chandrasekhar-188k commented on PR #6374:
URL: https://github.com/apache/hbase/pull/6374#issuecomment-2461813598

   > Thank you.
   > 
   > The thorny issue here backwards-forward compatibility.
   > 
   > i.e. What happens if a client without this patch tries to run a scan on 
server with this change, and vice versa, with all three (json,xml,protobuf) 
encodings.
   > 
   > Unfortnuately, the easiest way to test that is bringing up an old/new 
cluster (can be a single process one), and trying a scan with the new/old 
client manually for all six cases.
   > 
   > To be clear, it's fine for the old server to fail when the new parameters 
are set, but it should work if they are not set, or are at the default value.
   
   i have tested for JSON with new server and new/old clients, i will test for 
other combinations also and update the test results.


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