This article walks through the mathematics of Bloom filters, showing how to model false‑positive probability, derive optimal bit array size and hash‑function count, and apply the formulas to a 4‑million‑item dataset with concrete examples and performance tables.
The article presents a comprehensive overview of a billion‑scale high‑performance notification system, detailing its objectives, distributed architecture, big‑data processing, AI algorithms, cloud resource management, performance optimization, security measures, and future trends such as AI‑big‑data fusion, edge‑cloud collaboration, and quantum computing.
This article details Tongcheng Travel's migration from Hive/Kudu/Hudi to Paimon for lakehouse integration, highlighting a 30% resource reduction, three‑fold write speed gains, significant query acceleration via StarRocks, the end‑to‑end architecture across ODS‑DWD‑DWS‑ADS layers, and future roadmap plans.
This article explains how Tencent Cloud's TBDS platform evolves its architecture by adopting Apache Gravitino as a unified metadata lake, detailing the challenges of legacy versus new lakehouse designs, storage and compute separation, unified data access, permission management, and the resulting benefits for big‑data and AI workloads.
This guide explains how to optimize Paimon primary‑key and Append‑Scalable tables in Flink by adjusting sink and source parallelism, checkpoint intervals, making small‑file merges fully asynchronous, changing file formats, and applying ordering strategies to improve both write and read performance.
This article presents a comprehensive overview of JD Retail's data‑weaving approach to AB experiment automation, detailing the challenges of consistency, scientific rigor, and timeliness, the logical data platform architecture, key technologies, metric modeling, automated DAG orchestration, current progress, and future directions.
The article details ByteDance's use of Ray and RayData to construct scalable audio and video data processing pipelines for multimodal AI models, addressing challenges of massive data volume, resource constraints, and fault tolerance through pipeline design, RayCore enhancements, and custom scheduling optimizations.
The article outlines Didi’s end‑to‑end metric lifecycle—from background, requirements and current pain points to a multi‑stage solution that introduces a unified metric dictionary, management tool, logical modeling, and consumption layer—to achieve accurate, timely, consistent, and efficiently managed indicators across the data warehouse ecosystem.
Alibaba unveiled the open‑source Fluss project, a next‑generation real‑time stream storage built for Apache Flink that tackles traditional Kafka‑Flink limitations with millisecond‑level reads, columnar pruning, CDC support, and seamless Lakehouse integration, aiming to boost low‑latency analytics at scale.
This article explains Ozone's object storage architecture, its evolution of metadata management using distributed KV stores like Apache Cassandra, and the performance optimizations—read/write separation, unlimited scaling, and partitioning—that enable high‑throughput, low‑latency handling of massive datasets.
The Chinese national standard GB/T 44109‑2024, the Information Technology Big Data Data Governance Implementation Guide, will be enforced on December 1 2024, offering a comprehensive framework and practical methods to help industries plan, execute, evaluate, and improve data governance in big‑data environments.
The 8th Tongcheng Travel Big Data Technology Salon in Suzhou featured four expert talks covering Tencent Cloud’s Meson Spark engine, near‑line computing for travel itineraries, a Flink‑based real‑time risk control system, and Apache Paimon’s latest lake‑warehouse innovations, followed by a data‑driven business perspective session.
This tutorial teaches how to use Dask for handling large‑scale CSV data, covering data loading, exploration, cleaning, filtering, aggregation, visualization with pandas, and saving the processed results, all illustrated with complete Python code examples.
This article explores how modern data technologies—from relational databases and NoSQL to vector databases and AI‑driven retrieval—address the 4V challenges of volume, velocity, variety, and value, enabling polyglot persistence, semantic embeddings, and retrieval‑augmented generation for next‑generation applications.
This article presents Kuaishou's big‑data analytics system, describing its current capabilities, the pain points of traditional ETL workflows, the NoETL concept, the implementation of a metric‑center platform, and practical features such as custom fields, automated modeling and acceleration, followed by future plans and a Q&A session.
This article presents Tencent's real‑time lakehouse architecture, detailing its three‑layer design of compute, management and storage, and explains the six components of the Intelligent Optimization Service—including Compaction, Index, Clustering, and AutoEngine—along with scenario‑based capabilities, migration strategies, and future optimization directions.
This article explains Hadoop’s core concepts using a library analogy, details HDFS storage and MapReduce processing, provides complete Java implementations for a word‑count job with support for text, CSV, and JSON inputs, and discusses extensibility and performance optimizations such as combiners and custom partitioners.
