In an interview, Zhihu senior vice‑president Li Dahai explains how AI, big data and Tencent Cloud enable Zhihu’s knowledge‑matching algorithms, boost answer volume by 300%, and shape the platform’s vision of connecting expert users while emphasizing principles over pure algorithmic tricks.
The article outlines how to build a credit‑based content management platform by describing the evolution of security practices, defining user‑generated, professional‑generated, and occupational content models, proposing a credit‑audit workflow with risk assessment, and presenting AI‑driven text classification and anti‑cheat methods to balance traffic, quality, and trust.
A Chinese company, StarRing Technology, became the first ever to pass the notoriously difficult TPC‑DS benchmark, revealing the test’s history, methodology, and why this achievement marks a major milestone for database performance in the big‑data era.
This article explains Hadoop's distributed storage and processing framework, details the MapReduce programming model, describes the classic JobTracker/TaskTracker architecture, outlines the shuffle and combine phases, and introduces YARN as a scalable replacement with its ResourceManager, ApplicationMaster, and NodeManager components.
In a recent Cloud Xi conference, Hua Xiansheng, deputy director of Alibaba’s DAMO Academy Machine Intelligence Lab, presented the City Brain initiative, unveiling three AI-powered products—Tianyao, Tianying, and Tianji—that leverage massive video and sensor data to achieve real‑time perception, decision‑making, prediction, and intervention for smarter urban governance.
This article explains the evolution of Kafka message formats from version 0.7.x through 0.8.x (including 0.9.x) to 0.10.x, detailing each field, compression handling, and the design motivations behind the changes.
Suning’s executive vice president outlines how digital empowerment—through AI, cloud computing, and big‑data analytics—creates a new smart‑retail ecosystem, emphasizing user‑centric services, data‑driven operations, and technology platforms that blend efficiency with a human touch.
This article details Chain Home's OLAP platform architecture and Kylin usage, covering the evolution from early ROLAP to MOLAP multi-dimensional engine, Kylin's basic principles, platform structure, application scenarios, usage specifications, capability extensions, and middleware development.
Baidu’s TSDB processes over 20 million data points per second per node and tens of thousands of queries per second cluster‑wide by employing a stateless read/write‑separated elastic architecture, multi‑layer storage across Redis, HBase and Hadoop, minute‑level geo‑redundant self‑healing, and a modified Gorilla compression that cuts storage by 80% with minimal CPU overhead.
The 2018 Gdevops Global Agile Operations Summit in Chengdu gathered industry experts who shared practical insights on AIOps implementation, sharding database ecosystems, DevOps adoption in traditional enterprises, large‑scale data management, ElasticSearch clustering, AWS blue‑green deployments, cloud database operations, Alibaba's double‑11 ops platform, 58 delivery mini‑program architecture, and scalable game service design.
This guide details the required system environment, download sources, and step‑by‑step offline file preparation for installing Cloudera's CDH 5.14 on a CentOS 6.7 server, including JDK, parcels, and MySQL connector setup.
This article outlines Suning's evolution from a basic network operations unit to a sophisticated, multi‑layered security architecture that integrates organizational structure, protection platforms, risk management, big‑data threat perception, and continuous improvement to safeguard e‑commerce operations.
This article explains how cloud computing, big data, and artificial intelligence are interrelated, describing the evolution from physical resource management to virtualized, elastic services, the roles of IaaS, PaaS, and SaaS, and how each technology benefits the others in modern applications.
This article explains how Elasticsearch and the ELK stack address challenges of storing, securing, retrieving, and analyzing massive data volumes by providing distributed real‑time search, log collection, visualization, and even serving as a NoSQL alternative for large‑scale applications.
The article explains the concept of distributed architecture, its key characteristics such as cohesion and transparency, showcases how MySQL and middleware like Mycat are used in e‑commerce platforms, and outlines the evolution, practical implementations, and challenges of building scalable distributed database systems.
Huawei’s HCDA‑BigData V1.0 certification, launched in April 2018, offers engineer‑level credentials, comprehensive training materials, a four‑day hands‑on program, and a Prometric exam to equip developers, partners, students, and ICT professionals with advanced big‑data development skills on FusionInsight.
The article presents Meituan's Traffic Compass—a data‑warehouse‑driven traffic analysis platform for the hotel‑travel business—detailing its background, challenges, architectural layers, dimensional modeling, Kylin‑based query engine, configuration mechanisms, performance metrics, and future optimization plans.
