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https://issues.apache.org/jira/browse/ARROW-17898?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raúl Cumplido updated ARROW-17898:
----------------------------------
Fix Version/s: (was: 8.0.2)
> pyarrow.parquet.read_table fs (filesystem) argument does not work with
> fsspec.implementations.arrow.ArrowFSWrapper objects
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: ARROW-17898
> URL: https://issues.apache.org/jira/browse/ARROW-17898
> Project: Apache Arrow
> Issue Type: Bug
> Components: Parquet, Python
> Affects Versions: 8.0.1
> Environment: Python 3.8.10
> Reporter: Anshul Kanakia
> Priority: Major
>
> My version of PyArrow=8.0.0. When I attempt to use a PyArrow LocalFileSystem
> object wrapped with ArrowFSWrapper it results in the following error:
> import pyarrow as pa
> import pyarrow.parquet as pq
> from fsspec.implementations.arrow import ArrowFSWrapper
> {quote}lfs = pa.fs.LocalFileSystem()
> fs = ArrowFSWrapper(lfs)
> pat = pq.read_table("some/file/location.parquet", filesystem=fs)
> ---
> {{OSError Traceback (most recent call last) Cell In [12], line 1 ----> 1 pat
> = pq.read_table( *2* "some/file/location.parquet", *3* filesystem=fs) File
> /usr/local/lib/python3.8/dist-packages/pyarrow/parquet/__init__.py:2737, in
> read_table(source, columns, use_threads, metadata, schema,
> use_pandas_metadata, memory_map, read_dictionary, filesystem, filters,
> buffer_size, partitioning, use_legacy_dataset, ignore_prefixes, pre_buffer,
> coerce_int96_timestamp_unit, decryption_properties) *2730* raise ValueError(
> *2731* "The 'metadata' keyword is no longer supported with the new " *2732*
> "datasets-based implementation. Specify " *2733* "'use_legacy_dataset=True'
> to temporarily recover the old " *2734* "behaviour." *2735* ) *2736* try:
> -> 2737 dataset = _ParquetDatasetV2( *2738* source, *2739* schema=schema,
> *2740* filesystem=filesystem, *2741* partitioning=partitioning, *2742*
> memory_map=memory_map, *2743* read_dictionary=read_dictionary, *2744*
> buffer_size=buffer_size, *2745* filters=filters, *2746*
> ignore_prefixes=ignore_prefixes,}}
> ...
> File /usr/local/lib/python3.8/dist-packages/pyarrow/io.pxi:193, in
> pyarrow.lib.NativeFile.get_random_access_file() File
> /usr/local/lib/python3.8/dist-packages/pyarrow/io.pxi:222, in
> pyarrow.lib.NativeFile._assert_seekable() OSError: only valid on seekable
> files{quote}
> If I instead use just the LocalFileSystem object without the ArrowFSWrapper,
> it works as expected.
>
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