Python Plugin gets removed

[c4dburry (M)]

CMK version:2.1.0p1
**OS version: Debian 10 **
**Error message: none - no services found **

Hello CMK-Users,

i created my first Windows Plugin for the new agent. The plugin was written after the guidelines in the main documentation. [ Updates und Upgrades (checkmk.com)]

The powershell script works properly and delivers the correct output. I check that on the windows host and on the cmk server. On the cmk-server shell i can see the <<>> when i ask per cmk command as follows

cmk -d myserver01 | grep -A5 '^<<<rds_session_host'

I placed the corresponding python plugin in /omd/site/local/lib/check_mk/base/plugins/agent_based/ like the documentation says.

Now to the problem:
i cant get any services in the service configuration under the host.

I checked the Output with

cmk -II --debug --detect-plugins=rds_session_host myserver01

i tested also with following command:

cmk --debug -vvn myserver01

i get as output:

<<<rds_session_host>>> / Transition NOOPParser → HostSectionParser

→ Add sections: [‘check_mk’, ‘checkmk_agent_plugins_win’, ‘cmk_agent_ctl_status’, ‘df’, ‘dotnet_clrmemory’, ‘fileinfo’, ‘logwatch’, ‘mem’, ‘ps’, ‘rds_session_host’, ‘services’, ‘systemtime’, ‘uptime’, ‘winperf_if’, ‘winperf_phydisk’, ‘winperf_processor’, ‘wmi_cpuload’]

Extension
After i tested a bit with it, it seems that the plugin.py gets removed from that path. I saw an error in the service discovery. The plugin seems to crash. However, it cant be right, that the plugin gets removed right?
How can i investigate further ?

[thl-cmk]

@c4dburry

<<<rds_session_host>>> / Transition NOOPParser → HostSectionParser

is this your actual plugin output? If so I think there should be a new line after the <<<rds_session_host>>>.

Like this

<<<rds_session_host>>>
 / Transition NOOPParser → HostSectionParser

[c4dburry (M)]

no, thats some of the Output of the command:

cmk --debug -vvn myserver01

it outputs all Sections and some debugging info. that seem to work now.

The problem is still that the plugin gets deleted after every Service discovery from wato.

[andreas-doehler (Andreas)]

@c4dburry

–detect-plugins=rds_session_host

That’s the problem. If your check is only found on discovery if you use the “detect-plugins”, then your parse or discovery function has a problem.
Without your code it is complicated to say more.
Also the agent output of your script would help.