This article examines Spark's unified memory manager in version 2.2.1, detailing on‑heap and off‑heap memory regions, the four on‑heap memory pools, dynamic execution‑storage memory sharing, task memory accounting, and provides concrete calculation examples to explain UI discrepancies and runtime memory limits.
This article details Meituan's DataMan platform, describing the background of data quality challenges, the eight-step PDCA-driven solution, architectural design, technical stack, monitoring standards, and the resulting improvements in data governance and operational efficiency across their massive data warehouse ecosystem.
Milano, a distributed log collection and analysis platform built on the ELK stack, leverages Filebeat, Kafka, Logstash, Elasticsearch, and Kibana to provide high‑throughput, low‑latency, secure, and visual log management for massive clusters, addressing the challenges of traditional manual log inspection.
This article explains Hadoop’s core components, the MapReduce programming model, the detailed shuffle and merge processes, and how YARN replaces the classic JobTracker/TaskTracker design to improve scalability and resource utilization in large‑scale data processing clusters.
The article details Alipay’s comprehensive architecture for the Double 11 shopping festival, covering its three‑layer IAAS/PAAS/SAAS model, logical data‑center design, multi‑active disaster‑recovery, blue‑green deployment, distributed data sharding, transaction processing, and the Ant Credit Pay service’s performance and risk‑control mechanisms.
This guide introduces the most commonly used HBase operational tools—including Canary, hbck, HFile viewer, CopyTable, Export/Import, ImportTsv, CompleteBulkload, RowCounter, CellCounter, and clean utilities—explaining their purposes, typical use‑cases, and exact command syntax for effective cluster administration.
This article explains the origins and goals of cloud computing, how virtualization adds flexibility in time and space, the evolution from physical servers to public and private clouds, the role of IaaS, PaaS, and SaaS, and how big data and artificial intelligence intertwine with cloud services to enable modern intelligent applications.
The paper describes a high‑performance user‑behavior analysis system that processes hundreds of billions of daily logs for Meituan‑Dianping, using an inverted‑index structure with bitmap UUID sets and timestamp sequences, combined with Spark, Spring and Alluxio optimizations to cut query times from hours to under five seconds.
This article walks through a gray‑scale, controlled upgrade of Hive from version 0.13 to 2.1, covering metadata schema analysis, syntax compatibility, new Hive‑2.1 features, UDF adjustments, performance tweaks, and a step‑by‑step procedure to ensure stability and zero service interruption.
The March 2018 DBAplus Newsletter compiles the latest releases across RDBMS, NoSQL, NewSQL, time‑series and big‑data ecosystems, highlighting new features, performance improvements, compatibility updates and key technical links for Oracle, MySQL, MariaDB, SQL Server, DB2, PostgreSQL, TiDB, CockroachDB, InfluxDB, Hadoop and several Chinese‑made databases.
This article chronicles a game company's operations team evolution over seven years, detailing how it grew from a tiny manual crew to a large, automated, cloud‑native organization that built its own CDN, monitoring, and platform solutions while tackling scaling, reliability, and service‑orientation challenges.
This article presents a comprehensive attributes matrix and data‑flow model overview for major Apache streaming platforms, comparing versions, sponsors, event handling, fault tolerance, processing order, latency, resource management, APIs, and supported connectors to aid practical technology selection.
This article details Lianjia's journey of designing and implementing a low‑latency, stable real‑time computing platform using Spark Streaming on YARN, covering technical selection, architecture components, version compatibility challenges, exactly‑once semantics, graceful shutdown, Kafka tuning, and future enhancements.
The article presents a comprehensive solution for reducing Hadoop cluster storage consumption by applying ZFS‑based transparent compression and data‑governance techniques, detailing the technical background, design choices, implementation steps, performance optimizations, and observed storage savings.
Suning’s real‑time log analysis system integrates Flume, Kafka, Storm and Spark Streaming to collect, cleanse, and compute metrics like NDCG, ensuring low latency, high throughput, exact‑once processing, and robust data safety while supporting multi‑dimensional analytics on massive online‑offline traffic.
Apache Spark 2.3 introduces major upgrades such as millisecond‑latency continuous streaming, stream‑to‑stream joins, a native Kubernetes scheduler backend, accelerated Pandas UDFs, and several MLlib improvements, all aimed at making big‑data processing faster, easier, and smarter.
