Design Twitter Feed System Design Interview

1. Problem Statement

2. Architecture Discussion Map

Use this as one discussion aid, not a single correct answer. Your design should follow from the requirements, scale, and trade-offs you establish.

graph LR
    A["Design Twitter Feed"]
    A --> F1["Fan-out Strategies Push vs Pull vs Hybrid Model"]
    A --> F2["Timeline Generation Pre-computed Feeds via Redis"]
    A --> F3["Search Infrastructure Inverted Index / Elasticsearch"]
    A --> F4["Media Storage & Delivery CDN Optimizations, Multipart Uploads"]
    A --> F5["Pagination Strategies Cursor-based vs Offset-based"]
    A --> F6["Audience and age-restriction enforcement"]

3. Key Focus Areas

• 1
  Fan-out Strategies (Push vs Pull vs Hybrid Model)
• 2
  Timeline Generation (Pre-computed Feeds via Redis)
• 3
  Search Infrastructure (Inverted Index / Elasticsearch)
• 4
  Media Storage & Delivery (CDN Optimizations, Multipart Uploads)
• 5
  Pagination Strategies (Cursor-based vs Offset-based)
• 6
  Audience and age-restriction enforcement