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  1. Hadoop HDFS
  2. HDFS-3228

Use fadvise in local read path

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: hdfs-client, performance
    • Labels:
      None
    • Target Version/s:

      Description

      The read path through BlockReaderLocal does not take advantage of readahead or drop-behind in the way that BlockSender does. We could arguably stand to gain even more from hinting about read patterns to the kernel here, so we should add the same mechanisms to BlockReaderLocal.

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              • Assignee:
                henryr Henry Robinson
                Reporter:
                henryr Henry Robinson
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                Dates

                • Created:
                  Updated: