[Xymon] Discarding Powershell client CPU negative values

Scot Kreienkamp Scot.Kreienkamp at la-z-boy.com
Wed Dec 14 16:22:00 CET 2016

Hi list,

I have a powershell client that is occasionally reporting negative values for CPU usage.  Since that's not possible I wanted to pass along this easy modification for load average in the graphs.cfg for any clients that want to get rid of the negative values on their graphs.  This doesn't remove them from the RRD, just discards values below 0 and above 1000 when generating the graph.  Load cannot be negative so this may be something to include in the base configuration.

Here's a diff:

<       CDEF:la_min0=avg,100,/
<       CDEF:la=la_min0,0,1000,LIMIT
>       CDEF:la=avg,100,/

And here's what my graphs.cfg looks like now:
        TITLE CPU Load
        YAXIS Load
        AREA:la#00CC00:CPU Load Average
        -u 1.0
        GPRINT:la:LAST: \: %5.1lf (cur)
        GPRINT:la:MAX: \: %5.1lf (max)
        GPRINT:la:MIN: \: %5.1lf (min)
        GPRINT:la:AVERAGE: \: %5.1lf (avg)\n

Scot Kreienkamp | Senior Systems Engineer | La-Z-Boy Corporate
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