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Posted to dev@kafka.apache.org by Waseem Anwar <wa...@evolverstech.com> on 2025/08/01 12:55:23 UTC
Kafka Consumer Not Receiving Messages Until Restart
Dear Apache Kafka Development Team,
I hope you're doing well.
I'm encountering an issue with our Kafka setup where the consumer stops
receiving messages after running for a period of time, even though:
-
The Kafka producer continues to send payloads successfully
-
The consumer remains connected and shows no visible errors
-
Restarting the consumer causes it to start receiving messages again
temporarily
-
The messages are confirmed to be in the Kafka topic (e.g., via
kafka-console-consumer)
-
There are no signs of consumer crashes or disconnections in the logs
Our Kafka version is ruby-kafka (1.5.0) as we have integrated it into the
Ruby on Rails application. This behavior appears intermittent, and we’re
unsure whether it's related to offset management, consumer group behavior,
or something else.
We would greatly appreciate your help in identifying what could be causing
this issue, or any suggestions on additional debugging steps we can take.
Please let me know if further configuration or log details would be helpful.
Best regards,
Waseem Anwar
Senior Software Engineer
Re: Kafka Consumer Not Receiving Messages Until Restart
Posted by "Matthias J. Sax" <mj...@apache.org>.
Hello Waseem,
we only maintain the Java clients, which are part of Apache Kafka project.
The ruby clients is a third part client, and I don't think anybody would
know much about it.
It might be best, to reach out to the maintainers of the ruby client and
ask them for help. Or maybe try the users@kafka.apache.org mailing list
which might reach the broader Kafka users community?
-Matthias
On 8/1/25 5:55 AM, Waseem Anwar wrote:
> Dear Apache Kafka Development Team,
>
> I hope you're doing well.
>
> I'm encountering an issue with our Kafka setup where the consumer stops
> receiving messages after running for a period of time, even though:
>
> -
>
> The Kafka producer continues to send payloads successfully
> -
>
> The consumer remains connected and shows no visible errors
> -
>
> Restarting the consumer causes it to start receiving messages again
> temporarily
> -
>
> The messages are confirmed to be in the Kafka topic (e.g., via
> kafka-console-consumer)
> -
>
> There are no signs of consumer crashes or disconnections in the logs
>
> Our Kafka version is ruby-kafka (1.5.0) as we have integrated it into the
> Ruby on Rails application. This behavior appears intermittent, and we’re
> unsure whether it's related to offset management, consumer group behavior,
> or something else.
>
> We would greatly appreciate your help in identifying what could be causing
> this issue, or any suggestions on additional debugging steps we can take.
>
> Please let me know if further configuration or log details would be helpful.
>
> Best regards,
>
> Waseem Anwar
> Senior Software Engineer
>
Re: Kafka Consumer Not Receiving Messages Until Restart
Posted by Martin Andersson <ma...@kambi.com>.
Hi Waseem
This sounds like either an environment issue (i.e. something other than the kafka client/broker), or a client issue. In any case, you probably want to ask the developers of the ruby client instead.
Regards,
________________________________
From: Waseem Anwar <wa...@evolverstech.com>
Sent: Friday, August 1, 2025 14:55
To: dev-subscribe@kafka.apache.org <de...@kafka.apache.org>; dev@kafka.apache.org <de...@kafka.apache.org>
Subject: Kafka Consumer Not Receiving Messages Until Restart
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Dear Apache Kafka Development Team,
I hope you're doing well.
I'm encountering an issue with our Kafka setup where the consumer stops
receiving messages after running for a period of time, even though:
-
The Kafka producer continues to send payloads successfully
-
The consumer remains connected and shows no visible errors
-
Restarting the consumer causes it to start receiving messages again
temporarily
-
The messages are confirmed to be in the Kafka topic (e.g., via
kafka-console-consumer)
-
There are no signs of consumer crashes or disconnections in the logs
Our Kafka version is ruby-kafka (1.5.0) as we have integrated it into the
Ruby on Rails application. This behavior appears intermittent, and we’re
unsure whether it's related to offset management, consumer group behavior,
or something else.
We would greatly appreciate your help in identifying what could be causing
this issue, or any suggestions on additional debugging steps we can take.
Please let me know if further configuration or log details would be helpful.
Best regards,
Waseem Anwar
Senior Software Engineer
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