Cache Failure Modes: Stampede, Avalanche, and Penetration
The three ways caches fail when it matters: the cache stampede on an expired key, cache avalanche from…
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496 articles
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Kubernetes for Backend Engineers: Architecture, Scheduling, Autoscaling, and Failure Modes
Kubernetes for Backend Engineers covers scheduling, autoscaling, and failure modes. Learn how pods fail, how to set limits,…
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Distributed Caching: Architecture and Invalidation Across Nodes
Distributed caching beyond one node: consistent-hash routing, cache tiers, hot keys, cross-node invalidation, and the redis vs memcached…
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Caching in System Design: Patterns, Eviction, and Hit Ratio
Cache-aside vs read-through, write-through vs write-back, LRU eviction, and the hit-ratio math that decides whether a cache pays…
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L4 vs L7 Load Balancing: Where the Balancer Looks
L4 vs L7 load balancing compared: the layer 4 load balancer's connection-level speed, the layer 7 load balancer's…
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Automatically Change Android Wallpaper For Your Smartphone
My first preference is always Google products as their apps are well built by best developers. Though I am…
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Memory Leaks in Backend Services: Diagnosis, Tools, and Production Fixes
Memory Leaks in Backend Services grow RSS until the host kills the process. Learn how to find retained…
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Alternative smartphones to Samsung Galaxy Note 7
A few months ago Samsung Galaxy Note 7 was touted as the best android smartphone on the planet.…
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Long Polling vs Server-Sent Events: Choosing a Push Strategy
Long polling vs SSE compared: how server sent events work, where websockets fit, sse vs polling costs, and…
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Garbage Collection Tuning for Backend Engineers: Latency, Throughput, and Pauses
Garbage Collection Tuning cuts pause time without starving throughput. Learn which collector to pick, which knobs matter, and…
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WebSockets in System Design: When You Need a Persistent Connection
What are websockets: the websocket vs http comparison, the websocket connection lifecycle in six steps, and scaling websocket…
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Dependency Hell in Backend Systems: Version Conflicts, Lockfiles, and Upgrade Strategies
Dependency Hell in Backend Systems breaks builds when library versions clash. Learn lockfiles, upgrade paths, and how to…
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How Whatsapp earns without displaying ads
Whatsapp is currently the top messenger service which offers unlimited text messaging including photo, audio and video. You…
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Rate Limiting in System Design: Algorithms and Distributed Enforcement
The rate limiting algorithms that matter (token bucket, leaky bucket, sliding window) how distributed enforcement works across a…
