Low Level Design: Scoring Service
5 min read What Is a Scoring Service? A scoring service is the write-side component responsible for receiving raw score events, applying business […] Read article
System Design
System Design
Low Level Design: Config Management Service
4 min read What Is a Config Management Service? A Config Management Service (CMS) centralizes application configuration so that services can retrieve settings Read article
System Design
Low Level Design: Cross-Datacenter Sync Service
4 min read What Is a Cross-Datacenter Sync Service? A cross-datacenter sync service coordinates state between two or more physical data centers that Read article
System Design
Low Level Design: Global Database Design
5 min read What Is a Global Database Design? A globally distributed database serves reads and writes from multiple geographic regions while providing Read article
System Design
Low Level Design: File Upload Service
4 min read What Is a File Upload Service? A file upload service provides a reliable, scalable mechanism for clients to transfer files Read article
System Design
Low Level Design: Chunked Upload Service
5 min read What Is a Chunked Upload Service? A chunked upload service splits a large file into fixed-size pieces and transfers them Read article
System Design
Low Level Design: Resumable Upload Protocol
6 min read What Is a Resumable Upload Protocol? A resumable upload protocol allows an interrupted file transfer to continue from the exact Read article
System Design
Low Level Design: Do-Not-Disturb Service
5 min read What Is a Do-Not-Disturb Service? A Do-Not-Disturb (DND) Service suppresses or delays outbound notifications during time windows that a user Read article
System Design
Low Level Design: Digest Email Service
6 min read What Is a Digest Email Service? A Digest Email Service batches individual notification events that would otherwise generate separate emails Read article
System Design
Low Level Design: Geospatial Index Service
4 min read What Is a Geospatial Index Service? A Geospatial Index Service stores, indexes, and queries geographic coordinates at scale. It powers Read article
System Design
Low Level Design: Identity Service
4 min read What Is an Identity Service? An Identity Service handles authentication and authorization: it answers the questions “who are you?” (authn) Read article
System Design
Low Level Design: Distributed Lock Service
4 min read What Is a Distributed Lock Service? A distributed lock service allows multiple processes or nodes across a network to coordinate Read article
System Design
Low Level Design: Distributed Semaphore Service
5 min read What Is a Distributed Semaphore? A distributed semaphore limits the number of concurrent processes that can access a shared resource Read article
System Design
Low Level Design: Metrics Aggregation Service
4 min read What Is a Metrics Aggregation Service? A metrics aggregation service collects raw telemetry data (counters, gauges, histograms) emitted by application Read article
System Design
Low Level Design: On-Call Management Service
5 min read What Is an On-Call Management Service? An on-call management service determines which engineer is responsible for responding to an alert Read article