The article explains how Kuaishou partnered with Apache Hudi to overhaul its ODS‑based data lake, addressing latency, storage cost, and complexity for AI and BI workloads, detailing the evolution from mysql‑to‑hive to mysql‑to‑hudi 1.0 and 2.0, the resulting performance gains, cost savings, and future roadmap.
A live discussion dissected the shift from single‑point Copilot assistants to platform‑level Agentic data platforms, exposing hard architectural, security, knowledge‑base, evaluation, stability‑cost, and governance challenges while debating whether the future will favor a super‑agent or a multi‑agent ecosystem.
A 90‑minute live discussion with data experts from vivo and YangQianGuan reveals that moving from a simple Copilot assistant to a platform‑level Agentic data system requires fundamental architectural changes, new infrastructure for memory, planning, tool orchestration, security guardrails, knowledge management, robust evaluation, and a clear ROI strategy.
The 2026 China University Computer Competition – Big Data Challenge reveals the Monthly Star award winners, each receiving 800 RMB, and presents detailed experience reports from the top teams covering feature engineering, model selection, training validation, and ensemble strategies for stock prediction.
The article outlines the evolution of big data in banking, compares management models for heterogeneous data, describes the shift from data engineering to knowledge engineering, introduces LLMOps for high‑quality knowledge bases, and details how integrating AI and data can enable a “one‑sentence bank” that answers queries and executes tasks.
Xiaohongshu transformed its data platform from a simple ClickHouse‑based ad‑hoc analysis to a Lambda‑style architecture and finally to a lakehouse built on Iceberg, StarRocks, Flink and Spark, cutting architecture complexity, resource and development costs by two‑thirds while supporting trillions of daily events with sub‑second query latency.
The article explains how Alibaba Cloud's MaxCompute has been transformed into a cloud‑native Data+AI platform, detailing its layered architecture, multimodal storage, model management, hybrid compute scheduling, SQL AI functions, the MaxFrame Python framework, and several enterprise case studies that demonstrate performance gains and flexible resource orchestration.
The article details Xiaohongshu's four‑stage data‑platform evolution—from a simple ClickHouse ad‑hoc setup to a Lambda‑based 2.0 design and finally a lakehouse‑driven 3.0 architecture—highlighting the adoption of general incremental compute, cost‑reduction to one‑third, performance gains of up to ten‑fold, and the SPOT standards that guide the new system.
Xiaohongshu transformed its data platform from a simple ClickHouse‑based analytics stack to a unified lakehouse with generic incremental compute, cutting architecture complexity, resource cost, and development effort by roughly one‑third while supporting petabyte‑scale, sub‑second queries across its 350 million‑user app.
A recent Taiwan government warning against Amap turned into a viral boost, exposing the app’s superior traffic‑light countdown, massive data‑driven network effects, and the underlying reverse‑propagation model that explains why the ban accelerated downloads rather than suppressing them.
The DACon conference in Shanghai gathered over 8,000 developers and experts, showcasing 50 talks that explored self‑evolving AI agents, the open‑source GenericAgent framework, data‑governance ontology, Agent‑Ready big‑data infrastructure, and AI+AR ecosystems, while highlighting practical case studies and future industry directions.
Tencent Games’ data governance team details an AI‑driven, end‑to‑end semantic framework that shifts traditional rule‑based data management to a service‑oriented model, cutting storage waste by 30 %, halving development time, and boosting asset recommendation accuracy to 95 % across its global gaming platform.
The article analyzes how Tencent Cloud's TBDS platform tackles the AI era's multimodal data lake challenges through a native storage format (Lance), elastic Ray‑based compute, standardized metadata with Gravitino, and automated governance via Lakekeeper, citing architecture details, performance numbers, and real‑world deployments.
This talk details how Tencent Games leverages AI to transform its data governance from rule‑based, passive processes into a semantic, service‑oriented paradigm, addressing resource waste, low collaboration efficiency, and scalability challenges while delivering measurable improvements in cost, speed, and asset quality.
