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https://issues.apache.org/jira/browse/KAFKA-14438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17643591#comment-17643591
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Kirk True commented on KAFKA-14438:
-----------------------------------
+1
> Stop supporting empty consumer groupId
> --------------------------------------
>
> Key: KAFKA-14438
> URL: https://issues.apache.org/jira/browse/KAFKA-14438
> Project: Kafka
> Issue Type: Task
> Components: consumer
> Reporter: Philip Nee
> Priority: Blocker
> Fix For: 4.0.0
>
>
> Currently, a warning message is logged upon using an empty consumer groupId.
> In the next major release, we should drop the support of empty ("") consumer
> groupId.
>
> cc [~hachikuji]
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