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  1. Hadoop Common
  2. HADOOP-11694 Über-jira: S3a phase II: robustness, scale and performance
  3. HADOOP-13531

S3A output streams to share a single LocalDirAllocator for round-robin drive use

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    Details

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

      S3AOutputStream uses LocalDirAllocator to choose a directory from the comma-separated list of buffers —but it creates a new instance for every output stream. This misses a key point of the allocator: for it to do round-robin allocation, it needs to remember the last disk written to. If a new instance is used for every file: no history.

        Attachments

        1. HADOOP-13531-001.patch
          7 kB
          Steve Loughran

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