Dimitris Tsirogiannis created IMPALA-6876:
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Summary: Entries in CatalogUsageMonitor are not cleared after
invalidation
Key: IMPALA-6876
URL: https://issues.apache.org/jira/browse/IMPALA-6876
Project: IMPALA
Issue Type: Bug
Components: Catalog
Affects Versions: Impala 3.0, Impala 2.12.0
Reporter: Dimitris Tsirogiannis
Assignee: Dimitris Tsirogiannis
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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