aliehsaeedii opened a new pull request, #22397:
URL: https://github.com/apache/kafka/pull/22397
First sub-task of
[KIP-1331](https://cwiki.apache.org/confluence/display/KAFKA/KIP-1331%3A+Streams+Group+Topology+Description+Plugin)
(Streams Group Topology Description Plugin). Adds the wire-format scaffolding
only — no broker handler or client logic yet (those land in later tickets).
- New RPC `StreamsGroupTopologyDescriptionUpdate` (apiKey 93) —
request/response schemas + Java wrappers, wired through `ApiKeys`,
`AbstractRequest`, `AbstractResponse`,
`RequestConvertToJson`.
- New error codes: `GROUP_DELETION_FAILED` (134),
`STREAMS_TOPOLOGY_DESCRIPTION_UPDATE_FAILED` (135), with matching exception
classes.
- `StreamsGroupHeartbeatResponse`: tagged `TopologyDescriptionRequired`.
- `StreamsGroupDescribeRequest`: tagged `IncludeTopologyDescription`.
- `StreamsGroupDescribeResponse`: tagged `TopologyDescription` +
`TopologyDescriptionStatus`.
- `DeleteGroups{Request,Response}` bumped to v3 with per-group
`ErrorMessage`.
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