Antoine Pitrou created ARROW-11907:
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Summary: [C++] Use our own executor in S3FileSystem
Key: ARROW-11907
URL: https://issues.apache.org/jira/browse/ARROW-11907
Project: Apache Arrow
Issue Type: Task
Components: C++
Reporter: Antoine Pitrou
We use the AWS SDK async APIs in some places in S3FileSystem, but all they do
is spawn a separate thread and run the sync API in it.
Instead we should use our IO executor, which would:
1) put an upper bound on the number of threads started
2) (presumably) reduce latency by reusing threads instead of spawning a
throwaway thread for each async call
3) allow for cancellation
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