[GitHub] [hadoop] virajjasani commented on pull request #5396: HDFS-16918. Optionally shut down datanode if it does not stay connected to active namenode

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virajjasani commented on PR #5396:
URL: https://github.com/apache/hadoop/pull/5396#issuecomment-1433655322

   Btw just to give you more insights, what I am worried about is cases like 
this:
   
   In this case, dn is connected to active nn
   
   <img width="1397" alt="Screenshot 2023-02-16 at 12 06 25 PM" 
src="https://user-images.githubusercontent.com/34790606/219476091-989e6a73-d54d-4c34-b60f-65152cf6980c.png";>
   
   However in this case, dn is live, it's TCP connection is lost to active nn 
and it is healthy and yet not connected to active nn
   
   <img width="1371" alt="Screenshot 2023-02-16 at 12 06 37 PM" 
src="https://user-images.githubusercontent.com/34790606/219476263-9a039e14-9a0a-4c18-a103-fb448a61cf58.png";>
   
   


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