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https://issues.apache.org/jira/browse/KAFKA-13149?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson resolved KAFKA-13149.
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Fix Version/s: 3.0.1
Resolution: Fixed
> Null Pointer Exception for record==null when handling a produce request
> -----------------------------------------------------------------------
>
> Key: KAFKA-13149
> URL: https://issues.apache.org/jira/browse/KAFKA-13149
> Project: Kafka
> Issue Type: Bug
> Components: log
> Reporter: Cong Ding
> Priority: Major
> Fix For: 3.0.1
>
>
> In production, we have seen an exception
> {code:java}
> java.lang.NullPointerException: Cannot invoke
> "org.apache.kafka.common.record.Record.hasMagic(byte)" because "record" is
> null{code}
> which is triggered by
>
> [https://github.com/apache/kafka/blob/bfc57aa4ddcd719fc4a646c2ac09d4979c076455/core/src/main/scala/kafka/log/LogValidator.scala#L191]
> when handling a produce request.
> The reason is that
> [https://github.com/apache/kafka/blob/bfc57aa4ddcd719fc4a646c2ac09d4979c076455/clients/src/main/java/org/apache/kafka/common/record/DefaultRecord.java#L294-L296]
> returns record==null, which is possibly caused by a bad client. However, we
> have no idea about the client in our multi-tenant environment.
> We should let the broker throw an invalid record exception and notify clients.
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