php / php/php-src

PHP-FPM slow log entires should include the request URL

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#18,536 1 comment 4 reactions 0 assignees View on GitHub

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Feature SAPI: fpm
Dominant language
C
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Avg merge
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Merged PRs (30d)
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Description

Description

To my knowledge, it's not possible to configure PHP-FPM slow logs to contain the full request URL.

This is a major problem for web applications like WordPress that utilize a front-controller pattern, where every URL maps to a single PHP script, such as wordpress/index.php.

As far as I know, cross-referencing slow log timestamps with access log timestamps is the best workaround, which is tedious and impossible for high-traffic sites, as second granularity can be insufficient, and the subsecond timestamps of the slow log and access log may not match.

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by tracing PHP-FPM's slow-log generation and the request metadata available when a request is logged. Review how slow-log configuration is represented and define a testable output format for the full request URL; done means the slow log identifies the URL without timestamp cross-referencing.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, php
Domain
backend, observability
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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