Chapter 28: Content Ingestion, Search & Storage Engines

Content-oriented systems coordinate discovery, indexing, event transport, and durable bytes across independent failure domains. This chapter follows the data from a source URL or upload through a distributed index, queue, or object store, making freshness, ordering, durability, and repair explicit.

• 28.1 System Design: Web Crawler at Scale (Robots.txt Parsing, Politeness Policy, URL Frontier, Deduplication)
• 28.2 System Design: Distributed Search Engine & Google PageRank (Inverted Index Sharding, Web Indexer, Link Graph Analysis)
• 28.3 System Design: Distributed Message Queue (Kafka-Like Log-Centric Engine, Partitioning, Replication, Consumer Groups)
• 28.4 System Design: Distributed S3-Like Object Storage (Metadata Cluster, Chunk Servers, Erasure Coding, Multipart Uploads)
• Chapter 28 References