shibd commented on code in PR #15206:
URL: https://github.com/apache/pulsar/pull/15206#discussion_r852520591
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pulsar-broker/src/main/java/org/apache/pulsar/broker/service/persistent/MessageDeduplication.java:
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@@ -456,19 +457,23 @@ public synchronized void purgeInactiveProducers() {
.toMillis(pulsar.getConfiguration().getBrokerDeduplicationProducerInactivityTimeoutMinutes());
Iterator<java.util.Map.Entry<String, Long>> mapIterator =
inactiveProducers.entrySet().iterator();
+ boolean hasInactive = false;
while (mapIterator.hasNext()) {
java.util.Map.Entry<String, Long> entry = mapIterator.next();
String producerName = entry.getKey();
long lastActiveTimestamp = entry.getValue();
- mapIterator.remove();
-
if (lastActiveTimestamp < minimumActiveTimestamp) {
log.info("[{}] Purging dedup information for producer {}",
topic.getName(), producerName);
+ mapIterator.remove();
highestSequencedPushed.remove(producerName);
highestSequencedPersisted.remove(producerName);
+ hasInactive = true;
}
}
+ if (hasInactive) {
+ takeSnapshot(getManagedCursor().getMarkDeletedPosition());
Review Comment:
I think it's a low-frequency behavior. Inactivity thread check the interval
config is `brokerDeduplicationProducerInactivityTimeoutMinutes`, That default
value is 6 hours.
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