Grokking the Advanced System Design Interview
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12. Split Brain

Let's learn about split-brain and how to handle it.


In a distributed environment with a central (or leader) server, if the central server dies, the system must quickly find a substitute, otherwise, the system can quickly deteriorate.

One of the problems is that we cannot truly know if the leader has stopped for good or has experienced an intermittent failure like a [stop-the-world GC pause](## "During Garbage Collection (GC), a program attempts to reclaim memory occupied by objects that are no longer in use




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