Why coordination in a distributed system is so challenging
After getting introduced to Apache ZooKeeper and its role in the design and development of a distributed application, let's drill down deeper into why coordination in a distributed system is a hard problem. Let's take the example of doing configuration management for a distributed application that comprises multiple software components running independently and concurrently, spanning across multiple physical servers. Now, having a master node where the cluster configuration is stored and other worker nodes that download it from this master node and auto configure themselves seems to be a simple and elegant solution. However, this solution suffers from a potential problem of the master ...
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