What is ReadShareGroupStateSummary?
Reads only the epoch and start offset without fetching full delivery state, for lightweight coordination checks. The coordinator uses this to quickly verify state consistency without the overhead of a full ReadShareGroupState, particularly during startup and failover.
| Version | Kafka | Changes |
|---|---|---|
| ReadShareGroupStateSummaryRequest | ||
| v0 | 3.9 | + GroupId string+ Topics []ReadStateSummaryData+ TopicId uuid+ Partitions []PartitionData+ Partition int32+ LeaderEpoch int32~ Flexible encoding enabled FLEXIBLE is the initial version (KIP-932). |
| v1 | 4.2 | introduces DeliveryCompleteCount in the response (KIP-1226). |
| ReadShareGroupStateSummaryResponse | ||
| v0 | 3.9 | + Results []ReadStateSummaryResult+ TopicId uuid+ Partitions []PartitionResult+ Partition int32+ ErrorCode int16+ ErrorMessage string+ StateEpoch int32+ LeaderEpoch int32+ StartOffset int64~ Flexible encoding enabled FLEXIBLE is the initial version (KIP-932). |
| v1 | 4.2 | + DeliveryCompleteCount int32introduces DeliveryCompleteCount (KIP-1226). |