Tencent/phxsql

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2446 stars · 545 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

PhxSQL is a high-availability, strongly consistent MySQL cluster built on Paxos and Percona, developed by Tencent. It replaces semi-sync replication with Paxos-based binlog synchronization to guarantee zero-loss replication and automatic failover without external dependencies like ZooKeeper or etcd.

Use cases

• run a highly available MySQL cluster with automatic failover
• guarantee zero data loss between MySQL master and slaves
• deploy a MySQL cluster without ZooKeeper or etcd
• achieve ZooKeeper-strength linearizable consistency for MySQL data
• hot-reconfigure cluster membership without downtime
• keep a MySQL cluster working as long as a majority of nodes are up

When to choose

• you need strong consistency and zero-loss replication for MySQL
• you want automatic failover with no external coordination service
• you need MySQL client compatibility up to serializable isolation
• you prefer a self-contained cluster with few components

When to avoid

• you need a actively maintained solution - the last release was in 2018
• you use MySQL 8.x or non-Percona MySQL versions
• you prefer managed cloud databases or MySQL Group Replication/InnoDB Cluster
• your workload is read-heavy and async replication is acceptable

Facets

service · maturity maintenance

database caching rpc databases microservices self-hosted cpp self-hosted mysql-cluster paxos high-availability strong-consistency percona replication automatic-failover linux

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