Ahead of the May Day holiday, many users reported errors and failed bookings on third‑party ticket services such as Ctrip, Didi and Tongcheng, after 12306’s new big‑data‑driven risk‑control system introduced a “slow‑queue” mechanism that blocked millions of suspicious transactions.
This article details Xiaohongshu's journey from a ClickHouse‑based batch analytics stack to a unified lakehouse architecture powered by generic incremental computing, showing how the company reduced architecture complexity, resource consumption and development effort each to roughly one‑third while supporting trillions of daily events with sub‑10‑second query latency.
The article analyzes how leading internet companies embed AI agents across the entire data‑warehouse lifecycle to automate governance, presenting real‑world case studies from Alibaba, ByteDance, JD.com and Tencent, and quantifies benefits such as over 65% reduction in manual effort, 50% drop in metric duplication, and a 40% boost in resource utilization.
The whitepaper analyzes the data‑driven transformation of the new‑energy battery sector, outlines four core challenges—massive data streams, fast‑changing R&D demands, long manufacturing cycles, and multi‑dimensional quality standards—and demonstrates how SelectDB’s unified lake‑warehouse architecture delivers million‑level throughput, second‑level latency, up to 30× query speedup, and 60% cost reduction across real‑world case studies.
OPPO’s data‑lake team, led by David, detailed their transition from Hive‑Spark to a unified multi‑modal lake, leveraging Gravitino for cross‑engine metadata management and the open‑source Curvine cache to eliminate data silos, boost I/O performance, and support massive image, recommendation, and AI‑Agent workloads.
The article examines how large‑language‑model AI can automate data‑warehouse modeling tasks—generating SQL, designing schemas, handling ETL, and tracing lineage—while highlighting current pain points, practical limitations, and four emerging trends that will reshape the role of data engineers over the next few years.
When attribution analysis on over 900 million rows slowed to more than 40 seconds and threatened cluster stability, Ctrip's smart attribution team rebuilt the architecture with Ray and DuckDB, achieving sub‑15‑second query times, 160 % performance gain, and complete resource isolation.
This article details Xiaohongshu's data platform evolution from a simple ClickHouse‑based ad‑hoc system to a Lambda‑style architecture and finally a lakehouse solution, highlighting how the adoption of a new incremental computing model reduced architectural complexity, resource consumption and development effort each to roughly one‑third while delivering sub‑second query performance on petabyte‑scale data.
The article analyzes costly data‑platform failures—such as a $40 million payroll system in San Francisco schools and a collapsed Healthcare.gov launch—identifies the root cause as ineffective data middle platforms, and demonstrates how Palantir’s ontology‑based three‑layer architecture (semantic, dynamics, decision) can turn data into actionable insights, delivering triple‑digit ROI for enterprises like BP, Novartis, and General Mills.
This article examines three common misconceptions in enterprise intelligent data analysis, explains how a semantic metric layer can break data silos, and details Aloudata Agent’s dual‑path engine, multi‑agent collaboration, and product design that together deliver trustworthy, deep, and democratized analytics for modern businesses.
This article analyzes Xiaohongshu's data platform evolution—from a simple ClickHouse‑based analytics layer to a Lambda architecture and finally a lakehouse design—highlighting how adopting a new incremental computing model reduced architecture complexity, resource consumption, and development effort each to roughly one‑third while delivering sub‑second query performance on petabyte‑scale data.
The article analyzes why data development engineers are becoming more valuable in the AI era, outlining four core reasons—including data‑driven AI limits, the rise of RAG architectures, heightened data compliance, and a talent shortage—while offering concrete advice on mastering real‑time pipelines, unstructured data, and AI infrastructure.
This article details the design and implementation of a cloud‑native, real‑time monitoring system for Alibaba Cloud OpenAPI, covering background challenges, a Flink‑SLS architecture, multi‑region data processing, checkpoint and state‑backend tuning, source‑side predicate pushdown, visualization with Grafana, and production results.
