[hobbit] wake up call

Tue May 20 17:37:44 CEST 2008

What most people suggest is having a local DNS server, on the Hobbitmon
server itself.

As this is happening at the same time every single day I don't believe DNS
would be the cause of the issue, though it is worth taking a look at until
another idea comes along.

On Tue, May 20, 2008 at 11:27 AM, Gavin Leonard <gleonard at progrexion.com>
wrote:

>  Happened again this morning.. so I am going to try a different dns
> server.
>
>
>
> -Gavin
>
>
>
> *From:* Phil Wild [mailto:philwild at gmail.com]
> *Sent:* Monday, May 19, 2008 10:38 PM
> *To:* hobbit at hswn.dk
> *Subject:* Re: [hobbit] wake up call
>
>
>
> Hmmm... bummer, there goes that theory... If you are using IP addresses,
> and you are still getting failures on these hosts, then dns is not involved.
> A ttl of five minutes is fairly worthless for a caching server. It only
> helps if it hits the same device within five minutes, as hobbit is pinging
> every five mins (default), you will most likely always be pulling from your
> master/slaves...
>
>
>
> Phil
>
> 2008/5/20 Josh Luthman <josh at imaginenetworksllc.com>:
>
> Well almost (good 99%) of my hosts have the testip tag, so it doesn't
> need to look up the names.  The things it does look up are 5m TTLs
>
> though.
>
>
>
> On 5/19/08, Phil Wild <philwild at gmail.com> wrote:
> > What is ttl set to for your domain? It would be interesting to see if the
> > issue reduces with a higher ttl. Another way to ensure this is not the
> area
> > of the issue would be to set the dns server up as a slave.
> >
> > Phil
> >
> > 2008/5/20 Josh Luthman <josh at imaginenetworksllc.com>:
> >
> >> That was someone's theory in a very large post about this issue in the
> >> past.  I did install a caching only named on the box and it did not
> >> fix the problem.
> >>
> >> Did relieve the stress of my other DNS server though :)
> >>
> >>
> >>
> >> On 5/19/08, Phil Wild <philwild at gmail.com> wrote:
> >> > Hi Josh,
> >> >
> >> > This doesn't relate to the apache error, it relates to your problem...
> >> This
> >> > is a theory...
> >> >
> >> > I am wondering if you are running a caching name server on your hobbit
> >> > installation? If not, I am wondering if the fping places too high a
> load
> >> on
> >> > your dns server and misses the occassional host. Even with a caching
> dns
> >> > server you may see the issue every time ttl expires.
> >> >
> >> > Phil
> >> >
> >> > 2008/5/20 Josh Luthman <josh at imaginenetworksllc.com>:
> >> >
> >> >> Gavin,
> >> >>
> >> >> I am having a very similar issue - though it is not every single day.
> >>  My
> >> >> issue is that every host (or almost all of the hosts) will have
> >> >> conn:red
> >> >> and
> >> >> then come back up ~60s later.  I just confirmed this weekend that it
> is
> >> >> not
> >> >> related the Via NIC (Using an Intel Pro/100 S now).
> >> >>
> >> >> An issue like that is almost always Apache related.  Can you post the
> >> >> errors in /var/log/httpd/error_log from this time period?
> >> >>
> >> >> Josh
> >> >>
> >> >>
> >> >> On Mon, May 19, 2008 at 3:26 PM, Gavin Leonard <
> gleonard at progrexion.com
> >> >
> >> >> wrote:
> >> >>
> >> >>>  Every morning at 7am I get pages from every host I monitor
> including
> >> the
> >> >>> display server,  that its connection recovered.. the it runs great
> for
> >> >>> the
> >> >>> next 23hrs.  looking at hobbit web page I see no down time nor do
> the
> >> >>> servers show any down time.  But when I click on the historical web
> >> link
> >> >>> to
> >> >>> see the info.. I get this.. I really love hobbit..  but I am not a
> Web
> >> >>> guy
> >> >>> at all and I think it might be apache related…
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> *Internal Server Error*
> >> >>>
> >> >>> The server encountered an internal error or misconfiguration and was
> >> >>> unable to complete your request.
> >> >>>
> >> >>> Please contact the server administrator, root at localhost and inform
> >> them
> >> >>> of the time the error occurred, and anything you might have done
> that
> >> may
> >> >>> have caused the error.
> >> >>>
> >> >>> More information about this error may be available in the server
> error
> >> >>> log.
> >> >>>  ------------------------------
> >> >>>
> >> >>> *Apache/2.0.54 (Yellowdog) Server at misery.pgx.local Port 80*
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> *Gavin Leonard*
> >> >>>
> >> >>> [image: cid:image001.gif at 01C856AD.922EF120]
> >> >>>
> >> >>> Director, Systems-Network Engineering
> >> >>>
> >> >>> *T*
> >> >>>
> >> >>>  801-828-1735
> >> >>>
> >> >>> *F*
> >> >>>
> >> >>>  801-828-1704
> >> >>>
> >> >>> *E*
> >> >>>
> >> >>>  gleonard at progrexion.com
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>> Research | Marketing | Sales Generation
> >> >>>
> >> >>> *www.progrexion.com* <http://www.progrexion.com/>
> >> >>>
> >> >>>
> >> >>>
> >> >>> This email and its contents are confidential. If you are not the
> >> intended
> >> >>> recipient, delete this email and do not use or disclose the
> >> >>> information
> >> >>> within this email or its attachments. Thank you.
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Josh Luthman
> >> >> Office: 937-552-2340
> >> >> Direct: 937-552-2343
> >> >> 1100 Wayne St
> >> >> Suite 1337
> >> >> Troy, OH 45373
> >> >>
> >> >> Those who don't understand UNIX are condemned to reinvent it, poorly.
> >> >> --- Henry Spencer
> >> >
> >> >
> >> >
> >> >
> >> > --
> >> > Tel: 0400 466 952
> >> > Fax: 0433 123 226
> >> > email: philwild AT gmail.com
> >> >
> >>
> >>
> >> --
> >> Josh Luthman
> >> Office: 937-552-2340
> >> Direct: 937-552-2343
> >> 1100 Wayne St
> >> Suite 1337
> >> Troy, OH 45373
> >>
> >> Those who don't understand UNIX are condemned to reinvent it, poorly.
> >> --- Henry Spencer
> >>
> >> To unsubscribe from the hobbit list, send an e-mail to
> >> hobbit-unsubscribe at hswn.dk
> >>
> >>
> >>
> >
> >
> > --
> > Tel: 0400 466 952
> > Fax: 0433 123 226
> > email: philwild AT gmail.com
> >
>
>   --
>
> Josh Luthman
> Office: 937-552-2340
> Direct: 937-552-2343
> 1100 Wayne St
> Suite 1337
> Troy, OH 45373
>
> Those who don't understand UNIX are condemned to reinvent it, poorly.
> --- Henry Spencer
>
> To unsubscribe from the hobbit list, send an e-mail to
> hobbit-unsubscribe at hswn.dk
>
>
>
>
> --
> Tel: 0400 466 952
> Fax: 0433 123 226
> email: philwild AT gmail.com
>

-- 
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer
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