Hobbit CONN questions

16 messages in this thread

list Johan Boyé · Tue, 6 Nov 2007 15:42:51 +0100 ·

Hello again,
 
   I'm polished a Hobbit installation. I would like to know how the
Hobbit server handle the "conn" step. I guess it's a couple of ping,
isn't it ?
   How it works when a first ping doesn't not respond? How many packet
are sent each time? What is the time-out? Can we configure it?
 
   Thanks by advance for any informations related to this ;)
 
       Johan

"Les informations contenues dans ce message electronique peuvent etre de nature confidentielles et soumises a une obligation de secret. Elles sont destinees a l'usage exclusif du reel destinataire. Si vous n'etes pas le reel destinataire, ou si vous recevez ce message par erreur, merci de le detruire immediatement et de le notifier a son emetteur."

 "The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender."

list Chris Ss-is Morris · Tue, 6 Nov 2007 14:53:44 -0000 ·

Well it depends whether you are using fping or hobbitping - try reading the
man pages, which can be accessed from the Help menu of the web page.

This tells you how many pings, what happens when the first ping fails, the
timeout etc etc and yes it is configurable.

▸ quoted from Johan Boyé

-----Original Message-----
From:	user-08b3b26d089f@xymon.invalid [SMTP:user-08b3b26d089f@xymon.invalid]
Sent:	Tuesday, November 06, 2007 2:43 PM
To:	user-ae9b8668bcde@xymon.invalid
Subject:	[hobbit] Hobbit CONN questions

Hello again,
    I'm polished a Hobbit installation. I would like to know how the Hobbit
server handle the "conn" step. I guess it's a couple of ping, isn't it ?
   How it works when a first ping doesn't not respond? How many packet are
sent each time? What is the time-out? Can we configure it?
    Thanks by advance for any informations related to this ;)
        Johan

"Les informations contenues dans ce message electronique peuvent etre de
nature confidentielles et soumises a une obligation de secret. Elles sont
destinees a l'usage exclusif du reel destinataire. Si vous n'etes pas le
reel destinataire, ou si vous recevez ce message par erreur, merci de le
detruire immediatement et de le notifier a son emetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

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list Johan Boyé · Thu, 8 Nov 2007 08:40:32 +0100 ·

▸ quoted from Chris Ss-is Morris

-----Message d'origine-----
De : Morris, Chris (SS-IS) [mailto:user-d235f3ed1ca2@xymon.invalid] Envoyé : mardi 6 novembre 2007 15:54
À : 'user-ae9b8668bcde@xymon.invalid'
Objet : RE: [hobbit] Hobbit CONN questions

Well it depends whether you are using fping or hobbitping - try reading the
man pages, which can be accessed from the Help menu of the web page.

This tells you how many pings, what happens when the first ping fails, the
timeout etc etc and yes it is configurable.

Thanks you for you answer but I still can figure out what do a "conn" exactly. Can you give the direct URL please ?

-----Original Message-----
Hello again,

   I'm polishing a Hobbit installation. I would like to know how the Hobbit

▸ quoted from Chris Ss-is Morris

server handle the "conn" step. I guess it's a couple of ping, isn't it ?

   How it works when a first ping doesn't not respond? How many packet are
sent each time? What is the time-out? Can we configure it?

   Thanks by advance for any informations related to this ;)
       Johan

"Les informations contenues dans ce message électronique peuvent être de nature confidentielles et soumises à une obligation de secret. Elles sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le réel destinataire, ou si vous recevez ce message par erreur, merci de le détruire immédiatement et de le notifier à son émetteur."

▸ quoted from Chris Ss-is Morris


 "The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender."

list Josh Luthman · Thu, 8 Nov 2007 10:23:53 -0500 ·

It's very simple.  Conn is a ping test - it pings your host (with one of two
utilities).

Example:

192.168.1.1  myrouter.domain.tld #

This will ping 192.168.1.1 on every poll cycle and report to you via the web
pages and email alerts if you've configured that in hobbit-alert.cfg

▸ quoted from Johan Boyé


On 11/8/07, user-08b3b26d089f@xymon.invalid <user-08b3b26d089f@xymon.invalid> wrote:

-----Message d'origine-----
De : Morris, Chris (SS-IS) [mailto:user-d235f3ed1ca2@xymon.invalid]
Envoyé : mardi 6 novembre 2007 15:54
À : 'user-ae9b8668bcde@xymon.invalid'
Objet : RE: [hobbit] Hobbit CONN questions

Well it depends whether you are using fping or hobbitping -
try reading the
man pages, which can be accessed from the Help menu of the web page.

