[LON-CAPA-admin] Server hung

[Gabriel Friedmann]

Most of these reports sound like low-level issues such as 
hardware/kernel/driver.

I had a recent hang-up/crash that was probabbly due some out of 
control processes, and i have logs from the hours before which 
detail the demise of the system.

Are all of these new problems?  Were they encountered with 
different versions of LON-CAPA?

-- Gabriel Friedmann


On Wed, 18 Feb 2004, Jim Maxka wrote:

> Hon-Kie -- My system hung two weeks ago.  I've pored through all the log 
> files that Gerd and Nathan have mentioned and I can only see that logs 
> stopped around 12:15 including cron log and nothing seemed to work until 
> I powered the server back on at 13:15. 
> 
> I would be interested if you found some diagnostic.  Thanks --jim
> 
> Nathan Schoenack wrote:
> 
> >I'm not able to really decipher the log files, but if you check in the
> >/var/log directory, there's dmesg and messages that can maybe give you some
> >clues.  I'd say hunt through those files for a start.  dmesg will show
> >messages from the boot sequence.
> >
> >I don't think this would hang your system, but if your hard drive is full,
> >your server won't allow any logins.  The login page should still display,
> >though.  I went through that a while ago.  Do a 'df' from the / directory to
> >see your hard drive usage.
> >
> >That's about all I know...I leave the rest to the professionals.
> >
> >Nathan
> >
> >
> >
> >-----Original Message-----
> >From: lon-capa-admin-admin at mail.lon-capa.org
> >[mailto:lon-capa-admin-admin at mail.lon-capa.org]On Behalf Of H. K. Ng
> >Sent: Wednesday, February 18, 2004 9:26 AM
> >To: lon-capa-admin at mail.lon-capa.org
> >Subject: [LON-CAPA-admin] Server hung
> >
> >
> >Hi,
> >
> >This morning my main server hung up twice within 1 hr. By hung I meant, the
> >students could not even get to the main login page. Also, I cannot ssh it.
> >Any suggestions where I should look for clues as to why it hung?
> >
> >Thanks,
> >hk
> >
> >
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> >
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> >  
> >
> 
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