Whats the http request default timeout in http-connector

whats the default timeout value in http-connector ? And How to change it?

This question is already answered. Refer the following thread.

Set timeout for http-connector service task.

http connector by default no timeout is set. But you can build custom connector and set the required timeout settings.

Hope this helps .

I see, whats the maximum threads count that can be active in camunda?

This can be tuned based on your requirements. Go through this link to get to understand performance tuning.