problems setting to 'derive'
list Diffusion
Hello,
I'm using 2 test using same data to compare the difference between gauge & derive (derive is the best choice, because data that is continuously increasing in value between 00:00 and 23:59
When graph using Gauge, values are correct :
field03a: 5
field03b: 17
field03c: 14
field04a: 3
field04b: 12
field04c: 15
Total: 66
=> same values in graph
But when i switch to derive, values in graphs look like
field03a: 6m
field03b: 4m
field03c: 5.8m
field04a: 4m
field04b: 2m
field04c: 2m
Total: 0
Maybe i'm understing correctly 'derive' or there another things goes wrong ?
Graph Definition
[LogMsg]
TITLE Nb 'Erreurs Sérieuses' par svi
YAXIS Qtt
-l 0
DEF:field03a=LogMsg.rrd:field03a:AVERAGE
DEF:field04a=LogMsg.rrd:field04a:AVERAGE
DEF:field03b=LogMsg.rrd:field03b:AVERAGE
DEF:field04b=LogMsg.rrd:field04b:AVERAGE
DEF:field03c=LogMsg.rrd:field03c:AVERAGE
DEF:field04c=LogMsg.rrd:field04c:AVERAGE
DEF:Total=LogMsg.rrd:Total:AVERAGE
LINE1:Total#1AEAEC:Total
LINE2:field03a#18D859:svi03a
LINE2:field04a#1D8A42:svi04a
LINE2:field03b#D50038:svi03b
LINE2:field04b#81112E:svi04b
LINE2:field03c#182DD8:svi03c
LINE2:field04c#171F63:svi04c\n
GPRINT:Total:LAST: Stats de Total \: cur=%5.0lf
GPRINT:Total:MIN: min=%5.0lf
GPRINT:Total:MAX: max=%5.0lf
GPRINT:Total:AVERAGE: moyenne=%5.0lf\n
Ncv def :
NCV_LogMsg="field03a:DERIVE,field03b:DERIVE,field03c:DERIVE,field04a:DERIVE,field04b:DERIVE,field04c:DERIVE,Total:DERIVE,*:NONE"
Someone have an idea ?
list W.J.M. Nelis
▸
Hello,
I'm using 2 test using same data to compare the difference between gauge & derive (derive is the best choice, because data that is continuously increasing in value between 00:00 and 23:59 When graph using Gauge, values are correct : field03a: 5 field03b: 17 field03c: 14 field04a: 3 field04b: 12 field04c: 15 Total: 66 => same values in graph But when i switch to derive, values in graphs look like field03a: 6m field03b: 4m field03c: 5.8m field04a: 4m field04b: 2m field04c: 2m Total: 0
See http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html. There you'll see that there is quite a difference between gauge and derive. The type of measurement and what you want to know determine which data type is appropriate. If you are interested in the number of serious errors reported per second, derive is an appropriate type. Set a minimum value of zero, to prevent negative spikes in the graphs. HTH, Wim Nelis. ****************************************************************************************************************** The NLR disclaimer is valid for NLR e-mail messages. This message is only meant for providing information. Nothing in this e-mail message amounts to a contractual or legal commitment on the part of the sender. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. Sender accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages. ******************************************************************************************************************
list Gbulot
▸
Le 2013-01-10 13:29, W.J.M. Nelis a écrit :
When graph using Gauge, values are correct : field03a: 5 field03b: 17 field03c: 14 field04a: 3 field04b: 12 field04c: 15 Total: 66
See http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html. There you'll see that there is quite a difference between gauge and derive. The type of measurement and what you want to know determine which data type is appropriate. If you are interested in the number of serious errors reported per second, derive is an appropriate type. Set a minimum value of zero, to prevent negative spikes in the graphs.
Hi, Thanks for your answer. Minimum value already set (-l 0 on my first post) My max data value is about 400 (very lower than limit of a integer)