# Cronjob problem **URL:** \ **Category:** Product Support\ **Created:** [November 26, 2016, 1:53am UTC](https://forum.mautic.org/t/cronjob-problem/6669 "2016-11-26T01:53:26Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![coolspot](https://avatars.discourse-cdn.com/v4/letter/c/f475e1/32.png) [@coolspot](https://forum.mautic.org/u/coolspot)\ **Post date:** [November 26, 2016, 1:53am UTC](https://forum.mautic.org/t/cronjob-problem/6669/1 "2016-11-26T01:53:26Z")
Loving Mautic guys! I am running the following cronjobs for my installation but they don’t always execute (unless reboot server/stop and start crons/restart or some like): It’s using ubuntu 16.07 + php7 0,15,30,45 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:segments:update --env=prod \> /dev/null 2\>&1 5,20,35,50 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:campaigns:rebuild --env=prod \> /dev/null 2\>&1 10,25,40,55 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:campaigns:trigger --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:emails:send --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:email:fetch --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:social:monitoring --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:iplookup:download --env=prod \> /dev/null 2\>&1 sometimes it works fine, and sometimes when I check cron status it says: s19684832 CRON[6356]: pam\_unix(cron:session): session opened for user root by (uid=0) s9684832 CRON[6357]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 CRON[6358]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 CRON[6359]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 PAM-CGFS[6357]: Failed to create a cgroup for user root s19684832 PAM-CGFS[6358]: Failed to create a cgroup for user root s19684832 CRON[6363]: (root) CMD (/usr/bin/php /var/www/mymaut/app/console mautic:email:fetch) s19684832 CRON[6361]: (root) CMD (/usr/bin/php /var/www/mymaut/app/console mautic:social:monitoring) s19684832 CRON[6357]: pam\_unix(cron:session): session closed for user root s19684832 CRON[6358]: pam\_unix(cron:session): session closed for user root these errors rotate position, but sometimes they just work fine and no error is displayed Could anybody please advice what to do- Logs are clear. Mautic log was reading some unrelated read/write error which I corrected by giving permission to sessions folder. ---
**Author:** ![coolspot](https://avatars.discourse-cdn.com/v4/letter/c/f475e1/32.png) [@coolspot](https://forum.mautic.org/u/coolspot)\ **Post date:** [November 26, 2016, 1:53am UTC](https://forum.mautic.org/t/cronjob-problem/6669/2 "2016-11-26T01:53:26Z")
Loving Mautic guys! I am running the following cronjobs for my installation but they don’t always execute (unless reboot server/stop and start crons/restart or some like): It’s using ubuntu 16.07 + php7 0,15,30,45 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:segments:update --env=prod \> /dev/null 2\>&1 5,20,35,50 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:campaigns:rebuild --env=prod \> /dev/null 2\>&1 10,25,40,55 \* \* \* \* /usr/bin/php /var/www/mymaut/app/console mautic:campaigns:trigger --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:emails:send --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:email:fetch --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:social:monitoring --env=prod \> /dev/null 2\>&1 - - - - - /usr/bin/php /var/www/mymaut/app/console mautic:iplookup:download --env=prod \> /dev/null 2\>&1 sometimes it works fine, and sometimes when I check cron status it says: s19684832 CRON[6356]: pam\_unix(cron:session): session opened for user root by (uid=0) s9684832 CRON[6357]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 CRON[6358]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 CRON[6359]: pam\_unix(cron:session): session opened for user root by (uid=0) s19684832 PAM-CGFS[6357]: Failed to create a cgroup for user root s19684832 PAM-CGFS[6358]: Failed to create a cgroup for user root s19684832 CRON[6363]: (root) CMD (/usr/bin/php /var/www/mymaut/app/console mautic:email:fetch) s19684832 CRON[6361]: (root) CMD (/usr/bin/php /var/www/mymaut/app/console mautic:social:monitoring) s19684832 CRON[6357]: pam\_unix(cron:session): session closed for user root s19684832 CRON[6358]: pam\_unix(cron:session): session closed for user root these errors rotate position, but sometimes they just work fine and no error is displayed Could anybody please advice what to do- Logs are clear. Mautic log was reading some unrelated read/write error which I corrected by giving permission to sessions folder.