The article describes the evolution of Ctrip's wireless APM platform from the early UBT-based monitoring to a globally‑oriented, metric‑rich system that processes over 100 billion data points daily using Storm and Elasticsearch, detailing its design, key performance dimensions, data‑volume trade‑offs, and implementation choices.
The article outlines a systematic approach for large‑scale Hadoop clusters to monitor daily data growth, identify abnormal paths, manage rapid expansion, clean unused cold data, and implement capacity forecasts, while providing concrete daily and quarterly actions, Hive‑specific strategies, and practical examples to keep storage under control.
The article examines China’s push for big data sharing, highlighting Representative Zhang Jindong’s calls for a national open data platform, integration of AI and blockchain, and urgent legislation to address data fragmentation, security risks, and the need to empower SMEs against data monopolies.
The article explores how the integration of cloud computing, big data, and artificial intelligence is reshaping enterprise data platforms, outlining a multi‑stage evolution from data unification to ecosystem building and forecasting the strategic importance of data in future business transformation.
The article explains how Ctrip's big‑data platform introduced Alluxio to isolate real‑time Spark Streaming jobs from HDFS NameNode maintenance, reduce NameNode pressure, improve Spark SQL performance, and provide a unified storage layer across multiple HDFS clusters.
This article introduces Hulu's in‑house OLAP engine Nesto, detailing its near‑real‑time data ingestion, nested data model, TB‑level storage using HBase and Parquet, MPP query execution, custom predicate library, and the overall architecture that enables sub‑second ad‑hoc queries for user analytics.
CallGraph is JD.com's internally developed distributed tracing and service governance platform that addresses the challenges of monitoring complex microservice architectures by providing low‑intrusion, low‑latency tracing, real‑time analytics, configurable sampling, and integration with JMQ, Storm, Spark, HBase, and JimDB for both operational insight and performance optimization.
This article explains how real-time streaming has evolved from batch Hadoop systems through Lambda architecture to modern Kappa-style pipelines, highlighting its growing importance for developers, enterprises, and the integration of streaming with microservices, AI, and cloud-native technologies.
This article reviews recent progress in Bayesian machine learning, covering foundational theory, non‑parametric approaches such as Dirichlet and Indian buffet processes, regularized Bayesian inference, and scalable techniques for big‑data environments including stochastic variational methods, distributed algorithms, and hardware acceleration.
This article details JD's evolution from rule‑based recommendations to a multi‑screen, AI‑driven personalization platform, describing its system architecture, data pipelines, feature services, and key technologies that enable real‑time, user‑centric product suggestions across the e‑commerce ecosystem.
This article details the design, challenges, and implementation of Meituan’s Flow Compass—a data‑driven product that combines user, scene, and traffic source dimensions using a Kylin‑based warehouse to enable rapid, flexible traffic‑source analysis for hotel‑travel growth.
This article explains the core of search engine technology by describing what an inverted index is, how it is built using single‑pass memory and multi‑way merge methods, how indexes can be partitioned and incrementally updated, and how Hadoop can be used for large‑scale indexing.
iQIYI’s big‑data collection system has progressed from simple HTTP log uploads to a Flume‑Kafka pipeline and finally to a custom Venus‑Agent architecture with centralized configuration, persistent offsets, dual‑Kafka streams and Flink processing, now handling tens of millions of queries per second and over three hundred billion records daily to power its AI‑driven services.
Meituan designed a Storm‑based real‑time data processing platform that guarantees at‑least‑once delivery and high availability, employs a custom spout, regression‑driven traffic smoothing, and a low‑latency KV store with atomic operations, persisting results in Kafka, MySQL and Cellar to power merchant dashboards and heat‑tag analytics, while planning broader real‑time analytics expansion.
A 2017 analysis of China’s high‑end internet talent market reveals that cloud computing, big data and gaming lead salary rankings, while company financing stage, job role demand, city location and candidate age all shape hiring trends and compensation levels.
This article introduces Apache Solr and Elasticsearch, explains their shared Lucene foundation, compares their scalability, deployment ease, and key features, and highlights why Elasticsearch is often considered more efficient for large‑scale, multi‑tenant search applications.
The case study details Donghua Software’s smart flood‑control and drainage solution, which integrates IoT sensors, NB‑IoT/eLTE networks, Huawei’s FusionSphere cloud platform, big‑data analytics, and GIS to provide real‑time monitoring, predictive warnings, automated gate control, and efficient emergency dispatch for urban water management.
