Security

How to blacklist events from monitored logs

andrei1bc
Communicator

I have 3 different event types :

2017-02-08T08:55:32,704 [host;app1;http-bio-8115-exec-5;[[xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx] (git:stuff) text                                                       WARN  -  message1
2017-02-08T08:55:30,262 [host;app2; Pitt][generic][T#1];[[xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx] (git:stuff) text                                              WARN  -  message2
2017-02-08T08:55:29,227 [host;app3;AsyncTaskExecutor-10;[[xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx] (git:stuff) text                                                        WARN  -  message3

inputs.conf contains

[monitor:///log/*.log]
disabled = false
sourcetype = log4j
blacklist = /\S[WARN]/g

Events still get indexed. Please help with some direction.

Thank you in advance.

Tags (1)
0 Karma
1 Solution

davebrooking
Contributor

The blacklist attribute in a monitor stanza acts against files within the path and not individual events within a file. The inputs.conf documentation states

blacklist =
* If set, files from this input are NOT monitored if their path matches the specified regex.

To filter at the event level for a file monitor you can add settings to the props.conf and transforms.conf. It's documented here

Dave

View solution in original post

davebrooking
Contributor

The blacklist attribute in a monitor stanza acts against files within the path and not individual events within a file. The inputs.conf documentation states

blacklist =
* If set, files from this input are NOT monitored if their path matches the specified regex.

To filter at the event level for a file monitor you can add settings to the props.conf and transforms.conf. It's documented here

Dave

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!

[Puzzles] Solve, Learn, Repeat: Matching cron expressions

This puzzle (first published here) is based on matching timestamps to cron expressions.All the timestamps ...

Design, Compete, Win: Submit Your Best Splunk Dashboards for a .conf26 Pass

Hello Splunkers,  We’re excited to kick off a Splunk Dashboard contest! We know that dashboards are a primary ...

May 2026 Splunk Expert Sessions: Security & Observability

Level Up Your Operations: May 2026 Splunk Expert Sessions Whether you are refining your security posture or ...