[jira] [Assigned] (ARROW-9814) [Python] Crash in test_parquet.py::test_read_partitioned_directory_s3fs

["Antoine Pitrou (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-9814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Pitrou reassigned ARROW-9814:
-------------------------------------

    Assignee: Antoine Pitrou  (was: Ben Kietzman)

> [Python] Crash in test_parquet.py::test_read_partitioned_directory_s3fs
> -----------------------------------------------------------------------
>
>                 Key: ARROW-9814
>                 URL: https://issues.apache.org/jira/browse/ARROW-9814
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: C++, Python
>            Reporter: Antoine Pitrou
>            Assignee: Antoine Pitrou
>            Priority: Critical
>
> This seems to happen with some Minio versions, but is definitely a problem in Arrow.
> The crash message says:
> {code}
> pyarrow/tests/test_parquet.py::test_read_partitioned_directory_s3fs[False] ../src/arrow/dataset/discovery.cc:188:  Check failed: relative.has_value() GetFileInfo() yielded path outside selector.base_dir
> {code}
> The underlying problem is that we pass a full URI for the selector base_dir (such as "s3://bucket/path.") and the S3 filesystem implementation then returns regular paths (such as "bucket/path/foo/bar").
> I think we should do two things:
> 1) error out rather than crash (and include the path strings in the error message), which would be more user-friendly
> 2) fix the issue that full URIs are passed in base_dir



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