Zookeeper伪分布式安装

Zookeeper伪分布式安装  伪分布式集群” 就是在一台PC中，启动多个ZooKeeper的实例
tar -zxvf zookeeper-3.4.6.tar.gz -C /opt/modules/
修改配置文件conf/zoo.cfg
mkdir /home/zookeeper/zookeeper01
修改数据存放目录，端口
cp /opt/modules/zookeeper-3.4.6/conf/zoo_sample.cfg /opt/modules/zookeeper-3.4.6/conf/zoo.cfg
vi conf/zoo.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/zookeeper/zookeeper01
clientPort=2181
启动zookeeper
bin/zkServer.sh                 ./zkServer.sh start zoo.cfg
#zk的服务显示为QuorumPeerMain   ./zkServer.sh status zoo.cfg   Mode: standalone
停止ZooKeeper服务
bin/zkServer.sh stop             ./zkServer.sh stop  zoo.cfg


伪分布式集群安装  示例启动了3个ZooKeeper的实例
创建环境目录
mkdir /home/zookeeper/zk1
mkdir /home/zookeeper/zk2
mkdir /home/zookeeper/zk3
#新建myid文件
echo "1" > /home/zookeeper/zk1/myid
echo "2" > /home/zookeeper/zk2/myid
echo "3" > /home/zookeeper/zk3/myid
分别修改配置文件
cp /opt/modules/zookeeper-3.4.6/conf/zoo_sample.cfg /opt/modules/zookeeper-3.4.6/conf/zk1.cfg
修改：dataDir,clientPort增加：集群的实例，server.X，”X”表示每个目录中的myid的值
~ vi /opt/modules/zookeeper-3.4.6/conf/zk1.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/zookeeper/zk1
clientPort=2181
server.1=192.168.192.129:2888:3888
server.2=192.168.192.129:2889:3889
server.3=192.168.192.129:2890:3890
~ vi /opt/modules/zookeeper-3.4.6/conf/zk2.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/zookeeper/zk2
clientPort=2182
server.1=192.168.192.129:2888:3888
server.2=192.168.192.129:2889:3889
server.3=192.168.192.129:2890:3890


~ vi /opt/modules/zookeeper-3.4.6/conf/zk3.cfg
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/home/zookeeper/zk3
clientPort=2183
server.1=192.168.192.129:2888:3888
server.2=192.168.192.129:2889:3889
server.3=192.168.192.129:2890:3890
启动/bin集群
./zkServer.sh start zk1.cfg
./zkServer.sh start zk2.cfg
./zkServer.sh start zk3.cfg
停止/bin集群
./zkServer.sh stop zk1.cfg
./zkServer.sh stop zk1.cfg
./zkServer.sh stop zk1.cfg
#查看节点状态
./zkServer.sh status zk1.cfg
查看ZooKeeper物理文件目录结构
yum -y install tree
/home/zookeeper/  $ tree -L 3
── zk1
│   ├── myid
│   ├── version-2
│   │   ├── acceptedEpoch
│   │   ├── currentEpoch
│   │   ├── log.100000001
│   │   └── snapshot.0
│   └── zookeeper_server.pid
zookeeper命令行操作
./zkCli.sh -server 192.168.192.129:2181
通过help打印命令行帮助
help
#ls,查看/目录内容
ls /
#create,创建一个znode节点
create /node conan
#get,查看/node的数据信息
get /node
#set,修改数据
set /node fens.me
#delete,删除/node
delete /node
#quit,退出客户端连接
quit