Hi All,
I have a flow which contains few external REST calls, in few different 
operators.

As I read in documentation, using AsyncFunction is the recommended way to 
execute these calls.

Few questions regarding that:
1. Can someone explain better the 'capacity' parameter? How it affects 
latency/througput? Is there any recommendation or advise about how to calculate 
it?
2. What exactly is saved in job state? External requests that are not completed 
yet? And then in case of failure, application will execute it again?
3. Every logic that has some external call should be implemented in 
AsyncFunction? Or is there any other way/recommendation?

Thanks a lot,
Roey.

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