概述：clickhouse是一个高性能的列式数据库，特点就是快快快，查询性能是mysql的100-1000倍，非常适合存储频繁写入的数据，比如：日志,用户事件记录。单表存储上亿甚至十几亿行数据库查询都是很快的。具体性能参考
https://clickhouse.yandex/benchmark.html 缺点：不能进行更新操作，不能删除单行数据（只能整表删除），没有事务。
1.配置好yum源
$ curl -s https://packagecloud.io/install/repositories/Altinity/clickhouse/script.rpm.sh | sudo bash
$ sudo yum -q makecache -y --disablerepo='*' --enablerepo='Altinity_clickhouse' #更新yum
$ sudo yum list 'clickhouse*' #检验是否配置好源
已加载插件：fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Altinity_clickhouse/signature | 836 B 00:00
Altinity_clickhouse/signature | 1.0 kB 00:00 ...
Altinity_clickhouse-source/signature | 819 B 00:00
Altinity_clickhouse-source/signature | 951 B 00:00 ...
已安装的软件包
clickhouse-client.x86_64 18.16.1-1.el6 @Altinity_clickhouse
clickhouse-common-static.x86_64 18.16.1-1.el6 @Altinity_clickhouse
clickhouse-compressor.x86_64 1.1.54336-3.el6 @Altinity_clickhouse
clickhouse-debuginfo.x86_64 18.14.15-1.el6 @Altinity_clickhouse
clickhouse-server.x86_64 18.16.1-1.el6 @Altinity_clickhouse
clickhouse-server-common.x86_64 18.16.1-1.el6 @Altinity_clickhouse
clickhouse-test.x86_64 18.16.1-1.el6 @Altinity_clickhouse
2.安装clickhouse
$ yum -y install clickhouse-server clickhouse-client
或者
$ yum -y install clickhouse-*
3.启动或者停止clickhouse-server
$ sudo /etc/init.d/clickhouse-server stop|start|restart
$ clickhouse-client --port=9001 #连接clickhouse-server
4.clickhouse配置文件
/etc/clickhouse-server/config.xml
/etc/clickhouse-server/users.xml
我这里的端口是9001 ,端口可以在/etc/clickhouse-server/config.xml 修改
4.远程连接
修改/etc/clickhouse-server/config.xml
去掉<listen_host>::</listen_host>注释
5.添加用户
修改/etc/clickhouse-server/users.xml
在<!-- Example of user with readonly access. -->上新增：
<netprobe>
<password>Wdkj@2017</password>
<networks incl="networks" replace="replace">
<ip>::/0</ip>
</networks>
<profile>default</profile>
<quota>default</quota>
</netprobe>
<ck>
<password_sha256_hex>967f3bf355dddfabfca1c9f5cab39352b2ec1cd0b05f9e1e6b8f629705fe7d6e</password_sha256_hex>
<networks incl="networks" replace="replace">
<ip>::/0</ip>
</networks>
<profile>readonly</profile> #只读
<quota>default</quota>
</ck>