[jira] [Created] (ARROW-6740) Unable to delete closed MemoryMappedFile on Windows

["Sergey Mozharov (Jira)" <ji...@apache.org>]

Sergey Mozharov created ARROW-6740:
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             Summary: Unable to delete closed MemoryMappedFile on Windows
                 Key: ARROW-6740
                 URL: https://issues.apache.org/jira/browse/ARROW-6740
             Project: Apache Arrow
          Issue Type: Bug
          Components: Python
    Affects Versions: 0.14.1
         Environment: Windows 10
            Reporter: Sergey Mozharov


{code:java}
import os
import pyarrow as pa

# Create a file and memory-map it
file_name = 'path-to-a-new-file'
mmap = pa.create_memory_map(file_name, 100)

# or open an existing file
# file_name = 'path-to-an-existing-file'
# mmap = pa.memory_map(file_name)

# close it
mmap.close()
mmap.closed  # True

# try to delete it (can't delete until the python interpreter is killed)
os.remove(file_name)  # PermissionError

# Note: opening an existing file as `pa.input_stream` works as expected{code}



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