dajac commented on code in PR #13231:
URL: https://github.com/apache/kafka/pull/13231#discussion_r1110139153
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clients/src/main/resources/common/message/AddPartitionsToTxnRequest.json:
##########
@@ -23,17 +23,35 @@
// Version 2 adds the support for new error code PRODUCER_FENCED.
//
// Version 3 enables flexible versions.
- "validVersions": "0-3",
+ //
+ // Version 4 adds VerifyOnly field to check if partitions are already in
transaction and adds support to batch multiple transactions.
+ "validVersions": "0-4",
"flexibleVersions": "3+",
"fields": [
- { "name": "TransactionalId", "type": "string", "versions": "0+",
"entityType": "transactionalId",
+ { "name": "VerifyOnly", "type": "bool", "versions": "4+", "default": false,
Review Comment:
Right. At the broker level, I think that it is possible to have old and new
producers, right? If we use one connection from the broker to the transaction
coordinator, it means that one has to wait on the other. I don't know how you
plan to implement this so it is just a thought.
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