westonpace commented on issue #11934:
URL: https://github.com/apache/arrow/issues/11934#issuecomment-1010308884
I poked around at this a bit. The error seems to be that write_dataset is
creating files with the application/xml content type and then
`minio.s3::save_object` is trying to parse the object as XML because of this
content type. I'm not entirely sure why application/xml is being set (I'm
pretty sure we default in Arrow to not setting the content type at all) so I'll
look into that a bit more.
If I hardcode the C++ to set the content-type to something else
(application/parquet) then minio.s3::save_object works fine.
```
(base) pace@pace-desktop:~$ mc stat myminio/bucket/test/part-0.parquet
Name : part-0.parquet
Date : 2022-01-11 09:41:14 HST
Size : 1.0 KiB
ETag : 6b320c21546ccf5bdb5920a709562598-1
Type : file
Metadata :
Content-Type: application/xml
```
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