लोड ब्यालान्सिङ् आउने अनुरोधहरूलाई बहु सर्भरहरूमा वितरण गर्दछ — तेर्सो स्केलिङ् सक्षम गर्दै, उपलब्धता सुधार गर्दै, र कुनै एक सर्भरलाई अत्यधिक भारमा पर्न रोकिदै। यो स्केलेबल, विश्वस्त प्रणालीहरूको मौलिक घटक हो।
लोड ब्यालान्सरले के गर्दछ
A LOAD BALANCER sits in front of multiple servers and distributes requests among them:
Client → LOAD BALANCER → ┬→ Server 1
├→ Server 2
└→ Server 3
→ spreads load → no single server is overwhelmed (enables HORIZONTAL scaling)
→ routes around FAILED servers (health checks) → high AVAILABILITY
→ a single entry point for clients
लोड ब्यालान्सिङ् किन महत्त्वपूर्ण छ
✓ SCALABILITY → distributes load across many servers → handle more traffic by adding servers
✓ AVAILABILITY → if a server fails, route to healthy ones → no single point of failure
✓ PERFORMANCE → prevents any server from being overloaded → consistent response times
✓ Enables ZERO-DOWNTIME deploys, maintenance (take servers out of rotation)
→ a foundation of scalable, highly-available systems.
