Getting Data In

Firehose through HTTP Event Collector generates duplicate log records

mmkt
Loves-to-Learn

Hello everyone,

I am streaming CloudWatch logs to SPLUNK through Firehose, and I faced the following issue:

Some json records are being indexed(?) twice and show up twice in search. The only difference between the records is the time of indexing.
I am trying to figure out how I can debug the issue. Record shows up only once in source log group in cloudwatch and s3 backups. It’s either Firehose sending a particular record twice or SPLUNK processing the same record two times. Do you have an idea how I can check my theories? I didn’t find much useful info in splunk http event collector logs. It has only technical info about the transaction: size/speed/time.

Labels (4)
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!

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

What Is the Name of the USB Key Inserted by Bob Smith? (BOTS Hint, Not the Answer)

Hello Splunkers,   So you searched, “what is the name of the usb key inserted by bob smith?”  Not gonna lie… ...

Automating Threat Operations and Threat Hunting with Recorded Future

    Automating Threat Operations and Threat Hunting with Recorded Future June 29, 2026 | Register   Is your ...