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https://issues.apache.org/jira/browse/FLINK-22785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17355487#comment-17355487
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Jin Xu commented on FLINK-22785:
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should not use 2 seperate producers on 1 topic,
say, e.g., producer1 start ->producer2 start-> producer3 start-> producer2
commit ->producer3 commit ->producer1 commit--
all messages would be hold up until producer1 commit
> Kafka transaction failing when there are two producers
> ------------------------------------------------------
>
> Key: FLINK-22785
> URL: https://issues.apache.org/jira/browse/FLINK-22785
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.12.1
> Reporter: Ygor Allan de Fraga
> Priority: Major
>
> Whenever there are two producers in the same Kafka Topic, an error related to
> the transaction appears for one of the Flink Applications.
>
> {code:java}
> org.apache.kafka.common.errors.ProducerFencedException: Producer attempted
> an operation with an old epoch. Either there is a newer producer with the
> same transactionalId, or the producer's transaction has been expired by the
> broker.{code}
>
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