Zookeeper安装

Zookeeper 安装与部署

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更多Hadoop组件配套安装与部署
   Hadoop：https://blog.youkuaiyun.com/Gordo_Li/article/details/103309484
   Hbase: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199302
   Hive: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199319
   Pig: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199334
   Sqoop: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199352
   Flume: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199291
   Zoopkeeper: https://blog.youkuaiyun.com/Gordo_Li/article/details/103199364
部分组件软件包：
   soft.gz.tar: https://download.youkuaiyun.com/download/Gordo_Li/11993074

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1. 下载软件,解压与移动
   网站：

   cd /data/soft/
   wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/stable/apache-zookeeper-3.5.6.tar.gz
   tar -zxvf apache-zookeeper-3.5.6.tar.gz
   mv apache-zookeeper-3.5.6 /data/zookeeper-3.5.6
   cd /data
   ll
   

2. 修改配置文件

   cd /data/zookeeper-3.5.6/conf/
   cp zoo_sample.cfg zoo.cfg
   vi zoo.cfg
   

   配置内容如下：

   # The number of milliseconds of each tick(CS通信心跳时间)
   tickTime=2000
   # The number of ticks that the initial
   # synchronization phase can take（LF初始通信时限）
   initLimit=10
   # The number of ticks that can pass between
   # sending a request and getting an acknowledgement（LF同步通信时限）
   syncLimit=5
   # the directory where the snapshot is stored.
   # do not use /tmp for storage, /tmp here is just
   # example sakes.（数据文件目录）
   dataDir=/data/zookeeper-3.5.6/tmp
   # the port at which the clients will connect（客户端连接端口）
   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
   
   # 服务器编号、服务器地址、LF通信端口、选举端口
   server.1=hw1:2888:3888
   server.2=hw2:2888:3888
   server.3=hw3:2888:3888
   

   在/data/zookeeper-3.5.6/下创建/tmp目录，并在/tmp下创建一个myid文件：

   mkdir /data/zookeeper-3.5.6/tmp
   cd /data/zookeeper-3.5.6/tmp
   vi myid     # 保存并退出
   

3. 传给另两个服务器

   scp -r /data/zookeeper-3.5.6/ hw2:/data/zookeeper-3.5.6
   scp -r /data/zookeeper-3.5.6/ hw3:/data/zookeeper-3.5.6
   

   在三台机器dataDir目录（ /data/zookeeper/tmp/ 目录）下，分别生成一个myid文件，其内容分别为1，2，3.

   cd /data/zookeeper-3.5.6/tmp
   vi myid
   

4. 配置环境变量（三台）

   vi /etc/profile
   
   export JAVA_HOME=/usr/local/jdk1.8
   export HADOOP_HOME=/data/hadoop-2.7.3
   export HIVE_HOME=/data/hive-2.3.6
   export HBASE_HOME=/data/hbase-1.2.6
   export PIG_HOME=/data/pig-0.17.0
   export SQOOP_HOME=/data/sqoop-1.4.7
   export ZOOKEEPER_HOME=/data/zookeeper-3.5.6
   export PATH=$PATH:$JAVA_HOME/bin:$HADOOP_HOME/bin:$HIVE_HOME/bin:$HBASE_HOME/bin:$PIG_HOME/bin:$SQOOP_HOME/bin:$ZOOKEEPER_HOME/bin
   
   source /etc/profile
   

5. 启动

   若没有完全启动，尝试重启（reboot）

   • 分别在每台服务器上运行 zkServer.sh start命令

     [root@hw1 ~]# zkServer.sh start
     ZooKeeper JMX enabled by default
     Using config: /data/zookeeper-3.5.6/bin/../conf/zoo.cfg
     Starting zookeeper ... STARTED
     

   • 分别在三台机器执行查看状态命令(一台Mode: leader，其余为Mode: follower):

     [root@hw1 ~]# zkServer.sh status
     ZooKeeper JMX enabled by default
     Using config: /data/zookeeper-3.5.6/bin/../conf/zoo.cfg
     Client port found: 2181. Client address: localhost.
     Mode: follower
     
     [root@hw2 ~]# zkServer.sh status
     ZooKeeper JMX enabled by default
     Using config: /data/zookeeper-3.5.6/bin/../conf/zoo.cfg
     Client port found: 2181. Client address: localhost.
     Mode: follower
     
     [root@hw3 ~]# zkServer.sh status
     ZooKeeper JMX enabled by default
     Using config: /data/zookeeper-3.5.6/bin/../conf/zoo.cfg
     Client port found: 2181. Client address: localhost.
     Mode: leader
     

   • 查看jps（都要有QuorumPeerMain）：

     [root@hw1 ~]# jps
     7571 QuorumPeerMain
     7737 Jps
     1038 WrapperSimpleApp