[hobbit] Strange pinging issue

Wed Dec 5 16:29:38 CET 2007

    Good call on my issue, that indeed was the case.  We cloned our
Hobbit server to have another for redundancy, and in the setup had some
config problems with them integrating with each other.  It's all set
now.   Thanks!

________________________________

From: Sebastian [mailto:spa at syntec.co.uk] 
Sent: Monday, December 03, 2007 10:56 AM
To: hobbit at hswn.dk
Subject: RE: [hobbit] Strange pinging issue

Based mostly on my BB experience, but it looks equally applicable to
Hobbit:

Shawn's problem looks it might be caused by two BBNETs, one of which can
see the other system and one of which cannot, both reporting to the same
BBDISPLAY - hence the flapping.

Josh's issue just looks like glitches (occasional packet loss, probably)
in the network path from time to time.

Sebastian

________________________________

	From: Josh Luthman [mailto:josh at imaginenetworksllc.com] 
	Sent: 30 November 2007 21:48
	To: hobbit at hswn.dk
	Subject: Re: [hobbit] Strange pinging issue

	I get a very similar situation, of which I was just about to
report!  Mine will be green for hours or days, then show up red for much
less time (5-45 seconds).  I've mine set as default..

	FPING="/usr/sbin/fping" 

	I have testip on almost every single host.

	On 11/30/07, Maschino, Shawn (SABIC Innovative Plastics) <
shawn.maschino at sabic-ip.com <mailto:shawn.maschino at sabic-ip.com> >
wrote: 

		    Hi all, we are seeing a strange fping issue with
Hobbit and I was wondering if anyone may have seen the same.

		    We have changed the IP addresses on a large number
of systems we are monitoring due to moving them to a new location.  We
updated the bb-hosts file to have the new IPs, and DNS was also updated.
However Hobbit occasionally falls back to testing the old IP for no
apparent reason.  

		    This happens quite regularly as well, as seen here:

Fri Nov 30 10:56:08 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:56:08_2007> 	 0:04:19	
Fri Nov 30 10:48:31 2007	 green
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:48:31_2007> 	 0:07:37	
Fri Nov 30 10:48:08 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:48:08_2007> 	 0:00:23	
Fri Nov 30 10:42:27 2007	 green
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:42:27_2007> 	 0:05:41	
Fri Nov 30 10:39:53 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:39:53_2007> 	 0:02:34	
Fri Nov 30 10:36:49 2007	 green
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:36:49_2007> 	 0:03:04	
Fri Nov 30 10:31:57 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:31:57_2007> 	 0:04:52	
Fri Nov 30 10:25:27 2007	 green
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:25:27_2007> 	 0:06:30	
Fri Nov 30 10:23:58 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:23:58_2007> 	 0:01:29	
Fri Nov 30 10:19:19 2007	 green
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:19:19_2007> 	 0:04:39	
Fri Nov 30 10:16:26 2007	 red
<http://lacin002v.gep.ge.com/cgi-bin/bb-histlog.sh?HOST=SACIN053V&SERVIC
E=conn&TIMEBUF=Fri_Nov_30_10:16:26_2007> 	 0:02:53	

		    The conn status page when green shows the correct IP
address, and when red shows the wrong (old) IP address.  Nothing in the
bb-hosts or DNS change during this time.

		    I ran a "fping -AeC 1000 -i 5000 <host>" from the
command line to see if fping was switching IPs, and it does not seem to
be, even when Hobbit shows red, the fping from the command line still
his the new/current IP.

		    I've tried forcing a "testip" in bb-hosts to see if
DNS was involved, and with that forced it still changes in Hobbit.

		    Any suggestions would be much appreciated.

		    Thanks,

		Shawn

	-- 
	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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