This article explains Spark's unified memory manager, detailing on‑heap and off‑heap memory regions, dynamic memory sharing, task memory allocation, and practical tuning techniques to optimize performance and avoid common out‑of‑memory errors.
This article explores the rapid growth of the Internet of Things, outlines the key drivers behind its expansion, highlights major challenges such as chip shortages and bandwidth limits, and presents ten emerging trends—including AI integration, 5G, edge computing, and security—that will shape multiple sectors in the coming years.
This article examines the challenges of traditional Spark clusters and explains how integrating Spark with cloud‑native platforms—through Kubernetes deployment modes, EMR on ACK practices, Remote Shuffle Service, and serverless Spark on DLF—provides elastic scaling, lower operational costs, and advanced features such as executor rolling and custom scheduler support.
This article explains how Ozone, the Hadoop community’s new distributed object‑storage system, overcomes HDFS’s small‑file limitations with a hierarchical Volume‑Bucket‑Object model, detailing its architecture, components, data flow for creating and reading objects, and the benefits of its scalable, fault‑tolerant design.
This article presents an in‑depth overview of Apache Iceberg as used at Tencent, covering its table format architecture, Spark read/write mechanisms, production challenges and optimizations such as schema evolution, file filtering, upsert strategies, and the surrounding data‑governance services.
This article explains DataOps as a methodology for improving data analysis quality and efficiency, outlines its origins, standards, and maturity model, and presents practical insights and case studies from Chinese enterprises on how DataOps addresses common data engineering challenges and drives digital transformation.
Amid the explosive growth of big data, this article explains why systematic data governance—covering metadata, quality, lifecycle, and security—is essential for turning raw data into measurable business assets, reducing costs, and enhancing operational efficiency.
This article outlines practical Spark job optimization techniques—from code-level improvements and resource tuning to data skew handling, persistence strategies, shuffle reduction, broadcast variables, Kryo serialization, and efficient data structures—demonstrating how each can dramatically cut execution time.
This article introduces Elasticsearch, Logstash, Kibana, and Kafka, explains their roles in data collection, analysis, and visualization, and provides a complete Docker‑Compose configuration to deploy these components together for scalable log processing and search solutions.
This article provides an in‑depth technical analysis of Kafka’s storage architecture, covering its design goals, storage mechanisms, log segment layout, sparse indexing, log cleanup policies, and the performance techniques such as sequential writes, page cache, and zero‑copy that enable high‑throughput streaming.
This article explains how metadata serves as the foundation of enterprise data governance, outlines common data governance challenges, describes Wing Payment's metadata governance framework and platform architecture, and presents future directions such as multi‑source management, cross‑cluster disaster recovery, and intelligent recommendation.
This article presents the background, challenges, architectural design, technical solutions, and future roadmap of Meituan's Database Autonomy Service (DAS), a platform that leverages big‑data collection, AI‑assisted root‑cause analysis, and automated operations to improve database performance, reliability, and self‑service capabilities.
This article details Kuaishou's end‑to‑end big data platform, describing its organizational model, unified data governance framework, comprehensive data‑quality solution, the design of a headless metric platform, key technologies such as automatic modeling and code generation, and future directions toward a decentralized, smart data fabric.
This article explains what a data warehouse is, why modeling it matters, and compares four major modeling approaches—ER, dimensional, Data Vault, and Anchor—detailing their structures, steps, advantages, and typical use cases, while also offering guidance on selecting tools and designing models.
This article examines the data challenges faced by intelligent operations (AIOps), evaluates IoTDB against other time‑series databases through performance benchmarks, outlines Cloudwise's architecture and open‑source contributions, and presents real‑world case studies demonstrating anomaly detection and root‑cause analysis in industrial settings.
This article explains the causes of Spark data skew, how to locate skewed tasks using the Web UI, and presents six optimization methods—including increasing shuffle parallelism, filtering abnormal keys, two‑stage aggregation, map‑join, key sampling, and random‑prefix joins—plus a real‑world case study.
This article compares Elasticsearch and ClickHouse for log analytics, presents cost‑benefit calculations, and provides a step‑by‑step deployment guide for Zookeeper, Kafka, Filebeat, and ClickHouse to build a scalable, low‑cost data analysis platform for SaaS services.
This article explains the motivation for an SQL parser in big‑data ecosystems, describes lexical, syntactic and semantic analysis, compares ANTLR and Apache Calcite as parser solutions, and provides complete code examples and deployment steps for building a functional SQL parsing engine.
