Related to the linked issue about "Apicast's requests to backend listeners are distributed unevenly", THREESCALE-11321, we need to learn about the connection management of the backend listener.

For Async mode using Falcon/Sinatra

For Sync mode using Puma / Sinatra.

The request is to check backend listener behavior and configuration of:

• Max number of connections per worker
• Connection Idle timeout and other timeouts related to connections.
• LOG LEVEL. Can we get more verbose logger? Backend listener does not have that capability, but Puma/Falcon may.