sudo cp zoo_sample.cfg zoo.cfg cd ../bin ./zkServer.sh start
2、zookeeper伪集群
“伪分布式集群” 就是在在一台PC中启动多个ZooKeeper的实例。
“完全分布式集群” 是每台PC，启动一个ZooKeeper实例。
测试环境目录结构
zk1、zk2、zk3目录内容如下
#新建myid文件 echo "1" > /usr/local/zookeeper/zk1/myid echo "2" > /usr/local/zookeeper/zk2/myid echo "3" > /usr/local/zookeeper/zk3/myid
分别修改zook配置文件,conf文件目录如下
vim zoo1.cfg #修改对应的配置文件 # 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=/usr/local/zookeeper/zk1 # 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:2888:3888 server.2=localhost:2889:3889 server.3=localhost:2890:3890
启动
cd ../bin ./zkServer.sh start zoo1.cfg ./zkServer.sh start zoo2.cfg ./zkServer.sh start zoo3.cfg
查看leader，follower状态
./zkServer.sh status zoo1.cfg ./zkServer.sh status zoo2.cfg ./zkServer.sh status zoo3.cfg
测试
./zkCli.sh -server 127.0.0.1:2181 ls / create /zk1 zk1 get /zk1
连上127.0.0.1:2182或者3都能取到在任意一台中设置的数据
可以关闭其中一台测试自动选举leader