The article details Tencent Music's data governance journey, describing the background of rapid resource growth, challenges in cost management, a multi‑layered governance methodology—including metadata, tiered storage, and a Lego metadata platform—and the resulting improvements in resource utilization and data quality.
This article explains the background, architecture, challenges, and step‑by‑step design of a big‑data‑driven risk control experiment platform used for online and offline strategy testing in internet finance.
This article describes how Meituan’s data platform tackles the growing challenges of a 15,000‑plus‑node Kafka deployment by detailing current bottlenecks, latency‑reduction techniques across application and system layers, large‑scale cluster management strategies, and future directions for robustness and cloud‑native migration.
This article provides a comprehensive overview of Hadoop, covering its historical development, key characteristics, the HDFS storage framework, the MapReduce processing engine, YARN resource manager, and a wide range of real-world application scenarios, as well as the broader Hadoop ecosystem and its major components.
This article details Xiaohongshu's data platform architecture and three real‑time lake initiatives—log ingestion, CDC ingestion, and lake analysis—showcasing how Apache Iceberg, Flink, and custom shuffling algorithms solve small‑file and cross‑cloud challenges while enabling schema evolution and future multi‑cloud optimizations.
Bilibili adopted the open‑source Kyuubi proxy to replace its unstable STS layer, enabling multi‑tenant, multi‑engine (Spark, Presto, Flink) SQL/Scala processing with Hive Thrift compatibility, fine‑grained queue isolation, UI monitoring, stability safeguards, and Kubernetes/YARN deployment, while planning further cloud‑native extensions.
Hulu’s data platform team describes how they migrated large‑scale Spark workloads from Yarn to native Spark on Kubernetes, leveraging AWS services such as EKS, S3, and custom operators to achieve dynamic scaling, unified monitoring, cost‑effective resource management, and improved stability for search, recommendation, and advertising pipelines.
This article outlines Kuaishou's evolution of metadata management from its early Hive‑centric stage to a unified 2.0 platform, detailing system architecture, key technologies, challenges, and future 3.0 vision for low‑code, automated, and intelligent data governance.
The article examines why Hadoop's Distributed File System may become obsolete by detailing its three main shortcomings—deployment complexity, metadata memory limits, and high replication overhead—and explores how newer architectures and erasure coding could address these issues.
This article provides a comprehensive overview of Elasticsearch, covering data types, Lucene fundamentals, cluster architecture, shard allocation, indexing mechanisms, storage strategies, refresh and translog processes, segment merging, performance tuning, and JVM optimization for building scalable, near‑real‑time search solutions.
The article presents a detailed technical walkthrough of Apache Kyuubi 1.5.0, covering its service‑oriented architecture, high‑availability design, multi‑engine extensions for Spark, Flink, Trino and Hive, enhanced engine‑sharing policies, POOL mode configuration, and the project’s future roadmap.
This article details Baicaowei’s journey from a Hadoop‑based data platform to a modern StarRocks‑driven architecture, illustrating how digitalization, evolving business needs, and streamlined data pipelines empower the fast‑moving consumer goods sector through efficient data collection, modeling, and analytics.
This talk introduces the evolution of data lakes, outlines Apache Hudi’s core features, details the Flink‑Hudi integration architecture—including write pipelines, small‑file handling, and read strategies—covers real‑world use cases such as near‑real‑time DB ingestion, OLAP, and ETL, and previews upcoming Hudi roadmap items.
SimRank, a graph‑theoretic recommendation algorithm, models users and items as a bipartite graph and computes similarity through iterative matrix operations, with extensions like SimRank++ incorporating edge weights and evidence, while scalable solutions use big‑data frameworks or Monte‑Carlo simulations.
This guide reviews the most popular data visualization tools of 2022, explaining their key features, pricing plans, and how they help organizations turn complex data into clear, actionable insights for better decision‑making.
Shopee tackled frequent Flink checkpoint failures caused by back‑pressure by adopting and extending the community’s Unaligned Checkpoint mechanism—adding overdraft buffers, improving legacy sources, introducing an aligned‑checkpoint timeout, enabling output‑buffer switching, merging small HDFS files, and fixing network‑buffer deadlocks—now running hundreds of jobs with stable UC deployment and plans to enable it universally.
