Common Issues

PHP Session Filling up /tmp

When installing openlitespeed, you might run into an issue where the /tmp directory is full and has 100000 sess_ files from PHP.

This is due to the fact that there is no mechanism to remove these files on a regular basis. There is a mechanism within Ubuntu for apache and php-fpm but not openlitespeed. You can use the following commands to create a service that runs and clears out the files.

systemctl stop phpsessionclean.service
systemctl disable phpsessionclean.service
systemctl stop phpsessionclean.timer
systemctl disable phpsessionclean.timer
echo "*/30 * * * * root find -O3 '/tmp' -ignore_readdir_race -depth -mindepth 1 -name 'sess_*' -type f -cmin +180 -delete" > /etc/cron.d/openlitespeed-phpsessionclean

In the above code, the following occurs.

  1. The first 4 commands are to disable the phpsessionclean service and timer, which normally runs the /usr/lib/php/sessionclean script.

This is the contents of the phpsessionclean.service file

Description=Clean php session files

  1. The final command creates the /etc/cron.d/openlitespeed-phpsessionclean cronjob file, which runs every 30 minutes and deletes php sessions files that had their status changed more than 180 minutes ago.
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