andygrove opened a new issue, #17901:
URL: https://github.com/apache/datafusion/issues/17901

   ### Is your feature request related to a problem or challenge?
   
   To help debug OOM issues in Comet, I would like to add trace logging to 
`MemoryReservation` to record every call that changes the size of the 
reservation. I can then analyze that information to better understand the 
events leading up to an issue that I am debugging 
(https://github.com/apache/datafusion-comet/issues/2452).
   
   ### Describe the solution you'd like
   
   The easiest approach is to simply add some `trace!` logging. I am open to 
other ideas though.
   
   ### Describe alternatives you've considered
   
   _No response_
   
   ### Additional context
   
   _No response_


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