Hi Jakob,

The consumer is not consuming the messages because the messages might have
already been consumed using the consumer group, jupiter-workers. So, the
options below will help you read the messages.

1. Change the group.id from jupiter-workers to something else like
jupiter-workers-latest
2. Reset the consumer offset of the consumer group "jupiter-workers" of
Topic "jupiter-events" to the beginning offset, and then start the consumer
application

Please reach out if any more details are needed.

Thanks
C Suresh
+91 9042189457





On Mon, Jul 21, 2025 at 2:24 PM Jakob Molander <j...@geus.dk.invalid> wrote:

> Hello everyone,
>
> I'm currently working with a single Kafka 3.9.1 instance running in
> Docker, and I've set up a single topic named "jupiter-events".
>
> My Kafka producer is successfully sending messages to the topic, and I've
> confirmed that these messages are being received by the Kafka instance.
>
> However, I'm facing an issue where my Kafka consumer does not receive any
> messages when polling the topic. According to the logs, the consumer
> appears to be functioning correctly, but it always receives an empty list
> during polling.
>
> I've attached the configuration files and logs for both the producer and
> the consumer for reference.
>
> Could anyone kindly take a look and let me know if there’s something I
> might be missing?
>
> Thank you in advance for your time and assistance!
>
> Kind regards,
> Jakob
>

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