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https://issues.apache.org/jira/browse/HADOOP-15964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-15964.
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Fix Version/s: 3.3.9
Resolution: Fixed
> Add S3A support for Async Scatter/Gather IO
> -------------------------------------------
>
> Key: HADOOP-15964
> URL: https://issues.apache.org/jira/browse/HADOOP-15964
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.3.0
> Reporter: Steve Loughran
> Assignee: Mukund Thakur
> Priority: Major
> Fix For: 3.3.9
>
>
> HADOOP-11867 is proposing adding a new scatter/gather IO API.
> For an object store to take advantage of it, it should be doing things like
> * coalescing reads even with a gap between them
> * choosing an optimal ordering of requests
> * submitting reads into the executor pool/using any async API provided by the
> FS.
> * detecting overlapping reads (and then what?)
> * switching to HTTP 2 where supported
> Do this for S3A
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