Hands-On Microservices with Kubernetes

Microservices versus serverless functions

One of the biggest questions regarding the future of microservices is whether serverless functions are going to make microservices obsolete. The answer is absolutely not. There are are many great benefits to serverless functions, as well as some serious limitations, such as cold start and time limits. Those limitations accumulate when you have functions invoking other functions. The execution time limits for function are very problematic if you want to apply retry logic with exponential backoff. A long-running service can keep local state and connections to data stores, and respond quicker to requests. But, for me, the biggest issue with serverless functions is that they represent a single function, ...