[rrd-users] Re: rpn expressions without DEF or CDEF variables are not supported

[Alex van den Bogaerdt]

On Thu, Aug 31, 2006 at 06:16:30PM -0700, Yee-Ting Li wrote:

> DEF:grid=service_grid_src.rrd:in_bytes:AVERAGE
> DEF:bulk=service_bulk_src.rrd:in_bytes:AVERAGE
> CDEF:bits=grid,8,*
> CDEF:total=grid,bulk,+
> VDEF:gridTotal=grid,TOTAL
> VDEF:bulkTotal=bulk,TOTAL


this is the line failing:
> CDEF:sumTotal=gridTotal,bulkTotal,+


> LINE1:bits#ff0000:bits
> PRINT:total:AVERAGE:%.3lf%sbytes
> PRINT:gridTotal:%.6lf
> PRINT:bulkTotal:%.6lf
> PRINT:sumTotal:%6lf%sTOTAL


> however, it complains that:
> 
> rpn expressions without DEF or CDEF variables are not supported

Try this: CDEF:sumTotal=grid,POP,gridTotal,bulkTotal,+
or        CDEF:sumTotal=grid,grid,-,gridTotal,bulkTotal,+

or similar workarounds.

-- 
Alex van den Bogaerdt
http://www.vandenbogaerdt.nl/rrdtool/

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