consul-cache

consul-cache

consul-cache is a local cache disguised as consul agent and has stronger performance.

Purpose

In the consul cluster, when the app initiates a watch request, the consul agent will forward the request to the consul server, which will put a huge burden on the consul server. The purpose of consul-cache is to separate this burden from the consul server.

Architecture

consul-cache has 2 components.

fetcher

Discover service changes from consul and build all instances corresponding to the service in Redis

cache

cache disguises itself as a consul agent to facilitate service discovery by business programs

Quick Start with Docker compose

Switch to directory docker_compose

cd docker_compose

start

docker-compose up -d

stop

docker-compose down

Register and Discover

refer to this document

Register through consul client

curl -X PUT --data @payload.json \
http://localhost:18550/v1/agent/service/register

Discover through consul-cache

curl 'http://localhost:18500/v1/health/service/web?dc=dc1&passing=true'