How to Enable Alerts When Load Exceeds Threshold?
When working with a computer or server, you may encounter a situation where the system load becomes too high. To be informed about such a problem in a timely manner and take action, you need to enable alerts when the load exceeds a certain threshold. Let's see how to do it.
First, you need to install a resource monitoring utility. One of the popular tools is "sar", which collects statistical information about system performance. Install sar on your server with the following command:
sudo apt install sysstat
After installing sar, you need to configure it to track the load. To do this, add the following line to the "/etc/cron.d/sysstat" file:
* * * * * root /usr/lib/sa/sa1 1 1
Now sar will collect statistics every minute. To receive alerts when the load exceeds the threshold, you need to configure notifications. To do this, add the email address to which notifications will be sent to the "/etc/sysconfig/sysstat" file. For example:
MAILTO="admin@example.com"
Now, when the server load exceeds the set thresholds, you will receive notifications at the specified email address. This will allow you to respond to problems in a timely manner and prevent serious consequences.
Don't forget to periodically check the alert settings and their correct operation. Also, monitor changes in the server load and take the necessary measures in a timely manner to optimize system performance.
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