lhotari commented on code in PR #22854: URL: https://github.com/apache/pulsar/pull/22854#discussion_r1628923187
########## pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java: ########## @@ -1067,30 +1074,43 @@ private void doSubscribeTopicPartitions(Schema<T> schema, ConsumerConfigurationData<T> configurationData = getInternalConsumerConfig(); configurationData.setReceiverQueueSize(receiverQueueSize); - futureList = IntStream - .range(0, numPartitions) - .mapToObj( - partitionIndex -> { - String partitionName = TopicName.get(topicName).getPartition(partitionIndex).toString(); - CompletableFuture<Consumer<T>> subFuture = new CompletableFuture<>(); - configurationData.setStartPaused(paused); - ConsumerImpl<T> newConsumer = createInternalConsumer(configurationData, partitionName, - partitionIndex, subFuture, createIfDoesNotExist, schema); - synchronized (pauseMutex) { - if (paused) { - newConsumer.pause(); - } else { - newConsumer.resume(); - } - consumers.putIfAbsent(newConsumer.getTopic(), newConsumer); + CompletableFuture<List<Integer>> partitionsFuture; + if (createIfDoesNotExist || !TopicName.get(topicName).isPersistent()) { + partitionsFuture = CompletableFuture.completedFuture(IntStream.range(0, numPartitions) + .mapToObj(i -> Integer.valueOf(i)) + .collect(Collectors.toList())); + } else { + partitionsFuture = getExistsPartitions(topicName.toString()); + } + subscribeAllPartitionsFuture = partitionsFuture.thenCompose(partitions -> { + if (partitions.isEmpty()) { + partitionedTopics.remove(topicName, numPartitions); + return CompletableFuture.completedFuture(null); + } + List<CompletableFuture<Consumer<T>>> subscribeList = new ArrayList<>(); + for (int partitionIndex : partitions) { + String partitionName = TopicName.get(topicName).getPartition(partitionIndex).toString(); + CompletableFuture<Consumer<T>> subFuture = new CompletableFuture<>(); + configurationData.setStartPaused(paused); + ConsumerImpl<T> newConsumer = createInternalConsumer(configurationData, partitionName, + partitionIndex, subFuture, createIfDoesNotExist, schema); + synchronized (pauseMutex) { + if (paused) { + newConsumer.pause(); + } else { + newConsumer.resume(); } - return subFuture; - }) - .collect(Collectors.toList()); + consumers.putIfAbsent(newConsumer.getTopic(), newConsumer); Review Comment: What if there's an existing entry for the key? does the `newConsumer` have to be closed in that case? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@pulsar.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org