problem with Y-axis of traffic graphs

[yuval_ba]

Hi,
I started to have strange problem with the Y-axis of my traffic graphs.
Sometimes the Y-axis of the graph has wrong scaling on the top for some graphs.
See attached image.

Capture.PNG (13.37 KiB) Viewed 490 times

Any idea why is it happening?
I'm using:
Cacti 0.8.7g
RRDtool 1.2.27
and also using custom made RRA to support 1min polling.

Thanks

some more details:

graph_image.php.png (42.64 KiB) Viewed 481 times

Code: Select all

RRDTool Command:

/usr/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-60 \
--title='Hostname - Traffic - ethernet0/2' \
--rigid \
--base=1000 \
--height=180 \
--width=600 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label='bits per second' \
--slope-mode \
--font TITLE:10: \
--font AXIS:8: \
--font LEGEND:8: \
--font UNIT:8: \
DEF:a="/var/www/html/cacti/rra/hostname_traffic_in_1553.rrd":traffic_in:MAX \
DEF:b="/var/www/html/cacti/rra/hostname_traffic_in_1553.rrd":traffic_out:MAX \
CDEF:cdefa=a,8,* \
CDEF:cdefe=b,8,* \
AREA:cdefa#00CF00FF:"Inbound"  \
GPRINT:cdefa:LAST:" Current\:%8.2lf%s"  \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf%s"  \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf%s\n"  \
LINE1:cdefe#002A97FF:"Outbound"  \
GPRINT:cdefe:LAST:"Current\:%8.2lf%s"  \
GPRINT:cdefe:AVERAGE:"Average\:%8.2lf%s"  \
GPRINT:cdefe:MAX:"Maximum\:%8.2lf%s\n" 

RRDTool Says:

OK

[gandalf]

Are you able to upgrade rrdtool or at least try to do a parallel installation? I fear that this issue is related to rrdtool, not cacti
R.

[yuval_ba]

Thanks! that seemed to solve it!
I just built new rrdtool-1.4.5 and set cacti to use it and now all graphs looks ok.

I must mention that I was using latest CentOS rrdtool package:

Package rrdtool-1.2.27-3.el5.x86_64 already installed and latest version
Package rrdtool-1.2.27-3.el5.i386 already installed and latest version
Nothing to do

So others might be facing the same problem...

Yuval