cmccabe commented on code in PR #14208:
URL: https://github.com/apache/kafka/pull/14208#discussion_r1295069992
##########
metadata/src/main/java/org/apache/kafka/controller/QuorumController.java:
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@@ -623,7 +624,14 @@ enum ControllerOperationFlag {
* even though the cluster really does have metadata. Very few
operations should
* use this flag.
*/
- RUNS_IN_PREMIGRATION
+ RUNS_IN_PREMIGRATION,
+
+ /**
+ * This flag signifies that an event will be completed even if it is
part of an unfinished transaction.
+ * This is needed for metadata transactions so that external callers
can add records to a transaction
Review Comment:
Maybe mention ZK migration records as an example ...
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