315157973 commented on pull request #9163:
URL: https://github.com/apache/pulsar/pull/9163#issuecomment-757893221
The same logic exists in the void messageReceived method. Is it better for
us to prohibit setting this kind of policy in the builder ?
```
if (deadLetterPolicy != null && possibleSendToDeadLetterTopicMessages !=
null && redeliveryCount >= deadLetterPolicy.getMaxRedeliverCount()) {
possibleSendToDeadLetterTopicMessages.put((MessageIdImpl)message.getMessageId(),
Collections.singletonList(message));
}
```
There is retry logic in `deadLetterPolicy`. If the number of retries is
exceeded, how to deal with these messages? But the `deadLetterProducer` in
`consumerImpl` doesn't seem to do any processing.
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