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Re: [hobbit] wake up call
- To: hobbit (at) hswn.dk
- Subject: Re: [hobbit] wake up call
- From: "Josh Luthman" <josh (at) imaginenetworksllc.com>
- Date: Wed, 21 May 2008 00:23:38 -0400
- References: <C76DE1C678818B4E9D7722DA7D47897B1CCC774C89 (at) OMAHA.pgx.local> <961092e10805192015i3a5c6b19s16a8acade49426bd (at) mail.gmail.com> <258e9b160805192021j10177638k309afb04730729f8 (at) mail.gmail.com> <961092e10805192049g36d1522bm29e8c055438bc975 (at) mail.gmail.com> <258e9b160805192138x8e61ae0ya666ff5735f7cc50 (at) mail.gmail.com> <C76DE1C678818B4E9D7722DA7D47897B1CCC774CB5 (at) OMAHA.pgx.local> <961092e10805200837q3967d551t9495fd9c6744c295 (at) mail.gmail.com> <C0741DEED92E974C911A86BAAB0095583DAA35 (at) naeanworez05.nadsusea.nads.navy.mil> <258e9b160805201811u1af3d9d0ya267d7f55ab6f515 (at) mail.gmail.com> <C76DE1C678818B4E9D7722DA7D47897B1CCC774CED (at) OMAHA.pgx.local>
Thanks for the heads up. I am very interested in knowing what is the cause
and more importantly the solution to your issue, as it may fix mine!
It would VERY nice to be able to print out uptime and availability reports
without the dozens of 1 minute outages. I know my issue is related to the
box itself (hardware or software) as the issue appears on the hobbit server
itself.
On Wed, May 21, 2008 at 12:17 AM, Gavin Leonard <gleonard (at) progrexion.com>
wrote:
> Most if not all of my servers are defined by ip anyway, I have a very
> segmented network so dns is not very helpful across all the different
> domains and subnets.. i use my hosts file for the most part.. now that I
> think of it, I wonder if the ones in the host file are still ok? I will let
> you know…
>
>
>
> -Gavin
>
>
>
> *From:* Phil Wild [mailto:philwild (at) gmail.com]
> *Sent:* Tuesday, May 20, 2008 7:12 PM
>
> *To:* hobbit (at) hswn.dk
> *Subject:* Re: [hobbit] wake up call
>
>
>
> Can I suggest you use IP addresses for a number of servers and see if they
> survive through your next episode. That will give you an idea of where the
> problem might be...
>
>
>
> It is the least amount of work towards identifying the cause.
>
>
>
> Cheers
>
>
>
> Phil
>
> 2008/5/20 Hosch, Katherine CONT (SPAWAR ITC) <katherine.hosch (at) navy.mil>:
>
> Check your apache log restarts in cron....
>
>
> -----Original Message-----
> From: Josh Luthman [mailto:josh (at) imaginenetworksllc.com]
> Sent: Tuesday, May 20, 2008 10:38
> To: hobbit (at) hswn.dk
> Subject: Re: [hobbit] wake up call
>
> 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@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/> *
>
> <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 <http://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 <http://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