This article shares a comprehensive overview of game operation security at Tencent, covering personal background, real‑world incident cases, the inherent challenges of large‑scale game services, past monitoring efforts, and a new data‑driven alerting framework that dramatically reduces false alarms while protecting game economies.
This article walks through constructing a Spark-powered text sentiment analysis pipeline—from crawling movie reviews, preprocessing and feature extraction with jieba and TF‑IDF, to training Naive Bayes and SVM classifiers—while discussing Spark's advantages and ways to improve model accuracy.
This article surveys the technical architectures of major web platforms—including Wikipedia, Facebook, Yahoo! Mail, Twitter, Google App Engine, Amazon, and Youku—highlighting their design patterns, scaling techniques, storage solutions, and caching strategies to reveal how massive online services are built and operated.
The article presents Zhang Qi's insights on end‑to‑end quality assurance for JD's POP platform and 7FRESH stores, covering pre‑, during‑, and post‑release testing measures, big‑data‑driven automation, tester roles, team growth strategies, and knowledge‑sharing initiatives.
Analyzing 2017’s big data boom, the article explores how the 4V characteristics—volume, variety, velocity, and value—spurred innovations like distributed storage, NoSQL, real‑time stream processing, and AI integration, and predicts future hotspots such as SQL resurgence, cloud‑based platforms, and AI‑driven analytics.
Attending VLDB 2017 in Munich, the report summarizes the conference’s broad coverage of database research—from new hardware‑accelerated prototypes and Spark‑based big‑data processing to Oracle and SAP HANA case studies, keynotes, notable papers, and reflections on industry trends and Chinese contributions.
This article summarizes Wu Xiaoguang's talk at Gdevops 2017, detailing how Vipshop integrates data processing, analysis, and mining technologies—such as Flume, Kafka, Spark, and custom scheduling—to improve operational decision‑making, performance monitoring, root‑cause analysis, and predictive modeling across its e‑commerce platform.
This article introduces the concept, characteristics, and use cases of time series databases, explains the data model and challenges of traditional solutions, and provides a detailed overview of Tencent's Cloud Time Series Database (CTSDB) along with performance comparisons against InfluxDB.
In this lecture, Prof. Pei Dan of Tsinghua University outlines the evolution of intelligent operations from rule‑based automation to machine‑learning‑driven AIOps, discusses data, feedback loops, and practical challenges, and calls for stronger collaboration between industry and academia to accelerate research and deployment.
Meituan built a scalable scenario‑query platform that unifies traffic, activity and investment data by layering RPC services, a Storm‑driven pre‑computation tree stored in Redis/Tair, and a middle‑platform API with circuit‑breaker logic, cutting response times from seconds to under one second while dramatically reducing code coupling and simplifying future feature development.
This article explores how distributed systems determine node liveness, manage failover and recovery, and implement at‑most‑once, at‑least‑once, and exactly‑once processing guarantees—including opaque transactions and two‑phase commit—using examples from Kafka, Zookeeper, and big‑data pipelines.
This article explains how the open‑source DBus platform, combined with the Wormhole streaming engine, captures raw application logs, lets users configure visual rule operators, and transforms the unstructured message part into schema‑driven, Kafka‑ready data for downstream analytics.
This article presents a comprehensive case study of how WeChat Pay rebuilt its transaction record storage system to handle massive data volumes, improve performance, ensure data completeness, support flexible queries, and strengthen security through distributed key‑value storage, data partitioning, and operational safeguards.
This article shares a data engineer's three‑year experience using Apache Kylin for real‑time OLAP on petabyte‑scale data, describing the business background, challenges of pre‑computation, cube modeling, dimension reduction, and various optimization techniques such as hierarchy, mandatory, and joint dimensions, as well as precise count‑distinct handling.
This article explains Meitu's development of a distributed bitmap system that leverages the speed and storage efficiency of bitmap structures to handle massive user data, detailing its evolution, architectural choices, implementation practices, and lessons learned to inspire similar big‑data solutions.
This article introduces Meitu’s self‑developed log collection system Arachnia, explaining why a custom solution was needed for massive server‑side user‑behavior logs, the key requirements such as reliability and real‑time throughput, and the core architectural mechanisms that address those challenges.
At Meitu’s seventh Internet Technology Salon in Xiamen, over a hundred experts discussed recommendation algorithms and big‑data solutions, with talks on the Arachnia log‑collection system, the Naix distributed bitmap service, Meitu’s personalized recommendation pipeline challenges, and novel data‑missing‑theory models for improved performance.
