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  1. IMPALA
  2. IMPALA-6876

Entries in CatalogUsageMonitor are not cleared after invalidation

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Impala 3.0, Impala 2.12.0
    • Fix Version/s: None
    • Component/s: Catalog

      Description

      The CatalogUsageMonitor in the catalog maintains a small cache of references to tables that: a) are accessed frequently in the catalog and b) have the highest memory requirements. These entries are not cleared upon server or table invalidation, thus preventing the GC from collecting the memory of these tables. We should make sure that the CatalogUsageMonitor does not maintain entries of tables that have been invalidated or deleted. 

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            • Assignee:
              Unassigned
              Reporter:
              dtsirogiannis Dimitris Tsirogiannis
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              Dates

              • Created:
                Updated: