hangc0276 opened a new pull request #6862:
URL: https://github.com/apache/pulsar/pull/6862
Fix #6854
### Bug description
The consumer stuck due to `hasEnoughMessagesForBatchReceive` checking:
```
protected boolean hasEnoughMessagesForBatchReceive() {
if (batchReceivePolicy.getMaxNumMessages() <= 0 &&
batchReceivePolicy.getMaxNumBytes() <= 0) {
return false;
}
return (batchReceivePolicy.getMaxNumMessages() > 0 &&
incomingMessages.size() >= batchReceivePolicy.getMaxNumMessages())
|| (batchReceivePolicy.getMaxNumBytes() > 0 &&
INCOMING_MESSAGES_SIZE_UPDATER.get(this) >=
batchReceivePolicy.getMaxNumBytes());
}
```
### Changes
When batchReceivePolicy maxNumMessages > maxReceiverQueueSize, we force
batch receivePolicy maxNumMessages to maxReceiverQueueSize to avoid consumer
stuck when checking `hasEnoughMessagesForBatchReceive`
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