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Latest from Bilibili Tech

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Bilibili Tech

Nov 19, 2024 · Operations

Building a Lightweight Disaster‑Recovery Drill System at Bilibili: Architecture, Practices, and Lessons

Bilibili’s infrastructure team created a lightweight, multi‑layered disaster‑recovery drill platform—combining an atomic fault library, scenario catalogs, chaos‑experiment orchestration, real‑time observation, and a product‑level interface—backed by standardized governance and CI‑integrated automation, cutting drill preparation from weeks to days and boosting weekly resilience testing across the organization.

High Availabilitydisaster recoverysite reliability

0 likes · 39 min read

Building a Lightweight Disaster‑Recovery Drill System at Bilibili: Architecture, Practices, and Lessons

Bilibili Tech

Nov 19, 2024 · Backend Development

Evolution and Design of Bilibili Customer Service Seat Scheduling System

The article traces Bilibili’s customer‑service seat scheduling system from its initial balanced‑distribution algorithm and Redis‑based priority queues for live chat and ticket handling, through fairness‑focused saturation limits and virtual‑queue mechanisms, to planned dynamic tuning and expertise‑aware routing for future scalability.

Customer ServiceRedisload balancing

0 likes · 23 min read

Evolution and Design of Bilibili Customer Service Seat Scheduling System

Bilibili Tech

Nov 15, 2024 · Operations

B站直播团队S14赛事保障实践

The Bilibili live‑streaming team’s S14 tournament support showcases how systematic business‑scenario analysis, precise resource forecasting, accelerated fault‑drill and stress‑test workflows, and optimized tooling can deliver stable, low‑cost performance for massive, high‑concurrency events like the 2024 League of Legends World Championship.

InfrastructureTechnical Case StudyTraffic Management

0 likes · 13 min read

Bilibili Tech

Nov 12, 2024 · Big Data

Scalable Tag System Architecture and Optimization

The rebuilt tag system introduces a three‑layer architecture, standard pipelines, Iceberg‑backed storage and custom ClickHouse sharding, a DSL for crowd selection, and a stateless online service, achieving 99.9% success, sub‑5 ms latency, and supporting thousands of tags across dozens of business scenarios while planning real‑time processing and automated lifecycle management.

ClickHouseIcebergOnline Service

0 likes · 23 min read

Scalable Tag System Architecture and Optimization

Bilibili Tech

Nov 8, 2024 · Artificial Intelligence

AI-Powered Game Recognition for League of Legends Live Streaming on Bilibili

Bilibili’s AI‑driven game‑recognition system extracts real‑time LoL events through OCR, hero detection and hot‑spot tagging, generating high‑energy timestamps and interactive overlays that let viewers jump to key moments and view detailed statistics, enhancing spectator engagement and analytical capabilities across major esports tournaments.

AIComputer VisionGame Recognition

0 likes · 14 min read

AI-Powered Game Recognition for League of Legends Live Streaming on Bilibili

Bilibili Tech

Nov 5, 2024 · Artificial Intelligence

Bilibili's In-House Role-Playing Large Language Model: Architecture, Training Stages, Evaluation, and Demonstrations

Bilibili’s in‑house role‑playing large language model, built on the Index architecture and refined through pre‑training, supervised fine‑tuning, and preference optimization (PPO and DPO), achieved top scores on the Chinese CharacterEval benchmark, surpassing rivals while incorporating safety alignment and showcasing consistent, personality‑driven dialogue examples.

PretrainingSupervised Fine‑Tuningcontent safety

0 likes · 13 min read

Bilibili's In-House Role-Playing Large Language Model: Architecture, Training Stages, Evaluation, and Demonstrations

Bilibili Tech

Nov 1, 2024 · Big Data

Magnus: Intelligent Data Optimization Service for Iceberg Tables in Bilibili's Lakehouse Platform

Magnus is Bilibili’s self‑developed intelligent service that continuously optimizes Iceberg tables by scheduling snapshot expiration, orphan‑file cleanup, manifest rewriting, and multi‑dimensional data optimizations—including small‑file merging, sorting, distribution, and index creation—while automatically recommending configurations from real‑time query logs, delivering over 99.9% task success and up to 30% scan‑data reduction.

Data LakeIcebergIntelligent Recommendation

0 likes · 15 min read

Magnus: Intelligent Data Optimization Service for Iceberg Tables in Bilibili's Lakehouse Platform

Bilibili Tech

Oct 29, 2024 · Big Data

Bilibili One‑Stop Big Data Cluster Management Platform (BMR): Architecture, Modules, and Future Outlook

Bilibili's One‑Stop Big Data Cluster Management Platform (BMR) unifies cluster, metadata, intelligent operations, and custom managers to oversee 50+ services, 10,000 machines, exabyte storage, and millions of cores, using cloud‑native containers, fault prediction, and resource‑sharing techniques to boost efficiency, stability, and cost savings.

BMRDevOpsMetadata Warehouse

0 likes · 17 min read

Bilibili One‑Stop Big Data Cluster Management Platform (BMR): Architecture, Modules, and Future Outlook

Bilibili Tech

Oct 29, 2024 · Frontend Development

WebCodecs Solution Analysis

The article evaluates WebCodecs‑based video editing for browsers, comparing it to cloud and ffmpeg.wasm approaches, and concludes that its low cost and high extensibility outweigh limited ecosystem and compatibility, while outlining the required modules, OPFS storage, frame decoding, and spatial‑temporal manipulation techniques.

Web APIWebCodecsfrontend development

0 likes · 14 min read

Bilibili Tech

Oct 25, 2024 · Big Data

DataFunSummit2024: Next-Generation Data Architecture Technology Summit

DataFunSummit2024, co-hosted by Bilibili, convenes industry experts, scholars, and enterprise leaders across six forums to discuss next‑generation data architecture, showcasing Bilibili’s Iceberg‑based stream‑batch innovations, AI‑BI analytics, NoETL practices, and emerging alternatives to Lambda architecture.

AI+BIBig DataData Architecture

0 likes · 3 min read

DataFunSummit2024: Next-Generation Data Architecture Technology Summit