Guozhang Wang created KAFKA-5181:
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Summary: Add a new request into admin client to manually setting
the committed offsets
Key: KAFKA-5181
URL: https://issues.apache.org/jira/browse/KAFKA-5181
Project: Kafka
Issue Type: Bug
Reporter: Guozhang Wang
In the old consumer, where offsets are stored in ZK, a common operation is to
manually set the committed offsets for consumers by writing directly to ZK.
In the new consumer we remove the ZK dependency because it is risky to let any
client to talk to directly ZK, which is a multi-tenant service. However this
common operation "shortcut" is lost because of that change.
We should add this functionality back to Kafka, and now with the admin client
we could add it there. The client only needs to find the corresponding group
coordinator and send the offset commit request to it. The handling logic on the
broker side should not change.
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