In the 2026 spring hiring season, many big‑data job seekers see their resumes disappear because they still focus on offline batch processing, while employers now demand real‑time streaming, AI‑driven data pipelines, and cloud‑native deployment skills such as Flink, vector databases, and Kubernetes.
This article compiles a comprehensive set of data‑warehouse interview questions—including self‑introduction prompts, SQL and window‑function challenges, data‑skew solutions, architecture design, file‑format trade‑offs, governance, and team‑leadership topics—to help candidates prepare for first, second, and third‑round interviews at leading tech firms.
This case study details how Vivo’s marketing automation platform evolved its data‑driven architecture—from a Presto‑based wide‑table design, through a Bitmap optimization, to a StarRocks migration—addressing performance bottlenecks, reducing resource costs, and enhancing data security.
This article analyzes how large‑language models for code, exemplified by Claude Code, are integrated into an e‑commerce data‑warehouse ecosystem, defining data‑rights boundaries, introducing agentic workflows, decoupling cognitive and execution runtimes, and establishing standardized I/O contracts to achieve safe, scalable AI‑assisted development and governance.
In the era of AI and multi‑cloud, this article analyzes the core challenges of data governance—data silos, quality gaps, and compliance risks—and explains how Apache Gravitino’s unified metadata architecture together with OpenLineage’s standardized lineage model provide a scalable, automated solution for intelligent, real‑time data management.
The article outlines DataWorks' evolution from a decade‑long big‑data governance platform to an AI‑driven Copilot and autonomous Agent system, detailing its technical foundations, tool‑adaptation layer, context engineering, security safeguards, and future vision of a professional, open, and intelligent big‑data development ecosystem.
This article outlines MaxCompute's 15‑year transformation from a traditional structured‑compute engine to an AI‑native data warehouse, detailing its data, heterogeneous compute, and model capabilities, showcasing three core ability pillars, real‑world case studies, and future development directions.
This article explains Spark Structured Streaming’s new Real-Time Mode introduced in Spark 4.1, detailing how it reduces latency to the millisecond level by redesigning micro‑batch processing, concurrent stage scheduling, streaming shuffle, and checkpointing, and compares it with Flink’s native streaming.
This roundup compiles the latest releases across major data platforms—including ClickHouse, Apache Fluss, Delta Lake, StarRocks, Apache Pulsar and DolphinScheduler—highlighting version numbers, key feature additions, security fixes, and emerging trends shaping the big‑data ecosystem.
This article presents a series of seven technical case studies—including Tencent Cloud’s Iceberg‑based batch‑stream integration, AI‑driven data governance with Apache Gravitino, Xiaohongshu’s lakehouse evolution, and a multimodal data‑lake solution—detailing challenges, architectural designs, implementation steps, performance results, and future directions.
This article provides a comprehensive guide to Spark UI, explaining each primary and secondary tab, the key metrics they expose, and how to interpret them for performance bottleneck detection, followed by two detailed case studies and practical tuning recommendations for Spark workloads.
This article explains Ray Data’s execution pipeline, detailing the LogicalOptimizer’s architecture, core abstractions, rule‑based optimization process, and both logical and physical rule sets, with concrete code examples and practical illustrations of each optimization technique.
This article details Ant Group’s Flex vectorized engine built on Velox, covering the current state of vectorization, Flex’s architecture (Flink + Velox), core feature development, correctness guarantees, large‑scale deployment results, and future directions for full‑link vectorization and broader hardware support.
This article explains how to design and implement a robust monitoring solution for big‑data components running on Kubernetes using Prometheus, covering metric exposure methods, scrape configurations, alerting architecture, custom exporters, and practical deployment tips.
The article explains how Kuaishou modernized its data lake by partnering with Apache Hudi to address latency, storage cost, and consistency issues in both AI and BI pipelines, detailing architectural changes, new ingestion tools, partitioning strategies, compaction mechanisms, performance gains and future plans.
This article explains Apache Flink’s stream processing fundamentals, introduces the open‑source Flink Agents framework for building event‑driven AI agents, details Alibaba Cloud’s Flink AI Function for real‑time LLM inference, and showcases demos, architecture, integration patterns, and practical use cases such as VOC analysis, live‑stream analytics, and intelligent operations.
During Double‑11 mega‑sales, Taobao Group faced exploding OLAP query traffic, costly data sync pipelines, and slow near‑real‑time analytics, so they unified real‑time and batch data in Paimon, leveraged StarRocks for high‑performance lake queries, tuned cluster settings, and saved nearly ten‑million yuan annually while cutting refresh latency by 80%.
This article details how Alibaba Cloud EMR Serverless Spark combined with the Paimon lakehouse framework enables Taobao Flash Sale’s retail data team to achieve low‑latency, high‑throughput real‑time analytics, batch processing, and feature generation, outlining architecture evolution, performance gains, and practical Spark tuning techniques.
This article details the evolution of a data warehouse at RenliJia from a MaxCompute‑centric setup to a modern lakehouse using StarRocks, Paimon, Flink, and Fluss, describing design goals, technical evaluations, implementation steps for offline, OLAP, and real‑time workloads, and the challenges and future plans that emerged.
This article analyzes the architecture, sync modes, latency, scalability, usability, and deployment aspects of four popular data synchronization solutions—Sqoop, DataX, Flink CDC, and Airbyte—and provides a practical decision tree to avoid common misuse pitfalls in enterprise data pipelines.
This guide walks you through designing and deploying a highly available HDFS architecture with dual NameNodes, ZooKeeper‑based failover, and a tuned YARN resource scheduler, covering detailed configuration files, failover testing, performance tuning, monitoring, automated health checks, capacity planning, and best‑practice checklists for production‑grade big‑data platforms.
Uber tackled the challenge of replicating over 350 PB of data across on‑premise and cloud lakes by redesigning Hadoop Distcp, moving intensive tasks to the Application Master, parallelising copy‑listing and commit phases, and leveraging Uber‑mapper jobs to dramatically cut latency and improve resource efficiency.
This article recounts a Tsinghua University PhD student's journey through a multidisciplinary big‑data training program, detailing the acquisition of AI and data‑science skills, the creation of novel algorithms like MicroFlowSAM and ImageRAG, and their successful application to chemical engineering research and industry projects.
This article presents a concise overview of ten popular open‑source data visualization tools—including Echarts, D3.js, Grafana, Plotly, Redash, Metabase, Superset, Kibana, AntV, and Pyecharts—highlighting their main features, typical use cases, and visual examples to help readers choose the right solution for their needs.
This guide explains how to reliably export over a billion Elasticsearch documents within a few hours by using Point‑In‑Time (PIT) snapshots combined with parallel Slice processing, covering diagnostics, performance modeling, consistency levels, failure recovery, and resource isolation.
This article explains how Taotian Group unified real‑time and offline data using Paimon as lake storage and StarRocks for high‑performance OLAP, eliminating costly sync pipelines, cutting refresh time by about 80%, saving nearly ten million yuan annually, and detailing the architecture, cluster safeguards, configuration tweaks, monitoring, and future roadmap for large‑scale promotional events.
This article examines the shortcomings of traditional big‑data engines for AI workloads, presents a Ray‑based heterogeneous fusion architecture that unifies CPU/GPU scheduling, Python ecosystems, and streaming‑batch processing, and details fault‑tolerance, checkpointing, compute‑storage separation, resource‑utilization, scalability, and observability improvements that enable thousands of nodes and dramatically higher GPU efficiency.
This article explains Kafka's high‑availability architecture, covering multi‑replica replication, leader‑follower election and failover, the role of In‑Sync Replicas, and producer acknowledgment settings with min.insync.replicas for reliable, zero‑data‑loss streaming.
In the era of rapidly advancing large‑model technology, the article outlines the challenges of evaluating data‑centric LLM agents, proposes a three‑layer evaluation framework covering basic capabilities, component‑level checks, and end‑to‑end business impact, and shares practical innovations such as semantic‑equivalence SQL matching, agent‑as‑judge pipelines, and a unified assessment platform.
The article outlines the evolution from traditional OLAP to an AI‑first Lakehouse, detailing unified multimodal storage, CPU/GPU heterogeneous scheduling, native vector search, in‑database AI inference, agent‑centric execution, and self‑evolving platform capabilities that together reshape modern data analytics.
This article examines Apache Paimon’s innovative lakehouse architecture, detailing its LSM‑Tree storage, flexible merge engine, and multi‑engine integration, and showcases two real‑world deployments—an operator’s real‑time fraud‑prevention system and a manufacturing firm’s unified data platform—highlighting performance gains and cost reductions.
This article details Xunlei's migration from a fixed Hadoop cluster to Alibaba Cloud EMR Serverless Spark, outlining the platform's background, pain points, technical upgrade goals, serverless capabilities, archive data access methods, Kyuubi integration, and the resulting business and technical benefits.
The article details JD’s data lake architecture, its 500 PB scale, self‑developed Hudi extensions—including LSM‑Tree‑based MoR tables, custom indexing, IO optimizations, Flink stream scheduling, and NativeIO SDK—along with benchmarks, community contributions, and future roadmap for real‑time big‑data processing.
This guide walks you through setting up a secure, elastic, and high‑performance AI data processing platform on Alibaba Cloud by combining DataWorks, MaxCompute, and MaxFrame, covering the four essential steps, code examples, best‑practice tips, and common troubleshooting advice.
This guide presents a comprehensive big‑data development roadmap, detailing industry opportunities, a six‑module technology stack, four progressive learning stages, hands‑on project ideas, interview question strategies, common pitfalls, and curated resources, helping aspiring engineers become proficient and interview‑ready while avoiding common mistakes.
This guide outlines a concise, 1.5‑2‑minute self‑introduction for data engineering interviews, highlighting essential personal details, technical stack, project achievements, business impact, and common pitfalls to avoid, with a concrete example and actionable tips.
This guide walks you through designing and implementing a complete e‑commerce data‑warehouse project—from raw data ingestion and ODS/DWD/DWS/ADS layers to optional real‑time analytics—while highlighting interview‑ready resume tips, common pitfalls, and performance‑tuning tricks.
This article explains the challenges of frequent column changes in AI feature engineering, introduces Paimon’s column‑separation storage with a global continuous Row ID, details its Blob data type for efficient multi‑modal handling, and outlines production results and future roadmap for building an AI‑native data lakehouse.
The article walks through the evolution of data management—from idealistic visions and messy “shit mountains” to the realities of data lakes, metadata layers, governance challenges, trust breakdowns, and finally the promise of DataOps as a hopeful path forward.
This talk explains how a data platform tackled massive, heterogeneous enterprise data by using large language models and prompt engineering to automatically extract field‑level lineage from SQL scripts, achieve over 80% coverage, and raise accuracy above 95%, dramatically cutting impact‑analysis time.
This article explains Apache Hudi’s core concepts, including its timeline architecture, file layout, indexing mechanisms, and the two primary table types—Copy on Write and Merge on Read—along with their trade‑offs and the various query modes such as snapshot, time‑travel, and incremental queries.
This article explains Apache Hudi’s core architecture, detailing the timeline mechanism, file layout, indexing strategies, the two main table types (Copy‑On‑Write and Merge‑On‑Read), and various query modes such as snapshot, time‑travel, read‑optimized and incremental queries.
This technical report details how Vivo’s big‑data platform adopted Celeborn as its remote shuffle service, evaluated alternatives, tuned hardware and software configurations, implemented performance and stability enhancements, and outlines future operational and community‑driven improvements for handling petabyte‑scale shuffle workloads.
The 2025 release of Apache Spark 4.0 brings a comprehensive overhaul—including default ANSI SQL mode, full SQL scripting support, a new Real‑Time streaming mode, adaptive query execution, dynamic memory management, and GPU‑accelerated MLlib—significantly boosting performance, reliability, and developer productivity across big‑data workloads.
