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DejaBug Regression Alert
Similar to PM-2023-09-12: "UI freeze caused by heavy work on main thread."
Detected pattern:
• File: CheckoutViewModel
• Usage of heavy computation inside
viewModelScope.launch(Dispatchers.Main)
Suggestion: Move heavy work to IO dispatcher as recommended in PM-2023-09-12.
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POST-MORTEM: PM-2024-01-15
Issue: Memory leak in WebSocket connection
Root Cause: Connection not properly closed...
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Your team solved this before. See PM-2024-01-15
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Real regression alert from DejaBug on a GitHub Pull Request
DejaBug Alert: High Risk of Regression
This PR is 87% similar to bug #342 from 3 months ago:
"App crash when loading large datasets in background"
Detected Issues:
- ⚠️Heavy computation on main thread (line 47 in
DataProcessor.kt) - ⚠️No error handling for network failures (line 89)
- ⚠️Missing null check (line 102)
What happened last time:
Root cause: Background task blocked UI thread
Impact: 2,400 users affected, 4.2★ avg rating drop
Fix time: 3 hours emergency hotfix
Recommended Actions:
- ✓Move computation to
Dispatchers.IO(see example) - ✓Add try-catch for
NetworkException - ✓Add null safety check for
user.profile - 📖Review full postmortem: /postmortems/PM-342.md
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