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event2vrule(1) [debian man page]

EVENT2VRULE(1)						      General Commands Manual						    EVENT2VRULE(1)

event2vrule - adds 'events' to rrdtool graphs SYNOPSIS
event2vrule <params> DESCRIPTION
Adding Events to Graphs There is a new graphing feature which allows you to specify events that should be displayed in your graphs. These events are simply a list of points in time at which something of interest occurred. For instance, one could create a plain text file in the graphs directory called events.txt containing these lines: 2001/02/10 1538 added support for events to FlowScan graphs 2001/02/12 1601 allowed the events file to be named on make command line Then to generate the graphs with those events included one might run: $ make -f events=events.txt This feature was implemented using a new script called event2vrule that is supplied with FlowScan. This script is meant to be used as a ``wrapper'' for running rrdtool(1), similarly to how one might run nohup(1). E.g.: $ event2vrule -h 48 events.txt rrdtool graph -s -48h ... That command will cause these VRULE arguments to be passed to rrdtool, at the end of the argument list: COMMENT: VRULE:981841080#ff0000:2001/02/10 1538 added support for events to FlowScan graphs COMMENT: VRULE:982015260#ff0000:2001/02/12 1601 allowed the events file to be named on make command line COMMENT: SEE ALSO, add_txrx(1), flowscan(1), ip2hostname(1), locker(1) AUTHOR
This manual page was written by Anibal Monsalve Salazar, for the Debian Project. EVENT2VRULE(1)

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MRTG-RRD(1)							       mrtg							       MRTG-RRD(1)

mrtg-rrd - How to use RRDtool with MRTG SYNOPSIS
After using MRTG for some time you may find some limitations, mostly in the areas of performance and graphing flexibility. These are exactly the areas addressed by RRDtool. To learn more about RRDtool check out its website on RRDTOOL INTEGRATION
When using mrtg with RRDtool you are replacing rateup with the RRDtool perl module To enable RRDtool support in mrtg you have to add the line LogFormat: rrdtool to your mrtg config file. MRTG needs access to both the RRDtool perl module and to the rrdtool executable. If these two items are not installed in locations where perl can find them on its own, then you can use the following two parameters to supply the appropriate directories. For the location of the rrdtool executable you put PathAdd: /usr/local/rrdtool/bin/ or PathAdd: c: rdtoolin For the location of the perl module it would be: LibAdd: /usr/local/rrdtool/lib/perl/ or LibAdd: c: rdtoolinlibperl When you have made this modification to the configuration file, several things will happen when you run mrtg again with the new config file: 1. mrtg will take all your old ".log" files and convert them to ".rrd" format. (The ".log" files don't get touched in the process, so if things don't work out they are still there.) 2. mrtg will use rrdtool to update its databases. These will have a new format called rrd which is totally different than the native log format of the classic mrtg. 3. mrtg will not create any webpages of graphs anymore. It will only query the routers for traffic information and update its rrd databases. The advantage of whole thing is that the mrtg will become much faster. Expect the runtime to drop to 20% of the previous value. (I would like to get some feedback on this from folks with large installations.) Mind you, though, while the logging process of RRDtool is very fast, you are also gaining some time by neither creating graphs nor updating webpages. The idea behind this is that it is more efficient to create graphs and webpages on demand by using a cgi script. At the moment there is no official script to do this, but two contributers have created such scripts: One4All aka 14all.cgi This was the first program to take over the webpage creation and graphing task. It has been developed by Rainer Bawidamann You can find a copy on Rainers website: The program comes with its own documentation routers2.cgi This is another CGI frontend for mrtg running with rrdtool. The main difference between this and 14all is that the web pages it creates are much more stylish than the ones from mrtg, plus they support User Defined summary graphs and different levels of Authentication and Authorisation. This has been written by Steve Shipway ( You obtain a copy, and find a forum and demonstration system at The program comes with its own installation instructions and install script. mrtg-rrd The mrtg-rrd script is a CGI/FastCGI application by Jan "Yenya" Kasprzak for displaying MRTG graphs from data in the RRDtool format. It is an intended replacement for the 14all.cgi script. It can make your monitoring system faster because MRTG does not have to generate all the PNG files with graphs every 5 minutes or so. Instead of this the graphs are generated on-demand when the user wants to see them. FUTURE
Just as a side note: MRTG-3 will be based entirely on rrdtool technology. But don't wait for it ... get going now! AUTHOR
Tobias Oetiker <> 2.17.4 2012-01-12 MRTG-RRD(1)
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