部署前准备
本次部署为3台主机集群
- zookeeper官网下载，本次部署版本为zookeeper-3.4.9
- 主机jdk安装，本次部署版本为jdk1.8
部署过程
- 压缩包解压tar -zxvf zookeeper-3.4.9.tar.gz
- 修改zookeeper配置文件，在zookeeper-3.4.9/conf/文件夹下，将zoo_sample.cfg复制重命名为zoo.cfg，对应修改配置，主要是dataDir路径、集群配置
| # 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=/home/emall/soft/zookeeper/zookeeper-3.4.9/data # 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 #集群配置 server.1=136.64.50.223:2888:3888 server.2=136.64.50.224:2888:3888 server.3=136.64.50.225:2888:3888 |
3.修改zkServer.sh，新增jdk配置
| export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-11.b12.el7.x86_64/jre export PATH=$JAVA_HOME/bin:$PATH |
4.zookeeper-3.4.9/路径下新增data文件夹，新建myid文件，内容和步骤2中集群配置server.x中的x相对于，比如：server.1=136.64.50.223:2888:3888，136.64.50.223主机的myid内容为1
部署验证
三台全部部署完成后，分别启动，执行 sh zookeeper-3.4.9/bin/zkServer.sh start，对应可以使用sh zookeeper-3.4.9/bin/zkServer.sh status来查看状态，三台全部启动完成后，分别查看每台status：
以上可看出有一台主节点，两台从节点
问题汇总
zookeeper启动现实成功，但是查看状态显示ZooKeeper JMX enabled by default，如下：
查看zookeeper日志（路径为../zookeeper-3.4.9/zookeeper.out），java.net.NoRouteToHostException: No route to host
解决：对应关闭防火墙即可