codelipenghui commented on a change in pull request #11455:
URL: https://github.com/apache/pulsar/pull/11455#discussion_r681364064
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File path:
pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBase.java
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@@ -895,24 +897,27 @@ private void pendingBatchReceiveTask(Timeout timeout)
throws Exception {
protected void triggerListener() {
// Trigger the notification on the message listener in a separate
thread to avoid blocking the networking
// thread while the message processing happens
- Message<T> msg;
- do {
- try {
- msg = internalReceive(0, TimeUnit.MILLISECONDS);
+ try {
+ // Control executor to call MessageListener one by one.
+ if (executorQueueSize.get() < 1) {
Review comment:
LGTM, the incoming messages will trigger the listener and add the
message to the thread pool, so the executorQueueSize is required.
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