which folder is growing that large inside the cache ? Are you able to determine it ?

I don't know if this is the case, but the directory used by the HTTP cache is usually the one that grows indefinitely. See #4871 for related issues and PR attempts.

@stof i cleared the cache now, can reply you later. @javiereguiluz is not my case, dont use http cache (use render_esi to render blocks but not cache http properly)

No doctrine cache.

This is a large system (253 tables 23 proprietary bundles) but is used by few users (around 300) and few external daily accesses.

It's worrying me because soon you will have a lot of external access

@cirovargas did you manage to investigate more details about this issue? (such as the folder/s that grow the most)

twig and annotation. if ia modify a template, class or configuration the symfony ever reload.

This happens on any windows/apache machine.

Permissions on this folders is granted for 'All' read/write and full control

Some logs:

[2016-10-08 15:29:54] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\OutOfMemoryException: "Error: Out of memory (allocated 2097152) (tried to allocate 32768 bytes)" at C:\app\apache_php\apache2\htdocs\ouvidoria\var\cache\prod\twig\e6\e60d73545b68ff8dd395d7b0f7ba16aa49cb4ac30765667898e7aa0f0027347d.php line 60 {"exception":"[object] (Symfony\Component\Debug\Exception\OutOfMemoryException(code: 0): Error: Out of memory (allocated 2097152) (tried to allocate 32768 bytes) at C:\app\apache_php\apache2\htdocs\ouvidoria\var\cache\prod\twig\e6\e60d73545b68ff8dd395d7b0f7ba16aa49cb4ac30765667898e7aa0f0027347d.php:60)"} []

[2016-10-08 15:29:55] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\OutOfMemoryException: "Error: Out of memory (allocated 2097152) (tried to allocate 397312 bytes)" at C:\app\apache_php\apache2\htdocs\ouvidoria\vendor\doctrine\dbal\lib\Doctrine\DBAL\Driver\PDOStatement.php line 91 {"exception":"[object] (Symfony\Component\Debug\Exception\OutOfMemoryException(code: 0): Error: Out of memory (allocated 2097152) (tried to allocate 397312 bytes) at C:\app\apache_php\apache2\htdocs\ouvidoria\vendor\doctrine\dbal\lib\Doctrine\DBAL\Driver\PDOStatement.php:91)"} []

[2016-10-08 16:50:05] request.CRITICAL: Uncaught PHP Exception Symfony\Component\Debug\Exception\OutOfMemoryException: "Error: Out of memory (allocated 2097152) (tried to allocate 16384 bytes)" at C:\app\apache_php\apache2\htdocs\ouvidoria\vendor\symfony\symfony\src\Symfony\Component\Form\ChoiceList\Factory\CachingFactoryDecorator.php line 65 {"exception":"[object] (Symfony\Component\Debug\Exception\OutOfMemoryException(code: 0): Error: Out of memory (allocated 2097152) (tried to allocate 16384 bytes) at C:\app\apache_php\apache2\htdocs\ouvidoria\vendor\symfony\symfony\src\Symfony\Component\Form\ChoiceList\Factory\CachingFactoryDecorator.php:65)"} []

@cirovargas can you try to upgrade to Symfony 3.2? Symfony 3.1 doesn't receive bug fixes anymore.

Also, are you able to answer stof's questions?

which folder is growing that large inside the cache ? Are you able to determine it ?

One more test you could do is to try a fresh installation of standard edition. This will rule out (or confirm) the possibility there's something in your code causing the leaks.

Could be fixed by #21973, please confirm.

Rereading, maybe not in fact :) Please upgrade to 3.2 then report again as suggested.

ping :)

Closing it due to lack of feedback. Please upgrade to Symfony 3.3 (to be released next week) and reopen this issue if the issue persists. Thanks!

Using Symfony 3.4 now, my cache folder grew up 246GB

Which folder inside cache/dev or cache/prod grows so much?

Maybe it's cache/test/ (that's the one which grows the most in my apps ... and it's because of the profiling data: var/cache/test/profiler/).