rohangarg commented on PR #14616:
URL: https://github.com/apache/druid/pull/14616#issuecomment-1649459221

   A couple of doubts : 
   
   1. > DROP task does not do anything since the segment is not present in 
segmentsToDrop anymore. Thus the result holder remains stuck in pending state.
   
   Are we sure that the DROP request actually gets stuck in pending state? It 
appears from the current code 
(https://github.com/apache/druid/blob/master/server/src/main/java/org/apache/druid/server/coordination/SegmentLoadDropHandler.java#L463)
 that the status is marked success after either the delete request is scheduled 
async or run inline.
   
   2. Since we changed the return type object of the HTTP call, will it be 
backwards compatible? For instance if the historicals are updated before 
coordinator (as we suggest), could it happen that the historicals return new 
object types which an old coordinator wouldn't be able to understand?


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