[LON-CAPA-admin] Map not loaded error on Ub12
Stuart Raeburn
raeburn at msu.edu
Sun Dec 21 17:00:44 EST 2014
Hi Maged,
Ubuntu 12 uses LWP 6.0, so if you have included https in the entry for
the library server in /home/httpd/lonTabs/dns_hosts.tab on
uiuclibrary12, then the library server will need to have an SSL
certificate installed (which has been signed by a recognized signer,
e.g., InCommon), and the access servers will need to either (a) have
the ca-certificates package installed (sudo apt-get install
ca-certificates), or (b) have:
PERL_LWP_SSL_VERIFY_HOSTNAME=0
in /etc/environment
in order for the access server to be able to replicate content (such
as a course's default.sequence file) from the library server.
> The only strange thing, and I am not sure if relevant or not, the
> directory is trying to create is 5282125afdd416duiuclibrary1
In LON-CAPA a course number, such as "5282125afdd416duiuclibrary1"
ends with the lonHostID of the server where the session was running
for the user when he/she created the course. However, that part of
the course number does not need to match the lonHostID of the server
in your separate dev. cluster, just as long as the corresponding:
/home/httpd/lonUsers/uiuc/5/2/8/5282125afdd416duiuclibrary1/userfiles/default.sequence
file exists on the library server (uiuclibrary12) in the development cluster.
Stuart Raeburn
LON-CAPA Academic Consortium
Quoting "Abdel Messeh, Maged" <mmesseh at illinois.edu>:
> I also have checked the permissions on that directory and they seem OK:
>
> /home/httpd# ls -lRa html/userfiles/*
> html/userfiles/uiuc:
> total 16
> drwxr-x--- 4 www www 4096 Dec 19 15:32 .
> drwxr-xr-x 3 www www 4096 Dec 19 14:37 ..
> drwxr-x--- 2 www www 4096 Dec 19 15:32 5282125afdd416duiuclibrary1
> drwxr-x--- 2 www www 4096 Dec 19 14:37 974815464c84133uiuclibrary1
>
> html/userfiles/uiuc/5282125afdd416duiuclibrary1:
> total 8
> drwxr-x--- 2 www www 4096 Dec 19 15:32 .
> drwxr-x--- 4 www www 4096 Dec 19 15:32 ..
>
> html/userfiles/uiuc/974815464c84133uiuclibrary1:
> total 8
> drwxr-x--- 2 www www 4096 Dec 19 14:37 .
> drwxr-x--- 4 www www 4096 Dec 19 15:32 ..
>
>
> As all the processes on the access node are running as www:
>
> /home/httpd# ps -ef|grep -i apa
> root 3301 1 0 Dec19 ? 00:00:12 /usr/sbin/apache2 -k start
> www 4760 3301 0 06:25 ? 00:00:00 /usr/sbin/apache2 -k start
> www 4761 3301 0 06:25 ? 00:00:00 /usr/sbin/apache2 -k start
> www 4762 3301 0 06:25 ? 00:00:00 /usr/sbin/apache2 -k start
> www 4766 3301 0 06:25 ? 00:00:00 /usr/sbin/apache2 -k start
> www 4768 3301 0 06:25 ? 00:00:00 /usr/sbin/apache2 -k start
> www 5370 3301 0 09:56 ? 00:00:00 /usr/sbin/apache2 -k start
> www 5374 3301 0 09:56 ? 00:00:00 /usr/sbin/apache2 -k start
>
> /home/httpd# ps -ef|grep -i lon
> www 1451 1 0 Dec19 ? 00:00:00 /usr/bin/perl
> /home/httpd/perl/lonsql
> www 1452 1451 0 Dec19 ? 00:00:00 /usr/bin/perl
> /home/httpd/perl/lonsql
> www 1453 1451 0 Dec19 ? 00:00:00 /usr/bin/perl
> /home/httpd/perl/lonsql
> www 1454 1451 0 Dec19 ? 00:00:00 /usr/bin/perl
> /home/httpd/perl/lonsql
> www 1455 1451 0 Dec19 ? 00:00:00 /usr/bin/perl
> /home/httpd/perl/lonsql
> www 1531 1 0 Dec19 ? 00:00:00 lond: Starting
> accept Sun Dec 21 05:15:16 2014
> www 1540 1 0 Dec19 ? 00:00:00 lonc: Parent keeping
