Zookeeper安装（单机）

参考文章：https://www.jianshu.com/p/30bcaf55f451

Zookeeper搭建

• 下载zookeeper

  国内镜像源：https://mirror.bjtu.edu.cn/apache/zookeeper/stable/

• 解压zookeeper

  tar -zxvf apache-zookeeper-3.5.9-bin.tar.gz
  

• 配置zookeeper

  # 创建相应目录
  mkdir /tmp/zookeeper
  mkdir /tmp/zookeeper/data
  
  cd apache-zookeeper-3.5.9-bin/conf
  cp zoo_sample.cfg zoo.cfg
  vim zoo.cfg
  

  tickTime=2000 #zookeeper 服务器心跳时间，单位为ms
  initLimit=10  #投票选举新 leader 的初始化时间
  syncLimit=5  #leader 与 follower 心跳检测最大容忍时间，响应超过 tickTime * syncLimit，认为 leader 丢失该 follower
  clientPort=2181 #端口
  dataDir=/tmp/zookeeper/data #数据目录
  

• 配置zookeeper日志

  cd ../bin
  vim zkEnv.sh
  

  if [ "x${ZOO_LOG_DIR}" = "x" ]
  then
      ZOO_LOG_DIR="/tmp/zookeeper/logs"
  fi
  

• 配置环境变量

  vim ~/.bash_profile
  

  # zookeeper
  export ZOOKEEPER_INSTALL=/software/apache-zookeeper-3.5.9-bin
  export PATH=$PATH:$ZOOKEEPER_INSTALL/bin 
  

  source ~/.bash_profile
  

• 运行zookeeper

  （1）启动zookeeper服务，读取配置文件为conf/zoo.cfg

  cd /software/apache-zookeeper-3.5.9-bin
  bin/zkServer.sh start conf/zoo.cfg 
  

  显示如下：

  ZooKeeper JMX enabled by default
  Using config: conf/zoo.cfg
  Starting zookeeper ... STARTED
  

  （2）查看指定配置的zookeeper的运行状态

  bin/zkServer.sh status conf/zoo.cfg 
  

  显示如下：

  ZooKeeper JMX enabled by default
  Using config: conf/zoo.cfg
  Client port found: 2181. Client address: localhost. Client SSL: false.
  Mode: standalone