Item not found in monitoring data if redis down

Troubleshooting
1

CMK version: 2.3.0p24
OS version:

Error message: Plugin REDIS shows “item not found in monitoring data” if REDIS down.

Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins)

2

Hello and wellcome to the forum.

If redis down, the plugin can get no data from redis. This will be the cause of no data. The check expect normally data, so if no data collected checmk notice you with “item not found …”.

RG, Christian

3

Thanks Christian,

How can I proceed to raise a critical event in case of redis down and checkmk does not collect data? With a rule?

Can you guide me trough?

RG Pasquale

4

You can use Process Discovery to get a service check for each Redis instance.

7

The discovery process cancel the check. I need to raise a critical event in case of “item not found in monitoring data “ when the redis server goes down. And when it comes again up the critical will go again in “ok” status.