EugenDueck commented on issue #6209: [broker] add feature BrokerDeduplicationAcrossProducers URL: https://github.com/apache/pulsar/pull/6209#issuecomment-583628102 @codelipenghui I've implemented it the way I believe @sijie suggested: > The producer name can become a producer group name. If multiple producers are using same producer name, they are in the same group. So I did not add a `producerGroupName` field. What I added is a producer group mode field. If the producer group mode is `Exclusive` (the default), everything stays as it was before: Only one producer with the same name can be connected at any one time. If however the group mode is `Parallel`, then multiple producers with the same `producerName` can connect at the same time. So _group mode_ and _deduplication_ are orthogonal and we don't need another deduplication flag. In order to have deduplication across a producer group, all that needs to be done is 1. use the parallel producer group mode and 1. set the usual `brokerDeduplicationEnabled` to `true`.
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