Crate sz_orm_rw 

SZ-ORM RW — Read-Write Splitting

Provides master/slave read-write splitting routing, supporting round-robin, random, and least-connections load balancing strategies. Write requests are routed to master, read requests are distributed across the slave cluster.

Main Types

• ReadWriteRouter — Read-write splitting router
• LoadBalanceStrategy — Load balancing strategy
• HealthChecker — Health check and failover
• WeightedSlave — Weighted slave configuration
• ReadRationing — Read-write ratio control
• LatencyStats — Latency statistics

Modules

circuit_breaker

断路器模式

replication_lag

复制延迟监控

Structs

HealthChecker

Health checker: tracks each slave’s health status and supports failover

LatencySnapshot

Latency statistics snapshot for a single slave

LatencyStats

Latency statistics: maintains an independent LatencySnapshot for each slave

ReadRationing

Read-write ratio controller: routes read requests to master (strong consistency read) or slave (weak consistency read) by ratio

ReadWriteRouter

Read-write splitting router

WeightedSlave

Weighted slave configuration

Enums

LoadBalanceStrategy

Load balancing strategy

SlaveHealth

Slave health status