Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Duplicate
    • Affects Version/s: 2.8.0
    • Fix Version/s: None
    • Component/s: fs/s3
    • Labels:
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      Description

      Even with lazy seek, tests can show that sometimes a short-distance forward seek is triggering a close + reopen, because the threshold for the seek is simply available bytes in the inner stream.

      A configurable threshold would allow data to be read and discarded before that seek. This should be beneficial over long-haul networks as the time to set up the TCP channel is high, and TCP-slow-start means that the ramp up of bandwidth is slow. In such deployments, it will better to read forward than re-open, though the exact "best" number will vary with client and endpoint.

        Attachments

        1. HADOOP-13047.WIP.2.patch
          31 kB
          Rajesh Balamohan
        2. HADOOP-13047.WIP.patch
          8 kB
          Rajesh Balamohan

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              • Assignee:
                stevel@apache.org Steve Loughran
                Reporter:
                stevel@apache.org Steve Loughran
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                • Created:
                  Updated:
                  Resolved: