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  1. IMPALA
  2. IMPALA-6875

Reservations for ORC scanner

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Details

    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
    • None
    • Backend

    Description

      This tracks the work needed to get ORC to be a first-class citizen when it comes to scanner reservations, i.e. reserving the memory required for holding columns in memory instead of just mallocing.

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        Issue Links

          depends upon

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-4835 HDFS scans should operate with a constrained number of I/O buffers

          • Major - Major loss of function.
          • Resolved
          is related to

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-6636 Use async IO in ORC scanner

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

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              Unassigned Unassigned
              tarmstrong Tim Armstrong
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              Dates

                Created:
                Updated: