zookeeper分布式安装教程

zookeeper分布式安装教程

1. 手动到官网下载然后上传到服务器！https://zookeeper.apache.org/releases.html（单机版可参考上一篇zookeeper单机版安装教程）

2. 解压安装包

   tar -xvf apache-zookeeper-3.5.9-bin.tar.gz -C /home/software
   

3. 在conf目录下配置zoo.cfg文件

   # 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/software/apache-zookeeper-3.5.9-bin/zkData #事务日志文件目录（存储快照的目录）
   
   # 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=10.1.48.216:2888:3888
   server.2=10.1.48.217:2888:3888
   server.3=10.1.48.218:2888:3888
   #四字白名单防止信息泄露，默认开启
   4lw.commands.whitelist=*
   

4. 创建dataDir

   #在apache-zookeeper-3.5.9-bin目录下
   mkdir zkData
   cd zkData
   vi myid #对应上面集群配置的序号，以此递推
   1 #就只写入序号
   

5. 将内容分发到其他的节点

   scp -r apache-zookeeper-3.5.9-bin root@10.1.48.217:/home/software/
   scp -r apache-zookeeper-3.5.9-bin root@10.1.48.218:/home/software/
   #分发结束后注意修改dataDir目录下的myid
   

6. 启动、关闭、查看状态等命令

   #在bin目录下执行
   sh zkServer.sh status #查看状态
   sh zkServer.sh start #启动zookeeper
   sh zkServer.sh stop #关闭zookeeper
   ./zkServer.sh restart #重启zookeeper
   

7. 远程命令

   [root@k8smaster01 bin]# echo conf | nc 10.1.48.216 2181 #查看conf
   clientPort=2181
   secureClientPort=-1
   dataDir=/home/software/apache-zookeeper-3.5.9-bin/zkData/version-2
   dataDirSize=67109868
   dataLogDir=/home/software/apache-zookeeper-3.5.9-bin/zkData/version-2
   dataLogSize=67109868
   tickTime=2000
   maxClientCnxns=60
   minSessionTimeout=4000
   maxSessionTimeout=40000
   serverId=1
   initLimit=10
   syncLimit=5
   electionAlg=3
   electionPort=3888
   quorumPort=2888
   peerType=0
   membership: 
   server.1=10.1.48.216:2888:3888:participant
   server.2=10.1.48.217:2888:3888:participant
   server.3=10.1.48.218:2888:3888:participant
   

   [root@k8smaster01 bin]# echo stat | nc 10.1.48.216 2181 #查看状态
   Zookeeper version: 3.5.9-83df9301aa5c2a5d284a9940177808c01bc35cef, built on 01/06/2021 19:49 GMT
   Clients:
    /10.1.48.216:55424[0](queued=0,recved=1,sent=0)
   
   Latency min/avg/max: 0/0/0
   Received: 4
   Sent: 3
   Connections: 1
   Outstanding: 0
   Zxid: 0x6
   Mode: follower
   Node count: 5
   

   [root@k8smaster01 bin]# echo ruok | nc 10.1.48.217 2181 #查看其他节点是否存活
   imok #表示存活
   [root@k8smaster01 bin]# echo ruok | nc 10.1.48.218 2181
   Ncat: Connection refused. #表示不存活