Re: ..dead ext3 journals, was: Nagios on Debian
On Wed, 3 Sep 2003 10:47:22 -0700,
"Jeremy T. Bouse" <jbouse@debian.org> wrote in message
<[🔎] 20030903174721.GB23421@UnderGrid.net>:
> On Wed, Sep 03, 2003 at 07:00:42PM +0200, Arnt Karlsen wrote:
> > On Wed, 3 Sep 2003 08:22:22 -0700,
> > "Jeremy T. Bouse" <jbouse@debian.org> wrote in message
> > <[🔎] 20030903152222.GA23194@UnderGrid.net>:
> >
> > > On Wed, Sep 03, 2003 at 04:55:53PM +0200, Arnt Karlsen wrote:
> > > > On Tue, 2 Sep 2003 09:48:40 -0700,
> > > > "Jeremy T. Bouse" <jbouse@debian.org> top posted in message
> > > > <[🔎] 20030902164839.GC20588@UnderGrid.net>:
> > > >
> > > > > Nagios itself is necessary... Also I've worked out the
> > > > > dependencies so that Nagios can be setup in a distributed
> > > > > fashion as documented in the Nagios docs where you only need
> > > > > the central server to have a web server installed... It didn't
> > > > > make sense to have it "recommend" the plugins but "depend" on
> > > > > the web server which meant you couldn't install nagios as a
> > > > > probe-only server with no web interface and installing Nagios
> > > > > without the plugins doesn't make much sense at all...
> > > >
> > > > .."a web server" == "an Apache webserver"? There are _several_
> > > > out there, even some lightweight...
> > > >
> > >
> > > Well it's put as "apache | apache-ssl | httpd" which should
> > > allow any web server package to be used however the packaging at
> > > this time only knows how to try and configure itself to run on
> > > apache or apache-ssl...
> >
> > ..ah, so with boa or monkey webservers I just have to figure out
> > config stuff myself. ;-)
> >
> Well I'm not the official Nagios maintainer I'm just working on
> a NMU for it to get the plugins package working since maintainer
> hasn't had time to work on it... I also don't run boa or monkey
> webservers so I'm the last person you'd want trying to figure out the
> config stuff :)
..easiest way is fire it up from http://damnsmalllinux.org/ ;-)
> > > By changing debian/control so that it "Suggests" the web server
> > > rather than depends on it you could setup a distributed monitoring
> > > system with Nagios as listed on the Nagios documentation[1]. Also
> > > it made more sense to change the "Depends" to "nagios-plugins |
> > > netsaint-plugins (>= 1.2.9.4-7)" rather than as a "Suggests" or
> > > "Recommends" as Nagios doesn't make much sense without them...
> > >
> > > Regards,
> > > Jeremy
> > >
> > > [1]http://nagios.sourceforge.net/docs/1_0/distributed.html
> >
> > ..thanks, while I got your attention: there _are_ ways to monitor
> > ext3 and other journalling fs'es for journalling failures? Had a
> > few ext3 go ro on /var and /home and trigging a kernel panic is
> > usually overkill, especially on raid-1, I would have expected the
> > "journal demon" bail out the "bad disk" and do fsck and restart
> > the journal and resync etc, but with Red Hat 7.3-9 and Debian, it's
> > "at best" "errors=remount-ro".
> >
> This could be handled by Nagios in theory... I'm not aware of
> any plugin at this time that checks journal status but I'm sure one
..anything else that checks fs journal status?
> could be written and with the assistance of a properly written event
> handler script auto-correct the solution... In the production systems
> I'm runing Nagios in we have some event handlers which restart hung
> processes before they cause problems...
..cool, urls?
--
..med vennlig hilsen = with Kind Regards from Arnt... ;-)
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.
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