clickhouse单机安装

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、准备

在/etc/security/limits.conf、/etc/security/limits.d/90-nproc.conf这2个文件的末尾加入一下内容：

[root@hadoop102 software]# vim /etc/security/limits.conf

在文件末尾添加：

* soft nofile 65536

* hard nofile 65536

* soft nproc 131072

* hard nproc 131072

[root@hadoop102 software]# vim /etc/security/limits.d/90-nproc.conf

在文件末尾添加：

* soft nofile 65536

* hard nofile 65536

* soft nproc 131072

* hard nproc 131072

重启服务器it -n 或者ulimit -a查看设置结果

[root@hadoop102 ~]# ulimit -n

65536

CentOS取消SELINUX

修改/etc/selinux/config中的SELINUX=disabled后重启

[root@hadoop102 ~]# vim /etc/selinux/config

SELINUX=disabled

2、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

3、安装clickhouse

$ yum -y install clickhouse-server clickhouse-client
或者
$ yum -y install clickhouse-*

4、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

5、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

6、远程连接

修改/etc/clickhouse-server/config.xml

去掉<listen_host>::</listen_host>注释

7、添加用户

修改/etc/clickhouse-server/users.xml

在上新增：

</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>
 