This article explains the fundamentals of distributed systems, introduces Apache Kafka's architecture and components, discusses how Kafka ensures ordered message consumption, and provides Java consumer configuration tips to maintain message order, offering practical guidance for backend developers working with streaming data.
This article explores the challenges of data analysis and governance, introduces the concept of data weaving and its application in an indicator platform, details key technologies such as data virtualization, intelligent acceleration, and active metadata, and outlines current progress and future plans.
This article explains how enterprises transform raw data into valuable assets through four development stages, a triple‑entry accounting theory, and a detailed end‑to‑end process that covers data collection, resource building, product development, trading, evaluation, and financialization.
This article surveys the evolution of modern data technologies—from the 4V characteristics of big data and the limitations of traditional relational databases, through the rise of NoSQL and polyglot persistence, to embedding‑driven vector search, hybrid retrieval and RAG, illustrating how each paradigm frees applications from data constraints.
The article recounts how the author built a billion‑scale AI image‑asset library by replacing a week‑long import with a clustered‑table, sharded pipeline, MD5‑based unique keys, a custom DataWorks task scheduler, and multi‑engine query layers, sharing practical engineering practices learned through successive iterations.
This article analyzes the three core technologies behind PaaS for AI—GPU resource management, node data optimization, and task scheduling—detailing their concepts, component architecture, critical workflows, technical advantages, and future challenges, while illustrating practical configurations with Kubernetes and Volcano examples.
This article explains how Baidu’s TDE‑ClickHouse, as a core engine of the Turing 3.0 ecosystem, overcomes platform fragmentation, quality issues, and usability challenges through the OneData+ development paradigm, multi‑level aggregation, projection, query‑caching, bulk‑load ingestion, and a cloud‑native architecture to achieve sub‑second query response for massive data volumes.
Facing inconsistent metrics and low reuse in siloed data services, the team built a unified metric service using a headless BI semantic layer and virtual data models, enabling consistent metric definitions, reusable data models, AI-friendly queries, and faster, scalable reporting across the organization.
This article analyzes the evolution of data‑lake storage acceleration, compares traditional parallel file systems, object‑storage‑based solutions and modern cache‑enabled architectures, and explains how cloud‑native data lakes address scalability, cost, and performance challenges for AI and big‑data workloads.
This article explains how Adaptive Query Execution (AQE) in Apache Spark 4.0 dynamically optimizes query plans through features such as join reordering, partition pruning, skew handling and coalescing, delivering significant performance gains, resource efficiency and reduced manual tuning across real‑world big‑data workloads.
The article examines the evolution of data lake storage acceleration, compares various solutions, and explains how metadata, read/write, and end‑to‑end optimizations enable scalable, cost‑effective AI and big‑data workloads in cloud‑native environments.
This talk, the third in a Spark series, introduces the Spark SQL parsing layer, explains its architecture and integration with ANTLR4, details core implementation classes, and presents a real‑world optimization case that reduces code complexity and improves maintainability.
This article traces the evolution of Ctrip’s travel product log platform—from a single‑table DB approach to a platform‑wide ES + HBase solution—detailing the challenges of massive data volume, the architectural decisions, RowKey design, write and query flows, and the subsequent extensions that enabled billion‑scale log storage and fast retrieval.
Experts from Kuaishou, former Tencent, Ping An Insurance and others discuss data lake maturity, column‑level governance, resource management of unstructured data, and automated optimization techniques such as Iceberg small‑file merging, highlighting how these advances improve data quality and business decision‑making.
The article details Duodian DMALL’s migration from a traditional Hadoop stack to a cloud‑native Spark‑on‑Kubernetes architecture, explaining the motivations, design choices, component selections, operational challenges, and lessons learned through concrete examples and performance observations.
The Chinese government has issued a comprehensive ‘National Data Standard System Construction Guide’ that outlines a roadmap to build a unified data standards framework by 2026, detailing design principles, system architecture, core standard categories, and providing a downloadable full guide.
This article outlines Douyin Group's approach to handling petabyte‑scale data, addressing metric inconsistencies, and improving data product agility through a four‑layer Volcano Engine platform, systematic indicator production‑management‑consumption cycles, organizational design, automation, and future plans for large‑model‑driven metric splitting.
