graphed line does not match gprint value?

[phrawzty]

Hello all,

I've been using Cacti successfully for a couple of years now, and i haven't really felt the need to post too many questions during that period of time. Generally speaking, it works, and it works well.

Unfortunately, i've recently encounted a graph anomaly that's got me a little bit confused: on one of my graphs, the line doesn't appear to match the associated gprint value. Specifically, the line is consistently showing higher values than the "MAX" of its gprint. Some screenies:


(yes, i realise there are some gaps - i'm not concerned with them at this time.)

And if we zoom in:


As you can see, the dark blue "identified" line has numerous peaks in the 10 to 15 range; however, the associated gprint shows a MAX value of 6. Interestingly, the other two lines seem to match up with their gprint values properly. I'm not doing anything special to the items in the graph template (i.e. no CDEF functions, etc...) either.

Clearly, at least one of these is incorrect - but which one? I suspect the line is wrong, but i'm not sure. And why is there a discrepancy in the first place? Questions abound...

Thanks for the help all!

[gninja]

Check the cdefs on your graph source.

[phrawzty]

Check the cdefs on your graph source.

Thanks for the tip; however, as i mentioned in the top post:

I'm not doing anything special to the items in the graph template (i.e. no CDEF functions, etc...) either.

I'm open to further suggestions, though!

[TheWitness]

Do a few screen prints of both your line and gprint definition screen's and post them.

TheWitness

[gandalf]

When clicking on the graph, you'll notice some wrenches. Select one of them and post the whole rrdtool graph statement. That will definitively help to debug
Reinhard

[phrawzty]

When clicking on the graph, you'll notice some wrenches. Select one of them and post the whole rrdtool graph statement. That will definitively help to debug

As requested:
slightly sanitized

Code: Select all

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title="Incoming FuzzyOCR Statistics" \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="# per 5 mins" \
--slope-mode \
DEF:a="/opt/www/cacti/rra/YYY_fuzzyocrtotalscore_10207.rrd":fuzzyocrtotalscore:AVERAGE \
DEF:b="/opt/www/cacti/rra/YYY_fuzzyocrsinglescore_10206.rrd":fuzzyocrsinglescore:AVERAGE \
DEF:c="/opt/www/cacti/rra/YYY_fuzzyocridentified_10205.rrd":fuzzyocridentified:AVERAGE \
AREA:a#6DC8FE:"FuzzyOCR total score"  \
GPRINT:a:LAST:" Current\:%8.0lf"  \
GPRINT:a:AVERAGE:"Average\:%8.0lf"  \
GPRINT:a:MIN:"Min\:%8.0lf"  \
GPRINT:a:MAX:"Max\:%8.0lf\n"  \
LINE2:b#A150AA:"FuzzyOCR single score"  \
GPRINT:b:LAST:"Current\:%8.0lf"  \
GPRINT:b:AVERAGE:"Average\:%8.0lf"  \
GPRINT:b:MIN:"Min\:%8.0lf"  \
GPRINT:b:MAX:"Max\:%8.0lf\n"  \
LINE2:c#00004D:"FuzzyOCR identified"  \
GPRINT:c:LAST:"  Current\:%8.0lf"  \
GPRINT:c:AVERAGE:"Average\:%8.0lf"  \
GPRINT:c:MIN:"Min\:%8.0lf"  \
GPRINT:c:AVERAGE:"Max\:%8.0lf\n" 

Thanks for the assistance!

[rony]

FuzzyOCR identified

GPRINT:c:AVERAGE:"Max\:%8.0lf\n"

That gprint is set to the wrong consolidation function.

[phrawzty]

That gprint is set to the wrong consolidation function.

Hah - so it is. Thanks!