Hello, Do we know if the automated backup script has been changed in Moodle 3.9?
It seems to me that automated backups are not run immediately anymore instead they are added as an adhoc task to be run while the normal cron is running.
In the past I was running automated backups from cli and since my Moodle site is big it would take 3-4 days to complete.
Now the automated backups are happening during normal cron execution as an adhoc task. We can verify that if we query adhoc table
SELECT *, FROM_UNIXTIME(nextruntime )
FROM mdl_task_adhoc mta
Where classname LIKE '%\core\task\course_backup_task%';
If what I described above is correct, I think is not a good implementation, since all other tasks on my site are being delayed (ie forum notifications) because backups are taking too long to finish.
EDIT: I believe my post relates to this forum post as well