Alerting

Alert when service is down on multiple hosts

fsrodriguez
New Member

I have the Splunk Add-On for Linux and Unix installed which enables the "PS" command. How can I monitor the tomcat service or some other service on multiple hosts for 5 minutes?

This is what I have so far:

host="server-*" source="ps" tomcat

I would like to trigger an alarm whenever the tomcat service has been down for more than 5 minutes on any of the hosts that the query finds.

0 Karma

Yunagi
Communicator

Try the following search:

host="server-*" source="ps" process_name="tomcat" | dedup host | eval lastseen=now()-_time

You might need to change process_name="tomcat" to suit your needs. You also might want to add "index=..." This will make your searches faster.

Save this search as an alert with the custom trigger condition: lastseen>300. The time range should be several hours, e.g. last 24 hours.

0 Karma

fsrodriguez
New Member

when you say "You also might want to add "index=...""....

This means setting up a monitor this way:

splunk add monitor /opt/tomcat/logs/catalina.out  -index tomcat

Right?

and then do:

 host="server-*" source="tomcat" process_name="tomcat" | dedup host | eval lastseen=now()-_time
0 Karma
Get Updates on the Splunk Community!

Extending Observability Content to Splunk Cloud

Watch Now!   In this Extending Observability Content to Splunk Cloud Tech Talk, you'll see how to leverage ...

More Control Over Your Monitoring Costs with Archived Metrics!

What if there was a way you could keep all the metrics data you need while saving on storage costs?This is now ...

New in Observability Cloud - Explicit Bucket Histograms

Splunk introduces native support for histograms as a metric data type within Observability Cloud with Explicit ...