Applying right axis formatting creates an error-image

[gj00354347]

Hi Team ,

we are on cacti 1.2.18 and using rrdtool 1.7.2 and we have a graph for monitoring mysql KPI where we are plotting values on left as well as on right side of axis .

so we have applied a --right-axis-format = Normal (Gprint which is = %8.2lf %s' ) and using this right-axis-format creates an error image as attached below .

but when we apply the --right-axis-format=%8.2lf it works , so to summarize .

*Failing option: --right-axis-format '%8.2lf %s'
Working option: --right-axis-format '%8.2lf' *

here is what rrdtool says

/rrdtool/1.7.2/bin/rrdtool graph -
--imgformat=PNG
--start='-86400'
--end='-300'
--pango-markup
--title='ABC-Host - Cacti DB Stats - Connections'
--vertical-label='connections'
--slope-mode
--base=1000
--height=200
--width=700
--right-axis '0.004:0'
--right-axis-label 'aborts'
--right-axis-format '%8.2lf %s'
--upper-limit='500'
--lower-limit='0'
COMMENT:"From 2021-10-18 08:48:13 To 2021-10-19 08:43:13\c"
COMMENT:" \n"
--color BACK#F3F3F3
--color CANVAS#FDFDFD
--color SHADEA#CBCBCB
--color SHADEB#999999
--color FONT#000000
--color AXIS#2C4D43
--color ARROW#2C4D43
--color FRAME#2C4D43
--border 1 --font TITLE:11:'Arial'
--font AXIS:8:'Arial'
--font LEGEND:8:'Courier'
--font UNIT:8:'Arial'
--font WATERMARK:6:'Arial'
--slope-mode
--watermark 'ABC Company® prod'
DEF:a='/rra/1/285921.rrd':'ConnAbrt':AVERAGE
DEF:b='/rra/1/285921.rrd':'ConnAbrtClient':AVERAGE
DEF:c='/rra/1/285921.rrd':'Connections':AVERAGE
DEF:d='/rra/1/285921.rrd':'ConnMax':MAX
DEF:e='/rra/1/285921.rrd':'ConnMax':AVERAGE
CDEF:cdefa='a,250,'
CDEF:cdefe='b,250,'
CDEF:cdefbg='e,UN,INF,0,IF'
AREA:cdefa#FF0000FF:'aborted connections '
GPRINT:a:LAST:'Cur:%8.2lf %s'
GPRINT:a:AVERAGE:'Avg:%8.2lf %s'
GPRINT:a:MAX:'Max:%8.2lf %s\n'
LINE1:cdefe#D4A017FF:'aborted clients '
GPRINT:b:LAST:'Cur:%8.2lf %s'
GPRINT:b:AVERAGE:'Avg:%8.2lf %s'
GPRINT:b:MAX:'Max:%8.2lf %s\n'
LINE2:c#000000FF:'connections '
GPRINT:c:LAST:'Cur:%8.2lf %s'
GPRINT:c:AVERAGE:'Avg:%8.2lf %s'
GPRINT:c:MAX:'Max:%8.2lf %s\n'
LINE2:d#F52887FF:'max parallel connections'
GPRINT:d:LAST:'Cur:%8.2lf %s'
GPRINT:d:AVERAGE:'Avg:%8.2lf %s'
GPRINT:d:MAX:'Max:%8.2lf %s\n'
AREA:cdefbg#ffffc0FF:'no data \n'
COMMENT:' \n'
COMMENT:'Threshold Alert/Warning Values\n'
LINE1:6000#E41B17:'Alert Hi for |data_source_description| - ABC (6,000)':skipscale
LINE1:5000#800517:'Warning Hi for |data_source_description| - ABC (5,000)':skipscale
RRDtool Command lengths = 2144 charaters.
RRDtool Says:
ERROR: invalid format string '%8.2lf %s' (should match '^(?:[^%]+|%%)%[-+ 0#]?[0-9](?:[.][0-9]+)?leEfFgG*$')

To Reproduce

Please create a graph and on --right-axix-format please apply a gprint which is = %8.2lf %s and you will see error.

Expected behavior

an error graph and when you enable the debug , console->management->graphs->select that graph->enable graph debug and you see rrd too complains f the below issue.
ERROR: invalid format string '%8.2lf %s' (should match '^(?:[^%]+|%%)%[-+ 0#]?[0-9](?:[.][0-9]+)?leEfFgG*$')

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Additional context

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[TheWitness]

That looks almost like something to do with RRDtool. I'll take a closer look.

[TheWitness]

@gj00354347, can you upload a screen shot of the entire template. Do two or three screen shots so that it's readable.

[TheWitness]

Can you open a ticket with Tobi too. His documentation site does not give many examples. This might be an RRDtool bug possibly.

[TheWitness]

Looks like you are using the Right Axis format of Normal. See if the others work.

[TheWitness]

Pretty sure this is fixed. It makes sense that they would not allow this. Weird though. It almost seems like an RRDtool bug. Track it down with Tobi.

[TheWitness]

@gj00354347, any updates?

[gj00354347]

sorry larry for the late response ,

yes you are right as said in the ticket we are using --right-axis-format NORMAL .

*Failing option: --right-axis-format '%8.2lf %s'
Working option: --right-axis-format '%8.2lf' *

and if I remove Normal to None and reapply the suggested name , it works .

see snap after changing --right-axis-format from NORMAL (=%8.2lf %s) to NONE.

then changed back to --right-axis-format=normal in template and see it stopped working

PFB snap of Graph template having --right-axis-format=NORMAL

yes and after making --right-axis-format=NORMAL , the graphs again disappear with message

let me know if more info is required ??

[TheWitness]

Log a bug at RRDtool for now. In 1.2.19 at least, anything with a %s format character will not be allowed for the right axis. That change is already committed.

[TheWitness]

In the mean time, we will keep this resolved, and when RRDtool starts supporting the format character, we can consider reintroducing it.