This guide details how to execute Apache Hudi file clustering after a batch job and before streaming, using Spark commands to merge numerous small HDFS files into larger ones, configure clustering and cleaning policies, and verify the results with HDFS counts.
This article details how Xiaomi integrated the open‑source Kyuubi SQL gateway into its evolving big‑data platform, describing the challenges of multiple SQL services, the architectural redesign for a unified, high‑availability service, performance gains, new features such as engine pooling and Z‑ordering, and future roadmap plans.
Facing growing log volumes and compliance needs, we evaluated ClickHouse’s hot‑cold‑archive storage to replace Elasticsearch, detailing configuration of storage policies, partitioning strategies, table creation, TTL handling, and cost‑effective OSS integration, ultimately achieving higher write performance and over 50% storage cost reduction.
This article explains how to construct a lakehouse architecture using Delta Lake by covering its basic concepts, version‑2 features, internal kernel and key technologies, ecosystem integrations, and classic data‑warehouse use cases such as G‑SCD and change‑data‑capture, providing practical guidance for modern big‑data engineering.
This article presents Tencent's practical experience in improving Flink job stability, covering the Oceanus platform, stability challenges, and concrete optimization techniques such as reducing failures, minimizing impact, accelerating recovery, and proactive issue detection, followed by a summary and future outlook.
This guide walks you through deploying Apache Flink on Kubernetes, covering runtime modes, building Docker images, creating ConfigMaps and Services, launching session and application clusters, submitting jobs, monitoring the Web UI, and cleaning up resources, all with practical code snippets and commands.
The article examines why software localization is essential for China’s data technology, outlines the challenges and current state of domestic operating systems, databases and big‑data platforms, discusses migration and upgrade strategies, and introduces NetEase DataFun’s self‑developed big‑data platform with its features and support.
This article explains how X‑Select’s Data Quality Platform (DQC) addresses common data quality problems in large‑scale data development by defining six quality dimensions, leveraging open‑source solutions such as Apache Griffin and Qualitis, and implementing rule definition, execution, alerting, and workflow interruption within a Spark‑based architecture.
This article explains how Amazon EMR Serverless leverages serverless architecture to simplify, scale, and reduce the cost of big data analytics by providing managed Hadoop‑based services, flexible resource allocation, built‑in security, and seamless integration with the AWS data lake ecosystem.
This article explains how Kafka attains million‑level transactions per second by leveraging sequential disk writes, memory‑mapped files, zero‑copy data transfer, and batch processing, detailing each technique's mechanics and performance impact.
This article explains how Huawei Cloud leverages Apache Hudi and HetuEngine (Presto) to improve point‑query performance on Lakehouse architectures through data layout optimization, file‑skipping techniques, metadata tables, and extensive benchmark results demonstrating multi‑fold speedups.
This article explains how YiduCore processes heterogeneous hospital data (EMR, HIS, LIS, RIS, literature) to construct real‑world medical knowledge graphs and clinical event graphs, detailing pipelines for entity extraction, normalization, graph cleaning, PSR scoring, graph embedding, and showcasing applications such as intelligent diagnosis, question answering, automated medical record generation, and clinical trial patient recruitment.
This article explains the evolving requirements of real‑time data warehouses, analyzes Alibaba's Hologres technology principles, presents recommended architectures for various latency scenarios, and discusses practical case studies, performance, security, and cost‑optimization strategies for modern big‑data platforms.
The article presents a comprehensive technical overview of MercsDB—formerly HermesDB—including its background, storage and indexing designs, native and Presto computation engines, vectorization optimizations, benchmark results, real‑world applications, and future development plans.
Bilibili’s new lake‑house platform, built on Trino and Iceberg, replaces Hive‑based pipelines by ingesting logs and DB data into Iceberg tables, applying advanced sorting, Z‑order/Hilbert clustering, bitmap and bloom indexes, virtual join columns and pre‑aggregation, enabling 70 000 daily queries on 2 PB with average scans of 2 GB and sub‑2‑second response times.
RoaringBitmap improves traditional BitMap by lazily allocating four container types, compressing sparse data, and dynamically switching between array, bitmap, and run containers, enabling fast exact set operations that power big‑data systems such as Kylin, ClickHouse, and B‑Station’s user‑visit and crowd‑package pipelines, dramatically reducing memory use and processing latency.
