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  1. IMPALA
  2. IMPALA-7540

Intern common strings in catalog

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Impala 3.1.0
    • Fix Version/s: Impala 3.2.0
    • Component/s: None
    • Labels:
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    • Epic Color:
      ghx-label-2

      Description

      Using jxray shows that there are many common duplicate strings in the catalog. For example, each table repeats the database name, and metadata like the HMS parameter maps reuse a lot of common strings like "EXTERNAL" or "transient_lastDdlTime". We should intern these to save memory.

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            • Assignee:
              tlipcon Todd Lipcon
              Reporter:
              tlipcon Todd Lipcon
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              • Created:
                Updated:
                Resolved: