hachikuji commented on a change in pull request #9482:
URL: https://github.com/apache/kafka/pull/9482#discussion_r510437477
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File path: raft/src/main/java/org/apache/kafka/raft/QuorumState.java
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@@ -369,6 +379,17 @@ public void transitionToLeader(long epochStartOffset)
throws IOException {
if (!candidateState.isVoteGranted())
throw new IllegalStateException("Cannot become leader without
majority votes granted");
+ // Note that the leader does not retain the high watermark that was
known
+ // in the previous state. The purpose of this is to protect the
monotonicity
Review comment:
It was intended to refer to the behavior of not retaining the high
watermark from the previous sentence. I will attempt to clarify.
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