Apache Monitoring

The Apache HTTP Server, also known as Apache HTTPd, is a commonly used web server software. Its wide usage has been due to its easy customizable feature and being open source.

The first plugin added for a server monitor is free. After that, each plugin monitor is charged at $1/month. Each plugin can have upto 25 attributes.

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Monitor Apache Web Server Performance

Monitoring Apache servers is critical to keep a check on their performance and be aware of degradation issues and bottlenecks. Use our ready-to-install plugin integration and see real time performance trends and historical metrics, all in a single dashboard.

Apache Monitoring

Performance Metrics

Requests per Second

req_per_sec records the total number of HTTP requests the web server is processing per second.

Busy Workers

Use the metric busy_workers to get the total number of processes actively processing an HTTP request

Idle Workers

idle_workers is the total number of idle workers/idle processes waiting for an HTTP request. If you have very few or no idle processes, it means your server is using up all the processes and new requests have to be on hold until the older requests are completed.

Uptime

The metric uptime gets the total amount of time the server has been up and running.

Bytes per Second

bytes_per_sec records the total amount of data the web server is transferring per second.

CPU Load

Use the metric cpu_load and get the total percentage of CPU used by the web server.

Bytes per Request

The average number of bytes being transferred per HTTP request is obtained using the metric bytes_per_req.

Total Accesses

The total number of accesses on the server is monitored using the metric total_accessess.

Setup

Prerequisites

Ensure the latest version of the Site24x7 Linux Server Monitoring agent is installed in the server where you plan to run the plugin.
Status module mod_status should be enabled for the server to be available at http://localhost:80/server-status. Learn how to do this.
Ensure AppLogs is enabled to view log related metrics.

Create a folder with the name 'apache'.
Download the "apache.py" file from our GitHub repository and place it in the 'apache' folder. wget https://raw.githubusercontent.com/site24x7/plugins/master/apache/apache.py
Update the file with your Status URL for monitoring apache. By default, we have enabled it to be:
http://localhost:80/server-status?auto
Move the 'apache' folder to the Site24x7 Linux agent plugin directory '/opt/site24x7/monagent/plugins/'.

The agent will automatically execute the plugin within five minutes and send performance data to the Site24x7 data center.

Log in to Site24x7 and go to Server > Plugin Integrations > click on the name of the plugin monitor. You will be able to view performance charts and set thresholds for the various performance metrics.

To run this plugin in Windows, refer steps in this article.

The agent will automatically execute the plugin within five minutes and send performance data to the Site24x7 data center.

Verify Plugin Output

Manually execute the plugin script using the following command and verify its output: python apache.py

Troubleshooting

Plugin Contribution

Feel free to contribute to our existing plugin and come up with suggestions or feedback on our Community.