Glossary

Drift

The slow change of a website away from what a program was written against, until a step or a field stops matching.

Kaabist watches for drift in canary runs and production jobs: candidates that stop matching, fields that come back empty, values outside their usual range. A program that drifted sends program.drift_detected.

example

{
  "type": "program.drift_detected",
  "data": {
    "program": "prg_4kTz",
    "field": "price",
    "kind": "fill_rate_drop",
    "source": "statistics"
  }
}

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