thomas-bousquet opened a new pull request, #1417:
URL: https://github.com/apache/pulsar-client-go/pull/1417
### Motivation
When the retry mechanism is enabled, the RLQ producer first sends messages
to the RLQ topic using the producer name if passed in the producer options
inside the `DLQPolicy`.
However, when the delivery count is reached and the consumer `Nack()` the
message, **the DLQ producer sending messages to the DLQ uses RLQ producer
name.**
This is an issue, especially for message deduplication process where each
producers must have a globally unique name for a given topic.
### Modifications
This PR adds the `DeadLetterTopicProducerName` field to the `DLQPolicy` in
order to allow either a custom producer name or let the broker create the
producer name (ex: `pulsar-1-1`)
### Verifying this change
- Added integration tests
`TestWithoutDeadLetterTopicDeadLetterTopicProducerName`
- Added integration tests
`TestWithDeadLetterTopicDeadLetterTopicProducerName`
### Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API: no
- The schema: no
- The default values of configurations: no
- The wire protocol: no
### Documentation
- Does this pull request introduce a new feature? no
- The `DeadLetterTopicProducerName` field added is documented where it's
defined in the `DLQPolicy` struct
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