Page Comparison

The goal of this page is to document the design of the Tracker Audit Metrics.

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• Add an additional Cube table to the AuditLog custom dataset to hold metrics.
• The properties of the cube will be as follows
  • Resolutions: 1h, 6h, 24h, 1w, 1m, 3m, 6m, 1y
  • Aggs: 
    • namespace (default ns1 ns2)
    • namespace,entity_type,entity_name (default,stream,stream1 default,dataset,dataset1)
    • namespace,entity_type,entity_name,program (default,stream,stream1,program1 default,dataset,dataset1,program2)
  • Measurements: 
    • accessesaccess
    • access_reads
    • access_writes
    • access_unknowns
    • creates
    • updates
    • truncates
    • deletes
    • metadata_changesread
    • write
    • unknown
    • create
    • update
    • truncate
    • delete
    • metadata_change
    • count
• Queries to OLAP cube
  • "Show me the total number of reads in the system in the past 1 hour."

    • {
          "aggregation": "agg2",
          "resolution": 3600,
          "startTs": now,
          "endTs":   now-1h,
          "measurements": {"access_reads": "SUM"},
          "limit": 1
      }

       

  • "Show me the 5 datasets with the most writes in the past 24 hours."

    • {
          "aggregation": "agg2",
          "resolution": 86400,
          "startTs": now,
          "endTs":   now-24h,
          "measurements": {"access_writes": "SUM"},
       "dimensionValues" : { "entity_type" : "dataset" },
       "groupByDimensions": ["namespace","entity_type","entity_name"],
       "limit" : 10000
      }

    • Results then sorted and top 5 returned

  • "Show me the 5 streams with the most metadata_changes in the past 7 days."

    • {
          "aggregation": "agg2",
          "resolution":604800,
          "startTs": now,
          "endTs":   now-7d,
          "measurements": {"metadata_changes": "SUM"},
       "dimensionValues" : { "entity_type" : "stream" },
       "groupByDimensions": ["namespace","entity_type","entity_name"],
       "limit" : 10000
      }

    • Results then sorted and top 5 returned

  • "Show me the 5 namespaces with the most reads in the past 1 hour."

    • {
          "aggregation": "agg2",
          "resolution":86400,
          "startTs": now,
          "endTs":   now-1h,
          "measurements": {"access_reads": "SUM"},
       "groupByDimensions": ["namespace"],
       "limit" : 10000
      }

    • Results then sorted and top 5 returned

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