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https://issues.apache.org/jira/browse/ARROW-10846?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17246662#comment-17246662
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Antoine Pitrou commented on ARROW-10846:
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There's already an IO thread pool (see {{AsyncContext}} in
{{arrow/io/interfaces.h}}).
As for S3, it will certainly use the AWS SDK's async APIs (with their own
underlying thread pool, AFAIK).
> [C++] Add async filesystem operations
> -------------------------------------
>
> Key: ARROW-10846
> URL: https://issues.apache.org/jira/browse/ARROW-10846
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++
> Reporter: Antoine Pitrou
> Priority: Major
>
> It would probably be useful to have Future-returning variants of some
> filesystem operations (at least {{GetFileInfo}} and
> {{OpenInput(File|Stream)}}).
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