pepijnve commented on issue #16193:
URL: https://github.com/apache/datafusion/issues/16193#issuecomment-2917010803

   Just tested on Linux. With `USE_TASK = false` I see this
   
   ```
   Running query; will time out after 5 seconds
   InfiniteStream::poll_next 10000 times
   InfiniteStream::poll_next 20000 times
   InfiniteStream::poll_next 30000 times
   InfiniteStream::poll_next 40000 times
   InfiniteStream::poll_next 50000 times
   InfiniteStream::poll_next 60000 times
   InfiniteStream::poll_next 70000 times
   InfiniteStream::poll_next 80000 times
   InfiniteStream::poll_next 90000 times
   InfiniteStream::poll_next 100000 times
   InfiniteStream::poll_next 110000 times
   InfiniteStream::poll_next 120000 times
   InfiniteStream::poll_next 130000 times
   InfiniteStream::poll_next 140000 times
   InfiniteStream::poll_next 150000 times
   InfiniteStream::poll_next 160000 times
   InfiniteStream::poll_next 170000 times
   InfiniteStream::poll_next 180000 times
   InfiniteStream::poll_next 190000 times
   ...
   ```
   
   with `USE_TASK = true`
   
   ```
   Running query; will time out after 5 seconds
   InfiniteStream::poll_next 10000 times
   InfiniteStream::poll_next 20000 times
   InfiniteStream::poll_next 30000 times
   InfiniteStream::poll_next 40000 times
   InfiniteStream::poll_next 50000 times
   InfiniteStream::poll_next 60000 times
   InfiniteStream::poll_next 70000 times
   InfiniteStream::poll_next 80000 times
   InfiniteStream::poll_next 90000 times
   InfiniteStream::poll_next 100000 times
   InfiniteStream::poll_next 110000 times
   Timeout reached!
   No result (cancelled or empty)
   Exiting, stream will be dropped now
   InfiniteStream::poll_next 120000 times
   InfiniteStream::poll_next 130000 times
   InfiniteStream::poll_next 140000 times
   InfiniteStream::poll_next 150000 times
   InfiniteStream::poll_next 160000 times
   InfiniteStream::poll_next 170000 times
   ...
   ```
   
   neither process stops until killed.


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