Replication strategies
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
compare leader-based, multi-leader, and leaderless replication by how they fail.
Planned topics
- Leader-based: one writer, followers copy; failover can lose recent writes if replication is asynchronous.
- Multi-leader: several writers across regions; fast local writes but conflicts must be resolved.
- Leaderless: any replica accepts writes; quorums and repair keep copies close.
- Synchronous replication costs latency; asynchronous costs durability on failure.
Draft outline details
Demonstration
a table with three columns (leader-based, multi-leader, leaderless) and rows: write path, conflict handling, failover behavior, typical systems. Verify product examples before recording.
Check your understanding
What can be lost in async leader failover?
Show answer
Recent writes not yet copied to the promoted follower.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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