Baidu’s Canghai Storage unifies metadata, hierarchical namespace, and data layers into a Meta‑Aware, three‑generation architecture that scales to trillions of metadata items and zettabyte‑scale data, using a distributed transactional KV store, single‑machine‑distributed namespace, and online erasure‑coding micro‑services to deliver high performance, low cost, and seamless scalability.
In a panel discussion, experts from Kuaishou, Ping An, and Datastrato explain how data lake architectures, columnar storage formats like Apache Iceberg, and vector‑enabled lake formats are enhancing feature management, supporting generative AI workloads, and accelerating machine‑learning pipelines.
This article explains how Douyin Group tackles massive data volume, quality, and efficiency issues by building a four‑layer intelligent platform, standardizing metric management, automating metric decomposition, and creating reusable metric services that boost agility, stability, and cross‑team collaboration.
This article explains the fundamentals of data science, outlines its key components and processes, and details how JD.com leverages data science across e‑commerce, finance, healthcare, and logistics to improve efficiency, reduce costs, and enhance user experiences, while also discussing future trends such as quantum computing and digital twins.
This article outlines the motivations, objectives, and architectural design of a next‑generation data management platform, detailing its four‑layer “four‑ization” approach, core services such as data integration, modeling, API provisioning, componentization, as well as governance, security, and operational best practices.
Baidu’s Data Lake Storage Acceleration 2.0 replaces traditional HDFS with a scalable object‑storage foundation, introducing an adaptive hierarchical namespace, high‑throughput streaming engine, RapidFS caching, and fully compatible BOS‑HDFS APIs, thereby delivering up to 70 % higher throughput, lower costs, and seamless migration for big‑data and AI workloads.
This article explains how to generate Flink's StreamGraph, JobGraph, and ExecutionGraph using a low‑code canvas approach, detailing the underlying concepts, the transformation pipeline from DataStream to DAG, and providing Java code examples for building and assembling operators via drag‑and‑drop.
Data lakes have evolved from HDFS to object storage, addressing resource inefficiency, scalability limits, and operational burdens; Baidu’s Data Lake Storage Acceleration 2.0 introduces hierarchical Namespace 2.0, a streaming storage engine, RapidFS caching, and a fully HDFS‑compatible BOS‑HDFS layer to boost performance and support massive AI workloads.
This article reviews the evolution of data‑integration architectures toward EtLT, explains the core capabilities of Apache SeaTunnel, and details how a Chinese data‑platform vendor applied and extended SeaTunnel to simplify batch and streaming ingestion, unify multi‑engine processing, and reduce development and operational costs.
This article introduces Python's built‑in modules and popular libraries for parsing CSV, JSON, and XML files, demonstrates advanced data manipulation with pandas, and presents multiple strategies—including chunked reading, Dask, PySpark, HDF5, databases, Vaex, and NumPy memory‑mapping—for efficiently handling very large datasets.
The article outlines how to obtain the DataFun Summit e‑book by following the public account instructions and provides concise English summaries of twelve technical sessions covering data lineage, integration, AI language models, multimodal content, game AI agents, lake‑warehouse governance, big‑data architecture, and cluster management.
Bilibili transformed its search indexing pipeline by replacing a manual, low‑throughput process with a distributed KV store (Taishan) and Spark‑based construction, achieving unified data ingestion, reduced resource consumption, faster full‑ and incremental builds, and a shift from daily to hourly indexing cycles.
The article explains Paimon's changelog‑producer capability, detailing its purpose, storage format, and the four generation modes—None, Input, Lookup, and Full Compaction—while comparing their costs, implementation details, and suitability for different data sources such as CDC.
This article traces the evolution of data platforms, explains the rise of lakehouse architecture, and details how Alibaba Cloud's EMR Serverless Spark delivers one‑stop development, high performance, and full ecosystem compatibility, illustrated with real‑world case studies from Midea and Eagle Network.
Volcano Engine’s DataLeap platform offers a unified API service solution that transforms raw data into reliable, secure data services, featuring full lifecycle management, monitoring, permission control, rate limiting, and visual API orchestration to simplify complex data workflows and improve operational efficiency across big-data scenarios.
This article details JD's large‑scale HDFS unified storage implementation, covering cross‑region storage challenges, topology design, asynchronous block replication, flow‑control mechanisms, tiered storage strategies, automatic hot‑cold data migration, and the resulting performance and cost improvements for big‑data workloads.
