Getting Data In

Transforms working intermittently on index cluster for AWS Kinesis to HEC

johnansett
Communicator

Hello Splunkers,

We are receiving config notifications, CloudTrail and others from AWS through Kinesis - the general pattern is:
Config -> Event Rules -> Event Hub -> Kinesis -> HEC (indexer cluster)
This works, what seems flawlessly.

We separate the data into indexes based on the account number due to security policies so I've set up props/transforms to do this.

This seems to work most of the time and 77% of the traffic ends up in the correct index but there is 33% (on avg) that ends up in the default index of the HEC (aws_config)

Is it possible that the transforms aren't triggering all the time?
The events are identical format; sourcetype and source are identical.

Here is the transforms:

[aws-account1]
REGEX = 010016492034
DEST_KEY = _MetaData:Index
FORMAT = aws-account1

Props:
[aws:config:notification]
TRANSFORMS-aws_config_notification=aws-account1

Am I missing something here? Is there anything I should look for in internal?

I remember years ago in training an example where props hierarchy would mess with data when there was multiple props/transforms, and the intermittent nature *might* make sense but I have no idea where to troubleshoot this.
The HEC is on a cluster of indexers so the config is all via the CM, thus no differences.

Any suggestions would be greatly appreciated!

Cheers!

1 Solution

johnansett
Communicator

Regex issue.  Multiple account numbers in events.

View solution in original post

0 Karma

johnansett
Communicator

Regex issue.  Multiple account numbers in events.

0 Karma
Get Updates on the Splunk Community!

App Platform's 2025 Year in Review: A Year of Innovation, Growth, and Community

As we step into 2026, it’s the perfect moment to reflect on what an extraordinary year 2025 was for the Splunk ...

Operationalizing Entity Risk Score with Enterprise Security 8.3+

Overview Enterprise Security 8.3 introduces a powerful new feature called “Entity Risk Scoring” (ERS) for ...

Unlock Database Monitoring with Splunk Observability Cloud

  In today’s fast-paced digital landscape, even minor database slowdowns can disrupt user experiences and ...