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Posted to dev@kafka.apache.org by "Ewen Cheslack-Postava (JIRA)" <ji...@apache.org> on 2016/06/20 05:43:05 UTC
[jira] [Commented] (KAFKA-3827) log.message.format.version should
default to inter.broker.protocol.version
[ https://issues.apache.org/jira/browse/KAFKA-3827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15339030#comment-15339030 ]
Ewen Cheslack-Postava commented on KAFKA-3827:
----------------------------------------------
[~junrao] Is that the behavior we really want? I don't think that turning "down" the inter broker protocol or message format is a good idea, but whereas you could potentially safely downgrade the protocol version (as long as all brokers were also turned down to that version), if you already had messages published in 0.10 format, it isn't safe to turn down the message format, is it?
> 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
> 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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