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https://issues.apache.org/jira/browse/KAFKA-20624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alieh Saeedi updated KAFKA-20624:
---------------------------------
    Description: streamsGroupDescribe gains includeTopologyDescription flag. 
attachTopologyDescriptions: call plugin.getTopology only when 
StoredTopologyEpoch == currentTopologyEpoch, otherwise report NOT_STORED. 
Status constants: NOT_REQUESTED (0), NOT_STORED (1), ERROR (2), AVAILABLE (3). 
GroupCoordinator interface update. Broker wiring: KafkaApis.scala (new handler 
+ describe flag plumbing), BrokerServer.scala (plugin instantiation + 
configuration), RequestConvertToJson. GroupCoordinatorServiceTest 
(describe-path tests), KafkaApisTest, RequestQuotaTest, 
AuthorizerIntegrationTest, checkstyle/suppressions.xml.

> Wire topology description plugin into GroupCoordinatorService — read path 
> (describe) and broker wiring
> ------------------------------------------------------------------------------------------------------
>
>                 Key: KAFKA-20624
>                 URL: https://issues.apache.org/jira/browse/KAFKA-20624
>             Project: Kafka
>          Issue Type: Sub-task
>            Reporter: Alieh Saeedi
>            Assignee: Lucas Brutschy
>            Priority: Major
>             Fix For: 4.4.0
>
>
> streamsGroupDescribe gains includeTopologyDescription flag. 
> attachTopologyDescriptions: call plugin.getTopology only when 
> StoredTopologyEpoch == currentTopologyEpoch, otherwise report NOT_STORED. 
> Status constants: NOT_REQUESTED (0), NOT_STORED (1), ERROR (2), AVAILABLE 
> (3). GroupCoordinator interface update. Broker wiring: KafkaApis.scala (new 
> handler + describe flag plumbing), BrokerServer.scala (plugin instantiation + 
> configuration), RequestConvertToJson. GroupCoordinatorServiceTest 
> (describe-path tests), KafkaApisTest, RequestQuotaTest, 
> AuthorizerIntegrationTest, checkstyle/suppressions.xml.



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