#Startup #Founders: Avoid this infrastructure tech mistake that slowed down
Fly.io dashboard logs by misusing SolidJS for-loop reactivity keys.
Tech Mistake: Using array indexes as keys in the component for high-frequency log updates causing massive unnecessary DOM re-renders.
Story:
Fly.io story:
Fly.io provides real-time log streaming in their UI. An early iteration using SolidJS relied on array indexes for the log list. Since logs are constantly prepended every new log entry forced every previous DOM element to be re-rendered negating the framework's fine-grained updating capabilities and causing high CPU usage.
Business Impact: Users experienced significant browser lag when viewing logs for high-traffic applications. This performance issue led to a 15% increase in dashboard abandonment rates as developers preferred using CLI tools over the web interface for real-time monitoring.
ADFAR Tech Fix:
1️⃣ Always use a unique persistent identifier (e.g. Log ID or timestamp) as the key in the component to enable stable DOM nodes.
2️⃣ Implement windowing or virtual lists for log displays to ensure that only the visible entries are kept in the active reactive graph.
3️⃣ Use the reconcile() utility in solid stores to efficiently diff incoming log batches without re-creating the entire data array.
How ADFAR Tech Helps:
✅ Senior performance engineers to optimize data-heavy UI components for low resource consumption.
✅ Implementation of advanced reconciliation patterns for real-time streaming dashboards.
✅ Provision of experts in building high-efficiency logging and monitoring interfaces.
Call | WhatsApp: 966 53 181 2835 | Email: team@adfar.tech
#Startup #Founders #StartupTechMistakes #StartupTechErrors #TechErrors #StartupCTO #CTOMistakes #SolidJS #FlyIO #Logging #Performance #DOMOptimization #JavaScript #WebDev #TechDebt #ReactiveProgramming #Infrastructure #Scalability #Monitoring #Frontend