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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

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Impala 3.2.0
    • Component/s: Backend
    • Labels:
      None
    • Epic Color:
      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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            • Assignee:
              tarmstrong Tim Armstrong
              Reporter:
              tarmstrong Tim Armstrong
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              • Created:
                Updated:
                Resolved: