I have two types of messages, I would like to receive the numbers from these logs :
2020-03-16 15:12:15,304 services/text123456: Periodic connection check - 1659 active services!
2020-03-16 15:11:56,173 services/textabcdef: NUMBER OF ACTIVE services: 1123
Thanks for help
As a first cut, add these lines to the end of your current search:
| rex field=_raw "Periodic\sconnection\scheck\s\-\s(?<num_active_svcs_chkd>\d+)\sactive\sservices" | rex field=_raw "NUMBER\sOF\sACTIVE\sservices\:\s(?<num_active_svcs>\d+)"
This will give you 2 new fields, num_active_svcs_chkd and num_active_svcs. Theses names are completely arbitrary -- you can change them to suit your needs.
Once you're happy with how these extractions are going, work with your Splunk admin to get these added into props.conf.
Hope that helps!