advancedSystem Design130 of 132

What happens during a split-brain scenario?

Tests whether you know split-brain means two nodes both believe they're the leader/primary after a partition, each accepting writes independently -- and that the fix is quorum-based consensus (requiring a majority to elect a leader) so only one side of the partition can ever have enough votes to act.

Ready to design this system end to end?

Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.

Sign in to generate a response

Next Step

← Back to all System Design (HLD) questions