[hobbit] interesting patterns in graphs

[Larry.Sherman at rbsgc.com]

Years ago I saw a pattern in one of my connection graphs.  I was testing hosts on the another subnet that had a older router providing connectivity.  There was also an automated backup job of some local file systems, and then batch jobs dispatched 5 nights a week.  And that was what stuck out: The pattern changed on Saturday/Sunday night.

Larry Sherman
RBS Global Banking & Markets
Office: +1 203 618 2515


-----Original Message-----
From: wmlist_ext at terra.com.br [mailto:wmlist_ext at terra.com.br]
Sent: Wednesday, October 01, 2008 5:12 PM
To: hobbit at hswn.dk
Subject: Re: [hobbit] interesting patterns in graphs


Hi,
If nothing else helps, maybe you can add some debug to look at the
numbers before they get dropped in the rrd and so try to confirm or not
that's a rrd consolidation characteristic or may be it could be the real
net test numbers ...
-wm
----------------------- Original Message -----------------------
From:    jon at shadowsoft.com (Jon Boede)
To:      hobbit at hswn.dk

Date:    Wed, 01 Oct 2008 12:24:47 -0500
Subject: [hobbit] interesting patterns in graphs
----

> Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
>
>
>
> If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
>
> Curiously,
> Jon



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