PHP7 fpm + Symfony 2.8 - 3.1, using memcached but failed to write session data to file

Question

Migrating symfony apps to php 7 with no success.

Error messages:

Symfony 2.8:

Warning: session_write_close(): Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions)

Symfony 3.1:

Warning: session_regenerate_id(): Session object destruction failed. ID: user (path: /var/lib/php/sessions)

Problem

Now from the message I would guess php is trying to write sessions to files.

I use memcached handler for sessions, it is running and works with php 5.6.
If I use native_file handler - everything works.

I do not know how to make any sense from this. All answers I found to similar problems include switching from native_file to memcached (already using it), changing user and/or permissions for session dir (does not matter?), updating session handler to return true from some methods (updated and checked).

How do I debug this?

What returns dump(ini_get('session.save_handler')); command ? — pécé
– pécé, Commented Aug 22, 2016 at 9:38
Well, some magic happened... Dumped save_handler, it displayed user, changed to native_file and to memcached again - now it works! Not sure what happened, but other app on same server also started to work, nothing was changed, updated or anything. Will do more testing. — Aurelijus Rozenas
– Aurelijus Rozenas, Commented Aug 24, 2016 at 11:29
So I did not get to the bottom of this because in the end we just switched to redis. It works fine for php 5.6 and 7.1 and symfony 2.8-3.2. — Aurelijus Rozenas
– Aurelijus Rozenas, Commented May 26, 2017 at 13:50

Rafał Przetakowski · Accepted Answer · 2016-08-25 05:47:43Z

1

Use
$ sudo service memcached start

answered Aug 25, 2016 at 5:47

Rafał Przetakowski

663 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Aurelijus Rozenas Over a year ago

Well memcached is definitely running, no need for that. As I said, It worked with PHP 5.6.

David Paul Over a year ago

That was the root of the problem on my docker container.. not sure what caused this issue to start happening all of a sudden, but installing memcached and starting the service fixed the problem, thank you!

Manfred Radlwimmer · Accepted Answer · 2017-06-09 09:00:12Z

-2

Set

php.auto_start=1

in php.ini

edited Jun 9, 2017 at 9:00

Manfred Radlwimmer

13.4k13 gold badges55 silver badges65 bronze badges

answered Jun 9, 2017 at 8:39

lxmp

1

Collectives™ on Stack Overflow

PHP7 fpm + Symfony 2.8 - 3.1, using memcached but failed to write session data to file

Error messages:

Problem

How do I debug this?

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

Error messages:

Problem

How do I debug this?

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related