keith-turner commented on issue #1998:
URL: https://github.com/apache/accumulo/issues/1998#issuecomment-818062276


   > On a commit are you using KeyExtent prevRow and endRow to determine if the 
range is that same to check if split / merge has occurred?
   
   Yes.  Each external compaction has a UUID that identifies it.  Each tablet 
records running external compactions in the tablets metadata using the UUID.   
A commit message references the UUID and tservers map that to a tablet.  That 
reminds we need to ensure that when a tablet splits or merges, that no external 
compaction metadata propagates.


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