Database Replication

Why databases replicate data, and the reliability and latency trade-offs of copying writes across nodes.

6 min read

Single-leader replication: how followers catch up, failover, and read-after-write issues.

8 min read

Multi-leader setups for multi-datacenter writes, and the conflict patterns they introduce.

8 min read

Leaderless replication with quorums, hinted handoff, and read repair.

8 min read

Synchronous, asynchronous, and semi-synchronous commit — durability versus write latency.

7 min read

How replica sets elect a new leader after failure, and what happens to in-flight writes.

8 min read

Detecting and resolving write conflicts in multi-leader replication, including last-write-wins and merge strategies.

8 min read