Clickhouse learning (II) Clickhouse stand-alone installation

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Fast installation

preparation

Turn off firewall

 Turn off firewall :
systemctl stop firewalld.service
 View firewall status :
systemctl status firewalld.service
 Enable disable firewall :
systemctl disable firewalld.service

CentOS Remove the limit on the number of open files

stay limits.x Add information under the two files

[[email protected] ~]# vi /etc/security/limits.conf 

* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072

[[email protected] ~]# vi /etc/security/limits.d/20-nproc.conf 
* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072

Distribute the configured files to the other two machines

Installation dependency

All three machines should be installed

[[email protected] ~]# yum install -y libtool

[[email protected] ~]# yum install -y *unixODBC*

CentOS Cancel SELINUX

modify /etc/selinux/config Medium SELINUX=disabled Restart after

Distribution machine

install

The official website says there are two installation methods , One is yum install , One is rpm Package installation

Here I use rpm Package installation
rpm Download address
We need the following four bags

Distribute it to other machines

install rpm package

[[email protected] clickhouse]# rpm -ivh *.rpm

Here are the settings clickhouse Customer service password

Check rpm Is the installation successful

[[email protected] clickhouse]# rpm -qa|grep clickhouse

rpm The default installation path of the package is /etc

Modify the configuration file

[[email protected] clickhouse]# vi /etc/clickhouse-server/config.xml

Distribute documents

start-up ClickHouse

start-up server

Since the single machine mode is used, it is OK to start the service on one machine

[[email protected] clickhouse-server]# systemctl start clickhouse-server

No auto start
All three machines should be set

[[email protected] clickhouse-server]# systemctl disable clickhouse-server

Use client Connect server

[[email protected] clickhouse-server]# clickhouse-client -m

Change the default port

[[email protected] ~]# vi /etc/clickhouse-server/config.xml

Restart after modification clickhouse

[[email protected] ~]# systemctl restart clickhouse-server

After the modification, you have to specify the port number for login

[[email protected] ~]# clickhouse-client --port 9876

Simple usage

• -m: It means that you can wrap , With ; For the end
• --query “sql sentence ”: Direct operation sql Statements need not enter the customer service terminal , similar hive -e The function of
• -h hostname: Allow other hosts to connect