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Subject: {Disarmed} [LON-CAPA-admin] {Disarmed} Finding large video files
From: "Clawson, James via LON-CAPA-admin" <lon-capa-admin () mail ! lon-capa ! org>
Date: 2021-09-06 19:20:19
Message-ID: BLAPR19MB4226E287BEE9E8D0419198CBE3D29 () BLAPR19MB4226 ! namprd19 ! prod ! outlook ! com
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Hello,
In discovering that the /home drive is full, I am now searching for files to delete.
Over the pandemic, we had a faculty member who decided to upload uncompressed video \
to his courses. One semester, one of the courses was cloned. I have gone through \
some of the courses, looking for these files to remove. What would be the best way \
to find large files (that belong only to his courses)? I can then decide if they \
need to be removed.
Thanks,
James Clawson
Laboratory Manger
University of South Carolina
Department of Physics and Astronomy
clawsonj@mailbox.sc.edu<mailto:clawsonj@mailbox.sc.edu>
________________________________
From: Lucas, Mark <lucasm@ohio.edu>
Sent: Monday, September 6, 2021 2:48 PM
To: Clawson, James <CLAWSONJ@mailbox.sc.edu>; list about administration and system \
updating <lon-capa-admin@mail.lon-capa.org>
Subject: Re: {Disarmed} [LON-CAPA-admin] {Disarmed} Re: Lots of errors...
James,
Stuart can suggest longer term solutions, but basically find a few log files that \
might be cleaned out and stop/start your web server and loncontrol on your library \
server. That should fix things.
/home/httpd/perl/logs sometimes has older log files. As well, if you have /var/logs \
on your home drive, you can probably find some space there.
Is the library server on a VM where you can grovel more space? (we just had to do \
that)
/home/httpd/lonUsers will probably be the largest culprit, and there is currently no \
graceful way to archive records.
Later,
Mark
> On Sep 6, 2021, at 2:39 PM, Clawson, James via LON-CAPA-admin \
> <lon-capa-admin@mail.lon-capa.org> wrote:
> /home is full.
>
>
>
> James Clawson
> Laboratory Manger
> University of South Carolina
> Department of Physics and Astronomy
> clawsonj@mailbox.sc.edu
>
> From: LON-CAPA-admin <lon-capa-admin-bounces@mail.lon-capa.org> on behalf of \
> Raeburn, Stuart via LON-CAPA-admin \
> <lon-capa-admin@mail.lon-capa.org>
> Sent: Monday, September 6, 2021 2:08 PM
> To: lon-capa-admin@mail.lon-capa.org <lon-capa-admin@mail.lon-capa.org>
> Subject: Re: [LON-CAPA-admin] Lots of errors...
>
> James,
>
> >
> > We are getting a lot of error reports similar to what is attached.
> >
>
> You might check to see whether the disk partition for /home is full (i.e, 100% \
> used) on your LON-CAPA library server. What does the command:
> df -h
>
> report?
>
> Stuart Raeburn
> LON-CAPA Academic Consortium
> ________________________________________
> From: Raeburn, Stuart <raeburn@msu.edu>
> Sent: Sunday, September 5, 2021 10:32 PM
> To: lon-capa-admin@mail.lon-capa.org
> Subject: Re: Lots of errors...
>
> James,
>
> I am able to transfer my user session on another LON-CAPA node in the network to \
> the sc access server, and the sc access server is able to retrieve information \
> about my courses etc.
> However, I am not able to then transfer my user session from the sc access server \
> to the sc library server. I am able to display the LON-CAPA course catalog for the \
> sc domain on both the sc access server and sc library server.
> Based on this I would conclude that the sc access server is able to connect to \
> other nodes in the LON-CAPA network (including the sc library server), but it seems \
> that the sc library server is not able to make a "LON-CAPA" connection back to my \
> home server.
> I don't know whether your campus firewall rules limit outbound connections for your \
> LON-CAPA library server to IP addresses outside the sc network, so I don't know \
> whether what I see currently is normal for your library server.
> From the command line, these commands (run on each server -- library and access)
>
> ps -ef |grep lond |grep sc
> ps -ef |grep lonc |grep sc
>
> should show whether there are connections between lonc (on the library node) and \
> lond on the access node), and vice versa.
> For the first one you should see something like
> lond: Listening to <sc hostID>
>
> For the second you should see something like:
> Connection count: 1 Retries remaining: 5
>
> In the error report from the errorhandler web form submitted by a student, the \
> error is:
> ... write error at /home/httpd/lib/perl//Apache/lonuserstate.pm line 541
>
> which I expect would be called when a course session was being loaded (after role \
> selection).
> There are log files in /home/httpd/perl/logs.
>
> >
> > Students normally log into the access server and have been reporting an issue
> > that homework submissions are not being taken or rejected.
