Installation and configuration of [basic services] [database] Clickhouse

brief introduction

Installation environment ：CentOS 7.x or RedHat

Method / step

One ：yum install

sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://packages.clickhouse.com/rpm/clickhouse.repo
sudo yum install -y clickhouse-server clickhouse-client

sudo /etc/init.d/clickhouse-server start

clickhouse-client 
#  Or use  "clickhouse-client --password"  If you want to set a password 


#  Other commands  

• Open Internet access
  In the default service configuration file /etc/clickhouse-server/config.xml Release Internet binding

<listen_host>0.0.0.0</listen_host>

• Other relevant orders

#  start-up 
sudo -u clickhouse clickhouse-server --config-file=/etc/clickhouse-server/config.xml
#  restart 
sudo systemctl restart clickhouse-server

Two ：Docker install

docker pull clickhouse/clickhouse-server

Start the server instance with custom configuration

docker run -d --name clickhouse-server8123 \
-p 8123:8123 -p 9000:9000 \
--ulimit nofile=262144:262144 \
-v /docker/clickhouse8123/clickhouse-server/conf/config.xml:/etc/clickhouse-server/config.xml \
-v /docker/clickhouse8123/clickhouse-server/conf/users.xml:/etc/clickhouse-server/users.xml \
-v /docker/clickhouse8123/clickhouse-server/log:/var/log/clickhouse-server:rw \
clickhouse/clickhouse-server

Other relevant orders

#  Start the delete container command 
$ docker stop some-clickhouse-server
$ docker rm some-clickhouse-server

3、 ... and ： Connect and configure

3.1 DBeaver Use

Connect ClickHouse Databases generally use two ways DBeaver and Web side Tabix

3.1 Web side Tabix（ The official recommendation ）

docker search clickhouse
docker pull spoonest/clickhouse-tabix-web-client

 start-up Tabix
docker run -d -p 8080:80 spoonest/clickhouse-tabix-web-client

• Open the visualization page
  

1. HTTP clients The default port number of 8123 Running SQL Request in http://127.0.0.1:8123（ hold ip Change to your own IP）
   

2. Be careful , stay Play UI The user name is filled with default values in , The password text field remains empty . If the default user is assigned a password , Please enter it into password Field .

3. Try running the query . for example , The name of the predefined database is returned below :

SHOW databases

4. single click RUN Button , The response is displayed in Play UI The bottom half :
   

Four : Normal operation

4.1 Create table statement , Be sure to specify the engine

create table tb_test(
	id Int8 ,
	name String
) engine=Memory;

4.2 Array An array type

create table test_array(
	name String ,
	hobby Array(String)
) engine=Log;

insert into test_array values(' Yu Qian ',[' smoking ',' Drink ',' Hot head ']);
insert into test_array values(' Monitor of the class ',[' smoking ',' Yu Qian ']);

--  see 
SELECT * from test_array

4.3 Enum Enumeration type

create table test_enum(
	id UInt8 ,
	color Enum('RED'=1,'GREEN'=2 ,'BLUE'=3)
)engine=Memory ;
--  Undeclared values cannot be inserted 
insert into test_enum values(1,'RED'),(3,'BLUE') ;
insert into test_enum values(4,'PINK');  

4.4 Tuple Yuanzu type

create table test_tuple(
	name String ,
	info Tuple(String,String,UInt8)
)engine=Memory ;

insert into  test_tuple values('zss',('M','coder',23)),('lss',tuple('F','coder',33));

4.5 Nested Nested Type

create table test_nested(
	uid Int8 ,
	name String ,
	hobby Nested(
	  id Int8 ,
	  hname1 String ,
	  hname2 String
)
)engine=Memory ;

insert into test_nested values (1,'zss',[1,2,3],[' eat ',' drink ',' sleep '],['eat','drink','sleep']);
insert into test_nested values (2,'lss',[1,2],[' eat ',' drink '],['eat','drink']);

4.6 Special type

Special types include Domain 、IPv6、IPv4（ Storage ip Address ） and Nulltable type

4.6.1 IPv4 type

create table tb_ip2(
	id Int8 ,
	ip IPv4 
)engine=Memory ;

insert into tb_ip2 values(1,'192.167.34.2') ;

4.6.2 Nulltable type

create table tb_nulltable  (
	id Int8 ,
	age Nulltable(Int8)  
)engine=Memory ;

Installation completed

• Follow up learning materials
  ClickHouse Operation guide

Reference material & thank

[1] Official website
[2] Github - ClickHouse