Author name: techinterview.org

⏱ 8 min read In a microservices architecture, maintaining data consistency across services is the hardest challenge. A single business operation (placing an order) […] Read article

⏱ 7 min read A centralized logging system collects, indexes, and makes searchable the logs from hundreds or thousands of microservices. Without it, debugging Read article

⏱ 7 min read Database connection pooling is a critical optimization for any application that uses a relational database. Without pooling, every database query Read article

⏱ 8 min read Search autocomplete (typeahead) suggests query completions as the user types, reducing keystrokes and guiding users toward popular or relevant searches. Read article

⏱ 7 min read Distributed file systems store files across multiple machines, providing storage capacity and throughput far beyond a single server. HDFS (Hadoop Read article

⏱ 7 min read An API gateway is the single entry point for all client requests in a microservices architecture. It handles cross-cutting concerns Read article

⏱ 7 min read Data warehouses are purpose-built for analytical queries — aggregations, joins, and scans across billions of rows that would bring an Read article

⏱ 8 min read Netflix serves over 200 million subscribers across 190 countries, streaming billions of hours of video per month. Designing a video Read article

⏱ 8 min read A distributed task scheduler executes jobs at specified times or intervals across a fleet of workers. It powers cron jobs, Read article

⏱ 7 min read The CAP theorem is the most cited theorem in distributed systems — and the most misunderstood. It states that a Read article