Install moosh
https://moodle.org/plugins/view.php?id=522
It's not really a moodle plugin but a command line utility for moodle.
Once it's installed and checked, let's see what's in course ID 141
From inside the moodle code directory anywhere, issue:
moosh -n course-info 141
The -n allows root user to execute rather than web service user.
You'll see something like this (my example done on course ID 10 in a Moodle):
Course ID: 10
No of contexts: 16
Context by level:
CONTEXT_MODULE (70): 16
Context by module:
assign (1): 2
lti (14): 1
page (15): 3
resource (17): 10
Number of role capability overwrites: 0
Role capability overwrites by context:
Number of local role assignments: 0
Locally assigned roles by context:
Number of enrolled users: 0
Users enrolled by role:
Number of groups: 0
Group statistics:
Min number of members in a group: 0
Max number of members in a group: 0
Avg number of members in a group: 0
Course modinfo size: 33733
Number of sections: 2
Section statistics:
Sections visible: 2
Sections hidden: 0
Min number of modules in a section: 0
Max number of modules in a section: 16
Avg number of modules in a section: 8
Number of grades: 0
Number of log entries: 65
Number of files: 10
Total file size: 8833144
Cache build time: 0.078015089035034
Dunno what we might see for your 141.
Also run:
moosh file-list course=141Still the error is DB related ... I wonder ...
How about also installing MySQLTuner.pl and run it.
https://github.com/major/MySQLTuner-perl
We might find some suggestions to tuning the DB that will help with the backup of this one course.
'spirit of sharing', Ken