This tells you how many pings, what happens when the first
ping fails, the
timeout etc etc and yes it is configurable.

Thanks you for you answer but I still can figure out what do a "conn"
exactly. Can you give the direct URL please ?

-----Original Message-----
Hello again,

   I'm polishing a Hobbit installation. I would like to know
how the Hobbit
server handle the "conn" step. I guess it's a couple of
ping, isn't it ?
   How it works when a first ping doesn't not respond? How
many packet are
sent each time? What is the time-out? Can we configure it?

   Thanks by advance for any informations related to this ;)

       Johan

"Les informations contenues dans ce message électronique peuvent être de
nature confidentielles et soumises à une obligation de secret. Elles sont
destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le
réel destinataire, ou si vous recevez ce message par erreur, merci de le
détruire immédiatement et de le notifier à son émetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

--


Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

list Johan Boyé · Fri, 9 Nov 2007 08:14:32 +0100 ·

-----Message d'origine-----
De : Hubbard, Greg L [mailto:user-d970b5e56ec9@xymon.invalid] Envoyé : jeudi 8 novembre 2007 17:20
À : user-ae9b8668bcde@xymon.invalid
Objet : RE: [hobbit] RE: [Disarmed] Re: [hobbit] Hobbit CONN questions

You may have to PURCHASE a tool if you want something to monitor ping response times, which are notoriously unreliable as an indicator of anything.

GLH

Thanks for your answer but I don't really want to monitor the response times. I'm just wondering what triggers in the Hobbit code is used to make a RED ping status :   - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

About smokeping : indeed, it looks very nice, I will check it out anyway ;)

▸ quoted from Josh Luthman

-----Original Message-----
From: user-08b3b26d089f@xymon.invalid [mailto:user-08b3b26d089f@xymon.invalid]
Sent: Thursday, November 08, 2007 10:12 AM
To: user-ae9b8668bcde@xymon.invalid
Subject: [hobbit] RE: [Disarmed] Re: [hobbit] Hobbit CONN questions

-----Message d'origine-----
De : Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
Envoyé : jeudi 8 novembre 2007 16:24
À : user-ae9b8668bcde@xymon.invalid
Objet : [Disarmed] Re: [hobbit] Hobbit CONN questions

It's very simple.  Conn is a ping test - it pings your host (with one > of two utilities).
Example:


192.168.1.1 <http://192.168.1.1>;   myrouter.domain.tld #
This will ping 192.168.1.1 <http://192.168.1.1>;  on every poll cycle > and report to you via the web pages and email alerts if you've > configured that in hobbit-alert.cfg

That means it does just a ping & if the ping doesn't not reply, it will display an RED alert ?
And if the ping make 200ms or 2000ms or 15000ms to answer ? 
  Thanks you

On 11/8/07, user-08b3b26d089f@xymon.invalid

▸ quoted from Josh Luthman

<mailto:user-08b3b26d089f@xymon.invalid>  <user-08b3b26d089f@xymon.invalid> wrote:

-----Message d'origine-----

De : Morris, Chris (SS-IS)

[mailto:user-d235f3ed1ca2@xymon.invalid]

Envoyé : mardi 6 novembre 2007 15:54
À : ' user-ae9b8668bcde@xymon.invalid'
Objet : RE: [hobbit] Hobbit CONN questions

Well it depends whether you are using fping or hobbitping -
try reading the
man pages, which can be accessed from the Help menu of the web > page.

This tells you how many pings, what happens when the first
ping fails, the
timeout etc etc and yes it is configurable.

	
	Thanks you for you answer but I still can figure out what do a "conn" > exactly. Can you give the direct URL please ?

-----Original Message-----
Hello again,

   I'm polishing a Hobbit installation. I would like to know
how the Hobbit
server handle the "conn" step. I guess it's a couple of > 	> ping, isn't it ?
   How it works when a first ping doesn't not respond? How
many packet are
sent each time? What is the time-out? Can we configure it?

