[jira] [Created] (KAFKA-20454) Verify that `bin/kafka-consumer-groups.sh --reset-offsets` fails for "streams" group

["Matthias J. Sax (Jira)" <ji...@apache.org>]

Matthias J. Sax created KAFKA-20454:
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             Summary: Verify that `bin/kafka-consumer-groups.sh --reset-offsets` fails for "streams" group
                 Key: KAFKA-20454
                 URL: https://issues.apache.org/jira/browse/KAFKA-20454
             Project: Kafka
          Issue Type: Test
          Components: streams, unit tests
            Reporter: Matthias J. Sax


With KIP-848/1071 we now have three types of groups, "classic", "consumer", and "streams". (And with KIP-932, actually also "share" groups, but they are orthogonal to this ticket).

When users reset group offset, they can use `bin/kafka-consumer-groups.sh` tool, which always uses group-type "classic".

For a "consumer" group, this is not a problem, because mixed groups are supported.

However, for a "streams" group, mixed mode (with "classic") is not supported atm. We should add a test that verifies that using `bin/kafka-consumer-groups.sh` tool (or actually internally used class), get an error when used for an existing "streams" group.



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