Overview

I am sure that most of us may have used some kind of locking during development, or may have faced issues of incorrect results in some states that are difficult to reproduce. Things are not that complex when we need to manage them within the process or even multiple processes, but on the same machine. It is also very common these days that most of us are involved in making cloud-native applications/services, where there are multiple instances of the service[s], either due to high availability/load balancing.  

In case of multiple instances of service[s], things become trickier when you face a situation where you need to make sure that certain operations must be performed in a synchronized manner, and it’s not about multiple threads/processes but multiple pods/nodes in a native environment.