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Type:
Sub-task
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 0.23.0
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Fix Version/s: 1.2.0, 2.0.2-alpha
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Component/s: native, performance
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Labels:None
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Target Version/s:
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Hadoop Flags:Reviewed
In HADOOP-7714, we determined that using fadvise inside of the MapReduce shuffle can yield very good performance improvements. But many parts of the shuffle are FileSystem-agnostic and thus operate on FSDataInputStreams and RawLocalFileSystems. This JIRA is to figure out how to allow RawLocalFileSystem to expose its FileDescriptor object without unnecessarily polluting the public APIs.
- is depended upon by
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MAPREDUCE-4511 Add IFile readahead
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- Closed
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