This article explains the growing importance of data lineage in large data warehouses, evaluates three Spark lineage extraction approaches, and provides a detailed, step‑by‑step guide to integrating the open‑source Spline agent—including codeless and programmatic initialization, configuration, dispatcher setup, post‑processing, and known limitations.
This article details Huolala's comprehensive big‑data cost‑control system—covering data‑asset measurement, budgeting, auxiliary governance, storage tiering, and elastic compute management—to dramatically reduce both storage and compute expenses while maintaining service quality across diverse workloads.
TransBigData is a Python library that streamlines the preprocessing, gridding, visualization, and OD extraction of transportation spatiotemporal datasets such as taxi GPS, bike sharing, and bus data, offering concise, efficient functions for data cleaning, rasterization, interactive mapping, and analytical workflows.
This article presents a comprehensive overview of using Elasticsearch as a time series engine, covering its motivations, challenges, key features, Alibaba Cloud TimeStream optimizations such as columnar storage, LSM structures, downsampling, and integration with Prometheus and Grafana, while also discussing performance and cost considerations.
This presentation explores the background and current state of privacy computing, its relevance to big data and AI, discusses SGX and LibOS technologies, introduces the BigDL PPML solution for secure Spark/Flink workloads, and reviews real-world applications and future outlook.
This tutorial walks you through deploying Hadoop 3.x on a Kubernetes cluster using Helm, covering repository setup, Docker image creation, Helm chart customization, service configuration, installation, verification, and clean‑up, with all necessary commands and YAML snippets.
This article details why 360 chose StarRocks as its OLAP engine, presents performance and operational comparisons with MySQL, Hive, Spark, Druid, Doris and ClickHouse, describes three major production use cases, and outlines ongoing explorations such as cloud‑native integration and Kubernetes support.
This article shares Xiaomi's internal practices of Hadoop YARN, covering scheduling and resource optimization, elastic scheduling, node overcommit handling, federation architecture, metadata warehouse construction, and future plans to improve cluster utilization and cost efficiency.
This weekly roundup presents a curated selection of high‑quality technical articles and resources on MySQL, database error‑log analysis, big‑data task optimization, SQL injection case studies, and upcoming SQLE development plans, offering readers up‑to‑date insights into database engineering and performance best practices.
The Xiaohongshu anti‑fraud team combats sophisticated same‑group and crowdsourced reselling bots by ingesting real‑time transaction streams into a Nebula Graph, using multi‑hop sub‑graph sampling, label propagation, and modularity‑based community detection to identify suspicious clusters, update risk pools, and enforce personalized purchase‑limit rules.
This article details NetEase Yanxuan's DMP tag system, covering platform overview, tag definitions, production pipelines, multi‑layer storage architecture, high‑performance query techniques, and future roadmap, illustrating how data from various sources is transformed into actionable user tags for refined operations.
The article details a practical, reusable enterprise architecture for data classification and grading that combines scanning tools, a rule‑engine with hot‑updates, a high‑performance identification service, and a security enforcement platform, addressing massive real‑time data volumes, diverse storage types, cross‑department isolation, and compliance with China’s data security laws.
This article explains the challenges of data lake adoption and details Alibaba Cloud’s metadata warehouse architecture, construction, search capabilities, asset analysis, fine‑grained profiling, and lifecycle management that together enable efficient, cloud‑native big data management.
This article outlines the configuration settings for Apache Iceberg tables and catalogs on Hadoop, covering read and write properties, combine behavior for small HDFS files, reserved table properties, catalog lock options, and Hive Metastore connector Hadoop settings, supplemented with illustrative screenshots.
This article explains the fundamentals of search, why traditional databases struggle with large‑scale text queries, introduces full‑text search and inverted indexes, describes Lucene as the core library, and details ElasticSearch's distributed architecture, features, and common use cases.
This article reviews the evolution of data warehouse architectures, explains Amazon's serverless real-time data lake design and its key services, and details Amazon Redshift's cloud-native real-time data warehouse features, streaming ingestion, and integrated machine learning capabilities.
This article explains the principles, Java implementation, and performance benefits of Bitmap and RoaringBitmap, demonstrating how they dramatically reduce storage costs, enable fast deduplication and set operations, and optimize large‑scale data warehouse queries in real‑world scenarios.
NetEase Media migrated SparkSQL to Kubernetes in 2021, using storage‑compute decoupling, hybrid deployment, custom scripts, Kyuubi failover, and extensive monitoring and resource governance, which cut cluster size by over 30% while keeping CPU utilization above 80% and GC throughput above 95%.
