I run an nginx server with 40 identical webapps on 40 different ports in 40 different PHP-FPM pools. Each pool is run on a separate user.
My sessions.save_path
in php.ini
is /tmp/php_sessions
. Let's say I first visit http://mywebsite.com:5007
. I can observe this file pop up in /tmp/php_sessions
:
-rw------- 1 www-data07 www-data07 0 jan. 17 00:35 sess_bb84gmtago2u33g1jmtbhdcu80
Then I visit http://mywebsite.com:5008
. In my browser, I can read this error
Warning: Unknown: open(/tmp/php_sessions/sess_bb84gmtago2u33g1jmtbhdcu80, O_RDWR) failed: Permission denied (13) in Unknown on line 0
Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp/php_sessions) in Unknown on line 0
I get that this is because the user www-data08
is trying to write to a file where only www-data07
has write permissions. But why doesn't www-data08
make it's own session data? How can I fix this?