The Suning Cloud Commerce Data‑Driven Forum gathered top experts from Intel, Mobike, Google, and others to share deep insights on big data, AI, and data‑driven retail, offering practical case studies, emerging technologies, and strategic perspectives for the industry’s digital transformation.
This report presents a systematic performance evaluation of Apache Flink and Apache Storm across multiple real‑time processing scenarios, measuring throughput, latency, message‑delivery semantics, and state‑backend effects, and provides recommendations for selecting the most suitable engine based on the observed results.
The article details WMDA, a no‑code and manual‑code data collection platform for PC, mobile and app that supports real‑time and offline user behavior analysis, describing its functional model, behavior taxonomy, five‑layer architecture, tracking techniques, circle‑selection, data services, streaming and batch processing pipelines, and related technologies such as Storm, Spark, Druid and Roaring Bitmap.
The article describes Alibaba's end‑to‑end automated fault recovery system for its massive network, covering extensive data collection, Spark‑based event processing, flexible alerting with Siddhi, alert convergence using PageRank, and scripted recovery actions to achieve high availability during the Double Eleven traffic surge.
In 2017 Vipshop’s senior big‑data architect shares how the company grew its Hadoop‑based platform from zero to a thousand‑node cluster, detailing cluster health monitoring, multi‑HDFS deployment via Hive, Yarn container allocation improvements, and a hook‑driven Capping resource‑control system to boost stability and efficiency.
This article explains Qunar's transition from MySQL, Redis, and HBase to TiDB, detailing the background of distributed databases, TiDB's architecture, hardware selection, deployment automation, monitoring setup, and real‑world usage scenarios to address scalability and high‑availability challenges.
The 2017 12th China Intelligent Transportation Conference highlighted system thinking, AI, and innovation as key drivers for smarter city traffic, outlining a three‑step top‑level design, AI‑powered applications, and intersection innovations that together promise safer, more efficient, and fully automated urban mobility.
The article examines how emerging AI and big‑data technologies are reshaping insurance by enabling differentiated pricing, automating claims and customer service, strengthening fraud detection, and improving personalized product recommendation and operational efficiency across the sector.
This article introduces the challenges of multi-dimensional monitoring, explains the limitations of traditional alerting, and presents the MDRCA algorithm—combining K‑means clustering, Explanatory Power, and Surprise metrics—to pinpoint root causes efficiently, while sharing practical AI integration experiences for large‑scale monitoring platforms.
This article walks through implementing a basic big‑data search system in Python, covering Bloom filter basics, tokenization of text, inverted index construction, and how to combine these techniques to support fast AND/OR queries.
The Metric Logic Tree automates business metric anomaly analysis by integrating heterogeneous data sources (Kylin, MySQL, Elasticsearch, Druid) with a three‑layer architecture—metric calculation, algorithmic analysis (waterfall and Gini‑coefficient methods), and a master‑worker computation service—that parallelizes queries, delivers immediate conclusions, and shortens decision cycles, as demonstrated in Meituan‑Dianping’s hotel‑travel operations.
The article provides a comprehensive overview of KDD 2017, including acceptance statistics, best paper awards, Ant Group's contributions, detailed discussions on AB testing, graph mining, and selected research papers across data mining, machine learning, and anomaly detection, offering valuable insights for practitioners and researchers.
Facebook’s journey from early startup ops to supporting over 2 billion monthly users reveals how disaggregated network, storage, and warm‑storage‑enabled Spark architectures overcome scalability bottlenecks, illustrating the operational strategies and design principles that power massive, reliable data‑center services.
This article reviews six popular data collection platforms—Apache Flume, Fluentd, Logstash, Chukwa, Scribe, and Splunk Forwarder—explaining their architectures, strengths, and typical use cases within modern big‑data pipelines.
iQIYI’s live‑stream risk‑control platform combines the real‑time interception engine Pluto with the big‑data analytics system Mars to curb black‑market registration fraud and red‑packet abuse, processing over a billion daily requests through adaptive filters, Kafka‑Spark pipelines, and clustering algorithms that now limit fake popularity to 10‑30 % and red‑packet capture to under 3 %.
Alibaba’s Double 11 showcase reveals how its upgraded stream computing platform handled a 100% year‑over‑year data surge, achieving 256 K successful payments per second and processing 472 million events per second in real time through a highly optimized Flink‑based architecture.
