Redfish Timeouts on Supermicro BMC with Redfish v1.8

Troubleshooting
1

CMK version: 2.3.0p30
OS version: Ubuntu 22.04.5 LTS
Redfish mkp 2.3.75

Error message: Item not found in monitoring data → Timeouts

Hi,

I’m using the Redfish API to monitor my Supermicro servers.
I have 9 servers with redfish 1.11 in the BMC fiirmware.
They work just fine.

I have added another 2 servers, but these 2 are 2 generations older.
They have redfish 1.8 in the BMC firmware.

I was able to add them and get all sensor readings in CheckMK, but i get lots of timeouts.
Random sensors get the error (Item not found in monitoring data), they do recover in less than 1 min.

The number of retries and Timeout setting for the plugin is already set to 20 for both.

I tried enabling the Debug mode, but it looks like the log file does not exist.

[special_redfish] PermissionError: [Errno 13] Permission denied: /RedfishApi.logCRIT, [piggyback] Success (but no data found for this host), Missing monitoring data for all pluginsWARN, execution time 0.4 sec

There is no RedfishApi.log file in the folder : ~/var/check_mk/core

It would be super if we can fix this because i plan an adding another 2 servers.

@andreas-doehler Maybe you can help me?

2

Yes the older Supermicro BMCs are a little bit problematic.
What you can do is the following.

  • inside the Redfish agent config disable nearly all sections
    image
    image1082×862 79.3 KB

    This is ok as long as your “System state” provides a “Rollup state” if you see only “Component State” then i don’t know what is all included.

For the missing items i have no generic solution.

If “Rollup State” is available inside “System state” it would be also possible to disable all section and get a valid check result. But i checked on some of my Supermicro servers and all don’t show a rollup state :frowning:

The Supermicro where i see similar problems have Redfish 1.8 and 1.9 version.

3

Thanks for the feedback Andreas.

And do you have an idea why the debug mode does not function and complaints about the permissions?

4

I can have a look for the debug option. Until now i only used the debug manually on the command line and then the log is placed in the folder where you are at the moment. Must have a look if it is possible to specify an output path for the log.

5

How do you do the debug manually?
I had tried this command: cmk --debug -vv ServerName.
It gives me a clear output, but no log is created.
Probably i need another command.
Thanks

6

This topic was automatically closed 365 days after the last reply. New replies are no longer allowed. Contact an admin if you think this should be re-opened.