Clickhouse notes 03-- grafana accesses Clickhouse

1 Introduce

Grafana Have strong chart panel display ability , Use Grafana After that, users can create 、 Explore and share all data . If you need to pass Grafana Search Warrior ClickHouse data , You need to install a plug-in to connect ClickHouse, And then you can use it ClickHouse data .
This article mainly introduces how to do it in ClickHouse Install plug-ins in and connect ClickHouse data , And pass grafana To show the data in the table .

2 Install the test

precondition ：
You can refer to clickhouse note 01– Rapid deployment clickhouse To install a set ClickHouse
You can refer to k8s note 12–grafana Configuration and common use of To quickly deploy a set grafana

1. find & install ClickHouse
   Server Admin->Plugins -> Search for ClickHouse , then install that will do
   
   
2. Data source add clickhouse
   Fill in as needed url port and The account number and password are ok
   
   
3. Generate charts based on data
   newly build Pannel,Data source choice CK-local,Query Type choice SQL Editor, Enter the following sql The following chart can be seen from the query statement

   SELECT county, count(county) as count FROM uk_price_paid2 
   group by county 
   order by count desc 
   LIMIT 10;
   

   

3 Monitoring clusters

Recently, I read the articles of netizens Grafana Realization clickhouse monitor （linux+mac+windows Detailed explanation of three platforms ） Discover that you can quickly monitor ClickHouse colony , Then I tested , The effect is really good , Then post the core steps in this section , So that we can learn later

1. download dashboard grafana-clickhouse-datasource/versions/1.1.2/download?os=linux&arch=amd64 or grafana-clickhouse-datasource/versions/1.1.2/download?os=linux&arch=arm64
2. Unpack and import to grafana, Then you can see the corresponding monitoring panel , As shown in the figure below ：

cluster-analysis.json  
data-analysis.json  
query-analysis.json

4 matters needing attention

1. Grafana Required in sql Inquire about , Need familiarity sql Basic usage , Not suitable for non developers .

5 explain

Software environment ：
ClickHouse 22.2.2.1
Grafana v8.5.2
Reference documents ：
Connecting Grafana to ClickHouse
clickhouse note 01– Rapid deployment clickhouse
k8s note 12–grafana Configuration and common use of
Grafana Realization clickhouse monitor （linux+mac+windows Detailed explanation of three platforms ）