Rainbow plug-in extension: monitor MySQL based on MySQL exporter

MySQLD Exporter Plug ins are standard based MySQLD Exporter Realization .Rainbond Self contained Prometheus The monitoring system rbd-monitor Will collect Exporter Data in , And display it through the monitoring panel . Users can customize the indicators that show which key performance data , This is surveillance Mysql The best choice for database services .

install Mysql-Exporter plug-in unit

Click... On the left in the team view plug-in unit tab , Go to my plug-in page . Choose to install from the store / New plug-in .

Search the open source app store for Mysql-exportor , Click Install to install the plug-in into the current team .

Existing Mysql The plug-in page of the service component can Opening MySQLD Exporter plug-in unit .

After opening the plug-in , Check the configuration , confirm DATA_SOURCE_NAME (MySQL Connection information ) Whether it is right . meanwhile , Also confirm the setting of time zone and monitored Mysql Whether the service components are consistent . The configuration in the figure represents the use of Asia/Shanghai The time zone ,Mysql Service components can use the same environment variable configuration to declare time zones .

After confirmation , According to the prompt to update Mysql Service components , You can start collecting MySQLD Exporter Indicators provided .

Management monitoring point

Click... On the top right of the business monitoring panel Management monitoring point , Monitoring point information can be defined , This information defines the source of monitoring indicators .

MySQLD Exporter The plug-in has defined the configuration of a set of monitoring points , This set of configurations contains the following elements , These elements are required ：

• Configuration name ： Customize the name of this group of configurations
• Collection task name ： Customize
• route ： Source path of indicators , according to Exporter Different designs , You need to fill in the appropriate path
• port ：Exporter Listening port , Default listening 9104, The user needs to be Mysql Main service on 9104 Internal service of port .
• Collection interval ： How often are indicators collected

Check the monitor

This plug-in has been configured with common monitoring charts by default , Click one button to import , Use mysqld-exportor The scheme can generate charts .

In turn, click monitor —— Business monitoring You can see the corresponding monitoring chart ：

The default monitoring chart shows MySQLD Business monitoring data items include ：

Monitoring item
The slow query
OPS
Disk read rate
Disk write rate
Byte receive rate
Byte send rate
InnoDB Cache pool size
Connection thread peak
Running thread peak
Average running threads
Table Lock lmmediate
Table Lock Waited

Add a custom monitoring chart

If we want to add a monitoring chart , To show the current number of connections to the database , Please follow the following steps ：

Click Add chart

Enter a new title , And the corresponding query criteria mysql_global_status_threads_connected after , Click on Inquire about . If it returns to the chart normally , Then the query conditions are correct . The definition of the title should be as clear as possible , And specify the unit if necessary .

Click on add to after , You can add the new monitoring chart to the business monitoring panel . The newly added monitoring chart will be placed at the end .

visit Mysql Of service components 9104 port , Can be in /metrics Under the path , View all monitoring items available for mapping .

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