shibd commented on code in PR #17318:
URL: https://github.com/apache/pulsar/pull/17318#discussion_r990634402
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pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBase.java:
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@@ -839,7 +839,7 @@ protected boolean canEnqueueMessage(Message<T> message) {
protected boolean enqueueMessageAndCheckBatchReceive(Message<T> message) {
int messageSize = message.size();
- if (canEnqueueMessage(message) && incomingMessages.offer(message)) {
+ if (isValidConsumerEpoch(message) && canEnqueueMessage(message) &&
incomingMessages.offer(message)) {
Review Comment:
> If the consumer has pending receive requests. The message will be used to
complete the pending receive requests directly.
For users, when having pending receive, It does not call the
`redeliverUnacknowledgedMessages` method. The following usage is recommended.
``` java
consumer.receive(timeOut);
// do something.
consumer.redeliverUnacknowledgedMessages();
```
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