By looking at the web interface or on the server directly?
Cacti poller not updating rrd
I still cannot figure out why the data is not collecting in the graphs.
I'm guessing somehow I have improperly setup poller settings?
RRDTool Command: /usr/bin/rrdtool graph - \ --imgformat=PNG \ --start=-86400 \ --end=-300 \ --title=' Localhost - Load Average' \ --rigid \ --base=1000 \ --height=120 \ --width=500 \ --alt-autoscale-max \ --lower-limit=0 \ --units-exponent='0' \ --vertical-label='processes in the run queue' \ --slope-mode \ --font TITLE:10: \ --font AXIS:7: \ --font LEGEND:8: \ --font UNIT:7: \ DEF:a="/var/lib/cacti/rra/localhost_load_1min_5.rrd":load_1min: AVERAGE \ DEF:b="/var/lib/cacti/rra/localhost_load_1min_5.rrd":load_5min: AVERAGE \ DEF:c="/var/lib/cacti/rra/localhost_load_1min_5.rrd":load_15min: AVERAGE \ CDEF:cdefg=TIME,1417293918, GT,a,a, UN,0,a, IF, IF, TIME,1417293918, GT,b,b, UN,0,b, IF, IF, TIME,1417293918, GT,c,c, UN,0,c, IF, IF, , \ AREA:a#EACC00FF:"1 Minute Average" \ GPRINT:a: LAST:" Current\:%8.2lf\n" \ AREA:b#EA8F00FF:"5 Minute Average": STACK \ GPRINT:b: LAST:" Current\:%8.2lf\n" \ AREA:c#FF0000FF:"15 Minute Average": STACK \ GPRINT:c: LAST:"Current\:%8.2lf\n" \ LINE1:cdefg#000000FF:"" RRDTool Says: OK If under “RRDTool Says:” you see something about not existing file, then you should check permissions to your rra folder. So this folder should have write permissions for www-data user (or your web server user).
If a spot under “RRDTool Says:” is empty, then you should check if rrdtool is working well.
Go to ssh and run command that you see in cacti, but add redirection to a file.
If rrdtool generate the valid file it means you probably have problems with your php configuration.
I think the problem exists in the step: write values to rrd files. PS: The problem even exists in Localhost - Load Average, after a clean cacti try to delete all rrd on ./rra/ folder ? your rrd "ds[cisco_memfree]= 1.0000000000e 12", is the snmp results that you saw on debug log exceeded the limit "ds[cisco_memfree]= 1.0000000000e 12" ?
I have developed my own SNMP service, and i want to plot a graph of an OID provided. For 5 minutes polling, the step will be 300 and the heartbeat will be 600.
I tried rebooting; changing parameters in the Configuration Settings but noting helped to solve the issues. MYI are too huge and mysqld used a lot of resources.