Category
replication
2 articles across 2 sub-topics
Anomalies(1)
Data Anomalies in Distributed Systems: Split Brain, Clock Skew, Stale Reads, and More
TLDR: Distributed systems produce anomalies not because the code is buggy — but because physics makes it impossible to be perfectly consistent, available, and partition-tolerant simultaneously. Split brain, stale reads, clock skew, causality violatio...
•34 min read
Databases(1)
System Design Replication and Failover: Keep Services Alive When a Primary Dies
TLDR: Replication means keeping multiple copies of your data so the system can survive machine, process, or availability-zone failures. Failover is the coordinated act of promoting a healthy replica, rerouting traffic, and recovering without corrupti...
•13 min read