problems with rrdtool

[tpe]

I am having some issues with Cacti and RRDTool. Specifically, when I create a data source the RRD file never gets created.

I turned on debug mode in the web UI and can see the rrdtool command line. When I paste it into the shell it works fine (without the last \). Permissions on the rra directory are wide open (777) so it's not a permission issue.

I temporarilly replaced /usr/bin/rrdtool with a small perl script to log the cmdline args and then call the real rrdtool. My script says it never got executed.

Some specifics about my installation
Using SuSE 9.3 Professional
RRDtool 1.0.49 (installed from RPM rrdtool-1.0.49-3)
Cacti (installed from RPM cacti-0.8.6c-3)

Data Source Debug

/usr/bin/rrdtool create \
/var/lib/cacti/localhost_ms_19.rrd \
--step 300 \
DS:queries:GAUGE:600:0:100 \
DS:ms:GAUGE:600:0:U \
RRA:AVERAGE:0.5:1:600 \
RRA:AVERAGE:0.5:6:700 \
RRA:AVERAGE:0.5:24:775 \
RRA:AVERAGE:0.5:288:797 \
RRA:MAX:0.5:1:600 \
RRA:MAX:0.5:6:700 \
RRA:MAX:0.5:24:775 \
RRA:MAX:0.5:288:797 \


Cacti did create the rrds for localhost memory/load/etc and they are updating fine.

Can anyone make a suggestion?
Thanks much,
-Terry