Re: [hobbit] Stupid sound question - "DNS Error"

["Gary Baluha" <gumby3203 (at) gmail.com>]

It seems adding a local caching DNS server did no fix this problem.  I'm
truely at a loss now, because nothing I test manually seems to indicate a
problem.  Also, when the hobbit alerts go red due to "DNS Error", as soon as
I go to check, it has cleared up already.

On 9/5/07, Gary Baluha <gumby3203 (at) gmail.com> wrote:
>
> On 9/5/07, Henrik Stoerner <henrik (at) hswn.dk> wrote:
> >
> > On Wed, Sep 05, 2007 at 09:43:32AM -0400, Gary Baluha wrote:
> > > It sounds like an obvious answer, but what does the http/https
> > monitoring
> > > error "DNS Error" mean, exactly?
> >
> > It means Hobbit could not lookup the hostname in DNS.
>
>
> Okay, I thought it was pretty self explanatory, but a quick glance at the
> code wasn't obvious to me.
>
> > Specifically, I have several https checks defined in Hobbit, and a good
> > > number of them get the "DNS Error" message multiple times a day;
> > roughly on
> > > the order of every 1-3 hours.  I have manually verified that DNS is
> > working
> > > for these hosts.  It might help me troubleshoot this if I know exactly
> > how
> > > Hobbit comes to this determination, and if anything else other than
> > DNS
> > > could cause it to appear.
> >
> > A local caching DNS server is usually a good idea. Hobbit has been known
> >
> > to knock out DNS servers, because it sends a lot of requests very
> > quickly.
>
>
> Well, two suggestions to have a local caching DNS must mean it's a pretty
> good idea.  I set this up, and will see if that fixes the problem.
>
>
>