Hi Oliver
I’m afraid you’ll always need a DEF from somewhere. I’ve done plenty of
workarounds like this, including having an empty rrdfile that is never updated.
Usually I end up doing something like this to get just a 0 value...
DEF:foo=/some/empty/rrdfile.rrd:foo:AVERAGE
CDEF:myval=foo,POP,0
Hi,
2017-02-14 19:44 GMT+01:00 SolarMan :
> Hello Olivier,
> The error message is confusing and should actually read:
> rrdtool.OperationalError: rpn expressions without DEF or CDEF variables are
> not supported
> as it does in other cases.
> The meaning is clear: you must use a DEF or CDEF in y
Hello Olivier,
The error message is confusing and should actually read:
rrdtool.OperationalError: rpn expressions without DEF or CDEF variables are
not supported
as it does in other cases.
The meaning is clear: you must use a DEF or CDEF in your CDEF definition.
Regards,
hans
--
View this messa
Hello,
It seems "CDEF:mydefinition=0" is not handled correctly and gives this
error :
ERROR: don't undestand '0'
This expression is present in documentation though :
https://oss.oetiker.ch/rrdtool/tut/cdeftutorial.en.html
I'm using RRDtool 1.5.3
Is this a bug in software ? In documentation ?
