Microservices are SOA and there are two ways in which that typically happens: slow offline processing with many different workers. That's not really an issue an

Microservices are SOA and there are two ways in which that typically happens: slow offline processing with many different workers. That's not really an issue and something that is a well understood problem. The second however is offloading work to different processes while something is waiting for a result and it wants it quick (a web request). In the latter case it's absolutely important that your services reply quickly.