Proc.Num returns 0 in zabbix 3.4.11

[ben maina]

ingus.vilnis The output is as follows:

proc.num[,,,apache2] [u|12]

[ben maina]

zux Regarding this:

'I'm starting to think, that the host you are trying to monitor and the one you are getting data from are different.
'

its the same server

[zux]

please try to rename it to something unique, and see what happens.

[ben maina]

zux ingus.vilnis iwas trying to monitor the apache service in the zabbix server but its not working.When i tried to monitor another service in another server proc.num [redis-server,redis] it works perfect.Not sure whats happening to my zabbix server. it cannot monitor its own services.

[ingus.vilnis]

Set the item type to be " Zabbix agent" instead of active. Do you receive values then?

If yes, then there is a hostname mismatch between the agent configuration file (setting "Hostname) and web interface (field "Host name"). They must be completely identical for active checks to work. Restart the agent if you made any changes in the agent config file. Then the active should also function.

[ben maina]

ingus.vilnis about this: Set the item type to be " Zabbix agent" instead of active. Do you receive values then?

I have reset to zabbix agent and now am getting the correct values.Thanks.

However i have rechecked what i have on the zabbix UI hostname and i have confirmed it similar to what is in the server,

[zux]

similar or exactly the same?
If there is another zabbix agent running, that also has ServerActive configured with the same address and has the same hostname, it will also insert data into that item. That's why you need to change this to something unique and look at logs if there are errors about active agent from another address

[ben maina]

zux Its exact but on my server logs i can see error regarding active checks for that problematic server.I gues if i rectify that then it should work

[ben maina]

kloczek zux ingus.vilnis Thanks guys.I have been able to resolve this.

Problem: on my zabbix agent config file for the zabbix server i hadnt put the hostname to be exact like the actual servers hostname. in the agent config file hostname = zabbix server instead of Hostname = monitorserver.

Solution: Resolved the hostname issue and zabbix agent active can now monitor my processes well.

Thanks alot guys for your support and troubleshooting.