> the flock Sun Dec 21 05:10:12 2014
> www 1547 1 0 Dec19 ? 00:00:00 lonmaxima: Parent
> process, sleeping Fri Dec 19 14:34:39 2014
> www 1548 1547 0 Dec19 ? 00:00:00 lonmaxima: Accepting
> connections Fri Dec 19 14:34:43 2014
> www 1549 1547 0 Dec19 ? 00:00:00 lonmaxima: Accepting
> connections Fri Dec 19 14:34:43 2014
> www 1550 1547 0 Dec19 ? 00:00:00 lonmaxima: Accepting
> connections Fri Dec 19 14:34:43 2014
> www 1551 1547 0 Dec19 ? 00:00:00 lonmaxima: Accepting
> connections Fri Dec 19 14:34:43 2014
> www 1552 1547 0 Dec19 ? 00:00:00 lonmaxima: Accepting
> connections Fri Dec 19 14:34:43 2014
> www 1644 1 0 Dec19 ? 00:00:00 lonr: Parent
> process, sleeping Fri Dec 19 14:34:41 2014
> www 1645 1644 0 Dec19 ? 00:00:00 lonr: Accepting
> connections Fri Dec 19 14:34:42 2014
> www 1646 1644 0 Dec19 ? 00:00:00 lonr: Accepting
> connections Fri Dec 19 14:34:42 2014
> www 1647 1644 0 Dec19 ? 00:00:00 lonr: Accepting
> connections Fri Dec 19 14:34:42 2014
> www 1648 1644 0 Dec19 ? 00:00:00 lonr: Accepting
> connections Fri Dec 19 14:34:42 2014
> www 1649 1644 0 Dec19 ? 00:00:00 lonr: Accepting
> connections Fri Dec 19 14:34:42 2014
>
>
> The only strange thing, and I am not sure if relevant or not, the
> directory is trying to create is 5282125afdd416duiuclibrary1, which
> has the name of our old library server, that is uiuclibrary1 where
> we copied the data from? However, our new library server is
> uiuclibrary12, to which the above access node is trying to connect.
>
> Thanks,
>
> Maged
>
> -----Original Message-----
> From: lon-capa-admin-bounces at mail.lon-capa.org
> [mailto:lon-capa-admin-bounces at mail.lon-capa.org] On Behalf Of
> Bynum, Lee Hamilton
> Sent: Saturday, December 20, 2014 5:08 PM
> To: list about administration and system updating
> Subject: Re: [LON-CAPA-admin] Map not loaded error on Ub12
>
> While selecting a role in a course results in that error on the
> access servers, selecting an author space works just fine.
>
> Lee Bynum
> ________________________________________
> From: lon-capa-admin-bounces at mail.lon-capa.org
> [lon-capa-admin-bounces at mail.lon-capa.org] on behalf of Abdel
> Messeh, Maged [mmesseh at illinois.edu]
> Sent: Saturday, December 20, 2014 11:10 AM
> To: lon-capa-admin at mail.lon-capa.org
> Subject: [LON-CAPA-admin] Map not loaded error on Ub12
>
> Hi All,
>
> I have configured a test cluster, one standalone library and 2
> access nodes. I can work fine from the library, however when I work
> on the access nodes I get an error when I attempt to view a course:
>
> Map not loaded: The file
> /home/httpd/html/userfiles/uiuc/2m286089f12d4520auiucaccess1/default.sequence does not
> exist.
>
> In lonnet.log, I found:
> Fri Dec 19 15:02:38 2014 (1664): Userfile repcopy failed for
> uploaded/uiuc/2m286089f12d4520auiucaccess1/default.sequence
>
> Below is a directory listing:
>
> /home/httpd/html/userfiles# du -a
> 4 ./uiuc/5282125afdd416duiuclibrary1
> 4 ./uiuc/2m286089f12d4520auiucaccess1
> 4 ./uiuc/1H194910598fe5263uiucaccess2
> 4 ./uiuc/2u206861b7c7f547cuiuclibrary12
> 20 ./uiuc
> 24 .
>
> So the default.sequence does not get created for some reason.
>
> Thanks in advance for all your help.
>
> Maged
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