Practice on history size and when to use continue as new

[wenerme]

A workflow use user message as signal, if every message result in a ContinueAsNew will cause too many workflow, but all message in one workflow will cause very large history, so I build the workflow like

for {
  // ...
  if messageCount > 100 {
    return workflow.ContinueAsNew(...)
  }
}

Any suggest on history size practice and when to ContinueAsNew ?

[longquanzheng]

Cadence has warning at 50k events and error at 200k(which would kill the workflow). Though they can be changed by config.

I would say its recommended to continue as new at a few thousands signals if possible

[wenerme]

Thanks, how about add a faq to doc about these limits and suggests ?