Cacti graphs stopped updating

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.

If it's not updating with data then you should change the cacti log level to DEBUG via the settings page on Cacti's web UI and look for appropriate messages.I see error messages stating "Waiting on 1/1 pollers." for a couple of rrd files. I'm thinking that the poller might have hung while waiting (maybe it waited until the next polling period started? Here's one of the messages: 6/08/2009 AM - POLLER: Poller[0] CACTI2RRD: /usr/local/bin/rrdtool update /var/www/html/cacti/rra/net3_5510_traffic_in_8--template traffic_in:traffic_out 1244464503:7650926 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.01 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 OK u:0.01 s:0.02 r:2.36 Waiting on 1/1 pollers. In reply to your comment that file/directory ownership/permissions may be the issue, I will share what I have found to be useful for my Cacti installations that run on Open BSD (aka, your placement and syntax may vary with other systems): chown -R www:www /var/www/htdocs/* echo 'web directories reset to www:www ownership' chmod -R 777 /var/www/htdocs/cacti/plugins/* chmod -R 777 /var/www/htdocs/cacti/log/* chmod -R 777 /var/www/htdocs/cacti/rra/* echo 'cacti plugin, log, and rra directories set to full r,w,x' I use weathermaps heavily in cacti and often find myself having to reset permissions over and over throughout and this has save me the headache of thinking about it constantly.777 may be too open for these sections security-wise, and if so, I would gladly appreciate a better setting to be mentioned that still provides usability of the application.

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