This article explains the characteristics of Paimon primary key tables, covering bucket selection, cross‑partition update issues, recommended record‑level expiration settings, and two approaches to handle file compaction, including configuration tweaks and dedicated compaction tasks.
This article presents Kuaishou's metric middle platform, detailing its background, design principles, architecture, metric management, data modeling, unified analysis language OAX, federated query engine OCTO, acceleration strategies, and future directions, illustrating how it improves data quality, development efficiency, and analytical capabilities at scale.
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.
This article, based on Alibaba Cloud expert Li Lubing’s presentation, examines the rapid growth of China’s new energy vehicle market, outlines typical automotive big‑data architectures, compares Lambda and real‑time lakehouse solutions built with Flink and Apache Paimon, and showcases real‑world customer deployments.
Understanding what data metrics are, how to construct comprehensive indicator systems, and why they are essential for data‑driven decision‑making, operational efficiency, and unified statistical standards is crucial for businesses seeking to leverage big‑data technologies and improve strategic outcomes.
This article details Bilibili’s implementation of a large‑language‑model‑driven intelligent assistant for its massive big‑data platform, covering background, problem analysis, architectural design, knowledge‑base construction, precision and recall challenges, deployment across offline and real‑time Spark/Flink diagnostics, and future outlooks.
iQIYI’s Multi‑AZ unified scheduling architecture combines a unified storage layer (QBFS), an abstracted compute scheduler (QBCS), and a federated metadata service (Waggle Dance) to seamlessly route data and jobs across availability zones, cut storage costs up to 65 %, reduce overall big‑data workload expenses by more than 35 %, and lay the groundwork for future hybrid‑cloud expansion.
Baidu’s DATAPILOT platform combines natural‑language interaction with GPU‑accelerated Spark‑RAPIDS to turn complex, multi‑table SQL queries into seconds‑fast results, boosting ad‑revenue analysis efficiency by up to five‑fold while reducing infrastructure costs.
The article recounts Firefly Thinking's early BI system limitations, the decision‑making process that led to adopting Volcano Engine, subsequent operational strategies to unlock tool potential, and a forward‑looking vision of data analysis in the large‑model era.
This article presents a business-driven requirement to extract no more than 100,000 records from a pool of tens of millions, evaluates four technical solutions—including multithreaded ClickHouse pagination, Elasticsearch scroll‑scan, an ES‑HBase hybrid, and RediSearch + RedisJSON—provides implementation details, performance measurements, and practical recommendations for large‑scale data querying.
The article recaps the two‑day 24th GOPS Global Operations Conference in Shanghai, highlighting opening remarks, major speaker sessions on DevOps, BizDevOps, AIOps, large‑model applications, industry case studies, and provides links to presentation materials.
This article examines how data quality governance is applied in the financial sector, covering regulatory background, key challenges, management system design, practical methodologies, and evaluation standards to improve data assets and support digital transformation.
Taobao’s AI virtual‑try‑on system pre‑computes fitting results offline, writes them into the Item Center via scalable ScheduleX tasks, optimizes pagination, locking and flow‑control, and thereby processes millions of apparel items in under thirty minutes with 99.9% success and reliable checkpoint‑resume monitoring.
This guide analyzes common Spark Out‑Of‑Memory scenarios—such as massive data volumes, data skew, and improper resource allocation—and provides step‑by‑step configurations, memory‑management tweaks, partitioning strategies, and shuffle optimizations to prevent OOM failures in production.
This guide walks through the core concepts of Apache Hive, its architecture and key features, then shows how to integrate Hive with StarRocks via the Hive Catalog, construct ODS/DWD/DWS/ADS tables, enable DataCache, use materialized views, and handle automatic partition detection for fast lakehouse analytics.
The article describes how Kuaishou transformed its high‑traffic OLAP system from a separated lake‑and‑warehouse architecture using Hive/Hudi and ClickHouse into a unified lakehouse solution powered by Apache Doris, detailing the challenges, design choices, caching and automatic materialization mechanisms, and the resulting performance and governance improvements.
At the 2024 Baidu Cloud Summit, the speaker detailed recent breakthroughs across Baidu’s cloud‑native database suite—including PegaDB KV, GaiaDB relational, VDB vector, and the integrated DBSC, EDAP, and DBStack platforms—highlighting performance, cost, scalability, and AI‑ready features that address enterprise data challenges.
