https://github.com/wwcd/grpc-lb

Example for grpc-lb with etcd
https://github.com/wwcd/grpc-lb

etcd golang grpc grpc-lb

Last synced: 4 months ago
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Example for grpc-lb with etcd

• Host: GitHub
• URL: https://github.com/wwcd/grpc-lb
• Owner: wwcd
• Created: 2018-02-28T09:25:04.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2020-12-16T05:10:54.000Z (about 4 years ago)
• Last Synced: 2024-09-29T10:47:34.907Z (4 months ago)
• Topics: etcd, golang, grpc, grpc-lb
• Language: Go
• Homepage:
• Size: 3.45 MB
• Stars: 167
• Watchers: 8
• Forks: 43
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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[![Build Status](https://travis-ci.org/wwcd/grpc-lb.svg?branch=master)](https://travis-ci.org/wwcd/grpc-lb)

# 说明

[gRPC服务发现&负载均衡](https://segmentfault.com/a/1190000008672912)中的例子, 修订如下

- register中重复PUT, watch时没有释放导致的内存泄漏

- 退出时不能正常unregister

- 接收到etcd的delete事件时，未删除数据[#1](https://github.com/wwcd/grpc-lb/issues/1)

- 使用resolver包替换naming包，此包状态已变为Deprecated

- 增加[grpc-gateway](https://github.com/grpc-ecosystem/grpc-gateway)例子

# 测试

## 启动ETCD

	# https://coreos.com/etcd/docs/latest/op-guide/container.html#docker

	export NODE1=192.168.1.21

	docker volume create --name etcd-data

	export DATA_DIR="etcd-data"

	REGISTRY=quay.io/coreos/etcd

	# available from v3.2.5

	# REGISTRY=gcr.io/etcd-development/etcd

	docker run -d\

	  -p 2379:2379 \

	  -p 2380:2380 \

	  --volume=${DATA_DIR}:/etcd-data \

	  --name etcd ${REGISTRY}:latest \

	  /usr/local/bin/etcd \

	  --data-dir=/etcd-data --name node1 \

	  --initial-advertise-peer-urls http://${NODE1}:2380 --listen-peer-urls http://0.0.0.0:2380 \

	  --advertise-client-urls http://${NODE1}:2379 --listen-client-urls http://0.0.0.0:2379 \

	  --initial-cluster node1=http://${NODE1}:2380

## 启动测试程序

    *注: golang1.11以上版本进行测试*

    # 分别启动服务端

    go run -mod vendor cmd/svr/svr.go -port 50001

    go run -mod vendor cmd/svr/svr.go -port 50002

    go run -mod vendor cmd/svr/svr.go -port 50003

    # 启动客户端

    go run -mod vendor cmd/cli/cli.go

    # 启动grpc-gateway代理，提供HTTP-RESTful服务

    go run -mod vendor cmd/gw/gw.go

    curl -X POST http://localhost:60001/hello -d '{"name": "fromGW"}'