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https://issues.apache.org/jira/browse/KAFKA-3827?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jun Rao resolved KAFKA-3827.
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Resolution: Won't Fix
The currently implementation is easier to understand than what I proposed.
Closing the jira.
> log.message.format.version should default to inter.broker.protocol.version
> --------------------------------------------------------------------------
>
> Key: KAFKA-3827
> URL: https://issues.apache.org/jira/browse/KAFKA-3827
> Project: Kafka
> Issue Type: Improvement
> Affects Versions: 0.10.0.0
> Reporter: Jun Rao
> Assignee: Manasvi Gupta
> Priority: Major
> Labels: newbie
>
> Currently, if one sets inter.broker.protocol.version to 0.9.0 and restarts
> the broker, one will get the following exception since
> log.message.format.version defaults to 0.10.0. It will be more intuitive if
> log.message.format.version defaults to the value of
> inter.broker.protocol.version.
> java.lang.IllegalArgumentException: requirement failed:
> log.message.format.version 0.10.0-IV1 cannot be used when
> inter.broker.protocol.version is set to 0.9.0.1
> at scala.Predef$.require(Predef.scala:233)
> at kafka.server.KafkaConfig.validateValues(KafkaConfig.scala:1023)
> at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:994)
> at kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:743)
> at kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:740)
> at
> kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:28)
> at kafka.Kafka$.main(Kafka.scala:58)
> at kafka.Kafka.main(Kafka.scala)
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