   Thanks by advance for any informations related > to this ;) > 	> >
       Johan

	
	"Les informations contenues dans ce message électronique peuvent être > de nature confidentielles et soumises à une obligation de secret.
Elles sont destinées à l'usage exclusif du réel destinataire. Si vous > n'êtes pas le réel destinataire, ou si vous recevez ce message par > erreur, merci de le détruire immédiatement et de le notifier à son > émetteur."
	
	"The information contained in this e-mail may be privileged and > confidential. It is intended for the exclusive use of the designated > recipients named above. If you are not the intended recipient or if > you receive this e-mail in error, please delete it and immediately > notify the sender."

--

Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.

--- Henry Spencer

list Henrik Størner · Fri, 9 Nov 2007 08:22:32 +0100 ·

▸ quoted from Johan Boyé

On Fri, Nov 09, 2007 at 08:14:32AM +0100, user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used to make a RED ping status : 
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

list Johan Boyé · Fri, 9 Nov 2007 08:48:20 +0100 ·

▸ quoted from Henrik Størner

-----Message d'origine-----
De : Henrik Stoerner [mailto:user-ce4a2c883f75@xymon.invalid] Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions

On Fri, Nov 09, 2007 at 08:14:32AM +0100, user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used to make a RED ping status : >   - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

Got it, options must be put in the hobbitserver.cfg. Thanks for the info!

▸ quoted from Johan Boyé


"Les informations contenues dans ce message électronique peuvent être de nature confidentielles et soumises à une obligation de secret. Elles sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le réel destinataire, ou si vous recevez ce message par erreur, merci de le détruire immédiatement et de le notifier à son émetteur."

 "The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender."

list Josh Luthman · Wed, 21 Nov 2007 02:13:24 -0500 ·

Concerning fping options, I have some RRD graphs that show enormous pings to
some of our customer's (upwards of 800ms) because as the radio doesn't pass
any traffic it sits there and when someone first looks for it, it acts kind
of dumb.

What delegates how often the FPING command is issued?  I'm not looking for
the arguments for fping itself, but rather how hobbitd kicks fping into
gear.

I would like to increase the rate of the pings and see if that helps.  I'm
running a continuous ping over night to see if that changes the graph or if
it really does spike to that outrageous height.

Josh

▸ quoted from Johan Boyé


On 11/9/07, user-08b3b26d089f@xymon.invalid <user-08b3b26d089f@xymon.invalid> wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto:user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions

On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

Got it, options must be put in the hobbitserver.cfg. Thanks for the info!

"Les informations contenues dans ce message électronique peuvent être de
nature confidentielles et soumises à une obligation de secret. Elles sont
destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le
réel destinataire, ou si vous recevez ce message par erreur, merci de le
détruire immédiatement et de le notifier à son émetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

-- 
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

list Greg L Hubbard · Thu, 22 Nov 2007 07:58:23 -0600 ·

Don't forget the ARP protocol -- if a destination is not in the local system's ARP cache, the lower layer code in the IP stack discards the first packet and generates an ARP broadcast.  The assumption (I guess) is that the discarded packet will be retransmitted.  You might look for the "knobs" on fping to control timeouts and retry counts.
 GLH

▸ quoted from Josh Luthman



	From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] 	Sent: Wednesday, November 21, 2007 1:13 AM
	To: user-ae9b8668bcde@xymon.invalid
	Subject: Re: RE: Re: [hobbit] Hobbit CONN questions
	
	
	Concerning fping options, I have some RRD graphs that show enormous pings to some of our customer's (upwards of 800ms) because as the radio doesn't pass any traffic it sits there and when someone first looks for it, it acts kind of dumb. 	
	What delegates how often the FPING command is issued?  I'm not looking for the arguments for fping itself, but rather how hobbitd kicks fping into gear.
	
	I would like to increase the rate of the pings and see if that helps.  I'm running a continuous ping over night to see if that changes the graph or if it really does spike to that outrageous height. 	
	Josh
	
	
	On 11/9/07, user-08b3b26d089f@xymon.invalid <user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions 		>
On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ? 		>

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for 		> details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

		
		Got it, options must be put in the hobbitserver.cfg . Thanks for the info!
		
