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[fix][broker] Fix NPE while publishing Metadata-Event with not init producer #24079

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Mar 17, 2025
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[fix][broker] Fix NPE while publishing Metadata-Event with not init producer #24079

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2 changes: 2 additions & 0 deletions ...roker/src/main/java/org/apache/pulsar/broker/service/PulsarMetadataEventSynchronizer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -120,6 +120,7 @@ private void publishAsync(MetadataEvent event, CompletableFuture<Void> future) {
if (!isProducerStarted()) {
log.info("Producer is not started on {}, failed to publish {}", topicName, event);
future.completeExceptionally(new IllegalStateException("producer is not started yet"));
return;
}
producer.newMessage().value(event).sendAsync().thenAccept(__ -> {
log.info("successfully published metadata change event {}", event);
Expand All @@ -135,6 +136,7 @@ private void publishAsync(MetadataEvent event, CompletableFuture<Void> future) {
private void startProducer() {
if (isClosingOrClosed()) {
log.info("[{}] Skip to start new producer because the synchronizer is closed", topicName);
return;
}
if (producer != null) {
log.error("[{}] Failed to start the producer because the producer has been set, state: {}",
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