What is Percona Monitoring and Management(PMM)?

Percona Monitoring and Management (PMM) is an open-source platform for managing and monitoring MySQL, PostgreSQL, and MongoDB performance. It provides a comprehensive set of tools for monitoring, querying, and visualizing the performance metrics of your database infrastructure. PMM offers features such as query analytics, real-time monitoring, alerting, and historical analysis, helping you to optimize database performance and troubleshoot issues effectively.

How to use this Tool?

To use Percona Monitoring and Management (PMM) effectively, you'll need to follow these general steps:

• Installation:

• Configuration:

• Adding Database Instances:

• Accessing the PMM Dashboard:

• Monitoring and Analysis:

• Query Analytics:

• Alerting:

• Historical Analysis:

• Customization:

• Documentation and Support:

How to set up?

docker pull percona/pmm-server:2.41.2-el7

docker volume create pmm-data 

docker run--detach--restart always --publish 443:443 -v pmm-data:/srv --name pmm-server  pmm-server:2.41.2-el7

Then add below command on client DB.

MySQL> CREATE USER 'pmm'@'localhost' IDENTIFIED BY 'pass' WITH MAX_USER_CONNECTIONS 10;
MySQL> GRANT SELECT, PROCESS, SUPER, REPLICATION CLIENT, RELOAD ON *.* TO 'pmm'@'localhost';

Then add below command on client server. And add Mysql.

yum install pmm2-client -y        ## CentOS, Fedora, and Red Hat Enterprise Linux (RHEL).

or

apt-get install pmm2-client        ## Debian itself, Ubuntu, and derivatives like Linux Mint

or 

rpm -ivh pmm2-client-2.41.2-6.el7.x86_64.rpm        ## local in your server 

pmm-admin config --server-insecure-tls --server-url=https://admin:Indi@123@10.1.74.191:443

pmm-admin add mysql --username=pmm --password=Indi@123 --query-source=perfschema

Follow this blog properly you can configure Mysql for proper monitoring. If you are facing any query or problem then you can connect my social hendles and please DM me.

Resources:

• Percona documentation

• Percona RPM Package link

Thank you so much for reading 💖

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Note:- In this blog, I am showing every screenshot available So you can crate easily. But every screenshot shows a White color. The white color means this is a privacy policy I can not show the IP and Hostname of the server.

What is Grafana?

Grafana is an open-source platform designed for monitoring and observability, as well as for creating interactive and customizable dashboards for various data sources. It enables users to visualize and understand data from different systems, applications, and devices in real-time. Grafana is highly flexible and can be integrated with a wide range of data sources, making it a popular tool for monitoring and analyzing metrics and logs.

• Data Visualization and Dashboards:

• Data Sources:

• Querying and Alerting:

• Plugins and Integrations:

• Alerting and Notification:

• User Access Control:

• Templating and Variables:

How to Create a Memory Alert :

• Set Up Data Source: Ensure that you have a data source configured in Grafana that provides memory usage metrics. This could be a monitoring system like Prometheus, InfluxDB, or any other data source that collects memory-related metrics

  

• Create a Memory Usage Visualization: Build a visualization that shows memory usage over time. A common choice is a line chart or area chart where the x-axis represents time and the y-axis represents memory usage.

• You can press or right-click the mouse or press e on the keyboard.

• 

  Then open the dashboard. Then click the alert option and create an alert for this panel. Shown in given below 👇👇.

• 

  Create an Alert Rule: Alerts in Grafana are created based on alert rules. To set up an alert rule:

  a. Go to the dashboard that contains your memory usage visualization. b. Click on the panel options (three dots) in the top-right corner of the panel. c. Select "Edit." d. In the "Alert" tab of the panel editor, click on "Create Alert." e. Configure the alert rule, including the evaluation interval, condition (e.g., memory usage > threshold), and the thresholds you defined earlier.

• Then open this dashboard in this dashboard write the alert name

• 

  Then You can see all queries like a,b,c,d. You are focusing only on the B query. Because B query only shows the data of used memory shows the dashboard given below 👇👇. In white colour show vm or server IP or hostname. I can not see bcoz private.

• 

  Define Thresholds: Determine the memory usage thresholds that you want to set for your alert. For instance, you might want to set thresholds for "Warning" and "Critical" levels of memory usage.

• Then firstly create Reduce Function (Max). Then Input(B). Because only for use B query B say how much memory is used.

• Then Create Thresholds is above select and put the max value of used memory. You can put any highest value.

• In value use of byte So you can calculate gb to byte. Then press the Preview button and show normal (0) so successfully condition.

• 

  Alert evaluation behavior:- Then file folder name and then Evaluation group name file.

• 

  Save and Test: Save the alert rule configuration. You can manually trigger the alert rule by simulating the condition (e.g., by injecting mock data that exceeds the memory usage threshold) to ensure that the alerting mechanism is working as expected.

• 

  Configure Alert Notifications: Once the alert rule is set up, you need to specify how you want to be notified when the alert conditions are met:

  a. In the alert rule settings, find the "Notifications" section. b. Configure the notification channels you want to use, such as email, Slack, PagerDuty, etc. This might involve setting up notification channels in Grafana if you haven't done so already.

• 

• Then click the edit option and then file email and you can choose anyone you want to send mail to. I am configured to mail. file name then file email then save. You can check the notification tab to test button.

• 

How to create a Hard Disk Alert :

• In the Hard Disk alert click the dashboard shown in given below.

• 

• The same rule is followed like a Memory alert. Now move on direct query task. In the hard disk, only 1 query exited. So create an alert with only 1 query.

• 

  You can see a lot of mount points in this diagram. The white circle shows the mount point.

• 

• Then Click the builder option. And set device query. Because You are set of hard disk alert. You can face one problem. In hard disk lots of mount points are available. So You can devioce (!~) use. You hide all mount points and show only specific mount points when you want to alert the trigger.

• 

  Then click on the code option. Then write 100 because when you click the builder option the 100 value is automatically hidden. So you can write 100. Then click the preview option. You can see in the diagram show only one mount point.

• 

  Then create the folder name create the Evaluation group name then Save and Exit.

• 

Then You can create Memory and Hard Disk alerts in Grafana. If you are facing any query or problem then you can connect my social hendles and please DM me.

Resources:

• Grafana Documentation

• Grafana Alerts Documentaion

• What is Grafana and Overview

Thank you so much for reading 💖

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Catch me on my socials here: https://linktr.ee/anmol02