		"Les informations contenues dans ce message électronique peuvent être de nature confidentielles et soumises à une obligation de secret. Elles sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le réel destinataire, ou si vous recevez ce message par erreur, merci de le détruire immédiatement et de le notifier à son émetteur." 		
		"The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender." 		
		
		
	-- 	Josh Luthman
	Office: XXX-XXX-XXXX
	Direct: XXX-XXX-XXXX
	XXXX Wayne St
	Suite XXXX
	Troy, OH XXXXX
	
	Those who don't understand UNIX are condemned to reinvent it, poorly.
	--- Henry Spencer

list Josh Luthman · Thu, 22 Nov 2007 19:02:49 -0500 ·

ARP can't be the problem - ARP will cache the result for 2 minutes and clear
it if unused.  If the result is used and is valid again within the 2
minutes, it is cached for 10 minutes.  Hobbit polls every 30-45 seconds so
ARP is not a problem.

Having switch from using hobbitping to fping I think the graphs are going to
look far superior now.  Things on the same switch are no longer 30ms but 1ms
=)

I now understand why there are warnings not to use hobbitping, but I don't
understand how the command line is getting such normal results while the
graphs are getting such high results.  Does anyone know why this is?

Josh

▸ quoted from Greg L Hubbard


On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 Don't forget the ARP protocol -- if a destination is not in the local
system's ARP cache, the lower layer code in the IP stack discards the first
packet and generates an ARP broadcast.  The assumption (I guess) is that the
discarded packet will be retransmitted.  You might look for the "knobs" on
fping to control timeouts and retry counts.

GLH

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Wednesday, November 21, 2007 1:13 AM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

Concerning fping options, I have some RRD graphs that show enormous pings
to some of our customer's (upwards of 800ms) because as the radio doesn't
pass any traffic it sits there and when someone first looks for it, it acts
kind of dumb.

What delegates how often the FPING command is issued?  I'm not looking for
the arguments for fping itself, but rather how hobbitd kicks fping into
gear.

I would like to increase the rate of the pings and see if that helps.  I'm
running a continuous ping over night to see if that changes the graph or if
it really does spike to that outrageous height.

Josh

On 11/9/07, user-08b3b26d089f@xymon.invalid <user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions

On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

Got it, options must be put in the hobbitserver.cfg . Thanks for the
info!

"Les informations contenues dans ce message électronique peuvent être de
nature confidentielles et soumises à une obligation de secret. Elles sont
destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le
réel destinataire, ou si vous recevez ce message par erreur, merci de le
détruire immédiatement et de le notifier à son émetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

-- 
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

list Greg L Hubbard · Thu, 22 Nov 2007 18:10:49 -0600 ·

"Hobbit polls every 30 - 45 seconds"  -- really?  How did you measure this?

▸ quoted from Josh Luthman

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] Sent: Thursday, November 22, 2007 6:03 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: RE: Re: [hobbit] Hobbit CONN questions

ARP can't be the problem - ARP will cache the result for 2 minutes and clear it if unused. If the result is used and is valid again within the 2 minutes, it is cached for 10 minutes. Hobbit polls every 30-45 seconds so ARP is not a problem.
Having switch from using hobbitping to fping I think the graphs are going to look far superior now. Things on the same switch are no longer 30ms but 1ms =)

I now understand why there are warnings not to use hobbitping, but I don't understand how the command line is getting such normal results while the graphs are getting such high results. Does anyone know why this is?
Josh

On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:
Don't forget the ARP protocol -- if a destination is not in the local system's ARP cache, the lower layer code in the IP stack discards the first packet and generates an ARP broadcast. The assumption (I guess) is that the discarded packet will be retransmitted. You might look for the "knobs" on fping to control timeouts and retry counts.
GLH

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] Sent: Wednesday, November 21, 2007 1:13 AM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: RE: Re: [hobbit] Hobbit CONN questions

Concerning fping options, I have some RRD graphs that show enormous pings to some of our customer's (upwards of 800ms) because as the radio doesn't pass any traffic it sits there and when someone first looks for it, it acts kind of dumb.
What delegates how often the FPING command is issued? I'm not looking for the arguments for fping itself, but rather how hobbitd kicks fping into gear.

