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https://issues.apache.org/jira/browse/ARROW-12557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17351151#comment-17351151
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David Li commented on ARROW-12557:
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FWIW, I think this might be the same as ARROW-12810 - so it may be faster now.
(test_s3_proxy_options IIRC stood out to me as a very slow test in that PR as
well, but setting the env var described there fixed that.)
> [Python][C++] S3FileSystem with proxy_options is very slow on Windows
> ---------------------------------------------------------------------
>
> Key: ARROW-12557
> URL: https://issues.apache.org/jira/browse/ARROW-12557
> Project: Apache Arrow
> Issue Type: Bug
> Components: C++, Python
> Affects Versions: 4.0.0
> Reporter: Ian Cook
> Priority: Major
>
> When running {{pytest}} with pyarrow 4.0.0 on a Windows 10 VM, I noticed that
> the {{test_s3_proxy_options}} test takes an extraordinarily long time to
> finish. This is mostly because each call to {{S3FileSystem}} with
> {{proxy_options}} takes about a minute to finish.
> FYI [~sahil1105]
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