Ceph is an open‑source distributed storage platform offering object, block, and file services with high availability, scalability, and self‑management; the guide explains its core components, CRUSH algorithm, storage interfaces, deployment steps using ceph‑deploy, operational monitoring, performance tuning, and common use cases in cloud and big‑data environments.
In the era of digital transformation, chaotic data warehouse naming wastes resources, while a well‑defined naming convention improves maintainability, collaboration, and business value, as demonstrated by real‑world cases showing three‑fold query speed gains and up to 60% reduction in cross‑team effort.
The article explains how Apache Parquet’s columnar layout, multi‑level row‑group structure, projection and predicate push‑down, and advanced compression and encoding make it the high‑performance, space‑efficient storage format that powers modern big‑data ecosystems and tools like Spark, Python pandas, and ClickHouse.
This article examines several engineering solutions for extracting up to 100,000 records from a ten‑million‑row pool, comparing multi‑threaded ClickHouse pagination, Elasticsearch scroll‑scan, an ES‑plus‑HBase hybrid, and RediSearch + RedisJSON, and presents performance measurements and practical trade‑offs.
The JD‑hosted Apache Hudi Meetup showcased the 1.1 release’s pluggable table format, Flink performance gains, LSM‑Tree MoR redesign, and AI‑native features such as vector indexing, illustrating how the open‑source lakehouse is evolving to meet BI and multimodal AI workloads.
The 2025 Apache Paimon release brings major performance boosts, AI‑centric multimodal storage, deeper streaming‑batch integration, and broader engine compatibility, detailing query and write optimizations, memory management tweaks, and a unified lake format for structured and unstructured data.
This article details BMW's digital transformation journey using Sensors Data, covering the background of rapid app growth, the cross‑regional data collection challenges, the systematic solution architecture—including mapping, preprocessing, and historical data migration—and the resulting business impact and future AI‑driven roadmap.
Ctrip migrated its massive User Behavior Tracking system from ClickHouse to a compute‑storage separated StarRocks cluster on Kubernetes, achieving millisecond‑level query latency, halving storage usage, reducing node count, and sustaining millions‑of‑rows‑per‑second write throughput while simplifying scaling and operations.
This article compiles a comprehensive set of Kafka interview questions covering basic concepts, advanced mechanisms, and expert-level topics to help candidates prepare effectively for technical interviews.
This article series explores Tencent Cloud's Iceberg‑based batch‑stream integration, Apache Gravitino's unified metadata and lineage solution, Xiaohongshu's data‑architecture evolution for the Big AI Data era, and a practical Data+AI multimodal data‑lake implementation, highlighting challenges, architectural designs, and performance gains.
This article examines the challenges of traditional banking data, explains how large language models can fuse structured and unstructured information, outlines a new data‑centric infrastructure and governance approach, and describes the DiFY platform’s AI‑agent and DataOps capabilities for agile, non‑intrusive integration with core banking systems.
This guide explains how to use Alibaba's open‑source DataX tool to synchronize large MySQL datasets, covering the tool’s architecture, installation on Linux, job configuration with JSON, full‑load and incremental sync examples, and performance results, all without relying on mysqldump or manual storage methods.
This article explains why data migration is the essential first step for cloud modernization, outlines the technical challenges of moving terabytes to petabytes, compares physical and logical migration methods, and presents practical solutions and real‑world case studies across Hive, cloud warehouses, lake‑house formats and analytic databases.
This article chronicles a ten‑year evolution of a self‑built big data platform—detailing early Hadoop clusters, successive migrations to Spark, Hive, Hudi, and StarRocks, the operational challenges encountered, and the comprehensive shift to Alibaba Cloud EMR Serverless that delivered significant cost, performance, and stability gains while outlining future intelligent‑ecosystem plans.
