amaliujia commented on PR #11930:
URL: https://github.com/apache/ozone/pull/11930#issuecomment-6649138988

   @adoroszlai 
   
   Can you give me some suggestion here:
   
   So we have this feature under development: 
https://issues.apache.org/jira/browse/HDDS-15463. On client side the feature is 
hidden under a config 
https://github.com/apache/ozone/blob/d4e3fb861583922d518501548d3fa9c365e7376e/hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/OzoneClientConfig.java#L339.
   
   Meanwhile, I also try to have a DN version number so during development I 
can have the check for DN compatibility.  For example, a pipeline for this 
feature needs to ensure all DN supporting the feature. In this case, I assume 
we also need a HDDS version number to indicate on DN.
   
   
   For client config, I understand we can have the config starting from day 0 
for a incomplete, under development feature.
   
   But how about the practice of HDDSVersion on DN side? Can we also have the 
version number starting from day 0 or we should only add a version number after 
the feature is complete on DN?


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