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https://issues.apache.org/jira/browse/KAFKA-6275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16267288#comment-16267288
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Jason Gustafson commented on KAFKA-6275:
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[~vahid] Sure, makes sense to get in KIP-175 first (I'll try to ping a couple
committers for one more vote). Removing the retention time field is probably
the way we want to go so maybe an explicit flag would be better. It might even
be better to have a separate DeleteOffsets API.
> Extend consumer offset reset tool to support deletion
> -----------------------------------------------------
>
> Key: KAFKA-6275
> URL: https://issues.apache.org/jira/browse/KAFKA-6275
> Project: Kafka
> Issue Type: Improvement
> Reporter: Jason Gustafson
> Assignee: Vahid Hashemian
> Labels: needs-kip
>
> It's useful to have a way to delete the offsets of a consumer group
> explicitly. The reset tool already supports a number of different ways to
> alter stored offsets, so perhaps we could add a {{--clear}} option. Note that
> this would require a change to the OffsetCommit protocol which does not
> currently support deletion. Perhaps if you commit an offset with a retention
> time of 0, we can treat it as a deletion.
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