只需要俩步

（一）配置zoo.conf文件

# 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=/home/tmp/zookeeper
# 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.
#
# https://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

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpHost=0.0.0.0
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
server.1=10.1.1.91:2888:3888
server.2=10.1.1.92:2888:3888
server.3=10.1.1.94:2888:3888

(二)在每台机器的dataDir创建myid文件，并写入节点的编号

扩展知识：

• initLimit 是在ZooKeeper启动时，Leader等待Followers连接的最大时间。
• syncLimit 是在Leader和Follower之间的最大时间差。
• server.x 行定义每个ZooKeeper节点。x 是节点的ID，hostname:2888:3888 包含ZooKeeper服务器的地址，以及用于Leader选举和通信的端口。
• 验证集群状态：bin/zkCli.sh -server hostname1:2181,hostname2:2181,hostname3:2181