Design (LLD) Google Maps - Machine CodingSubhahu Jain·Dec 31, 2022·11 min readTable of contentsCodeIssues in above design🔥 Problem 1: Map Rendering Is Stateless in Code, Stateful in Reality❌ What we Did❌ Why This Is a Core Design FlawSolution🔥 Problem 2: TileCachingService Is NOT Thread-Safe❌ What we Did❌ Why This Breaks Under LoadSolution🔥 Problem 3: Tile Key Design Is Incorrect❌ What we Did❌ Why This Is Fundamentally WrongSolution🔥 Problem 4: Route Planning Is Naive and Unrealistic❌ What we Did❌ Why This Is a Huge Red FlagSolution🔥 Problem 5: SearchService Is O(N) and Unscalable❌ What we Did❌ Why This Will Never ScaleSolution🔥 Problem 6: CacheService Is Incorrect Under Concurrency❌ What we Did❌ Why This Is DangerousSolution🔥 Problem 7: Transportation Strategy Is Oversimplified❌ What we Did❌ Why This Is UnrealisticSolution🔥 Problem 8: No Concurrency Model for User Requests❌ Missing EntirelySolutionJavaScriptPythonProgramming BlogsGeneral ProgrammingAWS
