Jason918 commented on code in PR #15963:
URL: https://github.com/apache/pulsar/pull/15963#discussion_r895289610
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pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentStickyKeyDispatcherMultipleConsumers.java:
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@@ -215,13 +219,19 @@ protected void sendMessagesToConsumers(ReadType readType,
List<Entry> entries) {
final Map<Consumer, Set<Integer>> consumerStickyKeyHashesMap = new
HashMap<>();
for (Entry entry : entries) {
- int stickyKeyHash = getStickyKeyHash(entry);
+ final int stickyKeyHash = getStickyKeyHash(entry);
+ final long ledgerId = entry.getLedgerId();
+ final long entryId = entry.getEntryId();
Consumer c = selector.select(stickyKeyHash);
if (c != null) {
groupedEntries.computeIfAbsent(c, k -> new
ArrayList<>()).add(entry);
consumerStickyKeyHashesMap.computeIfAbsent(c, k -> new
HashSet<>()).add(stickyKeyHash);
+ unMatchConsumerBackoff.reset();
} else {
- addMessageToReplay(entry.getLedgerId(), entry.getEntryId(),
stickyKeyHash);
+ topic.getBrokerService().executor().schedule(() -> {
+ addMessageToReplay(ledgerId, entryId, stickyKeyHash);
+ }, unMatchConsumerBackoff.next(), TimeUnit.MILLISECONDS);
Review Comment:
`unMatchConsumerBackoff.next()` seems odd here.
Consider the case when all entry in `entries` have the same `stickyKeyHash`,
the delay time increases in the same batch entries.
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