一、创建三节点 zookeeper 集群
- 将 docker-compose.yml 保存到当前命令行目录下
docker-compose.yml 文件
version: ‘2‘
networks:
zk:
services:
zookeeper1:
image: zookeeper
container_name: zk1.cloud
networks:
- zk
ports:
- "2181:2181"
environment:
ZOO_MY_ID: 1
ZOO_SERVERS: server.1=0.0.0.0:2888:3888 server.2=zk2.cloud:2888:3888 server.3=zk3.cloud:2888:3888
zookeeper2:
image: zookeeper
container_name: zk2.cloud
networks:
- zk
ports:
- "2182:2181"
environment:
ZOO_MY_ID: 2
ZOO_SERVERS: server.1=zk1.cloud:2888:3888 server.2=0.0.0.0:2888:3888 server.3=zk3.cloud:2888:3888
zookeeper3:
image: zookeeper
container_name: zk3.cloud
networks:
- zk
ports:
- "2183:2181"
environment:
ZOO_MY_ID: 3
ZOO_SERVERS: server.1=zk1.cloud:2888:3888 server.2=zk2.cloud:2888:3888 server.3=0.0.0.0:2888:3888
- 执行命令，如果是首次获取 zookeeper 镜像，输出会有不同
输入
docker pull zookeeper
输出
latest: Pulling from library/zookeeper Digest: sha256:3f03c6f5a91e0f638f3d6a755b2d32c06583766031353be87e2d633fa3006c23 Status: Image is up to date for zookeeper:latest
- 后台启动 zookeeper 集群
docker-compose up -d
输出命令
Creating network "dczk_zk" with the default driver Creating zk2.cloud ... done Creating zk1.cloud ... done Creating zk3.cloud ... done
二、检查进程状态
输入
docker ps
输出
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES cb176c76c620 zookeeper "/docker-entrypoint.…" 6 minutes ago Up 6 minutes 2888/tcp, 3888/tcp, 0.0.0.0:2183->2181/tcp zk3.cloud ee00aba1c766 zookeeper "/docker-entrypoint.…" 6 minutes ago Up 6 minutes 2888/tcp, 0.0.0.0:2181->2181/tcp, 3888/tcp zk1.cloud 5d95baa693c2 zookeeper "/docker-entrypoint.…" 6 minutes ago Up 6 minutes 2888/tcp, 3888/tcp, 0.0.0.0:2182->2181/tcp zk2.cloud
docker-compose ps
输出
Name Command State Ports ----------------------------------------------------------------------------------------------- zk1.cloud /docker-entrypoint.sh zkSe ... Up 0.0.0.0:2181->2181/tcp, 2888/tcp, 3888/tcp zk2.cloud /docker-entrypoint.sh zkSe ... Up 0.0.0.0:2182->2181/tcp, 2888/tcp, 3888/tcp zk3.cloud /docker-entrypoint.sh zkSe ... Up 0.0.0.0:2183->2181/tcp, 2888/tcp, 3888/tcp
三、测试
1. docker 3 为leader
输入
docker exec -it zk1.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: follower
输入
docker exec -it zk2.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: follower
输入
docker exec -it zk3.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: leader
2. 关闭 zk3.cloud 后检查leader变化情况
输入
docker stop zk3.cloud docker exec -it zk2.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: leader
3. 再次启动 zk3.cloud 后检查 leader变化情况
输入
docker start zk3.cloud docker exec -it zk2.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: leader
输入
docker exec -it zk3.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: follower
4. 关闭 zk2.cloud 后检查 leader变化情况
输入
docker stop zk2.cloud docker exec -it zk3.cloud bash ./bin/zkServer.sh status
输出
ZooKeeper JMX enabled by default Using config: /conf/zoo.cfg Mode: leader
原文地址：https://www.cnblogs.com/mmmaaaggg/p/10119134.html
时间： 2024-11-06 14:36:33