bwi-earth commented on issue #39808:
URL: https://github.com/apache/arrow/issues/39808#issuecomment-2935098907

   I'm having the very same problem (pyarrow 19.0.*)
   
   i've tried:
   
   - `ds.scanner(...).to_reader()`
   - `ds.scanner(...).scan_batches()`
   -  `ds.to_batches`
   
   Memory is consistently growing, each time, at least memory shown by 
`memory_profiler` or `top`, the one  shown by `pa.pa.total_allocated_bytes()` 
is oscilating.
   It seems its not related to any setting 
   
   The source dataset is stored on s3
   


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