Service monitoring rules ignored

[Txema (Txema C. M.)]

CMK version:
2.0.0p17.cre
OS version:
Debian 10
Error message:
N/A
Output of “cmk --debug -vvn hostname”: (If it is a problem with checks or plugins)
N/A

Hello,

After recent updates in Check_MK, my regexp rules to ignore some of the errors and warnings for my Windows servers logs does not work anymore (Setup > Services > Service monitoring rules > Logfile patterns). The funny thing, however, is that the tester for these expressions (Logfile pattern analyzer) works correctly. What could be the problem?

Thanks in advance,

[tosch (Tobias Schönau)]

Hi @Txema and welcome to the checkmk community.

Can you please provide us with the rules and regular expressions you are using as well as the things you like to ignore?

[Txema (Txema C. M.)]

Hi tosch! And thanks for your welcome!

A simple example can be this. To ignore a critical messagge I have created a rule and the pattern checker detects OK. However, the alert does not change and continues to appear:

[tosch (Tobias Schönau)]

Can you please test the pattern analyzer with the whole message? I am not sure if the rule pattern is wildcarded before and after. I am a bit puzzled about your pattern because it’s not proper regular expression, the space is also a special character and normally needs to be escaped too.
Another thing you probably already have checked, still unacknowledged events can keep the state CRIT.

[Txema (Txema C. M.)]

Hi Tosch!

I think the pattern is marked with wildcards by default (at the beginning and at the end), but also with escaped spaces, the test matches but the check does not:

What can it be then? Until version 2.0.0p15 these rules always worked for me.

Thanks!