[jira] [Assigned] (ARROW-13685) [Python] Cannot write dataset to S3FileSystem if bucket already exists

["Weston Pace (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Weston Pace reassigned ARROW-13685:
-----------------------------------

    Assignee: Weston Pace

> [Python] Cannot write dataset to S3FileSystem if bucket already exists
> ----------------------------------------------------------------------
>
>                 Key: ARROW-13685
>                 URL: https://issues.apache.org/jira/browse/ARROW-13685
>             Project: Apache Arrow
>          Issue Type: Bug
>          Components: Python
>    Affects Versions: 5.0.0
>            Reporter: Caleb Overman
>            Assignee: Weston Pace
>            Priority: Major
>
> I'm trying to write a parquet file to an existing S3 bucket using the new S3FileSystem interface. However, this is failing with an AWS Access Denied error (I do have necessary access). It appears to be trying to recreate the bucket which already exists.
> {code:java}
> import numpy as np
> import pyarrow as pa
> from pyarrow import fs
> import pyarrow.dataset as ds
> s3 = fs.S3FileSystem(region="us-west-2")
> table = pa.table({"a": range(10), "b": np.random.randn(10), "c": [1, 2] * 5})
> ds.write_dataset(
>     table,
>     "my-bucket/test.parquet",
>     format="parquet",
>     filesystem=s3,
> ){code}
> {code:java}
> OSError: When creating bucket 'my-bucket': AWS Error [code 15]: Access Denied
> {code}
> I'm seeing the same behavior using {{S3FileSystem.create_dir}} when {{recursive=True}}.
> {code:java}
> s3.create_dir("my-bucket/test_dir/", recursive=True) # Fails
> s3.create_dir("my-bucket/test_dir/", recursive=False) # Succeeds
> {code}
>  



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