merlimat commented on a change in pull request #10285:
URL: https://github.com/apache/pulsar/pull/10285#discussion_r620688788
##########
File path:
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentStickyKeyDispatcherMultipleConsumers.java
##########
@@ -219,11 +224,16 @@ protected void sendMessagesToConsumers(ReadType readType,
List<Entry> entries) {
sendMessageInfo.getTotalMessages(),
sendMessageInfo.getTotalBytes(),
sendMessageInfo.getTotalChunkedMessages(),
getRedeliveryTracker()).addListener(future -> {
- if (future.isDone() && keyNumbers.decrementAndGet() == 0) {
- readMoreEntries();
- }
- });
-
+ if (future.isSuccess()) {
+ Entry entry =
entriesWithSameKey.get(entriesWithSameKey.size() - 1);
+ Integer hashCode =
+
selector.generateKeyHash(peekStickyKey(entry.getDataBuffer()));
+ currentSendPositionPerKeyMap.put(hashCode,
entry.getPosition());
Review comment:
Also, this would break if there is a hash collision.
##########
File path:
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentStickyKeyDispatcherMultipleConsumers.java
##########
@@ -219,11 +224,16 @@ protected void sendMessagesToConsumers(ReadType readType,
List<Entry> entries) {
sendMessageInfo.getTotalMessages(),
sendMessageInfo.getTotalBytes(),
sendMessageInfo.getTotalChunkedMessages(),
getRedeliveryTracker()).addListener(future -> {
- if (future.isDone() && keyNumbers.decrementAndGet() == 0) {
- readMoreEntries();
- }
- });
-
+ if (future.isSuccess()) {
+ Entry entry =
entriesWithSameKey.get(entriesWithSameKey.size() - 1);
+ Integer hashCode =
+
selector.generateKeyHash(peekStickyKey(entry.getDataBuffer()));
+ currentSendPositionPerKeyMap.put(hashCode,
entry.getPosition());
Review comment:
This can potentially be storing a very large amount of `PositionImpl`
instances, that will get tenured and will put pressure on the GC.
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