---
title: PHP_FPM pool metricset
description: This is the pool metricset of the PHP_FPM module. This is a default metricset. If the host module is unconfigured, this metricset is enabled by default...
url: https://www.elastic.co/elastic/docs-builder/docs/3016/reference/beats/metricbeat/metricbeat-metricset-php_fpm-pool
products:
  - Beats
  - Metricbeat
applies_to:
  - Elastic Cloud Serverless: Generally available
  - Elastic Stack: Generally available
---

# PHP_FPM pool metricset
This is the `pool` metricset of the PHP_FPM module.
This is a default metricset. If the host module is unconfigured, this metricset is enabled by default.

## Fields

For a description of each field in the metricset, see the [exported fields](https://www.elastic.co/elastic/docs-builder/docs/3016/reference/beats/metricbeat/exported-fields-php_fpm) section.
Here is an example document generated by this metricset:
```json
{
    "@timestamp": "2019-03-01T08:05:34.853Z",
    "event": {
        "dataset": "php_fpm.pool",
        "duration": 115000,
        "module": "php_fpm"
    },
    "metricset": {
        "name": "pool",
        "period": 10000
    },
    "php_fpm": {
        "pool": {
            "connections": {
                "accepted": 18,
                "listen_queue_len": 0,
                "max_listen_queue": 0,
                "queued": 0
            },
            "name": "www",
            "process_manager": "dynamic",
            "processes": {
                "active": 1,
                "idle": 1,
                "max_active": 1,
                "max_children_reached": 0,
                "total": 2
            },
            "slow_requests": 0,
            "start_since": 3589,
            "start_time": 1551792028
        }
    },
    "service": {
        "address": "127.0.0.1:55555",
        "type": "php_fpm"
    }
}
```