This article presents the China Information and Communications Research Institute’s research on the Enterprise Digital Intelligence Capability Maturity Model (EDMM), detailing the concepts of data, intelligent, and knowledge middle platforms, the model’s four‑layer framework, its development stages, value propositions, long‑term mechanisms, and upcoming work plans.
This article introduces Apache Paimon, an open‑source table format that supports batch and streaming reads and writes, explains its architecture, unified storage model, and core concepts such as file layout, snapshots, manifests, data files, partitions, and consistency guarantees.
This article introduces a cloud‑based feature production platform that simplifies feature engineering for recommendation, risk control and machine learning, explains its component‑based modeling framework, and answers common questions about deployment, performance, and customization, highlighting cross‑platform compatibility and optimization techniques.
This article presents JD Retail's data lake architecture overhaul, detailing the shortcomings of the Lambda model, the migration to Flink‑Hudi‑Spark pipelines, performance gains, storage savings, unified APIs, and upcoming improvements for resilience and automation.
This article explains the Spark SQL analysis layer, its core principles, how analysis rules such as ResolveRelations work, and the major pruning optimization introduced in Spark 3.2 that reduces unnecessary rule traversal, illustrated with concrete code examples and Q&A.
This guide explains why data analysis is essential, breaks it into three core stages—data collection, data mining, and data visualization—offers practical tool recommendations, and presents principles for efficient learning and skill development.
Since 2017, Guangdong Mobile has advanced its digital transformation by integrating data‑weaving technology with AI large models to overcome data silos, improve governance, and support a rapidly growing mix of structured and unstructured data across its enterprise, culminating in a virtual data‑center architecture that drives efficient data storage, processing, and business innovation.
This article presents a Python‑based project that continuously crawls Weibo hot‑search data, stores it with timestamps, and visualizes trends through dynamic bar, line, and word‑cloud charts using libraries such as BeautifulSoup, pandas, schedule, pyecharts, and jieba.
This article presents JD Retail's large‑scale HDFS deployment, detailing its unified storage architecture, cross‑region data replication challenges and solutions, tiered storage strategies for hot, warm and cold data, and the operational modules that together improve performance, reliability and cost efficiency in a big‑data environment.
Amid growing data demands, this article explains the data lake technology maturity curve, detailing lake‑warehouse architectural patterns, design principles, core functionalities, and the four leading open‑source solutions (Hudi, Iceberg, Delta Lake, Paimon) to guide enterprises in building flexible, scalable, and governed data platforms.
The article explains Apache Hudi’s three‑layer architecture and details four major 1.0 enhancements—LSM‑tree timeline, non‑blocking concurrency control, file‑group reader/writer APIs, and function indexes—while providing a brief review and links to the Hudi 1.x RFC.
The blog benchmarks Quickwit by indexing 61 billion GitHub event documents (23 TB) with 27 MB/s throughput, achieving sub‑second search latency using eight CPUs at $0.0002 per TB per query, while indexing costs about $2 per TB and storage costs $8.4 per TB per month.
This article introduces Apache Hudi Streamer, a versatile Spark‑based data ingestion tool likened to a Swiss Army knife, detailing its core options—including table configuration, continuous mode, source classes, transformers, table services, catalog synchronization, and advanced features—while guiding users on practical pipeline setup.
The article chronicles the author’s 30‑year programming career, detailing early experiences, the evolution from JavaScript projects to large‑scale big‑data architectures, cloud migration, business‑agnostic framework design, interactive analytics, and reflections on becoming an independent software architect.
This article explains the data lake technology maturity curve, covering lake‑warehouse architecture patterns, design principles, core capabilities of major open‑source lake engines (Hudi, Iceberg, Delta Lake, Paimon), and practical application scenarios for modern data‑driven enterprises.
This guide walks through the challenges of synchronizing massive datasets across heterogeneous databases, introduces Alibaba's open‑source DataX tool, explains its framework‑plugin architecture, and provides step‑by‑step instructions—including environment setup, installation, job configuration, and both full and incremental MySQL synchronization—complete with code examples and performance metrics.
At the 2024 Cloud Xi Conference, Alibaba Cloud unveiled a suite of vectorized big‑data solutions—including the Flash engine for Flink, EMR Serverless Spark with a 300% speed boost, upgraded lakehouse architecture, and real‑world case studies—showcasing massive performance gains, cost reductions, and broader serverless adoption.
