centos上安装zookeeper

下载zookeeper

# 创建zookeeper文件夹
cd /usr/local/
mkdir zookeeper
cd zookeeper

# 下载 解压
wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/current/apache-zookeeper-3.6.2-bin.tar.gz

tar -zxvf apache-zookeeper-3.6.2-bin.tar.gz

配置zookeeper

cd /usr/local/zookeeper/apache-zookeeper-3.6.2-bin/conf

# cp 一份zoo_sample.cfg
cp zoo_sample.cfg zoo.cfg

# 修改以下配置
vim zoo.cfg

dataDir=/usr/local/zookeeper/apache-zookeeper-3.6.2-bin/dataDir
dataLogDir=/usr/local/zookeeper/apache-zookeeper-3.6.2-bin/dataLogDir
quorumListenOnAllIPs=true

zoo.cfg

# 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=/usr/local/zookeeper/apache-zookeeper-3.6.2-bin/dataDir
dataLogDir=/usr/local/zookeeper/apache-zookeeper-3.6.2-bin/dataLogDir
# 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

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true
quorumListenOnAllIPs=true

添加到全局环境变量

vim /etc/profile

# 添加到最后zookeeper 
export ZOOKEEPER_HOME=/usr/local/zookeeper/apache-zookeeper-3.6.2-bin
export PATH=$PATH:$ZOOKEEPER_HOME/bin

# 刷新配置
source /etc/profile

启动命令

服务管理命令：zkServer.sh start|stop|restart|status
客户端连接：zkCli.sh -server ${ip}:${port}