/main/java/org/cloudfoundry/multiapps/controller/web/configuration/FlowableConfiguration.java#L77

Best regards,
Yavor

2

Hey @Yavor,

From what I can see you have a lot of async non-exclusive jobs. Are you by any chance seeing optimistic lock exceptions?

Do you know in which area is the performance degradation happening?

Cheers,
Filip

3

Hello, @filiphr,

we don’t have any optimistic lock exceptions and also we don’t know where the degradation comes from.

Best regards,
Yavor

4

Do you have some metrics that you can share with us perhaps? You can share them privately as well.

Would be good if you have some metrics / logs prior the upgrade and after the upgrade so that we can see some comparison and perhaps help us locate the area where the performance degradation is happening.

Cheers,
Filip

5

I don’t have metrics that can help you with identifing the problem. In the past we have also opened another Worse performance with Flowable 6.8.0 compared to 6.6.0 (Global acuqire lock feature). I don’t know if that will helps you