Symptoms
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Plesk scheduled backups (local, FTP, cloud storage) do not run at a scheduled time.
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Cron job is executed correctly:
# grep backupmng /var/log/syslog | tail -n3
CRON[1329826]: (root) CMD ([ -x /opt/psa/admin/sbin/backupmng ] && /opt/psa/admin/sbin/backupmng >/dev/null 2>&1)Note: On RedHat based OS it can be seen in the
/var/log/cronfile while, on Debian based OS can be seen in/var/log/syslog
Cause
A new scheduled backup task does not start because of other stuck backup processes which are stuck (in this case, - from June, 20):
# ps auxfw | grep backupmng | grep -v grep
root 15212 0.0 0.0 4268 96 ? Ss jun20 0:00 _ /bin/sh -c [ -x /opt/psa/admin/sbin/backupmng ] && /opt/psa/admin/sbin/backupmng >/dev/null 2>&1
psaadm 15213 0.0 0.0 45064 596 ? S jun20 0:00 _ /opt/psa/admin/sbin/backupmng
psaadm 15216 0.0 0.0 45064 568 ? S jun20 2:07 _ /opt/psa/admin/sbin/backupmng
psaadm 15217 0.0 0.4 301544 19624 ? S jun20 0:01 _ /usr/bin/sw-engine -c /opt/psa/admin/conf/php.ini /opt/psa/admin/plib/backup/scheduled_backup.php --dump 12
root 15523 0.0 0.0 0 0 ? Z jun20 0:00 _ [pmmcli] <defunct>
root 15526 0.0 0.3 121476 13096 ? S jun20 0:00 _ /usr/bin/python -Estt /opt/psa/admin/sbin/pmmcli --pmmras-exec /opt/psa/tmp/prevIOHp2 --get-ftp-dump-list
root 15527 0.0 0.0 113852 1188 ? S jun20 0:00 _ /opt/psa/admin/bin/pmm-ras --get-ftp-dump-list --dump-storage=ext://one-drive-backup/subscription/23/
root 15822 0.0 0.4 375080 16904 ? S jun20 2:38 _ /usr/bin/sw-engine -c /opt/psa/admin/conf/php.ini /opt/psa/admin/sbin/backup_restore_helper --exte
Resolution
Debian-based OS
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Connect to the Plesk server via SSH
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Stop cron service:
# systemctl stop cron
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Kill these processes by their PID:
# kill -9 `ps auxfw | grep backupmng | grep -v grep | awk {'print $2'}`
-
Start cron sercive:
# systemctl start cron
-
Either wait until the next scheduled backup is launched or launch the process manually through the following command:
# /opt/psa/admin/sbin/backupmng
Warning: If the tasks are launched manually through the command above, all the pending scheduled backups will be launched at the same time. Consider this for resource usage.
RHeL-based OS
-
Connect to the Plesk server via SSH
-
Stop cron service:
# systemctl stop crond
-
Kill these processes by their PID:
# kill -9 `ps auxfw | grep backupmng | grep -v grep | awk {'print $2'}`
-
Start cron sercive:
# systemctl start crond
-
Either wait until the next scheduled backup is launched or launch the process manually through the following command:
# /usr/local/psa/admin/sbin/backupmng
Warning: If the tasks are launched manually through the command above, all the pending scheduled backups will be launched at the same time. Consider this for resource usage.