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https://issues.apache.org/jira/browse/KAFKA-1282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201475#comment-14201475
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Jun Rao commented on KAFKA-1282:
--------------------------------
Nicu,
I was doing some manual testing of this feature. What I observed is that
sometimes, the idle connections are not closed. The following was what I did.
1. Configure a small connections.max.idle.ms = 10000.
2. start ZK and Kafka broker
3. start a console consumer
bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic topic1
--from-beginning
4. start a console producer and type in sth every 15 secs or so.
bin/kafka-console-producer.sh --broker-list localhost:9092 --topic topic1
--request-required-acks 1
What I observed was that initially, the producer connections kept getting
killed by the broker correctly after being idle for 10 secs. The next producer
send would hit an IOException and trigger a resend. However, after typing in 10
or so messages, at some point, no idle connections were killed by the broker
any more and the producer send always succeeded.
> Disconnect idle socket connection in Selector
> ---------------------------------------------
>
> Key: KAFKA-1282
> URL: https://issues.apache.org/jira/browse/KAFKA-1282
> Project: Kafka
> Issue Type: Bug
> Components: producer
> Affects Versions: 0.8.2
> Reporter: Jun Rao
> Assignee: nicu marasoiu
> Labels: newbie++
> Fix For: 0.9.0
>
> Attachments: 1282_brush.patch, 1282_brushed_up.patch,
> KAFKA-1282_Disconnect_idle_socket_connection_in_Selector.patch
>
>
> To reduce # socket connections, it would be useful for the new producer to
> close socket connections that are idle. We can introduce a new producer
> config for the idle time.
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