Design (LLD) a file sharing system like Dropbox - Machine CodingSubhahu Jain·Jul 15, 2023·8 min readTable of contentsIssues in Above Design🔥 Problem 1: FileStorageManager Singleton = Global Bottleneck❌ What we Did❌ Why This Is DangerousSolution🔥 Problem 2: File Data Stored in Memory (Instant Red Flag)❌ What we Did❌ Why This Is a Deal-BreakerSolution🔥 Problem 3: No Concurrency Model for File Updates❌ What’s Missing CompletelySolution🔥 Problem 4: Version Control Is Claimed, Not Designed❌ Claimed Feature❌ Actual CodeSolution🔥 Problem 5: Proxy Pattern Is Used Incorrectly for Permissions❌ What we Did❌ Why This Is UnsafeSolution🔥 Problem 6: Folder Model Breaks at Scale❌ What we Did❌ Why This Is NaiveSolution🔥 Problem 7: No Real Synchronization Model❌ Claimed Feature❌ Missing RealitySolution🔥 Problem 8: Observer Pattern for Collaboration Will Explode❌ What we Implied❌ Why This Is DangerousSolutionNOTEWeb DevelopmentPythonJavaScriptProgramming BlogsCSS
