artemlivshits commented on code in PR #14629:
URL: https://github.com/apache/kafka/pull/14629#discussion_r1376817191
##########
core/src/main/scala/kafka/server/ReplicaManager.scala:
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@@ -864,6 +778,111 @@ class ReplicaManager(val config: KafkaConfig,
}
}
+ /*
+ * Note: This method can be used as a callback in a different request
thread. Ensure that correct RequestLocal
+ * is passed when executing this method. Accessing non-thread-safe data
structures should be avoided if possible.
+ */
+ private def appendEntries(allEntries: Map[TopicPartition, MemoryRecords],
+ internalTopicsAllowed: Boolean,
+ origin: AppendOrigin,
+ requiredAcks: Short,
+ verificationGuards: Map[TopicPartition,
VerificationGuard],
Review Comment:
It seems that storing the group coordinator state is not transactional, so
verification code path shouldn't be used. But I agree with question of the
locking model in the group coordinator and whether it'd work correctly with
more asynchronous approach.
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