---
title: "Fpm error logs"
date: "2024-02-14T06:18:38+00:00"
summary: "Understand and troubleshoot PHP-FPM issues with our guide to FPM error logs. Learn how to parse log entries, identify severity levels, and resolve infrastructure-level problems in your PHP applications."
image:
type: "page"
url: "/acquia-cloud-platform/fpm-error-logs"
id: "d663e1a0-3f40-4340-ae09-c14a6792e9fd"
---

The _Fpm error log_ (`fpm-error.log`) records infrastructure-level issues with Fpm’s process management in PHP. It is closely related to the [Fpm access log](/acquia-cloud-platform/monitor-apps/logs/fpm-access), which records all requests to PHP, and the [PHP error log](/acquia-cloud-platform/monitor-apps/logs/php-error), which records application-level issues encountered while processing a request. The Fpm error log only handles web requests; command-line requests are logged in the PHP error log.

For a list of the log files handled by Cloud Platform, including accessing these log files, log file retention, and their locations, see [About Cloud Platform logging](/acquia-cloud-platform/monitor-apps/logs).

Note for log forwarding users

Acquia’s [log forwarding](/acquia-cloud-platform/monitor-apps/logs/forwarding) feature adds information to the beginning of each line that is forwarded to an external service. For more information, see [File formats in forwarded log files](/acquia-cloud-platform/monitor-apps/logs/forwarding/files).

Parsing the log file
--------------------

The following line is a representative example of the data written into your website’s Fpm error log:

    [04-Jan-2017 18:45:13] NOTICE: [pool alphabeta] child 20069 exited with code
    0 after 3832.234353 seconds from start

Each of the items in the Fpm error log is noted in the following table, along with its description:

Position

Data

Description

0

`[04-Jan-2017 18:45:13]`

The date and time of the request.

1

`NOTICE`

The issue severity. Possible values include `ALERT`, `ERROR`, `WARNING`, `NOTICE`, and `DEBUG`.

2

`[pool alphabeta]`

The Fpm pool in which the error occurred.

3

_All other information in the line_

The message, which will vary from line to line.