Re: Kafka frequent disconnection issue

Hi Ankit,

We can't see the log snippet.
But it looks normal to disconnect when connections.max.idle.ms expires.
When increasing the connections.max.idle.ms value, there might be some
activities in the connection during this time (ex: at 5 min 10 sec), so the
idle timer is reset.

Thanks.
Luke

On Fri, Dec 8, 2023 at 11:06 PM Ankit Nigam
<ankit.nigam@ericsson.com.invalid> wrote:

> Hi Team,
>
>
>
> We are using Apache Kafka 3.3.1 in our application. We have created Kafka
> Admin Client , Kafka Producer and Kafka consumer in the application using
> the default properties.
>
>
>
> Once our application starts we are observing below disconnects logs every
> 5 minutes for Admin client and once for Kafka consumer and producer in our
> application. Also at around the same time disconnection logs are being
> observed in Kafka debug server logs..
>
> Below is log snippet for the same.
>
>
>
> Application logs snippet:-
>
>
>
>
>
> Debug Kafka server.log snippet
>
>
>
>
>
>
>
>
>
> However, if we create Kafka Admin client , producer and consumer by
> overriding default "connections.max.idle.ms" property to a value greater
> default value ( 5 mins ) like 5 mins 2 second or say 10 mins, we observe
> disconnection logs only one disconnection log.
>
> Below are logs for the same.
>
>
>
>
>
> Request you all to kindly let us know why this disconnection is happening
> every 5 minutes if we don't override the default "connections.max.idle.ms"
> property and why it disconnects just only once if the time is increased
> beyond 5 mins for the "connections.max.idle.ms" property.?
>
>
>
> Regards,
>
> Ankit Nigam
>
>
>