Mycat2

At a glance

• Editor score
  7.1 / 10
• Pricing
  Open source
• Best for
  MySQL-compatible distributed SQL routing
• Paid from
  Free
• Deployment model
  Self-hosted
• Facts checked
  20 Sep 2026

• Where it wins

  • Distributed SQL processing with sharding and fragmentation
  • Custom query optimization, routing, and load-balancing algorithms
  • Java and JDBC connectivity with result-set caching

• Where it doesn't

  • Requires self-hosted deployment as a Java application
  • The repository's latest listed release is v1.22 from June 25, 2022
  • Database compatibility centers on MySQL and JDBC

Our verdict on Mycat2

Mycat2 is open-source distributed database middleware for teams running distributed relational workloads around MySQL-compatible systems. It operates as a self-hosted Java application, using MySQL protocol and syntax compatibility while connecting to backends through JDBC and the Java ecosystem. Its focus is database proxying and middleware control: distributed SQL query processing, data sharding, SQL forwarding, connection scheduling, and backend coordination are central to its design. Teams evaluating MySQL-compatible distributed SQL routing will find a broader feature set than a basic connection proxy.

The technical depth is concentrated in query distribution and workload management. Mycat2 includes rule- and cost-based query optimization, customizable sharding and sequence algorithms, and load-balancing algorithms. It also supports result-set caching, backend connection scheduling, inactive-connection recycling, connection pooling, and query routing. That combination suits architectures where data fragmentation, request distribution, and backend scheduling need to be managed in one middleware layer. JDBC connectivity also makes the Java ecosystem a natural fit, while MySQL protocol and syntax compatibility supports applications designed around that interface.

Deployment and lifecycle ownership remain with the adopting team. Mycat2 is not a hosted service, and the repository documents Java 8 support; the latest listed release is v1.22 from June 25, 2022. Those characteristics make it a candidate for organizations prepared to operate Java-based database middleware and shape their own sharding and routing rules. Teams seeking a managed proxy or a wider database platform should consider alternatives, while teams focused on self-hosted MySQL-compatible distribution, optimization, caching, and load balancing should find Mycat2 more aligned with their needs.

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Mycat2 pricing

Mycat2 fact sheet

Alternatives to Mycat2

• Heimdall Database ProxyA broad database proxy with pooling, routing, analytics, security, and failover.9.4
• ProxySQLA free, open-source proxy for routing, pooling, balancing, and managing database traffic.9.2
• ShardingSphere-ProxyA self-hosted proxy for routing, scaling, and high availability across four database protocols.9.0

See all Mycat2 alternatives →

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update