PHP-FPM extension
- Latest Dynatrace
- Extension
- Published Oct 27, 2025
Monitor the PHP-FPM status of your applications with this extension.
Monitor, gain insights, and troubleshoot your PHP-FPM with the advanced, high-performance FastCGI process manager 
PHP-FPM extension.
The extension automatically finds the PHP-FPM processes running on your host and queries the status endpoint they expose to capture the most relevant details of your deployment.
Get started
- Install OneAgent on your PHP-FPM process's virtual machine or server.
- Select in this same tile Add to environment to configure the extension.
- Find the extension in Dynatrace Hub to start the installation.
Requirements
- PHP-FPM process that runs on a supported Linux or Windows operating system.
- OneAgent version 1.285+
- Dynatrace version 1.285+
/statusendpoint correctly exposed by the PHP-FPM process.
Feature sets
When activating your extension using monitoring configuration, you can limit monitoring to one of the feature sets. To work properly the extension has to collect at least one metric after the activation.
In highly segmented networks, feature sets can reflect the segments of your environment. Then, when you create a monitoring configuration, you can select a feature set and a corresponding ActiveGate group that can connect to this particular segment.
All metrics that aren't categorized into any feature set are considered to be the default and are always reported.
A metric inherits the feature set of a subgroup, which in turn inherits the feature set of a group. Also, the feature set defined on the metric level overrides the feature set defined on the subgroup level, which in turn overrides the feature set defined on the group level.
Slow requests
| Metric name | Metric key | Description |
|---|---|---|
| Slow requests | php-fpm.slow_requests | — |
Processes
| Metric name | Metric key | Description |
|---|---|---|
| Active processes | php-fpm.active_processes | — |
| Total processes | php-fpm.total_processes | — |
Connections
| Metric name | Metric key | Description |
|---|---|---|
| Accepted connections | php-fpm.accepted_conn.count | — |
Listen queue
| Metric name | Metric key | Description |
|---|---|---|
| Waiting connections | php-fpm.listen_queue | — |
| Max number of waiting connections | php-fpm.listen_queue_len | — |
