Deng An created PARQUET-2477:
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Summary: Files opened by ParquetFileWriter’s appendFile method
should to be closed correctly
Key: PARQUET-2477
URL: https://issues.apache.org/jira/browse/PARQUET-2477
Project: Parquet
Issue Type: Bug
Components: parquet-hadoop
Affects Versions: 1.13.1
Reporter: Deng An
I try to use the `appendFile` method of `ParquetFileWriter` to merge some
smaller Parquet files into one large parquet file. After I finished the merge,
I tried deleting the smaller files, but couldn't actually delete them.
After reading the ParquetFileWriter source code, I found that the file he
opened was not closed in the end method, which seemed unreasonable.
When testing on `Windows`, it was found that these implicitly opened files
cannot be deleted or renamed. This seems to be related to Windows file handles.
But it's worked fine on macOS.
Anyway, I will submit a patch to ensure that files opened through the
appendFile function are closed correctly.
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