PHP FPM

Use this Splunk Observability Cloud integration for the Collectd PHP-FastCGI Process Manager FPM monitor. See benefits, install, configuration, and metrics

The Splunk Distribution of OpenTelemetry Collector uses the Smart Agent receiver with the collectd/php-fpm monitor type to monitor PHP-FastCGI Process Manager (FPM) using the pool status URL.

This integration is only available on Kubernetes and Linux.

Benefits

After you configure the integration, you can access these features:

View metrics. You can create your own custom dashboards, and most monitors provide built-in dashboards as well. For information about dashboards, see View dashboards in Splunk Observability Cloud.
View a data-driven visualization of the physical servers, virtual machines, AWS instances, and other resources in your environment that are visible to Infrastructure Monitoring. For information about navigators, see Use navigators in Splunk Infrastructure Monitoring.
Access the Metric Finder and search for metrics sent by the monitor. For information, see Search the Metric Finder and Metadata Catalog.

Installation

Follow these steps to deploy this integration:

Deploy the Splunk Distribution of OpenTelemetry Collector to your host or container platform:
- Install on Kubernetes
- Install on Linux
Configure the monitor, as described in the Configuration section.
Restart the Splunk Distribution of OpenTelemetry Collector.

Install PHP

To configure the PHP-FPM service itself to expose status metrics, follow these steps:

Activate the status path. See the PHP documentation for more information.

Configure access through the web server. The following example shows how to configure access for NGINX:

location ~ ^/(status|ping)$ {
  access_log off;
  fastcgi_pass unix:/run/php/php-fpm.sock;
  include fastcgi_params;
  fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}

Restart both the web server and PHP-FPM.

Make sure that the URL you provide to reach the FPM status page through your web server ends in ?json. This returns the metrics as json, which this plugin requires.

Configuration

To use this integration of a Smart Agent monitor with the Collector:

Include the Smart Agent receiver in your configuration file.
Add the monitor type to the Collector configuration, both in the receiver and pipelines sections.
- See how to Use Smart Agent monitors with the Collector.
- See how to set up the Smart Agent receiver.
- For a list of common configuration options, refer to Common configuration settings for monitors.
- Learn more about the Collector at Get started: Understand and use the Collector.

Example

To activate this integration, add the following to your Collector configuration:

receivers:
  smartagent/ collectd/php-fpm:
    type: collectd/php-fpm
    ... # Additional config

Next, add the monitor to the service.pipelines.metrics.receivers section of your configuration file:

service:
  pipelines:
    metrics:
      receivers: [smartagent/collectd/php-fpm]

Advanced configuration example

See the following config options:

receivers:
  smartagent/ collectd/php-fpm:
    type: collectd/php-fpm
    host: localhost
    port: 80
    useHTTPS: true # will be ignored
    url: "http://{{.host}}:{{.port}}/fpm-status?json"
    ... # Additional config

Configuration settings

The following table shows the configuration options for collectd/php-fpm:


Option	Required	Type	Description
`host`	no	`string`	The host name of the web server. For example, `127.0.0.1`.
`port`	no	`integer`	The port number of the web server. For example, `80`. The default value is `0`.
`useHTTPS`	no	`bool`	Whether the monitor connects to Supervisor using HTTPS instead of HTTP. The default value is `false`.
`path`	no	`string`	The scrape URL for Supervisor. The default value is `/status`.
`url`	no	`string`	URL or Go template that to be populated with the `host`, `port`, and `path` values.
`name`	no	`string`	The `plugin_instance` dimension. It can take any value.

Metrics

The following metrics are available for this integration:

https://raw.githubusercontent.com/signalfx/splunk-otel-collector/main/internal/signalfx-agent/pkg/monitors/collectd/php/metadata.yaml

Notes

To learn more about the available in Splunk Observability Cloud see Metric types.
In host-based subscription plans, default metrics are those metrics included in host-based subscriptions in Splunk Observability Cloud, such as host, container, or bundled metrics. Custom metrics are not provided by default and might be subject to charges. See Metric categories for more information.
In MTS-based subscription plans, all metrics are custom.
To add additional metrics, see how to configure extraMetrics in Add additional metrics.

Troubleshooting

If you are a Splunk Observability Cloud customer and are not able to see your data in Splunk Observability Cloud, you can get help in the following ways.

Available to Splunk Observability Cloud customers

Submit a case in the Splunk Support Portal.
Contact Splunk Support.

Available to prospective customers and free trial users

Ask a question and get answers through community support at Splunk Answers.
Join the Splunk #observability user group Slack channel to communicate with customers, partners, and Splunk employees worldwide. To join, see Chat groups.

Documentation