System Internals

System design scenarios and deep-dive internals notes.

System Design

System Design

01·Highly Reliable Service 02·Unified Observability Platform 03·High-Volume Telemetry Ingestion Pipeline 04·Distributed Log Search Engine 05·Distributed Tracing System 06·Logs-to-Metrics Real-Time Alerting 07·Multi-Datacenter Routing & Failover 08·Scaling from 10× to 100× 09·Capacity Forecasting System 10·Petabyte-Scale Data Pipeline 11·Zero Data Loss During a Network Partition 12·Testability in Distributed Microservices 13·Zero-Downtime Deployment & Rollback 14·Consensus: Raft & Paxos

System Design Interview · Foundations

01·Rate Limiter 02·Consistent Hashing & Key-Value Store 03·Unique ID Generator 04·URL Shortener 05·Web Crawler

System Design Interview · Counting & Analytics

01·Count Unique Active Users 02·Trending Topics / Top-K 03·Ad Click / Impression Counter 04·Metrics / Time-Series Store 05·Logging / Analytics Pipeline

System Design Interview · Feeds, Messaging & Social

01·Notification System 02·News Feed System 03·Chat System 04·Social Graph 05·Live Comments / Presence

System Design Interview · Search, Geo & Logistics

01·Search Autocomplete 02·Proximity Service (Nearby Places) 03·Ride Matching (Dispatch) 04·Package / Delivery Tracking

System Design Interview · Media & Collaboration

01·Video Platform (YouTube) 02·Cloud Storage (Google Drive) 03·Collaborative Editing (Docs)

System Design Interview · Coordination, Money & Markets

01·Distributed Lock / Leader Election 02·Idempotency / Exactly-Once 03·Payment / Wallet System 04·Ad Auction / Real-Time Bidding 05·Ticket Booking (Inventory)

System Design Interview · Patterns

01·Common Patterns

Reference

System Internals Guides

01·Apache Cassandra 02·OpenObserve 03·MinIO 04·Redis 05·Apache Kafka 06·Apache Flink 07·ZooKeeper 08·NGINX 09·Elasticsearch 10·Apache Lucene