iamqq23ue commented on issue #5128:
URL: https://github.com/apache/rocketmq/issues/5128#issuecomment-1253403694

   > Hi @iamqq23ue @azhsmesos, I listed some related documents[1][2][3], 
similar features have been merged into develop branch, and the first version of 
RocketMQ 5.0 will be released soon.
   > 
   > [1] 
https://github.com/apache/rocketmq/blob/develop/docs/cn/controller/deploy.md 
[2] https://github.com/apache/rocketmq/wiki/RIP-44-Support-DLedger-Controller 
[3] 
https://github.com/apache/rocketmq/wiki/RIP-34-Support-quorum-write-and-adaptive-degradation-in-master-slave-architecture
   
   It looks very functional, thanks.But  IMO,I noticed that the following quote 
maybe wrong . In my test, even if SYNC_MASTER is set, two slaves still only 
need one slave to return ACK and the other to be asynchronous.version 4.9.1.
   In addition, is RIP-34 still unable to set which slave is synchronous and 
which is asynchronous?
   
   quote:
   "However, synchronous replication returns only after each copy is confirmed. 
On the other hand, in synchronous replication mode, if a slave in the group 
feigned death, the whole transmission would fail until manual processing."


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