Antoine Pitrou updated ARROW-3777:
    Component/s:     (was: Python)

> [C++] Implement a mock "high latency" filesystem
> ------------------------------------------------
>                 Key: ARROW-3777
>                 URL: https://issues.apache.org/jira/browse/ARROW-3777
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: C++
>            Reporter: Wes McKinney
>            Assignee: Antoine Pitrou
>            Priority: Major
>             Fix For: 1.0.0
> Some of our tools don't perform well out of the box for filesystems with high 
> latency reads, like cloud blob stores. In such cases, it may be better to use 
> buffered reads with a larger read ahead window. Having a mock filesystem to 
> introduce latency into reads will help with testing / developing APIs for this

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