One saved search can have only one alert condition.
I have "heartbeat" string in my log and I set up a saved search in scheduler --
sourcetype="app.log" "Heartbeat check completed"
to trigger an alert email with one alert condition "if number of events is less than 1"
However, false alarms will occur when indexers are in the middle of restarting.
Is it possible to add an extra alert condition like scanning events are more than 10?
Assuming a scanning event looks like
"scanning event", you could do this:
sourcetype="app.log" "Heartbeat check completed" OR "scanning event" | eval category = if(searchmatch("scanning event", "scanning", "heartbeat") | chart count over host by category | where scanning > 10 AND heartbeat < 5
Alert when there is at least one event, and it'll tell you hosts that had at least ten scanning events but less than five completed heartbeat checks.
Thanks a lot for the answer.
In most cases, I will get 1 row with 3 columns - host, heartbeat and scanning. However, assuming "heartbeat check completed" is not in the log due to application error, I will get only 1 row with 2 columns -- host and scanning. How can the alert be triggered in this case?