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https://issues.apache.org/jira/browse/KAFKA-20883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18101211#comment-18101211
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Yunseop Eom commented on KAFKA-20883:
-------------------------------------
Opened PR #23062: https://github.com/apache/kafka/pull/23062
The CLI now prints the optional instance ID for Streams group members in both
normal and verbose member output, using - for dynamic members. Added
deterministic coverage for static member IDs in both output modes.
Verification: targeted DescribeStreamsGroupTest passed; Spotless, Checkstyle,
SpotBugs, and git diff --check passed.
> Consider exposing instance ID for the streams group.
> ----------------------------------------------------
>
> Key: KAFKA-20883
> URL: https://issues.apache.org/jira/browse/KAFKA-20883
> Project: Kafka
> Issue Type: Improvement
> Reporter: sanghyeok An
> Assignee: sanghyeok An
> Priority: Minor
> Labels: needs-kip, streams
>
> {code:java}
> GROUP MEMBER PROCESS
> CLIENT-ID
> ASSIGNMENTS
> ASH-HELLO1 FoxjlMG2RuCy7enUbPOMXA ee1fd7d9-00d4-44d6-96fe-d180d65bc6cc
> ASH-HELLO1-ee1fd7d9-00d4-44d6-96fe-d180d65bc6cc-StreamThread-1-consumer
> ACTIVE: 0:[0,1,2]; 1:[0,1,2,3,4,5,6,7,8,9];
> {code}
> Currently, the streams group does not show instance id.
> And, *kafka-consumer-groups.sh* fails to show instance id for the following
> reason.
> {code:java}
> java.util.concurrent.ExecutionException:
> org.apache.kafka.common.errors.GroupIdNotFoundException: Group ASH-HELLO1 is
> not a consumer group.
> {code}
> However, kafka-consumer-groups.sh shows the instance id of a classic streams
> application.
> So, It would be better to provide a way to show the instance id via CLI.
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