Xuanwo commented on issue #6934:
URL: https://github.com/apache/arrow-rs/issues/6934#issuecomment-2569434780
> Edit: more accurate version
>
> ```
> let mut writer = BufWriter::new(store, path);
>
> let mut buf = vec![];
> while something {
> buf.extend_from_slice(&some_data);
>
> if buf.len() > SOME_SIZE {
> writer.write_all(&buf).await?
> buf.clear();
> }
> }
>
> writer.flush().await?;
> writer.shutdown().await?;
> ```
Hi, if the code here is correct, it's possible that the `buf` still have
content after the `while` loop finished.
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