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QuickReference/source/_posts/bigdata/hadoop/zookeper.md

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Hadoop集群Zookeeper配置 /img/site01.jpg 800px 61251 2024-09-011 22:45:40

Zookeeper脚本配置

  • 拷贝ips

    cp ips ips_zookeeper

    修改为

    nn1
nn2
nn3

  • 拷贝三个脚本

    cp scp_all.sh scp_all_zookeeper.sh 
cp ssh_all.sh ssh_all_zookeeper.sh 
cp ssh_root.sh ssh_root_zookeeper.sh

  • 修改脚本

    vim scp_all_zookeeper.sh 
vim ssh_all_zookeeper.sh 
vim ssh_root_zookeeper.sh

    将三个脚本中的ips改为ips_zookeeper

Zookeeper安装

  • 上传到/tmp目录下，解压 
    sudo tar -zxvf /tmp/zookeeper-3.4.8.tar.gz -C /usr/local/
scp -r /usr/local/zookeeper-3.4.8/ root@nn2:/usr/local/
scp -r /usr/local/zookeeper-3.4.8/ root@nn3:/usr/local/
ssh_root_zookeeper.sh chown -R hadoop:hadoop /usr/local/zookeeper-3.4.8
ssh_root_zookeeper.s ln -s /usr/local/zookeeper-3.4.8/ /usr/local/zookeeper

Zookeeper配置

  • zoo.cfg配置

    cd /usr/local/zookeeper/conf/
cp zoo_sample.cfg zoo.cfg

    然后vim zoo.cfg,修改如下：

    # 修改dataDir
dataDir=/data/zookeeper
# 添加一下内容
server.1=nn1:2888:3888 
server.2=nn2:2888:3888 
server.3=nn3:2888:3888

    分发给nn2、nn3 scp_all_zookeeper.sh /usr/local/zookeeper/conf/zoo.cfg /usr/local/zookeeper/conf/

  • zkEnv.sh配置 vim /usr/local/zookeeper/bin/zkEnv.sh 000001.png 分发到nn2、nn3

scp_all_zookeeper.sh /usr/local/zookeeper/bin/zkEnv.sh /usr/local/zookeeper/bin/
  • 创建zookeeper数据目录
ssh_root_zookeeper.sh mkdir -p /data/zookeeper
ssh_root_zookeeper.sh chown -R hadoop:hadoop /data

  • 创建myid文件

    ssh nn1 'echo "1" > /data/zookeeper/myid'
ssh nn2 'echo "2" > /data/zookeeper/myid'
ssh nn3 'echo "3" > /data/zookeeper/myid'

  • 配置Zookeeper环境变量

    # 在其他所有主机也执行
sudo chown -R hadoop:hadoop /etc/profile.d/myEnv.sh

    echo 'export ZOOKEEPER_HOME=/usr/local/zookeeper' >> /etc/profile.d/myEnv.sh
echo 'export PATH=$PATH:$ZOOKEEPER_HOME/bin' >> /etc/profile.d/myEnv.sh

    # 分发到nn2、nn3
scp_all_zookeeper.sh /etc/profile.d/myEnv.sh /etc/profile.d/
# source 环境变量
ssh_all_zookeeper.sh source /etc/profile

Zookeeper的命令

#启动zk服务
ssh_all_zookeeper.sh /usr/local/zookeeper/bin/zkServer.sh start
#查看每个机器ZK运行的状态
ssh_all_zookeeper.sh /usr/local/zookeeper/bin/zkServer.sh status
#整体停止服务
ssh_all_zookeeper.sh /usr/local/zookeeper/bin/zkServer.sh stop 
#重启zk服务
ssh_all_zookeeper.sh /usr/local/zookeeper/bin/zkServer.sh restart

#启动zookeeper客户端，并连接zookeeper集群
/usr/local/zookeeper/bin/zkCli.sh -server nn1:2181
# 可以简化为:
zkCli.sh