poorbarcode commented on code in PR #23795:
URL: https://github.com/apache/pulsar/pull/23795#discussion_r1900391638
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentStickyKeyDispatcherMultipleConsumersClassic.java:
##########
@@ -146,11 +146,43 @@ public synchronized CompletableFuture<Void>
addConsumer(Consumer consumer) {
&& consumerList.size() > 1
&&
cursor.getNumberOfEntriesSinceFirstNotAckedMessage() > 1) {
recentlyJoinedConsumers.put(consumer,
readPositionWhenJoining);
+ sortRecentlyJoinedConsumersIfNeeded();
}
}
});
}
+ private void sortRecentlyJoinedConsumersIfNeeded() {
+ if (recentlyJoinedConsumers.size() == 1) {
+ return;
+ }
+ boolean sortNeeded = false;
+ Position posPre = null;
+ Position posAfter = null;
+ for (Map.Entry<Consumer, Position> entry :
recentlyJoinedConsumers.entrySet()) {
+ if (posPre == null) {
+ posPre = entry.getValue();
+ } else {
+ posAfter = entry.getValue();
+ }
+ if (posPre != null && posAfter != null) {
+ if (posPre.compareTo(posAfter) > 0) {
+ sortNeeded = true;
+ break;
+ }
+ }
+ }
Review Comment:
Fixed the issue and added a test to cover the case
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