一，下载zookeeper：
1，官网地址
http://zookeeper.apache.org/
找到这个地址：
https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.5.6/
2,下载
[root@localhost liuhongdi]# cd /usr/local/source/ [root@localhost source]# wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.5.6/apache-zookeeper-3.5.6-bin.tar.gz
说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest
对应的源码可以访问这里获取： https://github.com/liuhongdi/
说明：作者:刘宏缔 邮箱: 371125307@qq.com
二，解压
[root@localhost source]# tar -zxvf apache-zookeeper-3.5.6-bin.tar.gz
[root@localhost source]# mv apache-zookeeper-3.5.6-bin /usr/local/soft/
三，安装
1，创建数据目录:
[root@localhost source]# mkdir /data/data [root@localhost source]# mkdir /data/data/zookeeper [root@localhost source]# chmod 777 /data/data/zookeeper/
2,修改配置文件
[root@localhost soft]# cd apache-zookeeper-3.5.6-bin/ [root@localhost apache-zookeeper-3.5.6-bin]# cd conf/ [root@localhost conf]# cp zoo_sample.cfg zoo.cfg [root@localhost conf]# vi zoo.cfg dataDir=/data/data/zookeeper
说明：dataDir=的值：是在配置文件中，指定要使用的数据目录
3,把二进制命令的路径加入系统path
[root@localhost conf]# vi /etc/profile
说明：在末尾增加以下命令：
export ZK_HOME=/usr/local/soft/apache-zookeeper-3.5.6-bin export PATH=$ZK_HOME/bin:$PATH
修改完成之后，使配置起作用：
[root@localhost conf]# source /etc/profile
四，启动和停止zookeeper
启动
[root@localhost conf]# zkServer.sh start
停止
[root@localhost conf]# zkServer.sh stop
五，增加systemd管理zookeeper功能
1,新建service文件
[root@localhost conf]# vi /etc/systemd/system/zookeeper.service
说明：service文件的内容:
[Unit] Description=zookeeper.service After=network.target ConditionPathExists=/usr/local/soft/apache-zookeeper-3.5.6-bin/conf/zoo.cfg [Service] Type=forking User=root Group=root ExecStart=/usr/local/soft/apache-zookeeper-3.5.6-bin/bin/zkServer.sh start ExecStop=/usr/local/soft/apache-zookeeper-3.5.6-bin/bin/zkServer.sh stop [Install] WantedBy=multi-user.target
2,直接使用systemctl启动zookeeper会因找不到java的路径报错，
我们需要手动修改zkEnv.sh文件：
[root@localhost conf]# vi /usr/local/soft/apache-zookeeper-3.5.6-bin/bin/zkEnv.sh
编辑的内容：
添加如下一行 JAVA_HOME=/usr/local/soft/jdk-13.0.2 到此两行上方即可: ZOOBINDIR="${ZOOBINDIR:-/usr/bin}" ZOOKEEPER_PREFIX="${ZOOBINDIR}/.."
3,测试systemctl的管理：
启动
[root@localhost conf]# systemctl start zookeeper
停止
[root@localhost conf]# systemctl stop zookeeper
六，如何查看当前已安装的zookeeper的版本?
[root@localhost conf]# echo stat|nc 127.0.0.1 2181 stat is not executed because it is not in the whitelist.
说明：需要解决上面这个报错
[root@localhost conf]# vi /usr/local/soft/apache-zookeeper-3.5.6-bin/bin/zkServer.sh
编辑的内容:
找到: else echo "JMX disabled by user request" >&2 ZOOMAIN="org.apache.zookeeper.server.quorum.QuorumPeerMain" fi 在上面这行fi下面添加： ZOOMAIN="-Dzookeeper.4lw.commands.whitelist=* ${ZOOMAIN}"
继续测试
[root@localhost conf]# systemctl stop zookeeper [root@localhost conf]# systemctl start zookeeper [root@localhost conf]# echo stat|nc 127.0.0.1 2181 Zookeeper version: 3.5.6-c11b7e26bc554b8523dc929761dd28808913f091, built on 10/08/2019 20:18 GMT Clients: /127.0.0.1:41352[0](queued=0,recved=1,sent=0) Latency min/avg/max: 0/0/0 Received: 1 Sent: 0 Connections: 1 Outstanding: 0 Zxid: 0x0 Mode: standalone Node count: 5
七，关闭zookeeper内置的管理器
zookeeper内置有一个web管理器，默认使用8080端口，
但这个版本的管理器不能正常访问，
我们可以避免启动内置的管理器，也避免占用8080端口
[root@localhost conf]# vi /usr/local/soft/apache-zookeeper-3.5.6-bin/conf/zoo.cfg [root@localhost conf]# systemctl stop zookeeper [root@localhost conf]# systemctl start zookeeper
说明：在配置文件zoo.cfg中添加如下一行：
admin.enableServer=false
八，配置zookeeper的日志目录:
1,创建日志目录
[root@localhost conf]# mkdir /data/logs/zookeeperlogs [root@localhost conf]# chmod 777 /data/logs/zookeeperlogs
2,在zkEnv.sh中定义日志的路径
[root@localhost conf]# vi /usr/local/soft/apache-zookeeper-3.5.6-bin/bin/zkEnv.sh
说明：定义ZOO_LOG_DIR这个变量即可
if [ "x${ZOO_LOG_DIR}" = "x" ] then #ZOO_LOG_DIR="$ZOOKEEPER_PREFIX/logs" ZOO_LOG_DIR="/data/logs/zookeeperlogs" fi
3,测试效果:
[root@localhost conf]# systemctl stop zookeeper [root@localhost conf]# systemctl start zookeeper [root@localhost conf]# ll /data/logs/zookeeperlogs/ 总用量 8 -rw-r--r-- 1 root root 7649 2月 18 21:36 zookeeper-root-server-localhost.localdomain.out
九，查看本地centos的版本:
[root@localhost lib]# cat /etc/redhat-release CentOS Linux release 8.1.1911 (Core)