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  1. Documentation
  2. DOCS-16389

Investigate changes in SERVER-75754: Consider moving query.planCacheTotalSizeEstimateBytes and query.planCacheTotalQueryShapes into query.planCache sub-document.

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      Original Downstream Change Summary

      serverStatus fields:

      metrics.query.planCacheTotalQueryShapes
metrics.query.planCacheTotalSizeEstimateBytes

      moved to

      metrics.query.planCache.totalQueryShapes
metrics.query.planCache.totalSizeEstimateBytes

      Example planCache sub doc:

      "planCache" : {
        "totalQueryShapes" : NumberLong(0),
        "totalSizeEstimateBytes" : NumberLong(0),
        "classic" : {
                "hits" : NumberLong(0),
                "misses" : NumberLong(2)
        },
        "sbe" : {
                "hits" : NumberLong(0),
                "misses" : NumberLong(0)
        }
},

      Description of Linked Ticket

      In SERVER-70025 we introduced 4 new plan cache counters which are surfaced via query.planCache sub-document.

      We should consider moving all plan cache related counters into the query.planCache sub-document to group them logically together.

      The two which are currently housed in the query document are:

      • query.planCacheTotalSizeEstimateBytes
      • query.planCacheTotalQueryShapes

            Assignee:
            alison.huh@mongodb.com Alison Huh
            Reporter:
            backlog-server-pm Backlog - Core Eng Program Management Team
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              Created:
              Updated:
              Resolved:
              31 weeks, 4 days ago