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https://issues.apache.org/jira/browse/KAFKA-6812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677312#comment-16677312
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Kamal Kang commented on KAFKA-6812:
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[~enether], sure, I can write KIP for this issue.
> Async ConsoleProducer exits with 0 status even after data loss
> --------------------------------------------------------------
>
> Key: KAFKA-6812
> URL: https://issues.apache.org/jira/browse/KAFKA-6812
> Project: Kafka
> Issue Type: Bug
> Components: tools
> Affects Versions: 1.1.0
> Reporter: Andras Beni
> Assignee: Stanislav Kozlovski
> Priority: Minor
>
> When {{ConsoleProducer}} is run without {{--sync}} flag and one of the
> batches times out, {{ErrorLoggingCallback}} logs the error:
> {code:java}
> 18/04/21 04:23:01 WARN clients.NetworkClient: [Producer
> clientId=console-producer] Connection to node 10 could not be established.
> Broker may not be available.
> 18/04/21 04:23:02 ERROR internals.ErrorLoggingCallback: Error when sending
> message to topic my-topic with key: null, value: 8 bytes with error:
> org.apache.kafka.common.errors.TimeoutException: Expiring 1 record(s) for
> my-topic-0: 1530 ms has passed since batch creation plus linger time{code}
> However, the tool exits with status code 0.
> In my opinion the tool should indicate in the exit status that there was
> data lost. Maybe it's reasonable to exit after the first error.
>
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