0.8.6b on FreeBSD 5.3 - Empty Graphs / NAN

[djblizzzard]

I just installed Cacti 0.8.6b via ports. The only problem I'm running in to is that for some reason my graphs are not plotting any information as if it's not receiving any. If you look at any that list min's or max's, they report report "nan". These are not custom scripts of any sort, I'm simply talking about graphs generated by Cisco Router templates, which I have done before on a Gentoo system without problems. It does appear that query's are workin to some degree in that if I go to the devices page, it will indicate the device information and snmp information that it queried from the device. So what could be going on here. I've played with the permissions of the cron user, but haven't looked too deep into my database as I haven't quite figured out what to look at yet. Suggestions?

I may have a chance to post one of the graphs to show what I'm seeing later tonight...

[JawsShark]

I just installed Cacti 0.8.6b via ports. The only problem I'm running in to is that for some reason my graphs are not plotting any information as if it's not receiving any. If you look at any that list min's or max's, they report report "nan". These are not custom scripts of any sort, I'm simply talking about graphs generated by Cisco Router templates, which I have done before on a Gentoo system without problems. It does appear that query's are workin to some degree in that if I go to the devices page, it will indicate the device information and snmp information that it queried from the device. So what could be going on here. I've played with the permissions of the cron user, but haven't looked too deep into my database as I haven't quite figured out what to look at yet. Suggestions?

If you haven't already fixed this, it sounds a lot like the user that is running your poller (i.e., the user who's crontab has the cacti poller in it, or who the cactid daemon is running as) doesn't have write access to your RRA files. The RRA files need to be writable by the poller user. If you're using an installation of cacti from the FreeBSD ports tree, it should have created a user named "cacti", and set the file permissions appropriately.

Good luck!