Distributed Systems — Replication

This is the second story on the topic of DS, if you haven't read the first one, please have a look here.

Replication is at the core of Distributed Systems (DS). We all know what replication is? In its simplest form, is just having a duplicate copy of the original in a case where the original copy is destroyed, we can use the backup one. But in DS replication is not that simple, in fact, it’s much more complicated and it needs to work in order for DS to ‘work’. In a system where storage for example is not distributed, even if the master server fails, we can assume that the…