[GitHub] [pulsar] codelipenghui commented on a diff in pull request #16336: [improve][java-client] Improve performance of multi-topic consumer with more than one IO thread

[GitBox <gi...@apache.org>]

codelipenghui commented on code in PR #16336:
URL: https://github.com/apache/pulsar/pull/16336#discussion_r912340976


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pulsar-client/src/main/java/org/apache/pulsar/client/impl/MultiTopicsConsumerImpl.java:
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@@ -1045,6 +1054,12 @@ private void doSubscribeTopicPartitions(Schema<T> schema,
                         String partitionName = TopicName.get(topicName).getPartition(partitionIndex).toString();
                         CompletableFuture<Consumer<T>> subFuture = new CompletableFuture<>();
                         configurationData.setStartPaused(paused);
+                        BatchReceivePolicy internalBatchReceivePolicy = BatchReceivePolicy.builder()
+                                .maxNumMessages(Math.max(receiverQueueSize / 2, 1))
+                                .maxNumBytes(-1)
+                                .timeout(0, TimeUnit.MILLISECONDS)
+                                .build();
+                        configurationData.setBatchReceivePolicy(internalBatchReceivePolicy);

Review Comment:
   @Jason918 Fixed.



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