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https://issues.apache.org/jira/browse/KAFKA-2901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson resolved KAFKA-2901.
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Resolution: Duplicate
Assignee: Jason Gustafson (was: Neha Narkhede)
We changed the behavior of ListGroups and DescribeGroups in KAFKA-2720 to
include all groups, including those using only offset storage. I think the rest
of the behavior is covered by KAFKA-3144, which already has a patch available,
so I'm going to resolve this issue as a duplicate.
> Extend ListGroups and DescribeGroup APIs to cover offsets
> ---------------------------------------------------------
>
> Key: KAFKA-2901
> URL: https://issues.apache.org/jira/browse/KAFKA-2901
> Project: Kafka
> Issue Type: Improvement
> Components: consumer
> Affects Versions: 0.9.0.0
> Reporter: Andy Coates
> Assignee: Jason Gustafson
> Fix For: 0.10.1.0
>
>
> The {{ListGroupsRequest}} and {{DescribeGroupsRequest}} added to 0.9.0.0
> allow admin tools to get details of consumer groups now that this information
> is not stored in ZK.
> The brokers also now store offset information for consumer groups. At
> present, there is no API for admin tools to discover the groups that brokers
> are storing offsets for.
> For example, if a consumer is using the new consumer api, is storing offsets
> in Kafka under the groupId 'Bob', but is using manual partition assignment,
> then the {{groupCache}} in the {{GroupMetadataManager}} will not contain any
> information about the group 'Bob'. However, the {{offsetCache}} in the
> {{GroupMetadataManager}} will contain information about 'Bob'.
> Currently the only way for admin tools to know the full set of groups being
> managed by Kafka, i.e. those storing offsets in Kafka, those using Kafka for
> balancing of consumer groups, and those using Kafka for both, is to consume
> the offset topic.
> We need to extend the List/Describe groups API to allow admin tools to
> discover 'Bob' and allow the partition offsets to be retrieved.
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