This article details how GoTerra migrated from BigQuery to MaxCompute and used Resource Advisor, tiered quota strategies, and the TopN Fair scheduler to dynamically balance performance and cost across dozens of accounts and hundreds of quota groups, achieving up to 60% cost reduction.
Apache Kyuubi, an enterprise‑grade multi‑tenant data gateway, replaces Livy and Flink SQL Gateway to support multiple engine versions, cross‑cluster elastic scheduling, high‑availability batch jobs, and traffic control, dramatically reducing deployment complexity, improving resource utilization, and accelerating release cycles for large‑scale Spark and Flink workloads.
This article explains how Xiaohongshu, a lifestyle community with over 350 million monthly users, transformed its data platform from a traditional Lambda architecture to a next‑generation incremental computing model, reducing architectural complexity, resource consumption and development effort each by roughly two‑thirds while supporting massive real‑time and offline data demands.
This article introduces DMS Airflow, an enterprise‑level data workflow orchestration platform built on Apache Airflow, covering its advanced DAG capabilities, deep DMS integration, scheduling, task dependency management, dynamic task generation, resource scaling, security features, and practical code examples for SQL, Spark, DTS, and Notebook tasks.
This comprehensive guide walks you through expanding or shrinking a production‑grade Kafka cluster—covering prerequisites, anti‑pattern warnings, environment matrices, step‑by‑step expansion and contraction procedures, partition rebalancing principles, monitoring, best practices, and troubleshooting—to ensure zero data loss during scaling.
This article explains why Kuaishou e‑commerce needed a metric system, outlines its business context, describes the challenges faced by data product managers, engineers, and operators, and shares the practical steps and management practices used to construct and maintain the system.
This article explains how small‑file issues in Paimon's streaming data lake architecture degrade system stability and query speed, and presents practical parameter‑tuning, table‑level settings, asynchronous compaction, and monitoring techniques to mitigate those problems.
The article examines Kuaishou’s e‑commerce data metric system, detailing why a metric framework is essential, how it was built, the product practice, management methods, and the challenges faced by data product managers, engineers, and operators across production, querying, and usage stages.
This article explores Kuaishou e‑commerce's journey in constructing a comprehensive data metric system, detailing its business context, the necessity of metrics, challenges faced by data product managers and engineers, practical implementation steps, management practices, and a concluding Q&A.
Facing PB‑scale user behavior data and millions of feature dimensions, the platform transformed its search, advertising, and recommendation pipelines by adopting a distributed, configurable‑service architecture that delivers high‑throughput streaming, elastic storage, rapid feature iteration, and robust fault‑tolerance for AI‑driven personalization.
Huolala, founded in 2013, runs a massive cross‑cloud hybrid big‑data storage platform of over 40 PB across 3,000+ machines, evolving through four online‑storage phases, robust HA design, performance‑cost optimizations, AI vector storage, and a cost‑governance system that saved more than half of its storage expenses.
The article explores how Volcano Engine’s multimodal data lake architecture addresses the storage, compute, and management challenges of AI agents by introducing new formats like Lance, upgrading engines such as Spark and Daft, and providing unified tools for processing, versioning, and querying massive multimodal datasets.
This article walks through the end‑to‑end design of a leaderboard that must serve over 100 million users with 100 k queries per second, covering requirement clarification, real‑time and accuracy challenges, technology selection such as Redis ZSet, multi‑layer architecture, sharding, caching, monitoring, and practical implementation tips to achieve low latency, high consistency, and cost‑effective scalability.
This article introduces Douyin Group’s Data Asset Management Platform, explaining its shift from traditional metadata to a comprehensive data‑asset approach, detailing the platform’s capabilities, and focusing on the evolution and application of full‑link data lineage across four key topics to improve visibility, quality, security, and cost efficiency.
Netflix processes over 5 PB of logs daily, handling millions of events per second, and by layering hot and cold storage, using a custom lexer for fingerprinting, native protocol serialization, and sharded tag maps, they reduced query latency from seconds to sub‑second levels with ClickHouse.
