Raft or not? The Best Solution to Data Consistency in Cloud-native Databases

Why consensus-based replication algorithm is not the silver bullet for achieving data consistency in distributed databases?

Cover image

Understanding replication, consistency, and consensus

Replication

Consistency

Consensus

Consensus in a distributed system.

Consensus-based replication

Raft replication state machine
Structure of Raft replication state machine.

Pros and cons

A log replication strategy for cloud-native and distributed database

1. Replication as a service

The architecture of Socrates.
The Socrates XLog service.

2. Russian doll principle

Rockset architecture
Rockset architecture.

The approach of Milvus the vector database

Milvus architecture
Milvus architecture.

Summary

References

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