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| The Holt-Winter alghoritm http://www.steveshipway.org/forum/viewtopic.php?f=15&t=791 |
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| Author: | userFromItaly [ Tue Jan 17, 2006 12:48 am ] |
| Post subject: | The Holt-Winter alghoritm |
Hi all, I'm using mrtg, RRDTool and routers2.cgi. I have modificated the script mrtg to use the Holt-Winter prediction. Then I have more CONSOLIDATION FUNCTIONS (HWPREDICT, SEASONAL..). I'd like to draw this prediciton with the routers2.cgi. Where can I modify, HOW can I do this? |
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| Author: | userFromItaly [ Tue Jan 17, 2006 12:58 am ] |
| Post subject: | The Holt-Winter alghoritm |
I'd like to use routers2.cgi to create other graphs.. is it possible? |
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| Author: | stevesh [ Tue Jan 17, 2006 9:18 am ] |
| Post subject: | |
routers2 makes a number of assumptions about the .rrd files, specifically in the type and length of RRAs and the names of the DSs. This is because it expects the RRD to have been created by MRTG. You could use routers2 to graph data collected by other applications (we do this here) but you would need a dummy .cfg file for the RRD (so that routers2 can know how to display it) and it would have to conform to MRTG standards. The new prediction RRAs available in RRDTool 1.2 are very interesting, and I'm going to be looking at adding them to standard routers2. However they are not added to a MRTG-created RRD by default, and you'd need to modify your RRD files to add this feature. If you're a perl scripter, then the functions you should look at are make_graph (which does the parameters common to all graphs, such as time period), rtr_params (which does the parameters for a single target graph), and usr_params (which does the parameters for userdefined combination graphs). calc_percentile does the 95th percentile and total calculations, if required. |
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