ZEUS, Suning’s decision analysis platform, integrates monitoring data from tools like Baymax and HIRO, applies CEP aggregation and Drools rule evaluation, and leverages big‑data storage and machine‑learning models to automatically identify root causes, provide real‑time alerts, and enable self‑healing in large‑scale distributed systems.
This guide walks you through upgrading Transwarp Data Hub Community Edition—covering application market checks, version selection, upgrade modes, required scripts, configuration parameters, pre‑upgrade checks, execution commands, and rollback procedures—to ensure a smooth, automated upgrade with minimal downtime.
The article explains how AIOps—an AI‑powered IT operations platform that combines big‑data analytics, machine learning, and automation—revolutionizes traditional IT Ops by enabling rapid, accurate incident detection, root‑cause analysis, and self‑healing, thereby freeing CIOs to focus on strategic business value.
This article explains how Tencent's ZhiYun full‑link log monitoring platform handles massive daily logs, overcomes challenges of diverse log formats, high throughput, fault‑tolerant design, and provides scalable storage, query, and alerting capabilities for distributed micro‑service environments.
This article examines Suning's evolution of its membership platform—from an early offline POS system to a vertically split, cloud‑native architecture—detailing capacity planning, performance testing, data migration with Spark, multi‑active deployment, and future plans for cross‑region high availability.
This article explains the design and implementation of a unified seller‑operation logging platform that uses Kafka for ingestion, Storm for real‑time processing, Elasticsearch for hot‑data search, and HBase for cold‑data storage, detailing the challenges faced and the optimizations applied.
This article explores Ctrip’s continuously evolving architecture, detailing its three-layer composition of operations, frameworks, and applications, and examines real-world case studies of its release system, configuration management, SOA, and a massive User Profile big‑data project, highlighting key innovations and lessons learned.
China’s Data Center Alliance released its fifth big‑data product evaluation, testing 17 solutions from 16 vendors across SQL, NoSQL, and machine‑learning workloads, with Tencent Cloud’s platform achieving top rankings in NoSQL tests and highlighting the nation’s push toward standardized, high‑performance big‑data infrastructure.
Alibaba’s senior data expert Yao Bin Hui explains how the company constructed a standardized, end-to-end big-data ecosystem—from low-level data collection and AI algorithms to data services and product platforms—enabling petabyte-scale integration and second-level response times that power both internal operations and millions of external users.
This article walks through the design, deployment, and code implementation of a real‑time spam detection pipeline using Apache Storm, comparing it with Hadoop, detailing cluster setup, topology components, data flow, and how to package and run the solution on a distributed Storm cluster.
Didi launches Gaia Data Open Plan and Smart Signal Challenge to share anonymized trajectory and OD data, provide computing resources and funding, and invite researchers and algorithm enthusiasts to develop AI-driven traffic signal optimization, fostering academic collaboration and smart city mobility solutions.
A senior Alibaba engineer reflects on three years of building a large‑scale data platform, tackling distributed rate‑limiting challenges, leading cross‑regional projects, and pursuing AI research, while sharing personal insights on career growth, technical problem‑solving, and the value of continuous learning.
The article reflects on the evolution from traditional to AI‑enhanced devices, recounts recent AI‑focused conferences, and argues that integrating AI and big data as a fourth dimension of 5G is essential for industry digital transformation and future network competitiveness.
The article introduces data-ci, a SQL‑driven unit testing framework that lets engineers write, organize, and automate data validation tests for ETL pipelines, providing assertions, failure callbacks, coverage reporting, and CI integration to improve data quality and reliability.
This guide walks through preparing three CentOS 6.9 nodes, configuring hostnames, time sync, password‑less SSH, disabling IPv6, installing JDK, downloading CDH 5.4, setting up core‑site and hdfs‑site XML files, formatting the NameNode, starting HDFS services, configuring YARN and MapReduce, and verifying the installations via the Web UI.
The article details Suning’s Biu unmanned store concept, describing its AI‑driven facial recognition, cloud POS, open‑space design, big‑data‑guided shelf management and the design challenges of creating a seamless, phone‑free shopping experience that blends physical and digital realms.
This article details Bilibili's Billions log platform—from its fragmented origins and design goals to the elastic‑stack‑based architecture, shard management, log sampling, custom Go splitters, and monitoring enhancements—highlighting the challenges faced and the roadmap for future improvements.
