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https://issues.apache.org/jira/browse/FLINK-31363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17699215#comment-17699215
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lightzhao commented on FLINK-31363:
-----------------------------------
[~tzulitai] You are right, it is true that data cannot be consumed in
READ_COMMITTED mode, and it is indeed impossible to directly change it to
'false'.
> KafkaSink failed to commit transactions under EXACTLY_ONCE semantics
> --------------------------------------------------------------------
>
> Key: FLINK-31363
> URL: https://issues.apache.org/jira/browse/FLINK-31363
> Project: Flink
> Issue Type: Bug
> Components: Connectors / Kafka
> Affects Versions: 1.17.0, 1.16.1, 1.18.0
> Reporter: lightzhao
> Priority: Major
> Labels: pull-request-available
> Attachments: image-2023-03-08-10-54-51-410.png
>
>
> When KafkaSink starts Exactly once and no data is written to the topic during
> a checkpoint, the transaction commit exception is triggered, with the
> following exception.
> [Transiting to fatal error state due to
> org.apache.kafka.common.errors.InvalidTxnStateException: The producer
> attempted a transactional operation in an invalid state.]
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