Database Replication Explained: Synchronous vs Asynchronous vs Semi-Synchronous
Database replication is critical for fault tolerance and performance, but choosing the wrong strategy can cause data loss or kill your application's speed. This video explains synchronous, asynchronous, and semi-synchronous replication with real-world tradeoffs.
TIMESTAMPS
00:00 - Why We Replicate: Survival & Performance
00:31 - Synchronous Replication: Zero Data Loss
01:29 - Asynchronous Replication: Maximum Throughput
02:23 - Semi-Synchronous: The Middle Ground
03:00 - Consensus Algorithms & Quorum (Raft, CockroachDB)
03:23 - Real-World Decision Framework
#database #systemdesign #replication #distributedystems #backend #postgresql #mysql #cockroachdb #dataengineering #sofwareengineering
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