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https://issues.apache.org/jira/browse/KAFKA-371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Creasy updated KAFKA-371:
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Attachment: KAFKA-371-0.8.patch
> Creating topic of empty string puts broker in a bad state
> ---------------------------------------------------------
>
> Key: KAFKA-371
> URL: https://issues.apache.org/jira/browse/KAFKA-371
> Project: Kafka
> Issue Type: Bug
> Reporter: Martin Kleppmann
> Fix For: 0.7
>
> Attachments: KAFKA-371-0.8.patch
>
>
> Using the Java client library, I accidentally published a message where the
> topic name was the empty string. This put the broker in a bad state where
> publishing became impossible, and the following exception was logged 10-20
> times per second:
> 2012-06-21 00:41:30,324 [kafka-processor-3] ERROR kafka.network.Processor -
> Closing socket for /127.0.0.1 because of er
> ror
> kafka.common.InvalidTopicException: topic name can't be empty
> at kafka.log.LogManager.getOrCreateLog(LogManager.scala:165)
> at
> kafka.server.KafkaRequestHandlers.kafka$server$KafkaRequestHandlers$$handleProducerRequest(KafkaRequestHandle
> rs.scala:75)
> at
> kafka.server.KafkaRequestHandlers.handleProducerRequest(KafkaRequestHandlers.scala:58)
> at
> kafka.server.KafkaRequestHandlers$$anonfun$handlerFor$1.apply(KafkaRequestHandlers.scala:43)
> at
> kafka.server.KafkaRequestHandlers$$anonfun$handlerFor$1.apply(KafkaRequestHandlers.scala:43)
> at kafka.network.Processor.handle(SocketServer.scala:289)
> at kafka.network.Processor.read(SocketServer.scala:312)
> at kafka.network.Processor.run(SocketServer.scala:207)
> at java.lang.Thread.run(Thread.java:679)
> Restarting Kafka did not help. I had to manually clear out the bad state in
> Zookeeper to resolve the problem.
> The broker should not accept a message that would put it in such a bad state.
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