[hobbit] DNS resolution

[Brodie, Kent]

Aha!  Ok, thanks.

I made the mistake of running that manually, and it kind of short
circuited every CONN test out there on the running server.   Oops.
More pager batteries........................



---------------------------------------------------------
Kent C. Brodie - brodie at phys.mcw.edu
Department of Physiology
Medical College of Wisconsin
(414) 456-8590
-----Original Message-----
From: Henrik Stoerner [mailto:henrik at hswn.dk] 
Sent: Monday, July 24, 2006 3:56 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] DNS resolution

On Mon, Jul 24, 2006 at 03:35:47PM -0500, Brodie, Kent wrote:
> Hi- by the way, my cluster stuff is finally working the way I want.
> Thanks for putting up with my ignorance on how the hobbitd and bbproxy
> stuff co-exist (or don't)!
> 
> In my bbtests column of my main server, I see:
> 
> DNS statistics:
>  # hostnames resolved  :      141
>  # succesful           :      136
>  # failed              :        5
>  # calls to dnsresolve :      183
> 
> .... any idea what's the easiest way for me to discern "which" of my
183
> hosts are failing DNS resolution? 

The only way currently is to run bbtest-net with the --debug option, and
grep the output for "DNS lookup failed". I've been asked before, so I 
really should add some way of easily finding this information, or at
least provide a way of logging it.

BTW, you don't have 183 hostnames - you have 141. The 183 is the number
of times a hostname lookup was done, so some of them was via the cache
that bbtest-net has. This is because the same hostname may be needed for
multiple tests, e.g. if you use it in http url's that you test.


Regards,
Henrik


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