etcd多实例配置

多实例进行配置，分别在多个不同端口进行监听，避免开启单机部署监听端口冲突；

查看go版本：

go version

若没有go环境，则进行下载，解压至/usr/local后进行环境配置，编辑vim ~./bashrc

vim ~./bashrc

export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin

最后确保环境成功

source ~/.bashrc

随后安装goreman

go install github.com/mattn/goreman@latest
goreman help

 配置文件

etcd1: etcd --name infra1 --listen-client-urls http://127.0.0.1:12379 --advertise-client-urls http://127.0.0.1:12379 --listen-peer-urls http://127.0.0.1:12380 --initial-advertise-peer-urls http://127.0.0.1:12380 --initial-cluster-token etcd-cluster-1 --initial-cluster 'infra1=http://127.0.0.1:12380,infra2=http://127.0.0.1:22380,infra3=http://127.0.0.1:32380' --initial-cluster-state new --enable-pprof --logger=zap --log-outputs=stderr

etcd2: etcd --name infra2 --listen-client-urls http://127.0.0.1:22379 --advertise-client-urls http://127.0.0.1:22379 --listen-peer-urls http://127.0.0.1:22380 --initial-advertise-peer-urls http://127.0.0.1:22380 --initial-cluster-token etcd-cluster-1 --initial-cluster 'infra1=http://127.0.0.1:12380,infra2=http://127.0.0.1:22380,infra3=http://127.0.0.1:32380' --initial-cluster-state new --enable-pprof --logger=zap --log-outputs=stderr

etcd3: etcd --name infra3 --listen-client-urls http://127.0.0.1:32379 --advertise-client-urls http://127.0.0.1:32379 --listen-peer-urls http://127.0.0.1:32380 --initial-advertise-peer-urls http://127.0.0.1:32380 --initial-cluster-token etcd-cluster-1 --initial-cluster 'infra1=http://127.0.0.1:12380,infra2=http://127.0.0.1:22380,infra3=http://127.0.0.1:32380' --initial-cluster-state new --enable-pprof --logger=zap --log-outputs=stderr

执行相关start

goreman -f local_cluster_procfile  start

启动完成之后查看集群内的成员

etcdctl --endpoints=http://localhost:22379  member list

关闭某个节点

goreman run stop etcd2

重启某个节点

goreman run restart etcd2

 多节点情况下，指定添加某一节点的数据

 当中止一个节点时，其他节点正常运行，可以访问，中止节点无法继续访问