junrao commented on code in PR #13463:
URL: https://github.com/apache/kafka/pull/13463#discussion_r1156467080
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core/src/main/scala/kafka/common/InterBrokerSender.scala:
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@@ -156,6 +163,16 @@ abstract class InterBrokerSendThread(
def wakeup(): Unit = networkClient.wakeup()
}
+abstract class InterBrokerRequestManager() {
+
+ var interBrokerSender: InterBrokerSender = _
Review Comment:
The issue is that `interBrokerSender` is being set and read in different
threads. If there is no memory barrier, there is no guarantee that the reader
will see the latest value being set.
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