[Building Sakai] [Deploying Sakai] [Testing Sakai] Test & Quizzes Tool Errors and Bugs.

[Naira Farooq]

Dear Karen,
Yes, 166 Students performed the exam concurrently there were 3 quizzes/Exams
containing 60 MCQs Each that loaded concurrently for Sections A,B, and C.
There were 4 different Labs where students were seated.

We have got issues in:
. When the time is close to the end, the timer restarted. Can I know what
action the students have performed? What link/button they have clicked? Did
he log out and relog in?
No, Students tried to submit the exam and some students timeout occured and
instead of submitting the exam system restarted the timer.
2. Student got some system error log. Can I know what that log about?
I am unable to retrieve that log of error stack trace :( But I know one
thing that this error occurred quite frequently. almost after every 2
minutes. and the test used to start from the first question rather than from
the same question. then students had to jump to the required question.
3. Student got data discrepancy error. Did students get this during submit?
This error can happen when the backend server submit the assessment before
students submit it.

No data discrepancy did not happen at time of submission. It came to very
few students but during exam when they clicked the next button.

There is another issue that our CPUs get so muck load when we load the exam
Why is that so? what should be done? New hardware requirement?

--
Regards
Naira Farooq | Software Engineer
National University of Computer and Emerging Sciences
A.K. Brohi Road H11/4 Islamabad 44000 Pakistan
Phone: +92-51-111-128-128 Ext 344



On Mon, Sep 12, 2011 at 11:47 AM, Karen Tsao <ktsao at stanford.edu> wrote:

> Hi Naira,
>
> You have mentioned couple different scenarios. Let me summarize them here
> and please correct me if I am wrong.
>
> 1. When the time is close to the end, the timer restarted. Can I know what
> action the students have performed? What link/button they have clicked? Did
> he log out and relog in?
> 2. Student got some system error log. Can I know what that log about?
> 3. Student got data discrepancy error. Did students get this during submit?
> This error can happen when the backend server submit the assessment before
> students submit it.
>
> The only timed assessment issue we fixed after 2.7 is
> https://jira.sakaiproject.org/browse/SAM-1184. Please take a look and see
> if that looks like one of your scenario.
>
> Are the 166 students taking the exam at the same time? We(Stanford) haven't
> had timed exam with 166 concurrent students. It'll be good if other schools
> can share their experience.
>
> Thanks,
> Karen
>
>
> On Sun, Sep 11, 2011 at 9:38 PM, Naira Farooq <nairafarooq at gmail.com>wrote:
>
>> Dear All,
>>
>> We are facing issues in Test & Quizzes tool. We have deployed Sakai 2.7.1.
>> We had  MCQs based midterm exam on Sakai. the strength of class was 166
>> students. and our architecture of system is:
>>
>> 3 application servers with  specs of (4 CPUs of Xion Server each. 2.5 GB
>> RAM each, 1 GB dedicated Network Card)
>> 1 access server (With 4 CPUs of Xion Server, 4 GB RAM, 1 GB dedicated
>> Network Card)
>> During Exam we faced a lot of problems.
>>
>> The exam was timed assessment and students faced the problem that when
>> they were about to end or tried to submit the exams suddenly timer restarted
>> to full time. this happened in Last 10 minutes of exam, and some students
>> faced problem that the timer suddenly ended however there was some time
>> remaining.
>>
>> Students were doing exam and after few minutes system used to generate
>> error bug report students submitted the report and log out then re-log in
>> and few students got the exam from the same question where they left however
>> some students got the exam started from the 1st question?
>>
>> There was also a data discrepancy error. Can some one let us know what
>> this error is? and when it occurs?
>>
>> Please anyone let us know why was that happening and what was the reason
>> behind it? and can anyone let us know from where can I check the log that
>> how many times the system generated the bug report and get the stack trace
>> from Sakai.
>>
>> Please help in Regard. Am I missing some settings of Sakai? Because there
>> was no load on the systems and access server but still we faced a lot of
>> problems during exam.
>>
>>  --
>> Regards
>> Naira Farooq | Software Engineer
>> National University of Computer and Emerging Sciences
>> A.K. Brohi Road H11/4 Islamabad 44000 Pakistan
>> Phone: +92-51-111-128-128 Ext 344
>>
>>
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