The Case of the Misnamed Cities: CAST Analysis of a Google Maps Incident
summary
Google Maps displays nine misnamed cities after an imported US Census file uses “balance” names, manual fixes and an automated rollback conflict, and the original RCA blames a limited evaluation tool and ad hoc state sampling. CAST maps control loops across the maps database, import policy, evaluation tool and incident response, identifies an environmental trend of growing dataset size, and produces 22 recommendations including a reengineered import policy, probe alerts and provider notifications and highlights 9 misnamed cities as the scale that exposed systemic weaknesses.
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chapters (9)
- 0:00Misnamed Cities incident intro
- 1:21Incident overview and impact
- 4:11Root cause findings
- 8:50Accident models and CAST intro
- 15:16Systems theory and feedback
- 19:13CAST analysis of incident
- 26:55Systemic factors and CAST
- 30:52RCA vs CAST comparison
- 33:00Key takeaways
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