TechConcepts

Split Brain Problem :   Split brain is an issue that can occur in distributed systems or computer networks where a group of nodes or servers are unable to communicate with each other properly, resulting in a loss of coordination and potentially inconsistent behavior. 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. The scenario in which a distributed system has two or more active leaders is called split-brain.  In a split brain scenario, the network or communication link between nodes becomes compromised, leading to a division of the cluster into multiple subgroups or partitions. Each subgroup may mistakenly believe that it is the only active and functioning part of the system. This can cause nodes within each subgroup to make independent decisions or perform conflicting actions, leading to data inconsistencies. For example, in a distributed da...