My Symfony website has just started to show the following error:
ErrorException: Warning: session_start(): open (/tmp/sess_4h4kjh4ui4h478h48h44g02,O_RDWR) failed:No space left on device(28) in /var/www/website/symfony/src/symfony/component/HttpFoundation/SessionStorage/NativeSessionStorage.php line 87
I believe this is because the servers /tmp directory is on another partition which is full. What is the best thing to do in this situation? My server never gets rebooted so is there a manual way to delete these files? Or perhaps there is a way to increase its partition size?
Will removing these tmp files stop my website from working?