[LON-CAPA-admin] Auto enrolled timeout

[Stuart Raeburn]

Hon Kie,

One question is whether the separate program (which works correctly) was 
run as www, instead of root.  It should be run as root in order to 
reproduce the conditions underwhich localenroll::fetch_enrollment() is run.

When you use "Update Roster Now" in lonpopulate, the  
lonnet::fetch_enrollment_query() should result in a call to 
localenroll::fetchenrollment() from lonsql on the library server  - see 
lonsql::make_new_child().  You should check that lonsql is running.  
Look for messages in lonsql.log and lonsql_errors.

Also if you add any print STDERR statements in lonsql to debug what 
might be occurring you should find the corresponding output written to 
/home/httpd/perl/logs/lonsql_errors.  You'll need to restart loncontrol 
after adding any such debugging statements to 
localenroll::fetch_enrollment().  Note: the original decision to use 
lonsql here was motivated by a desire (in pre-loncnew days) to avoid 
tying up a lonc/lond connection while waiting for classlist data to be 
retrieved by localenroll::fetch_enrollment(). 

If you see a timeout then that means that lonnet::get_query_reply() did 
not find /home/httpd/perl/tmp/$queryid.end within 200 s, where $queryid 
is the value returned after submitting the fetchenrollment query in 
lonnet::fetch_enrollment_query()  In your example, $queryid was 
loncapa10.fsu.edu_2460_1146674707_2.

Stuart

H. K. Ng wrote:

> I just switched the library server and everything works fine except 
> for the autoenroll. It timeout as indicated by the message (below) in 
> lonnet.log. I can fetch the class list by running a separate program 
> so I know the connection and all the necessary components have been 
> installed. (The call routine in this program is the same as that in 
> localenroll.pm) I inserted some lines in sub fetch_enrollment 
> (localenroll.pm) to print out (to a file) the calls to the db and so 
> but nothing got printed out. It seems that the changes are not called. 
> Both loncontrol and httpd were restarted after making the changes. I 
> must have missed something. Any suggestions?
>
> Thanks,
> -hk
>
>
> Wed May  3 12:48:27 2006 (2453): fetch_enrollment_query error: 
> timeout:loncapa10.fsu.edu_2460_1146674707_2 for fsu fsudc for 
> loncapa10.fsu.edu_2460_1146674707_2 context: updatenow 
> 8y408217acc584425fsul1 maxtries: 1 tries: 1
> Wed May  3 12:48:27 2006 (2453): lonpopulate:update rosterfailed to 
> retrieve classlist data for 8y408217acc584425fsul1 at fsu by fsudc @ fsu: 
> error
>
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