[smokeping-users] Smoke cut-off problem back in 2.4.0?

[Stephen Spence]

Indeed, this has proven to be a big issue for us also.

We use smokeping to monitor the quality of our various branch office links and unless I grab current graphs of network events it's very hard to identify issues and provide meaningful information later on.

Is there some switch to disable the reduction of detail? Storage and processing capacity really isn't an problem for us here.


-----Original Message-----
From: smokeping-users-bounces at lists.oetiker.ch [mailto:smokeping-users-bounces at lists.oetiker.ch] On Behalf Of G.W. Haywood
Sent: 12 June 2008 13:23
To: Tobias Oetiker
Cc: Smokeping users' mailing list
Subject: Re: [smokeping-users] Smoke cut-off problem back in 2.4.0?

Hi Tobi,

On Thu, 12 Jun 2008, Tobias Oetiker wrote:

> you can configure rrdtool to keep hiresolution data for arbitrary
> time. The consolidation is just a way to keep more data with less
> space. If you have the space, configure the hires RRAs to be longer
> (still have the low res rras around for long term graphs).
> Performance will not be impacted in any way by this change.

I don't think I'm making my point clearly enough.

I know that that RRDtool, and the Terabyte of storage on my desk,
permit me to keep records at high resolution for extended periods.

However, short of painstakingly examining the high-resolution graphs
minute-by-minute I do not see how Smokeping will alert me to transient
short duration events.  These may be symptoms of some unknown problem
which appeared while I was away on holiday: It's 8am on Monday morning
and there's a great big heap of paper in my 'IN' tray.  An ugly crowd
of disgruntled computer users is gathering at the door to the IT dep't
offices, and I'd like to take a quick look at what's been going on in
the LAN for the past month before I unlock it - so that I don't appear
to be quite so clueless as is in fact the case.

Networks can be a bit like combat - long periods of nothing happening
punctuated by moments of sheer terror.  The 'nothing happening' bits
establish reference points but little else, and can be characterized
with little storage (or screen) capacity.  The punctuations are more
interesting, and will require more resources.  At the moment these
punctuations tend to be masked.  In your words:

> Date: Sat, 26 Apr 2008 14:49:38 +0200 (CEST)
> From: Tobias Oetiker <tobi at oetiker.ch>
> To: G.W. Haywood <ged at jubileegroup.co.uk>
> In-Reply-To: <Pine.LNX.4.58.0804261259001.18067 at mail3.jubileegroup.co.uk>
> Cc: smokeping-users at lists.oetiker.ch
> Subject: Re: [smokeping-users] Graph scale problem
>
> [snip] the net result is, that the spike becomes lower as it gets
> distributed across time [snip]

That's the bit that bothers me.

I think I've banged on this drum enough now. :)

--

73,
Ged.

_______________________________________________
smokeping-users mailing list
smokeping-users at lists.oetiker.ch
https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email
______________________________________________________________________

* * * * * *IMPORTANT NOTICE * * * * * *

This e-mail/attachment(s) ("e-mail") is/are confidential, intended for the addressee and may be legally privileged. If sent to you in error, please inform the sender immediately and delete the e-mail from your system. You must not use or copy this e-mail for any purpose or disclose its contents to anyone. Clarkslegal LLP accepts no liability for the content of e-mails, other than those sent on its business or that of a client. No responsibility is accepted for changes made to e-mails after sending. E-mails are checked for viruses known to our anti-virus system, but Clarkslegal LLP accepts no liability for loss or damage suffered due to a virus or similar. Clarkslegal LLP reserves the right to monitor incoming and outgoing e-mails, to the extent permitted by law.

Clarkslegal LLP is a limited liability partnership registered in England and Wales. Registered number: OC308349. Registered office: One Forbury Square, The Forbury, Reading, RG1 3EB. VAT registration number: 198 9098 84. Solicitors regulated by the Solicitors Regulation Authority. References to Partners are to Members of Clarkslegal LLP. A list of Members may be inspected as the registered office. Clarkslegal LLP does not accept service by email.

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________