[LON-CAPA-admin] Issues

[Stuart Raeburn]

Hi,

> Tue Nov 15 05:26:57 2011 (21584): Command received: ekey, encoded = 0
> Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode:

That is odd.
You should only see that level of detail in lond.log if you have:

my $DEBUG=1;

set in /home/httpd/perl/lond

I don't see it showing up in /home/httpd/perl/lond.log otherwise.

If you are sure that:

my $DEBUG-0;

is set (and you have restarted loncontrol), then it seems you should  
look at the Debug subroutine in lond, which should be:

sub Debug {
     my $message = shift;
     if($DEBUG) {
	&logthis($message);
     }
}

To stop the excessive logging, regardless of the value of $DEBUG you  
could change it to:

sub Debug {
     my $message = shift;
     return;
}

and restart loncontrol

Stuart Raeburn
MSU LON-CAPA group


Quoting "Lucas, Mark" <lucasm at ohio.edu>:

> I'm having some issues here I may need help with.
>
> We're working towards finals starting tomorrow, and last night I had  
>  one of my machines
> go catatonic regarding LON-CAPA and httpd. I was still able to get   
> in via ssh.
> This seems to be correlated with memory problems.
>
> I restarted LON-CAPA (loncontrol and httpd) on that machine and did   
> the same on
> my balancer, and it seemed to be fine.
>
> Just about an hour ago I started having problems again. There seems   
> to be a significant
> increase in memory usage - the slope changed pretty dramatically as   
> usage picked up.
>
> While the machines are being used pretty steadily, I'm wondering if   
> there's anything regarding
> downloading of large pdf files or the like that may somehow be   
> causing grief. They're not
> working on homework as much as they are pouring over lecture notes.
>
> I also found the lond.log file on my library to be huge (3Gb+?) last  
>  night. While there typically
> isn't much in lond.log, and I have debug set to zero, I'm getting a   
> bunch of messages like those shown
> below. Is this a sign of poor communications between the machines   
> developing under the load?
> Is debug somehow getting turned on?
>
> I'm at a bit of a loss for the behavior, and I definitely have some   
> students pissed at me right
> now.
>
> Mark
>
>
> ============================================================
> Tue Nov 15 05:26:57 2011 (21584): Command received: sethost, encoded = 0
> Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode:  
>  0 ClientType 1Tue Nov 15 05:26:57 2011 (21584): Dispatching to   
> handler sethost oucapa2
> Tue Nov 15 05:26:57 2011 (21584): Request was sethost:oucapa2  Reply was ok
> Tue Nov 15 05:26:57 2011 (21584): get_request: Request = ekey
>
> Tue Nov 15 05:26:57 2011 (21584): Main: Got ekey
> Tue Nov 15 05:26:57 2011 (21584): process_request: ekey
>
> Tue Nov 15 05:26:57 2011 (21584): Command received: ekey, encoded = 0
> Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode:  
>  0 ClientType 3Tue Nov 15 05:26:57 2011 (21584): Dispatching to   
> handler ekey
> Tue Nov 15 05:26:57 2011 (21584): Request was ekey:  Reply was   
> 7643ACBACEB8A7BAE8DBCE811563Tue Nov 15 05:26:57 2011 (21584):   
> get_request: Request =   
> sethost:oucapa2:put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eprobl
> em___ohiou%2fOUp200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1
>
> Tue Nov 15 05:26:57 2011 (21584): Main: Got   
> sethost:oucapa2:put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2f
> OUp200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1
>
> Tue Nov 15 05:26:57 2011 (21584): process_request:   
> put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp200lib
> %2fmath%2ftriangle_comp1%2eproblem___comefrom=1
>
> Tue Nov 15 05:26:57 2011 (21584): Command received: put, encoded = 0
> Tue Nov 15 05:26:57 2011 (21584): Matched dispatch hash: mustencode:  
>  0 ClientType 1
> Tue Nov 15 05:26:57 2011 (21584): Dispatching to handler put   
> ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp
> 200lib%2fmath%2ftriangle_comp1%2eproblem___comefrom=1
> Tue Nov 15 05:26:57 2011 (21584): Request was   
> put:ohiou:OUp200lib:nohist_resevaldata:author%2fmeap%2fcalculus%2fprecalcreview%2ftrig02%2dRadiansToDegrees%2eproblem___ohiou%2fOUp200lib%2fma
> th%2ftriangle_comp1%2eproblem___comefrom=1  Reply was ok
> Tue Nov 15 05:27:09 2011 (21508): get_request: Request = exit
>
> Tue Nov 15 05:27:09 2011 (21508): Main: Got exit
> ========================================================================
>
>
>
> --
> Mark Lucas  email: lucasm at ohiou.edu<mailto:lucasm at ohiou.edu>
> 252D Clippinger Lab phone: (740)597-2984
> Department of Physics and Astronomy fax: (740)593-0433
> Ohio University
> Athens, OH 45701
>