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Linux系统卸载,安装,升级,迁移clickHouse数据库
2022-08-02 09:40:00 【夜の雨】
1.查看clickhouse版本
rpm -qa|grep clickhouse2.查看clickhouse服务
service clickhouse-server status3.关闭clickhouse服务
sudo service clickhouse-server stop
//或者直接结束进程
ps -ef|grep click
kill -9 进程码4.卸载clickhouse
yum remove -y clickhouse-common-static
yum remove -y clickhouse-server-common
rm -rf /var/lib/clickhouse
rm -rf /etc/clickhouse-*
rm -rf /var/log/clickhouse-server
5.安装clickhouse
三个文件选择同一个版本,21版本以下可能不支持clickhouse开窗函数,我选择的是21.3.4.25版本
//按顺序安装clickhouse组件
rpm -ivh clickhouse-common-static-21.3.4.25-2.x86_64.rpm
rpm -ivh clickhouse-server-21.3.4.25-2.noarch.rpm
rpm -ivh clickhouse-client-21.3.4.25-2.noarch.rpm修改congfig和users配置


修改配置vim /etc/clickhouse-server/config.xml
<!-- Path to data directory, with trailing slash. -->这一行后改为存放数据的位置
<path>/var/lib/clickhouse/</path>
修改配置vim /etc/clickhouse-server/users.xml数据库用户名和密码
<password>default</password>
<!-- Settings profile for user. -->
<profile>default</profile>
<!-- Quota for user. -->
<quota>default</quota>6.启动clickhouse服务
sudo service clickhouse-server start7.迁移clickhouse数据

首先查看clickhouse数据存在哪里
cat /etc/clickhouse-server/config.xml
查看<!-- Path to data directory, with trailing slash. -->这一行后的path路径
路径默认是/var/lib/clickhouse
压缩data,metadata,store文件夹数据(data:数据库名,metadata:数据库表sql,store:数据)
tar -zcvf 文件名
tar -xvf 文件名.gaz
解压覆盖掉新服务器中clickhouse的/var/lib/clickhouse路径下三个文件
启动clickhouse服务
sudo service clickhouse-server start
接下来就连接测试下吧到此卸载,安装,升级,迁移clickHouse数据库都已讲解完成啦!
若文章有误或疑问,欢迎大家留言讨论~
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