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  1. PuppetDB
  2. PDB-4640

Add a file index to catalog_resources for CD4PE Impact Analysis

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: PDB 6.9.0
    • Component/s: None
    • Template:
    • Release Notes:
      New Feature
    • Release Notes Summary:
      Hide
      If you have the PostgreSQL extension pg_trgm configured, adds an index on the catalog_resources table's file column.

      In a separate release notes entry, we have deprecated running PostgreSQL without the pg_trgm extension
      Show
      If you have the PostgreSQL extension pg_trgm configured, adds an index on the catalog_resources table's file column. In a separate release notes entry, we have deprecated running PostgreSQL without the pg_trgm extension
    • QA Risk Assessment:
      Needs Assessment

      Description

      As seen in CDPE-2850, CD4PE's impact analysis puts a great deal of stress on the catalog_resources table doing selects against the file row. We have seen in customer cases that performance can be greatly improved if an index is added and autovacuum frequency is increased:

      CREATE INDEX catalog_resources_file_idx on catalog_resources USING gin (file gin_trgm_ops) WHERE file IS NOT NULL;
      ALTER TABLE catalog_resources SET (autovacuum_analyze_scale_factor = 0.01);
      ALTER INDEX catalog_resources_file_idx SET (fastupdate=false);
      

      I do not see much downside to these changes being the default.

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              Assignee:
              austin.blatt Austin Blatt
              Reporter:
              adam.bottchen Adam Bottchen
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                Updated:
                Resolved:

                  Zendesk Support