[mrtg] Re: MRTG History...or Interactive MRTG revisited

[PAUL WILLIAMSON]

We use 14all because that's what I found to be the best 
suited for our environment (using BB).

The benefit of using RRDTool over standard MRTG is that MRTG has 
to redraw every 5 minute graph every 5 minutes.  With 14all/RRDTool 
combination, graphs and web pages are drawn on the fly.

The MRTG data is in a Round robin database, not flat files.  We have 
also extended the 5 minute intervals for a 1 year period.  This way, 
we only back up the databases at the end of each year.  We don't 
store graphs, we don't save anything additional.

The program used is a perl script that just gives a time/date option.
I'll talk to the guy who wrote it - maybe he'll put it up on 
sourceforge.

Paul

>>> "Jason Humes" <jhumes at acs.on.ca> 03/08/04 08:49AM >>>
You seem to have done what I would like to do...but I'm not familiar with
14all (what is the benefit of this over the standard MRTG and also, what
sort of custom program pulls the data from your flat MRTG logs? Maybe you
could be of help to my project here.  Thanks



-----Original Message-----
From: PAUL WILLIAMSON [mailto:pwilliamson at mandtbank.com] 
Sent: Thursday, March 04, 2004 1:27 PM
To: jhumes at acs.on.ca; mrtg at list.ee.ethz.ch; GWCOOK at mactec.com 
Subject: [mrtg] Re: MRTG History...or Interactive MRTG revisited


>>>> "Cook, Garry" <GWCOOK at mactec.com> 03/04/04 12:59PM >>>
>> Hi
>> I was just going through the history of this list and found a post 
>> regarding an "Interactive MRTG"...I'm not sure if this was ever 
>> developed or not...but what it sounds like, and what I'm looking for, 
>> is some way to display all of the older log data in the "Day" view. I 
>> mean...maybe I could type in a date and have MRTG pull the logs for 
>> that date and then display the data in the "Day" graph...instead of 
>> the week, month, year...I guess just for the added detail.  Thanks 
>> for any info on this...
>> 
>> Jason D. Humes
>
>If you are storing your data in .rrd files, this is not possible. This 
>is due to the way RRDTool averages the data points over time. The 
>graphs are generated on the fly from the .rrd files, and the data 
>points that make up the graphs that you see today are not going to be 
>around a week from now. However, the routers2.cgi front-end has been 
>developed with some 'graph archiving' code that enables you to archive 
>specific graphs. So, if you look into this further, it may allow you to 
>archive your daily graphs and be able to refer back to them at a future 
>date. While I use routers2.cgi (http://www.steveshipway.org/), I have 
>not tested nor used the archive feature, so I can't offer you much more 
>detail.
>
>HTH
>
>Garry W. Cook, CCNA

Sure, you can certainly do this.  You just need to adjust the 5 minute 
RRA when you create the RRD.  There is a section in cfgmaker that 
defines what RRA's are created within an RRD, and you just need to 
increase this.  We are using regular MRTG to poll the values, 
14all to display, and a custom program to select a specific 24 hour 
period to show 5 minute values for any day since we started the collection 
for up to a year (in some cases up to 4 years) back.

Paul




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