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https://issues.apache.org/jira/browse/KAFKA-602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676262#comment-13676262
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Jason Rosenberg commented on KAFKA-602:
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This is still an issue in 0.8 branch, as well.
> A ConsumerConnector that never receives messages does not shutdown cleanly
> --------------------------------------------------------------------------
>
> Key: KAFKA-602
> URL: https://issues.apache.org/jira/browse/KAFKA-602
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 0.8.1
> Reporter: Jason Rosenberg
>
> Working with the latest trunk version (last commit was on 10/9/2012).
> If I create a consumer connector, and create some KafkaStreams using a
> TopicFilter, but then never send any messages, and then call shutdown on the
> connector, the KafkaStreams never get notified of the shutdown.
> Looking at ZookeeperConsumerConnector, in the method
> 'sendShutdownToAllQueues', It appears the current implementation is dependent
> on receiving at least 1 message with a topic, before initializing the list of
> topicThreadIdAndQueues, to send the shutdownCommand to.
> Jason
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