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https://issues.apache.org/jira/browse/KAFKA-5346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036795#comment-16036795
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Rajini Sivaram commented on KAFKA-5346:
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Broker closes the connection after idle time. If the producer fails to produce
altogether, it could be that the .NET client is not reconnecting as expected.
If only a single request has failed, could create the producer with a higher
number of retries. If you are expecting 15 minutes of idle time between
messages and you want to keep connections open, you could increase idle time in
the broker to a value higher than 15 minutes (you have reduced it, which will
have the opposite effect).
> Kafka Producer Failure After Idle Time
> --------------------------------------
>
> Key: KAFKA-5346
> URL: https://issues.apache.org/jira/browse/KAFKA-5346
> Project: Kafka
> Issue Type: Bug
> Environment: 0.9.0.1 , windows
> Reporter: Manikandan P
>
> We are using kafka (2.11-0.9.0.1) in windows and using .NET Kafka SDK
> (kafka-net) for connecting kafka server.
> When we produce the data to kafka server after 15 minutes of idle time of
> .NET Client, we are getting below exception in the Kafka SDK Logs.
> TcpClient Socket [http://10.X.X.100:9092//10.X.X.211:50290] Socket.Poll(S):
> Data was not available, may be connection was closed.
> TcpClient Socket [http://10.X.X.100:9092//10.X.X.211:50290] has been closed
> successfully.
> It seems that Kafka Server is accepting the socket request but not responding
> the request due to which we are not able to produce the message to Kafka even
> though Kafka Server is online.
> We also tried to increase the threads and also decrease the idle time in
> server.properties as below in kafka Server and still getting above logs.
> num.network.threads=6
> num.io.threads=16
> connections.max.idle.ms =120000
> Please help us to resolve the above issue as it is breaking functional flow
> and we are having in go live next week.
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