配置
node1
name: etcd-1
data-dir: /data/etcd/node1
listen-client-urls: http://127.0.0.1:6701
advertise-client-urls: http://127.0.0.1:6701
listen-peer-urls: http://127.0.0.1:16701
initial-advertise-peer-urls: http://127.0.0.1:16701
initial-cluster: etcd-1=http://127.0.0.1:16701,etcd-2=http://127.0.0.1:16702,etcd-3=http://127.0.0.1:16703
initial-cluster-token: etcd-cluster-token
initial-cluster-state: new
cd /data/packages/etcd-v3.5.4-linux-amd64;./etcd --config-file=/data/etcd/node1/conf.yml
node2
name: etcd-2
data-dir: /data/etcd/node2
listen-client-urls: http://127.0.0.1:6702
advertise-client-urls: http://127.0.0.1:6702
listen-peer-urls: http://127.0.0.1:16702
initial-advertise-peer-urls: http://127.0.0.1:16702
initial-cluster: etcd-1=http://127.0.0.1:16701,etcd-2=http://127.0.0.1:16702,etcd-3=http://127.0.0.1:16703
initial-cluster-token: etcd-cluster-token
initial-cluster-state: new
cd /data/packages/etcd-v3.5.4-linux-amd64;./etcd --config-file=/data/etcd/node2/conf.yml
node3
name: etcd-3
data-dir: /data/etcd/node3
listen-client-urls: http://127.0.0.1:6703
advertise-client-urls: http://127.0.0.1:6703
listen-peer-urls: http://127.0.0.1:16703
initial-advertise-peer-urls: http://127.0.0.1:16703
initial-cluster: etcd-1=http://127.0.0.1:16701,etcd-2=http://127.0.0.1:16702,etcd-3=http://127.0.0.1:16703
initial-cluster-token: etcd-cluster-token
initial-cluster-state: new
cd /data/packages/etcd-v3.5.4-linux-amd64;./etcd --config-file=/data/etcd/node3/conf.yml
集群状态命令
# 查看节点状态
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' --write-out=table endpoint status
# 查看节点信息
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' --write-out=table member list
数据操作命令
# 写数据
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' put user 'user'
OK
# 获取数据
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' get user
user
user
# json形式获取数据
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' --write-out='json' get user
{"header":{"cluster_id":14495651392122646756,"member_id":9121633945989494648,"revision":3,"raft_term":7},"kvs":[{"key":"dXNlcg==","create_revision":2,"mod_revision":3,"version":2,"value":"amlhbmd4dQ=="}],"count":1}
# 前缀方式获取数据
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' --write-out='json' get user --prefix
{"header":{"cluster_id":14495651392122646756,"member_id":2265291478623953179,"revision":6,"raft_term":7},"kvs":[{"key":"dXNlcjE=","create_revision":5,"mod_revision":5,"version":1,"value":"amlhbmd4dQ=="},{"key":"dXNlcjI=","create_revision":6,"mod_revision":6,"version":1,"value":"aGFoYQ=="}],"count":2}
# 删除数据
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' del user
1
监视数据
# 监视数据可以看到相关key的事件
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' watch user --prefix
租约
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' lease list
found 0 leases
# lease创建后会分配ID
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' lease grant 30
lease 211b80fe02999707 granted with TTL(30s)
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' lease list
found 1 leases
211b80fe02999707
# 使用key并给key分配lease
# 如果lease在grant超时，lease和lease对应的key都会删除
./etcdctl --endpoints='127.0.0.1:6701,127.0.0.1:6702,127.0.0.1:6703' put user3 'test' --lease=211b80fe02999707
【其他】etcd的相关教程结束。
