Centos 安装zookeeper

1、创建 ~/DevToolKit 文件夹：

2、进入到 /DevToolKit 目录中：

    cd ~/DevToolKit/

3、下载 zookeeper-3.4.10.tar.gz：

    wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz

4、解压缩 zookeeper-3.4.10.tar.gz：

    tar -zxvf zookeeper-3.4.10.tar.gz

5、进入到 /home/jiangyi/DevToolKit/zookeeper-3.4.10/conf 目录中：

    cd zookeeper-3.4.10/conf/

6、复制 zoo_sample.cfg 文件的并命名为为 zoo.cfg：

    cp zoo_sample.cfg zoo.cfg

7、用 vim 打开 zoo.cfg 文件并修改其内容为如下：

    # The number of milliseconds of each tick

    # zookeeper 定义的基准时间间隔，单位：毫秒

    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=/tmp/zookeeper

    # 数据文件夹

    dataDir=/home/jiangyi/DevToolKit/zookeeper-3.4.10/data

    # 日志文件夹

    dataLogDir=/home/jiangyi/DevToolKit/zookeeper-3.4.10/logs

    # the port at which the clients will connect

    # 客户端访问 zookeeper 的端口号

    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

8、保存并关闭 zoo.cfg 文件:

9、进入到 /usr/local/services/zookeeper/zookeeper-3.4.9/bin 目录中：

    cd ../bin/

10、用 vim 打开 /etc/ 目录下的配置文件 profile：

    vim /etc/profile

    并在其尾部追加如下内容：

    export ZOOKEEPER_HOME=/home/jiangyi/DevToolKit/zookeeper-3.4.10/

    export PATH=$ZOOKEEPER_HOME/bin:$PATH

    export PATH

11、使 /etc/ 目录下的 profile 文件即可生效：

    source /etc/profile

12、启动 zookeeper 服务：

    zkServer.sh start

13、查询 zookeeper 状态：

    zkServer.sh status

14、关闭 zookeeper 服务：

    zkServer.sh stop

15、重启 zookeeper 服务：

    zkServer.sh restart

16. 切换到root用户，设置防火墙，ip屏蔽取消

firewall-cmd --permanent --add-port=2181/tcp

firewall-cmd --permanent --add-port=20880/tcp

firewall-cmd --permanent --add-port=20881/tcp

firewall-cmd --permanent --add-port=29060/tcp

firewall-cmd --reload

systemctl restart firewalld.service