Cheshire Cat Computing

Steve,

I am currently using routers2, MRTG, and RRDtool to graph many different devices. One of such devices is a Wireless access point. One of the OID's I am trying to graph is the number of currently connected clients. I can retrieve this value from command line via smtpwalk and via a utility called getif. Both of these return a whole number value, ie 3 for 3 current clients.

For some reason when I have routers2 try and graph this for me it keeps returning a decimal value. If the current clients is 4 at the time it may graph 3.6 or 3.8 instead of 4. Because of this the graphs show values that are between whole numbers.

I have tried using the gauge option and have also tried deleting the .rrd files and letting routers2 re-create them without success.

Any advice you could offer would be appreciated.

Thanks

This is actually caused by RRDtool averaging the samples over the intervals.

You can, however prevent this.

Use 'Options[]: integer' to force all numbers to be displayed as integer. You can also use 'routers.cgi*Options[]: fixunit' to prevent the k prefix for numbers over 1000. More details in the doc/MRTG_INFO file.

_________________
Steve Shipway
UNIX Systems, ITSS, University of Auckland, NZ
Woe unto them that rise up early in the morning... -- Isaiah 5:11

Steve,

I actually already tried this as a fix. Using options[]: integer does make the numbers on the legend below show up as whole numbers, but the graphs still reflect the decimal values that are being pulled. Is there any way to make the graphs reflect the whole numbers as well?

Thanks

No, the graph functions are done by the RRDTool library, and it picks how to display the lines. If you have option integer already, this is being passed to RRDTool but I have no more control over how the line is displayed. Also, once you start looking at the weekly and larger graphs, these are showing averages which can very possibly be non-integers.

_________________
Steve Shipway
UNIX Systems, ITSS, University of Auckland, NZ
Woe unto them that rise up early in the morning... -- Isaiah 5:11

Steve,

I thought that might be the case. I'll just have to deal with the graphs being like that. Thanks for all you do and have done Steve. Your software is a life saver.

Thanks