zookeeper单机伪集群配置

一、配置

1、在 opt 目录下建一个文件夹 zk，分别把zookeeper 安装包复制三份，命令为zookeeper-0  zookeeper_1  zookeeper_2

2、分别在每一个zookeeper目录下创建一个date目录--->mkdir date

3、配置 conf 文件 zoo.cfg

# 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/zk/zookeeper-3.4.6_0/data
dataLogDir=/opt/zk/zookeeper-3.4.6_0/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=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

server.1=localhost:2887:3887
server.2=localhost:2888:3888
server.3=localhost:2889:3889

　注意：

在zookeeper_0 的　clientPort=2181

在zookeeper_1 的　clientPort=2182

在zookeeper_2 的　clientPort=2183

4、配置 data

在 data 目录下建立 myid 文件，内容分别为：

zookeeper_0  myid 为 1

zookeeper_0  myid 为 2

zookeeper_0 myid 为 3（和zoo.cfg 里面server 后面的数字相同）

5、配置 bin/zkServer.sh 

f分别把 三个zk下的bin/zkServer.sh重命名为bin/zkServer.-1sh； bin/zkServer.-2sh； bin/zkServer-3.sh  

6、配置环境变量

export ZK_HOME=/opt/zk
export PATH=$ZK_HOME/zookeeper-3.4.6_0/bin:$ZK_HOME/zookeeper-3.4.6_1/bin:$ZK_HOME/zookeeper-3.4.6_2/bin:$PATH

7、启动

分别执行：bin/zkServer.-1sh start；  bin/zkServer.-2sh start； bin/zkServer-3.sh start

  验证：bin/zkServer.-1sh status；  bin/zkServer.-2sh status； bin/zkServer-3.sh status

出现两个：follow，一个leader 则启动成功