I would like to increase the rate of the pings and see if that helps. I'm running a continuous ping over night to see if that changes the graph or if it really does spike to that outrageous height.
Josh

On 11/9/07, user-08b3b26d089f@xymon.invalid < user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions 				>
On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ? 				>

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for 				> details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

				
				Got it, options must be put in the hobbitserver.cfg . Thanks for the info!
				
				"Les informations contenues dans ce message électronique peuvent être de nature confidentielles et soumises à une obligation de secret. Elles sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le réel destinataire, ou si vous recevez ce message par erreur, merci de le détruire immédiatement et de le notifier à son émetteur." 				
				"The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender." 				
				
				
			-- 			Josh Luthman
			Office: XXX-XXX-XXXX
			Direct: XXX-XXX-XXXX
			XXXX Wayne St
			Suite XXXX
			Troy, OH XXXXX
			
			Those who don't understand UNIX are condemned to reinvent it, poorly.
			--- Henry Spencer 


	-- 	Josh Luthman
	Office: XXX-XXX-XXXX
	Direct: XXX-XXX-XXXX
	XXXX Wayne St
	Suite XXXX
	Troy, OH XXXXX
	
	Those who don't understand UNIX are condemned to reinvent it, poorly. 	--- Henry Spencer

list Josh Luthman · Thu, 22 Nov 2007 19:17:43 -0500 ·

Two hints:

1) When a host goes red, it always goes green after 28-32 seconds or 43-46
seconds.
2) When a host is red divide the number of seconds it has been unchanged by
the amount of polls.  You'll never get a a remainder greater then a minute.

▸ quoted from Greg L Hubbard


On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 "Hobbit polls every 30 - 45 seconds"  -- really?  How did you measure
this?

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Thursday, November 22, 2007 6:03 PM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

ARP can't be the problem - ARP will cache the result for 2 minutes and
clear it if unused.  If the result is used and is valid again within the 2
minutes, it is cached for 10 minutes.  Hobbit polls every 30-45 seconds so
ARP is not a problem.

Having switch from using hobbitping to fping I think the graphs are going
to look far superior now.  Things on the same switch are no longer 30ms but
1ms =)

I now understand why there are warnings not to use hobbitping, but I don't
understand how the command line is getting such normal results while the
graphs are getting such high results.  Does anyone know why this is?

Josh

On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 Don't forget the ARP protocol -- if a destination is not in the local
system's ARP cache, the lower layer code in the IP stack discards the first
packet and generates an ARP broadcast.  The assumption (I guess) is that the
discarded packet will be retransmitted.  You might look for the "knobs" on
fping to control timeouts and retry counts.

GLH

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Wednesday, November 21, 2007 1:13 AM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

 Concerning fping options, I have some RRD graphs that show enormous
pings to some of our customer's (upwards of 800ms) because as the radio
doesn't pass any traffic it sits there and when someone first looks for it,
it acts kind of dumb.

What delegates how often the FPING command is issued?  I'm not looking
for the arguments for fping itself, but rather how hobbitd kicks fping into
gear.

I would like to increase the rate of the pings and see if that helps.
I'm running a continuous ping over night to see if that changes the graph or
if it really does spike to that outrageous height.

Josh

On 11/9/07, user-08b3b26d089f@xymon.invalid < user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions

On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

Got it, options must be put in the hobbitserver.cfg . Thanks for the
info!

"Les informations contenues dans ce message électronique peuvent être
de nature confidentielles et soumises à une obligation de secret. Elles sont
destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le
réel destinataire, ou si vous recevez ce message par erreur, merci de le
détruire immédiatement et de le notifier à son émetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

-- 
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

list Ralph Mitchell · Fri, 23 Nov 2007 22:41:58 -0600 ·

▸ quoted from Josh Luthman

On Nov 22, 2007 6:10 PM, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 "Hobbit polls every 30 - 45 seconds"  -- really?  How did you measure
this?

Don't some tests get queued up to retry if they fail??  I think the retry
happens after 1 minute, but I don't have a Hobbit handy to check that.

Ralph Mitchell

list Josh Luthman · Fri, 23 Nov 2007 23:49:04 -0500 ·

I actually just saw one a few minutes ago where it was red for 7
secondsthen went right back to green!

