[GitHub] [pulsar] merlimat commented on issue #15610: Python pulsar-client 2.8 is not compatible with broker 2.10.0

[GitBox]

merlimat commented on issue #15610:
URL: https://github.com/apache/pulsar/issues/15610#issuecomment-1127133977

   @zbentley It looks some weird stuff with the local DNS. 
   
   I can repro locally too and switching the url to `pulsar://127.0.0.1:6650` 
works. I don't think the 2.10 broker is involved at all in the interaction. 
   
   The 2.8.1 client is connecting to the IPv6 address first and not trying any 
other one: 
   
   <img width="1105" alt="image" 
src="https://user-images.githubusercontent.com/62500/168506715-1d1340de-12dd-450c-91a3-ae20eb9de6e4.png";>
   
   2.10 client is trying all the IP addresses instead, first IPv6 and then it 
falls back to IPv4: 
   
   <img width="1328" alt="image" 
src="https://user-images.githubusercontent.com/62500/168506855-f77089ac-266b-48e3-ac01-340f7c980a7d.png";>
   


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