多主机部署zookeeper集群

1、创建docker-compose文件

version: '3.4'

services:
  zookeeper:
    image: harbor-test.aitdcoin.com/sgpexchange/zookeeper:v3.4.13
    restart: always
    hostname: zookeeper3
    container_name: zookeeper
    ports:
    - 2181:2181
    - 2888:2888
    - 3888:3888
    volumes:
    - "./data:/opt/zookeeper-3.4.13/data"
    - "./conf/zoo.cfg:/opt/zookeeper-3.4.13/conf/zoo.cfg"
    environment:
      ZOO_MY_ID: 3
      ZOO_SERVERS: server.1=192.168.8.51:2888:3888 server.2=192.168.8.61:2888:3888 server.3=192.168.8.62:2888:3888
    networks:
      - zookeeper-net

networks:
  zookeeper-net:
    driver: bridge

三台主机都要配置，其中hostname自己定义，注意IP地址和myid更改

2、修改配置文件

[root@sgpexchangeintermediate-192-168-8-62 zookeeper]# vim conf/zoo.cfg 

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial 
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between 
# sending a request and getting an ackNowledgement
synclimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just 
# example sakes.
dataDir=/opt/zookeeper-3.4.13/data
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the 
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
autopurge.purgeInterval=1

3、启动zookeeper各个节点

[root@sgpexchangeMysqL-192-168-8-61 zookeeper]# docker-compose up -d
Creating network "zookeeper_zookeeper-net" with driver "bridge"
Creating zookeeper ... done

4、测试集群连通性

#随意进入一台主机添加一个根节点目录
[root@sgpexchangeintermediate-192-168-8-62 zookeeper]# docker exec -it zookeeper /bin/bash
root@zookeeper3:/opt/zookeeper-3.4.13# cd bin/
root@zookeeper3:/opt/zookeeper-3.4.13/bin# ./zkCli.sh -server 192.168.8.51:2181
Connecting to 192.168.8.51:2181


WatchedEvent state:SyncConnected type:None path:null
[zk: 192.168.8.51:2181(CONNECTED) 0] create /project zookeeper
Node already exists: /project
[zk: 192.168.8.51:2181(CONNECTED) 1] get /project
zookeeper_project
cZxid = 0x9
ctime = Thu May 13 11:24:46 UTC 2021
mZxid = 0x9
mtime = Thu May 13 11:24:46 UTC 2021
pZxid = 0x9
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 17
numChildren = 0
# 在第二个根节点查询节点目录情况
[zk: 192.168.8.51:2181(CONNECTED) 2] root@zookeeper3:/opt/zookeeper-3.4.13/bin# ./zkCli.sh -server 192.168.8.61:2181
Connecting to 192.168.8.61:2181

[zk: 192.168.8.61:2181(CONNECTED) 1] get /project
zookeeper_project
cZxid = 0x2
ctime = Thu May 13 11:14:34 UTC 2021
mZxid = 0x2
mtime = Thu May 13 11:14:34 UTC 2021
pZxid = 0x2
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 17
numChildren = 0
[zk: 192.168.8.61:2181(CONNECTED) 2] root@zookeeper3:/opt/zookeeper-3.4.13/bin# ./zkCli.sh -server 192.168.8.62:2181
Connecting to 192.168.8.62:2181

# 在第三个根节点查询新增节点目录
[zk: 192.168.8.62:2181(CONNECTED) 0] get /project
zookeeper_project
cZxid = 0xb
ctime = Thu May 13 11:26:47 UTC 2021
mZxid = 0xb
mtime = Thu May 13 11:26:47 UTC 2021
pZxid = 0xb
cversion = 0
dataVersion = 0
aclVersion = 0
ephemeralOwner = 0x0
dataLength = 17
numChildren = 0
[zk: 192.168.8.62:2181(CONNECTED) 1]

多主机部署zookeeper集群

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