▸ quoted from Ralph Mitchell


On 11/23/07, Ralph Mitchell <user-00a5e44c48c0@xymon.invalid> wrote:

On Nov 22, 2007 6:10 PM, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 "Hobbit polls every 30 - 45 seconds"  -- really?  How did you measure
this?

Don't some tests get queued up to retry if they fail??  I think the retry
happens after 1 minute, but I don't have a Hobbit handy to check that.

Ralph Mitchell

-- 
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

list Greg L Hubbard · Sun, 25 Nov 2007 17:06:31 -0600 ·

Why don't you try a tcpdump or snoop against a specific host and see what is going on?  I think you are being misled by these measurements.
 If I remember the code, the Hobbit pinger tries once every minute.  It also will retry a few times if there is a failure.  If it decides to put "conn" into a red state, it then starts polling every minute (instead of five minutes) for 30 minutes.  I think this was done to shorten the down times for ping tests.  After 30 minutes, the pinger reverts to its normal cycle.

▸ quoted from Josh Luthman

GLH

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] Sent: Thursday, November 22, 2007 6:18 PM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: RE: Re: [hobbit] Hobbit CONN questions

Two hints:

1) When a host goes red, it always goes green after 28-32 seconds or 43-46 seconds.
2) When a host is red divide the number of seconds it has been unchanged by the amount of polls. You'll never get a a remainder greater then a minute.

On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:
"Hobbit polls every 30 - 45 seconds" -- really? How did you measure this?

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] Sent: Thursday, November 22, 2007 6:03 PM
To: user-ae9b8668bcde@xymon.invalid Subject: Re: RE: Re: [hobbit] Hobbit CONN questions

From: Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid] Sent: Wednesday, November 21, 2007 1:13 AM
To: user-ae9b8668bcde@xymon.invalid
Subject: Re: RE: Re: [hobbit] Hobbit CONN questions

On 11/9/07, user-08b3b26d089f@xymon.invalid < user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions 					>
On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ? 					>

It goes red when the ping utility that is used (fping or hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for 					> details. You can tune this through commandline options for the ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

					
					Got it, options must be put in the hobbitserver.cfg . Thanks for the info!
					
					"Les informations contenues dans ce message électronique peuvent être de nature confidentielles et soumises à une obligation de secret. Elles sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas le réel destinataire, ou si vous recevez ce message par erreur, merci de le détruire immédiatement et de le notifier à son émetteur." 					
					"The information contained in this e-mail may be privileged and confidential. It is intended for the exclusive use of the designated recipients named above. If you are not the intended recipient or if you receive this e-mail in error, please delete it and immediately notify the sender." 					
					
					
					-- 					Josh Luthman
					Office: XXX-XXX-XXXX
					Direct: XXX-XXX-XXXX
					XXXX Wayne St
					Suite XXXX
					Troy, OH XXXXX
					
					Those who don't understand UNIX are condemned to reinvent it, poorly.
					--- Henry Spencer 


			-- 			Josh Luthman
			Office: XXX-XXX-XXXX
			Direct: XXX-XXX-XXXX
			XXXX Wayne St
			Suite XXXX
			Troy, OH XXXXX
			
			Those who don't understand UNIX are condemned to reinvent it, poorly. 			--- Henry Spencer 


	-- 	Josh Luthman
	Office: XXX-XXX-XXXX
	Direct: XXX-XXX-XXXX
	XXXX Wayne St
	Suite XXXX
	Troy, OH XXXXX
	
	Those who don't understand UNIX are condemned to reinvent it, poorly. 	--- Henry Spencer

list Josh Luthman · Sun, 25 Nov 2007 18:20:06 -0500 ·

On a free weekend, I will do that to be sure =)

Another piece of evidence that supports my theory is that if I root through
the full history of the hosts I find a lot of ~30 second red durations in
the middle of the green ones.

▸ quoted from Greg L Hubbard


On 11/25/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 Why don't you try a tcpdump or snoop against a specific host and see what
is going on?  I think you are being misled by these measurements.

If I remember the code, the Hobbit pinger tries once every minute.  It
also will retry a few times if there is a failure.  If it decides to put
"conn" into a red state, it then starts polling every minute (instead of
five minutes) for 30 minutes.  I think this was done to shorten the down
times for ping tests.  After 30 minutes, the pinger reverts to its normal
cycle.

