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  1. Hive
  2. HIVE-20649

LLAP aware memory manager for Orc writers

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 3.2.0, 4.0.0
    • 3.2.0, 4.0.0-alpha-1
    • None
    • None

    Description

      ORC writer has its own memory manager that assumes memory usage or memory available based on JVM heap (MemoryMX bean). This works on tez container mode execution model but not in LLAP where container sizes (and Xmx) are typically high and there are multiple executors per LLAP daemon. This custom memory manager should be aware of memory bounds per executor. 

      Attachments

        1. HIVE-20649.1.patch
          7 kB
          Prasanth Jayachandran
        2. HIVE-20649.2.patch
          8 kB
          Prasanth Jayachandran
        3. HIVE-20649.3.patch
          8 kB
          Prasanth Jayachandran
        4. HIVE-20649.4.patch
          8 kB
          Prasanth Jayachandran
        5. HIVE-20649.5.patch
          8 kB
          Prasanth Jayachandran
        6. HIVE-20649.6.patch
          8 kB
          Prasanth Jayachandran

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            prasanth_j Prasanth Jayachandran Assign to me
            prasanth_j Prasanth Jayachandran
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              Updated:
              Resolved:

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