[jira] [Comment Edited] (KAFKA-5604) All producer methods should raise `ProducerFencedException` after the first time.

["Xiang Zhang (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-5604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17061275#comment-17061275 ] 

Xiang Zhang edited comment on KAFKA-5604 at 3/18/20, 12:19 AM:
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Also, under that TODO marker, it says "this should actually never happen", I am confused by that because ProducerFencedException is always possible when two transactional instances exist at the same moment.


was (Author: iamabug):
Also, under that TODO marker, it says "this should actually never happen", I am confused by that because ProducerFencedException is always possible where two transactional instances exist at the same moment.

> All producer methods should raise `ProducerFencedException` after the first time.
> ---------------------------------------------------------------------------------
>
>                 Key: KAFKA-5604
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5604
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Apurva Mehta
>            Assignee: Apurva Mehta
>            Priority: Major
>
> Currently, when a `ProducerFencedException` is raised from a transactional producer, the expectation is that the application should call `close` immediately. However, if the application calls other producer methods, they would get a `KafkaException`. This is a bit confusing, and results in tickets like : https://issues.apache.org/jira/browse/KAFKA-5603. 
> We should update the producer so that calls to any method other than `close` should raise a `ProducerFencedException` after the first time it is raised.



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