This article explains the architecture of Apache Doris, introduces Apache Hudi as a data‑lake format, compares Lambda and Kappa approaches, and details the design, implementation steps, and future roadmap for querying Hudi tables directly from Doris.
The vivo big‑data team details how they migrated massive real‑time workloads from Kafka to Apache Pulsar, describing cluster‑level bundle and ledger management, retention policies, a Prometheus‑Kafka‑Druid monitoring pipeline, load‑balancing tweaks, client tuning, rapid broker‑failure recovery, and future cloud‑native tracing and migration plans.
This guide details how to plan, design, and manage enterprise‑level data tracking projects, covering role responsibilities, initial and iterative construction phases, event and attribute specifications, best‑practice tips, and common pitfalls to ensure accurate, maintainable analytics.
This article describes how AutoHome tackled the complexity of managing multiple relational, NoSQL, and Hive data stores by adopting openLooKeng for unified, cross‑source SQL queries, outlines its key features such as ANSI‑SQL support, diverse connectors, and query optimizations, and details the custom enhancements made to the Apache Kylin connector to better serve their commercial data analysis workloads.
This article traces the history of data lakes from their 2010 inception with Hadoop through cloud‑native object storage, lakehouse formats like Delta Lake, and Alibaba Cloud's multi‑layer solution, outlining key architectural stages and practical construction challenges for enterprise‑grade implementations.
The DataFun Summit 2022, held on September 17, gathered leading experts from Baiji Whale Open Source, NetEase, Tapdata, and Alibaba Cloud to share deep technical insights on SeaTunnel V2 architecture, DataOps implementations, and open‑source big‑data studio tools, offering attendees practical guidance for modern data platforms.
This article explains how the rapid growth of big data—characterized by volume, velocity, and variety—is reshaping human‑resource analytics, enabling companies to identify employee trends, boost engagement, improve performance, and make smarter hiring decisions.
The article explains how data lakes excel at ingesting massive, varied data, data warehouses optimize storage and query performance, and lake‑house architectures combine both strengths—offering scalable, low‑cost storage with high‑speed analytics—highlighting industry solutions from Snowflake, Databricks, and major cloud providers.
This technical report details the requirement analysis, environment setup, monitoring tools, load‑test scripts, data design, execution results, and optimization recommendations for stress‑testing ClickHouse and Elasticsearch to ensure they can handle high‑concurrency business peaks.
This article introduces Apache Kafka and Apache Pulsar, compares their core features such as publish/subscribe messaging, storage, real‑time pipelines, and stream processing, outlines key characteristics like high throughput, scalability and fault tolerance, and explains fundamental concepts and architecture components unique to each platform.
This article provides a comprehensive overview of HBase, covering its column‑oriented design, core components such as HMaster, RegionServer and ZooKeeper, the data model with column families and row keys, and detailed step‑by‑step write and read processes for distributed storage.
This article explains the background, architecture, design choices, and step‑by‑step implementation for enabling Apache Doris to query Hudi data lake tables, covering Doris features, Hudi formats, Lambda/Kappa architectures, solution alternatives, and future roadmap for real‑time analytics.
This article walks you through the fundamentals of data governance, explains metadata management concepts, compares traditional tools with DataHub, and provides a step‑by‑step tutorial for installing Docker, Python, and DataHub 0.8.20 on CentOS 7, ingesting MySQL metadata, and exploring the UI.
The second virtual research meeting of China’s Data Science Curriculum Group gathered nearly a hundred educators and industry partners in Beijing to discuss new models for big‑data course design, curriculum construction, industry‑academia collaboration, and digital teaching platforms across multiple universities.
The article presents practical ODPS SQL optimization strategies—including explicit column selection, partition limiting, multi‑insert, proper handling of nulls, join‑type choices, map‑join and skew hints, bucketed tables, and tuned task parameters—illustrated with three real‑world cases that dramatically cut execution time and resource usage.
Lancer, Bilibili’s real‑time streaming backbone, has evolved from a monolithic Flume pipeline to a log‑id‑isolated, Kubernetes‑native architecture where Go edge agents feed synchronous Kafka‑proxied gateways into per‑logid topics processed by dedicated Flink‑SQL jobs, delivering exactly‑once, back‑pressured, highly scalable data ingestion for billions of daily requests.
