1.环境信息：
[root@bigdata003 clickhouse-server]# cat /etc/redhat-release
CentOS Linux release 7.9.2009 (Core)
2. 在/etc/hosts中添加主机信息
10.29.35.240 bigdataxxx3
10.29.35.241 bigdataxxx4
10.29.35.243 bigdataxxx5
3.关闭防火墙和selinux
4. 修改linux文件限制参数
5. 安装和删除clickhouse-server
yum -y install yum-utils
rpm --import https://repo.clickhouse.tech/CLICKHOUSE-KEY.GPG
yum-config-manager --add-repo https://repo.clickhouse.tech/rpm/stable/x86_64
yum -y install clickhouse-server clickhouse-client
yum -y remove clickhouse-server clickhouse-client
注意：在remove时，需要到/etc/clickhouse-server目录，把相关的内容全部删除干净,然后才能重新安装
cd /etc/clickhouse-server
rm -rf *
5.验证zookeeper的状态,和CDH集群共用zookeeper
配置文件： /opt/cloudera/parcels/CDH-6.3.2-1.cdh6.3.2.p0.1605554/etc/zookeeper/conf.dist/zoo.cfg
/opt/cloudera/parcels/CDH-6.3.2-1.cdh6.3.2.p0.1605554/lib/zookee
