Zookeeper的安装和设置开机启动

 参考与：https://blog.csdn.net/pucao_cug/article/details/71240246

   安装环境centos7.4，zookeeper版本是3.4.12，JDK我事先已经安装好了

  1.下载zookeeper：wget  https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.12/zookeeper-3.4.12.tar.gz -P /usr/soft

  2.解压到/opt目录下 tar -xzvf zookeeper-3.4.12.tar.gz -C /opt

  3.cd /opt & mv zookeeper-3.4.12 zookeeper

  4.cd zookeeper 进入zookeeper目录

  5.cp conf/zoo_sample.cfg  conf/zoo.cfg  copy配置文件

  6.创建日志和data目录  mkdri -p /opt/zookeeper/{logs,data}

  7.这边有三台机器部署的集群，

      echo "1"  > /opt/zookeeper/data/myid

  8.配置环境变量

     vim /etc/profile 进入编辑页面

    export ZOOKEEPER_HOME=/opt/zookeeper

    export  PATH=$PATH:$JAAV_HOME/bin:$ZOOKEEPER_HOME/bin

    :wq 保存 退出

    刷新profile  source /etc/profile

  9.编辑 zoo.cfg 配置文件    

# 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=/opt/zookeeper/data
dataLogDir=/opt/zookeeper/logs
# 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=500
# Purge task interval in hours
# Set to "0" to disable auto purge feature
autopurge.purgeInterval=24

server.1=ip1:2888:3888
server.2=ip2:2888:3888
server.3=ip3:2888:3888

server.1  这个1 要在对应的ip上的zookeeper进行设置

10.启动zookeeper

  /opt/zookeeper/bin/zkServer.sh start

启动成功之后通过zkServer.sh status 查看状态

11.配置开机启动

   cd /etc/rc.d/init.d

   创建名字为zookeeper的文件

   touch zookeeper  然后使用vim进行编辑

#!/bin/bash
#chkconfig: 2345 10 90
#description: service zookeeper
export JAVA_HOME=/usr/java/jdk1.8.0_131
export ZOO_LOG_DIR=/opt/zookeeper/logs
ZOOKEEPER_HOME=/opt/zookeeper

case "$1" in
start) su root ${ZOOKEEPER_HOME}/bin/zkServer.sh start;;
start-foreground) su root ${ZOOKEEPER_HOME}/bin/zkServer.sh start-foreground;;
stop) su root ${ZOOKEEPER_HOME}/bin/zkServer.sh stop;;
status) su root ${ZOOKEEPER_HOME}/bin/zkServer.sh status;;
restart) su root ${ZOOKEEPER_HOME}/bin/zkServer.sh restart;;
upgrade)su root ${ZOOKEEPER_HOME}/bin/zkServer.sh upgrade;;
print-cmd)su root ${ZOOKEEPER_HOME}/bin/zkServer.sh print-cmd;;
*) echo "requirestart|start-foreground|stop|status|restart|print-cmd";;
esac

保存

添加到开机启动列表中

chkconfig --add zookeeper

添加之后可以通过ckconfig --list进行查看