[Xymon] Xymon Network Tests - Behaviour?

[Mario Valetti]

Last question...

Does this mean though, that the 'extra' test / bb-retest runs every
minute but only sends out a ping/test if a host has been marked as
unreachable?

Mario

On 25/08/2011, Mario Valetti <mariov652 at gmail.com> wrote:
> Apologies, I'll try this again....
>
> Thank you for all the responses to my orginal questions.
>
> In my environment, I try to minimize unecassary traffic.  My second
> question seems answered by simply adding the 'noping' in the bb-hosts
> file.  This would work for my needs.
>
>
> Regarding the first question, I'm currently using Xymon 4.3.0.0 beta
> 2.  I'm assuming the tasks.cfg is used in the newer version(s)
> 4.3.3...?
> I'll also assume the behaviour you describe is the same with the
> [bbnet] and [bbretest] sections in the hobbitlaunch.cfg file in my
> version.  Please let me know if I am wrong.
>
>
> Thanks again,
> Mario
>
> On 25/08/2011, Mario Valetti <mariov652 at gmail.com> wrote:
>> Thank you for
>>
>>
>>> Date: Wed, 24 Aug 2011 14:42:21 +0200
>>> From: <henrik at hswn.dk>
>>> To: <xymon at xymon.com>
>>> Subject: Re: [Xymon] Xymon Network Tests - Behaviour?
>>> Message-ID: <04b91460cd235e5018e5179c06657153 at localhost>
>>> Content-Type: text/plain; charset=UTF-8
>>>
>>> On Wed, 24 Aug 2011 13:52:55 +0200, Mario Valetti <mariov652 at gmail.com>
>>> wrote:
>>>> Could someone please explain the exact behaviour when a host becomes
>>>> unreachable?
>>>>
>>>> As I understand it, it works as follows...
>>>>
>>>> - Xymon pings each host only once,
>>>> - if a reply is not received within a specified time (1sec), 3 ping
>>>> requests are sent out,
>>>> - from one of these three additional pings if a reply is received, the
>>>> host is not indicated as being unavailable and things continue
>>>> normally.  If a reply is not received from these three additional
>>>> requests, the host is marked as unavailable and four pings requests
>>>> sent out every minute until a response is received.
>>>>
>>>> - Why do hosts show unavailable for 40s, 45s for example?  Are the
>>>> times above not fixed and rather work dynamically?
>>>
>>> Not quite, but the normal test and the extra test are scheduled
>>> independently (they are two different tasks in tasks.cfg). The only
>>> restriction is that they will not run simultaneously. So when the first
>>> test detects that the host is down, the extra test may run anywhere from
>>> 0
>>> to 59 seconds after that.
>>>
>>>> Second question is regarding hosts that are shutdown for maintenance,
>>>> for example...
>>>> Usually, these are set to 'until ok' and the host marked blue with no
>>>> alerts.  However Xymon still sends an arp request / ping to check when
>>>> the host becomes available.
>>>>
>>>> Is it possible to disable a host in a way that avoids Xymon checking
>>>> for the host at all?
>>>
>>> No. How would Xymon detect that the host becomes OK without trying to
>>> ping
>>> it ?
>>>
>>>
>>> Regards,
>>> Henrik
>>
>