Folder permissions are most likely to be the issue.
if you created the rrd folder using, for example, 'root' it's not always granted (or even wanted ;) ) that other users can access it. All graphs are made under the 'www-data' user on Debian (CentOS might have a different name&uid)
Make sure www-data (resp. whatever CentOS or your distribution uses) has read-access to the rrd directory and it's listing, then graphs should be generated fine. (If SELinux is in use, some configuration-setups require the folder to be +x in order to be traversed - ask the guy who set up the policies to be sure)
Cheers, Daniel Preussker
[ Security Consultant, Network & Protocol Security and Cryptography [ LPI & Novell Certified Linux Engineer and Researcher [ Daniel@Preussker.Net [ http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x87E736968E490AA1
On 12.12.2013, at 06:39, Josh Hopper wrote:
Hrm.... I will check this in the AM and update. I thought I installed this to the letter....
Thanks.
Sam Gu sam.gu@92cloud.com wrote:
We had similar issue before and finally resolved. Please check your cron and rrd folder permission. Please note that the you cannot use cron -e to add task.
在 2013年12月12日星期四，Josh Hopper 写道： Hello Observium Members,
I have a slight issue with my graphs. I’ve installed the free version of Observium and can log into the web interface easily.
When I add a device to Observium using the CLI it has no issue adding the device. However, when I run a ./poller.php –h all it says that there is no rrd directory.
All the graphs have a “Data Error” on them.
So, I create the rrd folder and run again. Then data populates. However, it doesn’t list any graphics for the graphs.
The graph is present without issue but there is no traffic.
It is all of them (System, Netstats and Poller).
--
Sincerely,
Joshua Hopper, A+ CE
Network Administrator
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