Cmk -II on master or distributed

[philippe (Philippe Duthoit)]

Hi Forum,

I have this very slooooow snmp device which I cannot scan due to time outs on the webinterface
So cli to the rescue, but when I do a “cmk -II host” I get

Hostname or tag specification 'host' does not match any host.

but when I perform a -D dump check I get the proper details

running the reinventory has the same behaviour on master as on slaves … I’m puzzled here

[aeckstein (Andre Eckstein)]

Hi Philippe,

the cmk -D <hostname> has to be executed in the site on the satellite where the host is assigned via the folder structure.
Have you really checked the output on the master ?
It might be, that the output is just a dummy output, because cmk -D nonexistent also outputs things that look valid at first glance:

nonexistent
Addresses:              0.0.0.0
Tags:                   [address_family:ip-v4-only], [agent:cmk-agent], [criticality:prod], [networking:lan], [piggyback:auto-piggyback], [site:monitoring], [snmp_ds:no-snmp]
Labels:                 [cmk/site:monitoring]
Host groups:            check_mk
Contact groups:
Agent mode:             No agent
Type of agent:
  Process piggyback data from /omd/sites/monitoring/tmp/check_mk/piggyback/nonexistent
  PING only
Services:
  checktype item params description groups

[philippe (Philippe Duthoit)]

Andre,

I tested -II on both sides (central and satellite)

I only mentioned the -D option to show the host is present in our config

[aeckstein (Andre Eckstein)]

Hi,

If you want to analyze the root cause of the SNMP problem I recommend this Blog article:

Monitoring with SNMP: Troubleshooting in God Mode | Checkmk

And remember that the hostname has to be 100% correct and is case sensitive.

[philippe (Philippe Duthoit)]

The BlogPost you mention is about SNMP monitoring and tuning, not about inventory scans via cli (it only short mentions the syntax)
(trust me I’ve read this blog many times )