Hi Cameron,
thanks for your help;

I finally solved the problem ... the last line of the observium file in /etc/cron.d (*/5 * * * * root /opt/observium/poller-wrapper.py 1 >> /dev/null 2>&1) was not taken into account, so no polling was performed !

By just adding a new comment line after this last line, the poller command was taken in account;

Linux newbie error, I guess ; shame on me ;)

for newbies like me, the clue was to check the /var/log/cron file : no entry was found for the poller command that made me suspect something was wrong with this last line ...

thanks to all who helped

2014-09-05 16:52 GMT+02:00 Adam Armstrong <adama@memetic.org>:

Yeah, it works if you can make it work.

If it doesn't work, just install it on Ubuntu. It's easier, and really is a condition of any of the development team helping with installation problems.

adam.

On 2014-09-05 14:50, Moore, Cameron wrote:

Works fine for me with CentOS 6.5.

Try going directly to one of the RRD graph image URLs (should be
something like "/graph.php?...". Then add "&debug" to the end of the
URL and see what you get in the debug output.
--
Cameron Moore
Manager of Systems & Networks
Hardin-Simmons University, Technology Services
Ph: (325) 670-1506 Fx: (325) 670-1570

-----Original Message-----
From: observium [mailto:observium-bounces@observium.org] On Behalf Of
Adam Armstrong
Sent: Thursday, September 04, 2014 12:03 PM
To: Observium Network Observation System
Subject: Re: [Observium] Empty graphs

Install it on Ubuntu.

adam.

On 2014-09-04 17:58, Joel wrote:
Hi all,

just installed Observium CE 0.14.4.5229 on a CentOS 6.5 64bits in
VMware Workstation 9 environment : no problem thanks to well done
install procedure (http://www.observium.org/wiki/RHEL_Installation
[1]);

added manually network devices via following commands with no errors :
./add_device.php xxx.xxx.xxx.xxx

./discovery.php -h all
./poller.php -h all

crontab updated as stated in install procedure ;

Everything seems OK during all these steps ;

When looking at the results via web interface, I can see all (CISCO
here) devices with all their discovered characteristics (type/model,
soft version, interfaces, % RAM, % CPU, thruput figures on interfaces,
...) but no graph is drawn at all (even after 4 hours) ;

by the way, the graphs legends are correclty, and the grids too, but
no curve drawn;

when looking at /opt/observium/rrd directory, I can see a sub-dir
created per each disvovered device and inside each of them, 1 RRD
file created for each collected variable ;

(each device RRD subdir is about 40MB after a while, RRD files inside
are not empty)

Any idea to investigate more about those empty graphs ?

thanks for any help

Links:
------
[1] http://www.observium.org/wiki/RHEL_Installation

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