using Perl with rrdtool to create and update graphs
Hi guys,
im having real difficulty getting my head around perl and rrdtool and was hoping someone could help
I want to run a perl script from cron which retrieves the data every 5 mins, creates .rrd's if not already created, and updates the DS from the reultsHash or $key, then creates the graphs
Because the OID i use are dynamic i have to snmpwalk a table which is fine.
To obtain the data i use:
to prove it works i print out the data.
i want to create an .RRD for each pass so im trying to put this into a for loop:
so in princible i should be able to do the following, but the .rrd's dont get created ????
Am i doing something fundamentially wrong here ?
I would expect the creation of rrd's to have worked. I get the error
Use of uninitialized value in concatenation (.) or string at ./st.pl line 52.
Can anyone advise me on what this means??
Many thanks in advance
Jeffers
Last edited by pludi; 05-30-2010 at 07:51 AM..
Reason: Disabled smiles in code for readability
I have this code that gives this error on Linux and will be grateful if you can help
import rrdtool
try:
ret_asd = rrdtool.update(myfile.rrd,'N:%s:%s' %(metric1, metric2));
except rrdtool.error, e:
print e
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