The talk reviews the evolution of data technologies from early database storage to today’s generative AI-driven era, highlighting how massive data, multimodal processing, and advanced analytics are transforming data systems from cost‑centered infrastructures to value‑focused ecosystems that empower intelligent agents, open data ecosystems, and new application paradigms.
This article explains Apache Hudi's incremental processing capabilities, covering an overview of the medallion architecture, detailed configuration for incremental queries, the introduction of Change Data Capture (CDC) with required table properties, and a review of how these features enable richer data insights in modern data lake environments.
The Apache Paimon 0.9.0 release introduces production‑ready Branch support, native Iceberg compatibility, a caching catalog for faster OLAP queries, improved Bucketed Append tables with reduced small‑file issues, and full DELETE/UPDATE/MERGE‑INTO capabilities for Append tables, making the system more usable and efficient.
This article examines how large‑scale big‑data platforms can simplify AI application development, outlines the shift from model‑centric to data‑centric paradigms, and shares Alibaba Cloud’s practical experiences in building an integrated big‑data‑AI architecture, including MaxCompute, Hologres, MaxFrame, and vector search capabilities.
This article details Bilibili's transformation of its search offline indexing architecture—from a manual, low‑throughput MySQL‑centric process to a distributed, KV‑based, protobuf‑driven pipeline that leverages Taishan storage and Spark, cutting build cycles from days to hours while solving performance, consistency, and maintenance challenges.
This article explains the rapid growth of data-driven businesses, the challenges of traditional data warehouses, and how modern data lake technologies such as Delta Lake, Hudi, Iceberg, and Paimon form a maturity curve that guides enterprises in architecture choices, design principles, core capabilities, and practical applications.
This article examines the definition, policy background, and significance of data asset rights in China, outlining how clear ownership structures can incentivize data production, promote circulation, resolve data silos, and support the rapid growth of the digital economy.
This article describes the development trajectory of Ctrip's travel product log system, detailing its three major phases—from a single‑table DB approach to a platform‑based solution and finally an empowered version—while discussing technical challenges, design decisions, and the implementation of HBase, Elasticsearch, and related components to handle billions of log entries efficiently.
The article presents a collection of technical abstracts from the DataFun Summit, covering XiaoHongShu's REDgraph distributed graph database, DingoDB's multimodal vector database, Tencent's Tianqiong autonomous data platform, real‑time data warehouse architectures at Douyin and Ant Group, and Alibaba Cloud's serverless ClickHouse offering, all aimed at advancing large‑scale data processing and analytics.
This article compiles concise English summaries of several technical papers covering Xiaohongshu's REDgraph graph database, DingoDB vector database, Tianqiong autonomous data platform, Douyin's real‑time data warehouse, financial‑grade data warehousing, Alibaba Cloud ClickHouse Serverless offering, best practices in financial data governance, and 58.com user‑profile data warehouse construction.
The article presents a collection of technical overviews—including a graph database for distributed queries, a next‑generation vector database, real‑time data warehouse architectures at Douyin and Ant Group, a cloud‑native ClickHouse service, and best practices for financial data warehousing—while also explaining how to obtain the related e‑book.
This article details Ele.me's journey in evolving its real‑time data warehouse, covering the original 1.0 architecture, the 2.0 lakehouse redesign with Paimon and StarRocks, performance evaluations of lake formats and query engines, and the roadmap toward a 3.0 streaming lakehouse solution.
The article explains why banks need a scientific data indicator system, outlines steps to define business goals, construct comprehensive metrics, collect and process data, establish standards, build an analysis platform, and continuously refine the system to support data‑driven decisions.
The article presents a series of technical abstracts covering Xiaohongshu's distributed graph database, DingoDB's multimodal vector store, Tianqiong's autonomous data‑warehouse innovations, Douyin's storage‑based real‑time warehouse, financial‑grade real‑time warehousing, Alibaba Cloud ClickHouse Serverless, best practices in financial data governance, and 58.com’s user‑profile warehouse construction.
This article explains the technical principles and best practices of multi‑engine metric management based on Apache Calcite, covering common metric management methods, implementation details of unified SQL, virtual columns, and SQL defined functions, and outlines ByteDance’s future roadmap for extending these capabilities.
Amazon Web Services transferred its OpenSearch project—a fork of Elasticsearch and Kibana—to the newly formed OpenSearch Software Foundation under the Linux Foundation, gaining vendor‑neutral governance and support from members like AWS, Uber, Canonical, and Aiven, to foster broader community development of search, analytics, and vector database applications.
