Hello, I have recently done a migration of my cacti server to a new machine.Everything has migrated fine, except now I notice my RRD graphs are no longer updating.
set the cacti logging to DEBUG and check all Poller Statistics, Poller Errors, Poller Warning options, check files, usually it will showing the output, you can start investigate from the log /rra/xxx.rrd". But when verify with "rrdtool info xxx.rrd", "rra.cdp_prep.value = Na N" displays. are you try using all patches on cacti website for your cacti version.
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" ?
An unsupported method would be to use VBScript to hide the This typically occurs when the NTFS permissions on or are not set correctly.
Both need Read/Execute rights by the web server's user account.
You can further check issues as such by manually polling the specific OID on that host: You can use the above command and OID (18.104.22.168.2.1) just to see if you're getting a reply.
If the poller couldn't get the data then it's usually an issue relating to connectiviy/SNMP.
All documentation is written for the default setup.
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.
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.