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  1. Hive
  2. HIVE-24721

Align CacheWriter bufferSize with Llap max alloc

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: llap
    • Labels:
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      Description

      Before bumping to ORC-1.6, LLAP_ALLOCATOR_MAX_ALLOC value was also used as the ORC CacheWriter buffer size.

      As per ORC-238, the max bufferSize argument can be up to 2^(3*8 - 1) – i.e., less than 8Mb.

      In HIVE-23553 we decouple the two configuration (LLAP max alloc and CacheWriter buffer size) – this ticket is to investigate if there is a need for these two conf to converge.

      More details: https://github.com/apache/hive/pull/1823#pullrequestreview-575698916

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              • Assignee:
                Unassigned
                Reporter:
                pgaref Panagiotis Garefalakis
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                • Created:
                  Updated: