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  1. IMPALA
  2. IMPALA-8223

Remove mem-pool.total-bytes and hash-table.total-bytes metrics

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Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • Impala 3.2.0
    • Backend
    • None
    • ghx-label-8

    Description

      I think we should remove these metrics - I'm not aware of a use case for them and I haven't seen them be of use since I've been working on Impala's memory management. Generally memory consumption is only interesting when broken down by query.

      The hash-table metric is also wrong since it doesn't include the actual hash table buckets.

      The description of the mem-pool metric is totally wrong - "The current size of the memory pool shared by all queries".

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            tarmstrong Tim Armstrong
            tarmstrong Tim Armstrong
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