> >
>
> Storage of a submission is considered operation "critical", so if a connection \
> cannot be made from the access server to the library server, any "delayed" \
> transactions will be queued, and completed when connectivity is restored. You will \
> find information about delayed transactions (destined for the library server) in \
> /home/httpd/perl/logs/lonnet.perm.log on the access server.
> If you have additional information to share, while troubleshooting, feel free to \
> contact me off-list.
> Stuart Raeburn
> LON-CAPA Academic Consortium
> ________________________________________
> From: LON-CAPA-admin <lon-capa-admin-bounces@mail.lon-capa.org> on behalf of \
> Clawson, James via LON-CAPA-admin \
> <lon-capa-admin@mail.lon-capa.org>
> Sent: Sunday, September 5, 2021 8:48 PM
> To: lon-capa-admin@mail.lon-capa.org
> Subject: [LON-CAPA-admin] Lots of errors...
>
> Hello,
>
> We are getting a lot of error reports similar to what is attached.
>
> On another (or possibly related) note:
>
> We are having login issues with our library server but not always the access one \
> (I've been able to get in most of the time). Students normally log into the access \
> server and have been reporting an issue that homework submissions are not being \
> taken or rejected. The screen returns to the same state as before answering (no \
> increase in submission attempts). I have verified this behavior. One thought I \
> had was that it could be that the access server is not communicating with the \
> library server (I don't have the knowledge yet to know how to check if this is true \
> or not), and something is wrong on the library server.
> As far as I can tell, this is behavior that started a few days ago (Thursday).
>
> Any help on where to start diagnosis is appreciated.
>
> James Clawson
> Laboratory Manger
> University of South Carolina
> Department of Physics and Astronomy
> clawsonj@mailbox.sc.edu<mailto:clawsonj@mailbox.sc.edu>
> _______________________________________________
> LON-CAPA-admin mailing list
> LON-CAPA-admin@mail.lon-capa.org
> MailScanner has detected definite fraud in the website at "protect2.fireeye.com". \
> Do not trust this website:MailScanner has detected definite fraud in the website at \
> "protect2.fireeye.com". Do not trust this \
> website:https://protect2.fireeye.com/v1/url?k=482cf89a-17b7c19f-482cb65b-86564cfb0d8 \
> 5-05a5963fe217332c&q=1&e=520bac02-9ae8-47fa-8eed-452b8fdd9144&u=http%3A%2F%2Fmail.lon-capa.org%2Fmailman%2Flistinfo%2Flon-capa-admin
> _______________________________________________
> LON-CAPA-admin mailing list
> LON-CAPA-admin@mail.lon-capa.org
> https://protect2.fireeye.com/v1/url?k=76595e1f-29c266e2-765910de-86254b3f9600-4a3851 \
> 64d474ba2e&q=1&e=d0cc3489-580e-4a39-8da8-6809aac80656&u=http%3A%2F%2Fmail.lon-capa.org%2Fmailman%2Flistinfo%2Flon-capa-admin
>
--
Mark Lucas
Professor of Instruction
Department of Physics and Astronomy (College of Arts and Sciences)/Ohio Honors \
Program (Honors College) 252D Clippinger Lab, Ohio University, Athens, OH 45701
email: lucasm@ohio.edu
phone: (740)597-2984
Pronouns: He, Him, His
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<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> Hello,</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> <br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> In discovering that the /home drive is full, I am now \
searching for files to delete.</div> <div style="font-family: Calibri, Arial, \
Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);"> <br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> Over the pandemic, we had a faculty member who decided to \
upload uncompressed video to his courses. One semester, one of the courses was \
cloned. I have gone through some of the courses, looking for these files to \
remove. What would be the best way to find large files (that belong only to \
his courses)? I can then decide if they need to be removed.</div> <div \
style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: \
rgb(0, 0, 0);"> <br>
</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> Thanks,</div>
<div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; \
color: rgb(0, 0, 0);"> <br>
</div>
<div id="Signature">
<div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; \
color:rgb(0,0,0)"> <span style="color:rgb(32,31,30); font-size:15px; \
text-align:start; background-color:rgb(255,255,255); display:inline!important">James \
Clawson</span><br style="color:rgb(32,31,30); font-size:15px; text-align:start; \
background-color:rgb(255,255,255)"> <span style="color:rgb(32,31,30); font-size:15px; \
text-align:start; background-color:rgb(255,255,255); \
display:inline!important">Laboratory Manger</span><br style="color:rgb(32,31,30); \
font-size:15px; text-align:start; background-color:rgb(255,255,255)"> <span \
style="color:rgb(32,31,30); font-size:15px; text-align:start; \
background-color:rgb(255,255,255); display:inline!important">University of South \
Carolina</span><br style="color:rgb(32,31,30); font-size:15px; text-align:start; \
background-color:rgb(255,255,255)"> <span style="color:rgb(32,31,30); font-size:15px; \
text-align:start; background-color:rgb(255,255,255); \
display:inline!important">Department of Physics and Astronomy</span><br \
style="color:rgb(32,31,30); font-size:15px; text-align:start; \
background-color:rgb(255,255,255)"> <a href="mailto:clawsonj@mailbox.sc.edu" \
target="_blank" rel="noopener noreferrer" style="margin:0px; font-size:15px; \
text-align:start; background-color:rgb(255,255,255)">clawsonj@mailbox.sc.edu</a><br> \
</div> </div>
</div>
</div>
<div>
<div id="appendonsend"></div>
<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; \
color:rgb(0,0,0)"> <br>
</div>
<hr tabindex="-1" style="display:inline-block; width:98%">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" \
style="font-size:11pt"><b>From:</b> Lucas, Mark <lucasm@ohio.edu><br> \
<b>Sent:</b> Monday, September 6, 2021 2:48 PM<br> <b>To:</b> Clawson, James \
<CLAWSONJ@mailbox.sc.edu>; list about administration and system updating \
<lon-capa-admin@mail.lon-capa.org><br> <b>Subject:</b> Re: {Disarmed} \
[LON-CAPA-admin] {Disarmed} Re: Lots of errors...</font> <div> </div>
</div>
<div class="BodyFragment"><font size="2"><span style="font-size:11pt">
<div class="PlainText">James,<br>
<br>
Stuart can suggest longer term solutions, but basically find a few log files that \
might be cleaned out<br> and stop/start your web server and loncontrol on your \
library server. That should fix things.<br> <br>
/home/httpd/perl/logs sometimes has older log files. As well, if you have /var/logs \
on your home<br> drive, you can probably find some space there.<br>
<br>
Is the library server on a VM where you can grovel more space? (we just had to do \
that)<br>
/home/httpd/lonUsers will probably be the largest culprit, and there is currently no \
graceful<br> way to archive records.<br>
<br>
Later,<br>
Mark<br>
<br>
<br>
> On Sep 6, 2021, at 2:39 PM, Clawson, James via LON-CAPA-admin \
<lon-capa-admin@mail.lon-capa.org> wrote:<br> > <br>
> /home is full.<br>
> <br>
> <br>
> <br>
> James Clawson<br>
> Laboratory Manger<br>
> University of South Carolina<br>
> Department of Physics and Astronomy<br>
> clawsonj@mailbox.sc.edu<br>
> <br>
> From: LON-CAPA-admin <lon-capa-admin-bounces@mail.lon-capa.org> on behalf \
of Raeburn, Stuart via LON-CAPA-admin <lon-capa-admin@mail.lon-capa.org><br> \
> Sent: Monday, September 6, 2021 2:08 PM<br> > To: \
lon-capa-admin@mail.lon-capa.org <lon-capa-admin@mail.lon-capa.org><br> > \
Subject: Re: [LON-CAPA-admin] Lots of errors...<br> > <br>
> James,<br>
> <br>
> ><br>
> > We are getting a lot of error reports similar to what is attached.<br>
> ><br>
> <br>
> You might check to see whether the disk partition for /home is full (i.e, 100% \
used) on your LON-CAPA library server. What does the command:<br> > <br>
> df -h<br>
> <br>
> report?<br>
> <br>
> Stuart Raeburn<br>
> LON-CAPA Academic Consortium<br>
> ________________________________________<br>
> From: Raeburn, Stuart <raeburn@msu.edu><br>
> Sent: Sunday, September 5, 2021 10:32 PM<br>
> To: lon-capa-admin@mail.lon-capa.org<br>
> Subject: Re: Lots of errors...<br>
> <br>
> James,<br>
> <br>
> I am able to transfer my user session on another LON-CAPA node in the network to \
the sc access server, and the sc access server is able to retrieve information about \
my courses etc.<br> > <br>
> However, I am not able to then transfer my user session from the sc access \
server to the sc library server. I am able to display the LON-CAPA course \
catalog for the sc domain on both the sc access server and sc library server.<br> \
> <br> > Based on this I would conclude that the sc access server is able to \
connect to other nodes in the LON-CAPA network (including the sc library server), but \
it seems that the sc library server is not able to make a "LON-CAPA" \
connection back to my home server.<br> > <br>
> I don't know whether your campus firewall rules limit outbound connections for \
your LON-CAPA library server to IP addresses outside the sc network, so I don't know \
whether what I see currently is normal for your library server.<br> > <br>
> From the command line, these commands (run on each server -- library and \
access)<br> > <br>
