Quiz

Hi everyone, I did a search to see if this has been reported before but could not find something similar as the words 'quiz review' brought up several thousand posts. This Monday I got a ton of errors in the apache logs, with the message. I've replaced the IP Address and user name below to anonymize.

[Mon Sep 01 18:31:44 2014] [error] [client x.x.x.x] PHP Warning:  mysqli::mysqli() [<a href='mysqli.mysqli'>mysqli.mysqli</a>]: (08004/1040): Too many connections in /var/web/<sitename>/lib/dml/mysqli_native_moodle_database.php on line 384, referer: http://<sitename>/mod/quiz/review.php?attempt=117###

I cross checked our activity logs around the same time frame, and found huge number of log entries, for one user, doing the final quiz review for an exam in one of our courses.

I've reached out to them to try to find out what they saw on their end (if they were somehow mashing the refresh button or something else), but was curious to see if anyone had seen something like this before?

The user was able to complete the exam, and it looks like this only happened at the final submit step, as there are normal quiz attempts logged at normal time intervals before this.

The last normal actions logged before the spam were:

Then after the Quiz close attempt, it's 6 pages of the below. I've copied/pasted only one page.