The DataFun Summit 2022 featured a Data Lake & Warehouse forum with expert talks on PALO, ByteDance LAS, Iceberg at Huawei, and Presto‑Alluxio acceleration, providing detailed technical outlines, speaker backgrounds, and audience takeaways for modern big‑data architectures.
The article explains the fundamental differences between informationization and digitalization, outlines how enterprises can bridge the gap through data‑driven strategies, and provides practical frameworks and case studies such as Netflix and Huawei to guide traditional manufacturers in successful digital transformation.
This article describes Bilibili's offline multi‑datacenter architecture, explaining why a scale‑out approach was chosen over scale‑up, and detailing the unit‑based design, job placement, data replication, routing, versioning, bandwidth throttling, traffic analysis, and the operational results and future directions.
This article details ZhongAn Insurance's digital transformation through its 4633 data‑centric framework, the architecture of its JiZhi data platform, the challenges of its original ClickHouse‑based real‑time warehouse, and how migrating to StarRocks improved performance, scalability, and operational efficiency across advertising and insurance use cases.
Shopee tackled its data‑system bottlenecks by customizing Apache Hudi to provide unified stream‑batch integration, efficient state‑detail snapshots, and low‑latency wide‑table generation, using CDC‑based bootstrapping, COW/MOR tables, savepoints and partial updates, which cut latency to ten minutes, lowered resource use, and yielded several community‑backed enhancements.
This article dissects why a well‑tuned Kafka cluster can process up to 20 million messages per second, examining producer batching and custom protocols, broker page‑cache, file layout and zero‑copy techniques, as well as consumer group strategies that together unlock its high throughput.
The article introduces Tencent's big‑data platform philosophy and overall architecture, detailing three generations of evolution from offline Hadoop‑based processing to real‑time Spark/Storm integration and finally AI‑driven machine‑learning platforms, while also highlighting the team, book publication, and a related giveaway event.
This article provides a comprehensive overview of Apache Kafka, explaining its distributed message‑queue architecture, the role of topics and partitions, producer and consumer workflows, leader election, offset management, consumer‑group rebalancing, delivery semantics, transaction processing, file organization, and key configuration settings.
This article presents the design, implementation, and evaluation of CloudRCA, an intelligent root cause analysis framework for Alibaba Cloud's big‑data computing services, detailing challenges such as heterogeneous data, sample imbalance, and real‑time constraints, and describing the multi‑stage data processing, hierarchical Bayesian modeling, and deployment results that reduce MTTR by 20%.
This article explains the design and implementation of a unified data security control platform that protects user privacy and corporate data across multiple big‑data components (Hive, Hetu, GaussDB) by integrating Apache Ranger, custom authorization APIs, asynchronous processing, distributed locking, and SDK‑based authentication to achieve fine‑grained, one‑stop permission management.
The article explains data replication concepts, processes, and technologies across storage hardware, operating system, and database layers, outlines synchronous, asynchronous, and hybrid methods, discusses industry applications, trends such as hardware‑software decoupling, cloud replication, and big‑data real‑time copying, and highlights challenges and future directions.
Baidu Intelligent Cloud's Flow Log product provides real‑time, high‑throughput network flow collection, visualization, and analysis for VPC, dedicated line, and NAT gateways, enabling fault diagnosis, cost allocation, elephant‑flow management, and security inspection across ultra‑large scale cloud environments.
This article explains ByteDance's end‑to‑end data‑point (埋点) validation system, covering its technical challenges—usability, accuracy, real‑time visibility, stability, and extensibility—along with SDK integration, QR‑code workflow, JSON‑Schema verification, push‑service architecture, SLA metrics, and future automation plans.
This article surveys twenty data‑visualization tools—covering entry‑level options like Excel, online JavaScript libraries such as D3 and Google Chart API, interactive GUI utilities, map frameworks, advanced desktop environments, and expert‑grade platforms like R, Weka and Gephi—highlighting their key features, formats supported and typical use cases.
The Apache DolphinScheduler 3.0.0 release on August 10, 2022 introduces a faster UI, stronger data‑quality guarantees, modernized design, easier maintenance, AWS support, service splitting, and native Flink task support, accompanied by detailed code examples and download links.
This article explains the purpose, sources, and manifestations of pressure in Alluxio, describes its built‑in stress testing framework, outlines how to run and configure stress tools, and provides guidance on result calculation, reporting, common issues, and debugging for effective performance evaluation.
