Alerting

Missing Activity Alert False Positives

mf439
New Member

Hi, 

 

I have the following alert set up: 

query (roughly): 

 

 

index="myindex" "the log message that i am interested in"
| head 1

 

 

Alert type: Scheduled, Run on Cron Schedule */5 * * * * (every 5 minutes) for the last 10 minutes.

Trigger alert when Number of Results is less than 1. I also added throttling and configured an email to be sent when the alert triggers. 

 

It works fine most of the time, but in irregular intervals, I receive alerts. Some of them are valid, because there just were no events. For others, the saved search doesn't show events, but starting the same search again, will show that there actually were events logged, so I'd consider those alerts false positives.

My first idea was that delays in the forwarding and indexing processes lead to this result, but when by checking the _indextime field, this explanation can be ruled out as well. 

Does anyone have an idea why these false positives  appear and how I can get rid of them? 

 

Thanks in advance! 

Labels (2)
0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Quantify Your Splunk Investment Impact: Introducing Savings Metrics to Value Insights

Building on the foundation established in our initial Value Insights releases, we are introducing the Savings ...

Event Series: Telemetry Pipeline Management

Balancing Scale and Spend: Gaining Control Over High-Volume Metrics in Splunk Observability Cloud As ...

Kick the Tires Before You Commit: A Hands-On Tour of the Splunk Observability Cloud ...

Evaluating an enterprise observability platform usually goes like this: fill out a form, get a free trial with ...