Newbie: hosts and items defined, but no evidence that data is being collected

[catdude]

I've installed Zabbix 2.4.1 on one of my machines, and zabbix_agentd on the zabbix machine and 3 other servers. I've created a host entry for server ffmpeg1 and added some items (some simple checks and some zabbix agent items).

After leaving the system running overnight, I went to Monitoring/Latest Data, hoping to see some data, but there's nothing there.

I verified that the agent is running on ffmpeg1 by telneting to port 10050 and entering "system.cpu.load" and observing the value. Ditto on the zabbix server itself - I can talk to port 10050 on localhost and query values with no problem.

/var/log/zabbix/zabbix_server.log contains :
<startup lines omitted for space>
20582:20141212:083405.252 server #3 started [poller #1]
20598:20141212:083405.254 server #18 started [http poller #1]
20600:20141212:083405.254 server #20 started [history syncer #1]
20603:20141212:083405.255 server #23 started [history syncer #4]
20602:20141212:083405.255 server #22 started [history syncer #3]
20604:20141212:083405.255 server #24 started [escalator #1]
20606:20141212:083405.256 server #26 started [self-monitoring #1]
20605:20141212:083405.256 server #25 started [proxy poller #1]
20580:20141212:083405.266 server #1 started [configuration syncer #1]
20599:20141212:083405.376 server #19 started [discoverer #1]
20588:20141212:083511.287 cannot send list of active checks to [10.0.0.4]: host [ffmpeg3] not found

What's interesting about that last line is that I installed zabbix_agentd on ffmpeg3, but I have not created a host entry for it in zabbix.

What do I need to look at to determine why I'm not collecting data?

I don't know if it's related, but I do have SELinux set to permissive mode.

[catdude]

Update: data is being gathered, but not easily displayed on &quot;Latest Data&quot; page

It appears that I'm experiencing the issue described in https://www.zabbix.com/forum/showthr...est+data+empty - if I enter a host name in the search box and click "Search", I am presented with data.

I will follow up through the other thread.

[aib]

20588:20141212:083511.287 cannot send list of active checks to [10.0.0.4]: host [ffmpeg3] not found

What's interesting about that last line is that I installed zabbix_agentd on ffmpeg3, but I have not created a host entry for it in zabbix.

Let me guess: you installed Zabbix Agent on ffmpeg3 and configured not only

Server=ip_address_of_zabbix_server

but also

ServerActive=ip_address_of_zabbix_server

And now the zabbix agent asks the server from "ServerActive=" description about the list of Active Checks.

If you don't have any Zabbix Agent(active) checks - please, never configure "ServerActive=" key.

Please, don't do it. And thank you...

[catdude]

Yep, that's exactly what I did. Thanks for pointing that out!

My zabbix_agentd.conf now contains:
PidFile=/var/run/zabbix/zabbix_agent.pid
LogFile=/var/log/zabbix/zabbix_agentd.log
LogFileSize=50
EnableRemoteCommands=1
LogRemoteCommands=1
Server=10.0.0.50
Timeout=20

and I've restarted zabbix-agentd on all machines, so that ought to help.

[aib]

In Monitoring -> Latest data tab there is small legend "Show filters" arounded by double arrows down.
Click on it, fill up the field "Hosts" or "Host Groups" - and click on "Filter"

Then your last settings will be remembered until next change.

[catdude]

Excellent! That now displays exactly as I wanted it to.

Thank you so much!