Module upstream 

Upstream pool management module for Sentinel proxy

This module handles upstream server pools, load balancing, health checking, connection pooling, and retry logic with circuit breakers.

Re-exports

pub use adaptive::AdaptiveBalancer;

pub use adaptive::AdaptiveConfig;

pub use consistent_hash::ConsistentHashBalancer;

pub use consistent_hash::ConsistentHashConfig;

pub use health::ActiveHealthChecker;

pub use health::HealthCheckRunner;

pub use p2c::P2cBalancer;

pub use p2c::P2cConfig;

Modules

adaptive

consistent_hash

health

Active health checking using Pingora’s HttpHealthCheck

p2c

Structs

ConnectionPoolConfig

Connection pool configuration for Pingora’s built-in pooling

HttpVersionOptions

HTTP version configuration for upstream connections

PoolConfigSnapshot

Snapshot of pool configuration for metrics/debugging

PoolStats

Pool statistics

RequestContext

Request context for load balancer decisions

TargetSelection

Selected upstream target

UpstreamPool

Upstream pool managing multiple backend servers

UpstreamTarget

Internal upstream target representation for load balancers

Traits

LoadBalancer

Load balancer trait for different algorithms