> ps -ef |grep lond |grep sc<br>
> ps -ef |grep lonc |grep sc<br>
> <br>
> should show whether there are connections between lonc (on the library node) and \
lond on the access node), and vice versa.<br> > <br>
> For the first one you should see something like<br>
> lond: Listening to <sc hostID><br>
> <br>
> For the second you should see something like:<br>
> Connection count: 1 Retries remaining: 5<br>
> <br>
> In the error report from the errorhandler web form submitted by a student, the \
error is:<br> > ... write error at /home/httpd/lib/perl//Apache/lonuserstate.pm \
line 541<br> > <br>
> which I expect would be called when a course session was being loaded (after \
role selection).<br> > <br>
> There are log files in /home/httpd/perl/logs.<br>
> <br>
> ><br>
> > Students normally log into the access server and have been reporting an \
issue<br> > > that homework submissions are not being taken or rejected.<br>
> ><br>
> <br>
> Storage of a submission is considered operation "critical", so if a \
connection cannot be made from the access server to the library server, any \
"delayed" transactions will be queued, and completed when connectivity is \
restored. You will find information about delayed transactions (destined for \
the library server) in /home/httpd/perl/logs/lonnet.perm.log on the access \
server.<br> > <br>
> If you have additional information to share, while troubleshooting, feel free to \
contact me off-list.<br> > <br>
> Stuart Raeburn<br>
> LON-CAPA Academic Consortium<br>
> ________________________________________<br>
> From: LON-CAPA-admin <lon-capa-admin-bounces@mail.lon-capa.org> on behalf \
of Clawson, James via LON-CAPA-admin <lon-capa-admin@mail.lon-capa.org><br> \
> Sent: Sunday, September 5, 2021 8:48 PM<br> > To: \
lon-capa-admin@mail.lon-capa.org<br> > Subject: [LON-CAPA-admin] Lots of \
errors...<br> > <br>
> Hello,<br>
> <br>
> We are getting a lot of error reports similar to what is attached.<br>
> <br>
> On another (or possibly related) note:<br>
> <br>
> We are having login issues with our library server but not always the access one \
(I've been able to get in most of the time). Students normally log into the \
access server and have been reporting an issue that homework submissions are not \
being taken or rejected. The screen returns to the same state as before \
answering (no increase in submission attempts). I have verified this \
behavior. One thought I had was that it could be that the access server \
is not communicating with the library server (I don't have the knowledge yet to know \
how to check if this is true or not), and something is wrong on the library \
server.<br> > <br>
> As far as I can tell, this is behavior that started a few days ago \
(Thursday).<br> > <br>
> Any help on where to start diagnosis is appreciated.<br>
> <br>
> James Clawson<br>
> Laboratory Manger<br>
> University of South Carolina<br>
> Department of Physics and Astronomy<br>
> clawsonj@mailbox.sc.edu<mailto:clawsonj@mailbox.sc.edu><br>
> _______________________________________________<br>
> LON-CAPA-admin mailing list<br>
> LON-CAPA-admin@mail.lon-capa.org<br>
> MailScanner has detected definite fraud in the website at \
"protect2.fireeye.com". Do not trust this website:MailScanner has detected \
definite fraud in the website at "protect2.fireeye.com". Do not trust this \
website:https://protect2.fireeye.com/v1/url?k=482cf89a-17b7c19f-482cb65b-86564cfb0d85- \
05a5963fe217332c&q=1&e=520bac02-9ae8-47fa-8eed-452b8fdd9144&u=http%3A%2F%2Fmail.lon-capa.org%2Fmailman%2Flistinfo%2Flon-capa-admin<br>
> _______________________________________________<br>
> LON-CAPA-admin mailing list<br>
> LON-CAPA-admin@mail.lon-capa.org<br>
> <a href="https://protect2.fireeye.com/v1/url?k=76595e1f-29c266e2-765910de-86254b3 \
f9600-4a385164d474ba2e&q=1&e=d0cc3489-580e-4a39-8da8-6809aac80656&u=http%3A%2F%2Fmail.lon-capa.org%2Fmailman%2Flistinfo%2Flon-capa-admin"><font \
color="red"><b>MailScanner has detected definite fraud in the website at \
"protect2.fireeye.com". Do <i>not</i> trust this website:</b></font> <font \
color="red"><b>MailScanner has detected definite fraud in the website at \
"protect2.fireeye.com". Do <i>not</i> trust this website:</b></font> \
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<br>
-- <br>
Mark Lucas<br>
Professor of Instruction<br>
Department of Physics and Astronomy (College of Arts and Sciences)/Ohio Honors \
Program (Honors College)<br> 252D Clippinger Lab, Ohio University, Athens, OH \
45701<br>
email: lucasm@ohio.edu<br>
phone: (740)597-2984<br>
Pronouns: He, Him, His<br>
<br>
<br>
<br>
<br>
<br>
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