hangc0276 commented on code in PR #16241:
URL: https://github.com/apache/pulsar/pull/16241#discussion_r907931428
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/PersistentDispatcherMultipleConsumers.java:
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@@ -291,8 +294,17 @@ public synchronized void readMoreEntries() {
@Override
protected void reScheduleRead() {
- topic.getBrokerService().executor().schedule(() -> readMoreEntries(),
MESSAGE_RATE_BACKOFF_MS,
- TimeUnit.MILLISECONDS);
+ if (isRescheduleReadInProgress.compareAndSet(false, true)) {
+ if (log.isDebugEnabled()) {
+ log.debug("[{}] [{}] Reschedule message read in {} ms",
topic.getName(), name, MESSAGE_RATE_BACKOFF_MS);
+ }
+ topic.getBrokerService().executor().schedule(
Review Comment:
We may add the thread pool metric to get the queue length of each thread
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