[GitHub] [pulsar] wangjialing218 edited a comment on pull request #10129: fix the default retry letter and dead letter topic name

[GitBox <gi...@apache.org>]

wangjialing218 edited a comment on pull request #10129:
URL: https://github.com/apache/pulsar/pull/10129#issuecomment-814539432


   @merlimat @codelipenghui Currently a cosumer with retry message enable could receive another topic's retry message due to the same retry letter topic name.
   Consider a consumer subscribe to a topic with retry topic enable, and another consumer subscribe to another topic under same namespace with same subscription name, both of the two consumers will subscribe to the retry topic {NamespaceName}-{Subscription}-RETRY, and they could receive the retry messages from each other.
   Changing default name of retry letter topic will not cause compatibility issues when users upgrade pulsar client, because consumer will automatic subscribe the retry letter topic at builder time. 
   For dead letter topic, since user need to specify the topic name, we need to consider how to handle the compatibility issue. such as only change the default name of retry letter name?


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org