forked from https://github.com/symfony/symfony
This PR was merged into the 3.3 branch.
Discussion
----------
[Cache] Always require symfony/polyfill-apcu to provide APCuIterator everywhere
| Q | A
| ------------- | ---
| Branch? | 3.3
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| License | MIT
**TL;DR: when APCuIterator is not available (i.e. PHP 5.6 + APCu 4.0.7), the APC cache handling is broken.**
When [the app initializes](https://github.com/symfony/symfony/blob/master/src/Symfony/Bundle/FrameworkBundle/Resources/config/cache.xml#L31) one of [the APC caches](https://github.com/symfony/symfony/blob/master/src/Symfony/Bundle/FrameworkBundle/Resources/config/cache.xml#L14-L28), it tries to [retrieve its namespace flag key](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/ApcuTrait.php#L42). If it can't, [it clears its namespaced cache](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/ApcuTrait.php#L43) and [adds its flag key back](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/ApcuTrait.php#L44).
But [when APCuIterator is not usable](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/ApcuTrait.php#L74), **the app [flushes the whole cache each time](https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Cache/Traits/ApcuTrait.php#L76)**, preventing all the APC caches to retrieve their own flag key, resulting in a **perpetual full APC cache flush**.
TODO:
- [x] add test => https://travis-ci.org/symfony/symfony/jobs/269383629#L3334
See https://github.com/symfony/symfony/pull/24008
Commits
-------
|
||
---|---|---|
.composer | ||
.github | ||
src/Symfony | ||
.editorconfig | ||
.gitignore | ||
.php_cs.dist | ||
.travis.yml | ||
appveyor.yml | ||
CHANGELOG-3.0.md | ||
CHANGELOG-3.1.md | ||
CHANGELOG-3.2.md | ||
CHANGELOG-3.3.md | ||
composer.json | ||
CONTRIBUTING.md | ||
CONTRIBUTORS.md | ||
LICENSE | ||
phpunit | ||
phpunit.xml.dist | ||
README.md | ||
UPGRADE-3.0.md | ||
UPGRADE-3.1.md | ||
UPGRADE-3.2.md | ||
UPGRADE-3.3.md | ||
UPGRADE-4.0.md |
Symfony is a PHP framework for web applications and a set of reusable PHP components. Symfony is used by thousands of web applications (including BlaBlaCar.com and Spotify.com) and most of the popular PHP projects (including Drupal and Magento).
Installation
- Install Symfony with Composer or with our own installer (see requirements details).
- Symfony follows the semantic versioning strictly, publishes "Long Term Support" (LTS) versions and has a release process that is predictable and business-friendly.
Documentation
- Read the Getting Started guide if you are new to Symfony.
- Try the Symfony Demo application to learn Symfony in practice.
- Master Symfony with the Guides and Tutorials, the Components docs and the Best Practices reference.
Community
- Join the Symfony Community and meet other members at the Symfony events.
- Get Symfony support on Stack Overflow, Slack, IRC, etc.
- Follow us on GitHub, Twitter and Facebook.
Contributing
Symfony is an Open Source, community-driven project with thousands of contributors. Join them contributing code or contributing documentation.
Security Issues
If you discover a security vulnerability within Symfony, please follow our disclosure procedure.
About Us
Symfony development is sponsored by SensioLabs, led by the Symfony Core Team and supported by Symfony contributors.