[hobbit] Two DNS lookups for a server but one fails

Johan Sjöberg johan.sjoberg at deltamanagement.se
Fri Jan 9 09:49:18 CET 2009


We did not experience any "purple" problems, only this single crash of the bbtest-net. But I suppose that several consecutive crashes would have caused the tests to go purple.

/Johan

-----Original Message-----
From: Everett, Vernon [mailto:Vernon.Everett at woodside.com.au] 
Sent: den 9 januari 2009 07:44
To: hobbit at hswn.dk
Subject: RE: [hobbit] Two DNS lookups for a server but one fails

This looks remarkably like the error we were experiencing.
What are you running on?

Do you have the case where all the network tests - ping, http, https, ftp etc. go purple?
If so it might be the same.

With Henrik's assistance, we resolved it down to a problem with the ARES resolver.
I changed our hobbitlaunch.cfg file to include the --no-ares option (see below), and we have never had the issue again.
[bbnet]
        ENVFILE /usr/lib/hobbit/server/etc/hobbitserver.cfg
        NEEDS hobbitd
        CMD bbtest-net --report --ping --checkresponse --no-ares
        LOGFILE $BBSERVERLOGS/bb-network.log
        INTERVAL 5m 

(Of course this does come with a caveat. See bbtest-net man page in Xymon docs http://www.xymon.com/hobbit/help/manpages/man1/bbtest-net.1.html )

YMMV.

Cheers
   V



-----Original Message-----
From: doctor at makelofine.org [mailto:doctor at makelofine.org] 
Sent: Friday, 9 January 2009 3:34 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] Two DNS lookups for a server but one fails

On Thu, 8 Jan 2009 09:24:29 +0100, "Lars Ebeling"
<lars.ebeling at leopg9.no-ip.org> wrote:
> ----- Original Message -----
> From: "Johan Sjöberg" <johan.sjoberg at deltamanagement.se>
> To: <hobbit at hswn.dk>
> Sent: Thursday, January 08, 2009 9:04 AM
> Subject: RE: [hobbit] Two DNS lookups for a server but one fails
> 
> 
> This night, after installing the new bbtest-net, we received an alarm 
> on bbtest for the Xymon server, saying " - Program crashed Fatal 
> signal caught!"
>>From hobbitlaunch.log: "2009-01-08 05:05:07 Task bbnet terminated by 
>>signal 6"
> 
> /Johan
> 
> 
> If the program crash, you should have a coredump. Run gdb on the 
> coredump

> and post the result here, for Henrik to look at.
> 
> --
> Regards
> Lars Ebeling
> 
> http://leopg9.no-ip.org
> Hobbithobbyist
> 
> "I am not young enough to know everything."
> -- Oscar Wilde
> 
> 
> 
> To unsubscribe from the hobbit list, send an e-mail to 
> hobbit-unsubscribe at hswn.dk
> 

Hi,

Same issue on my side, i used the new compiled bbtest-net using corrected dns.c All is OK, but i got same issue with same error message.

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