Deadlock question

[jimknopf]

Hello.

I want to use JBPM as a Workflow-Engine for a Hospital to suport the doctors.
When it is ready, there are circa 30.000 - 80.000 Workflow-instances running.
My Question is, JBPM is singel Thread what happend, if i get a deadlock in an action? I already tested it an if I am rigth if i say, that the hole Engine is frozen?
And if i don't know in which instance the deadlock is, is it possiple for me to find the wrong instance and stop it?.


Thanks for the Answers.

[kukeltje]

correct, jbpm is single threaded. For complex actionswe advise to use the async functionality, so the processing is done outside the engine and a callback is used to trigger it again. Thatway the chances on deadlocks are a lot less.

Never the less, it might be worth looking into writing a text/chapter for this in the docs. Or even looking into reducing the risk