GLH

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Thursday, November 22, 2007 6:18 PM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

Two hints:

1) When a host goes red, it always goes green after 28-32 seconds or 43-46
seconds.
2) When a host is red divide the number of seconds it has been unchanged
by the amount of polls.  You'll never get a a remainder greater then a
minute.

On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 "Hobbit polls every 30 - 45 seconds"  -- really?  How did you measure
this?

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Thursday, November 22, 2007 6:03 PM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

 ARP can't be the problem - ARP will cache the result for 2 minutes and
clear it if unused.  If the result is used and is valid again within the 2
minutes, it is cached for 10 minutes.  Hobbit polls every 30-45 seconds so
ARP is not a problem.

Having switch from using hobbitping to fping I think the graphs are
going to look far superior now.  Things on the same switch are no longer
30ms but 1ms =)

I now understand why there are warnings not to use hobbitping, but I
don't understand how the command line is getting such normal results while
the graphs are getting such high results.  Does anyone know why this is?

Josh

On 11/22/07, Hubbard, Greg L <user-d970b5e56ec9@xymon.invalid> wrote:

 Don't forget the ARP protocol -- if a destination is not in the local
system's ARP cache, the lower layer code in the IP stack discards the first
packet and generates an ARP broadcast.  The assumption (I guess) is that the
discarded packet will be retransmitted.  You might look for the "knobs" on
fping to control timeouts and retry counts.

GLH

*From:* Josh Luthman [mailto:user-4c45a83f15cb@xymon.invalid]
*Sent:* Wednesday, November 21, 2007 1:13 AM
*To:* user-ae9b8668bcde@xymon.invalid
*Subject:* Re: RE: Re: [hobbit] Hobbit CONN questions

 Concerning fping options, I have some RRD graphs that show enormous
pings to some of our customer's (upwards of 800ms) because as the radio
doesn't pass any traffic it sits there and when someone first looks for it,
it acts kind of dumb.

What delegates how often the FPING command is issued?  I'm not looking
for the arguments for fping itself, but rather how hobbitd kicks fping into
gear.

I would like to increase the rate of the pings and see if that helps.
I'm running a continuous ping over night to see if that changes the graph or
if it really does spike to that outrageous height.

Josh

On 11/9/07, user-08b3b26d089f@xymon.invalid < user-08b3b26d089f@xymon.invalid > wrote:

-----Message d'origine-----
De : Henrik Stoerner [mailto: user-ce4a2c883f75@xymon.invalid]
Envoyé : vendredi 9 novembre 2007 08:23
À : user-ae9b8668bcde@xymon.invalid
Objet : Re: RE: Re: [hobbit] Hobbit CONN questions

On Fri, Nov 09, 2007 at 08:14:32AM +0100,
user-08b3b26d089f@xymon.invalid wrote:

I'm just wondering what triggers in the Hobbit code is used
to make a RED ping status :
  - after just one no echo-reply each 5min ?
  - after a couple of no echo-reply ? How much ?
  - What is the timeout used to declare the host unreachable ?

It goes red when the ping utility that is used (fping or
hobbitping)
says that the host did not respond. How many pings are sent
and what the
timeouts are is decided by the ping tool; see their man-pages for
details. You can tune this through commandline options for the
ping
tool, these go into the FPINGCMD setting in hobbitserver.cfg


Henrik

Got it, options must be put in the hobbitserver.cfg . Thanks for the
info!

"Les informations contenues dans ce message électronique peuvent
être de nature confidentielles et soumises à une obligation de secret. Elles
sont destinées à l'usage exclusif du réel destinataire. Si vous n'êtes pas
le réel destinataire, ou si vous recevez ce message par erreur, merci de le
détruire immédiatement et de le notifier à son émetteur."

"The information contained in this e-mail may be privileged and
confidential. It is intended for the exclusive use of the designated
recipients named above. If you are not the intended recipient or if you
receive this e-mail in error, please delete it and immediately notify the
sender."

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

--
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

-- 
Josh Luthman
Office: XXX-XXX-XXXX
Direct: XXX-XXX-XXXX
XXXX Wayne St
Suite XXXX
Troy, OH XXXXX

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer

Hobbit CONN questions 🔗 link

Hobbit CONN questions