Get started with Apache Flink, the open source framework that enables you to process streaming data—such as user interactions, sensor data, and machine logs—as it arrives. With this practical guide, you’ll learn how to use Apache Flink’s stream processing APIs to implement, continuously run, and maintain real-world applications.Authors Fabian Hueske, one of Flink’s creators, and Vasia Kalavri, a core contributor to Flink’s graph processing API (Gelly), explains the fundamental concepts of parallel stream processing and shows you how streaming analytics differs from traditional batch data analysis. Software engineers, data engineers, and system administrators will learn the basics of Flink’s DataStream API, including the structure and components of a common Flink streaming application.Solve real-world problems with Apache Flink’s DataStream APISet up an environment for developing stream processing applications for FlinkDesign streaming applications and migrate periodic batch workloads to continuous streaming workloadsLearn about windowed operations that process groups of recordsIngest data streams into a DataStream application and emit a result stream into different storage systemsImplement stateful and custom operators common in stream processing applicationsOperate, maintain, and update continuously running Flink streaming applicationsExplore several deployment options, including the setup of highly available installations
About the Author
Fabian Hueske is involved with Apache Flink since its very beginnings in 2009 as a research project called Stratosphere at TU Berlin. He is one of the three initial authors of the system and worked on it as part of his PhD research. Fabian is one of the initial committers and a PMC member of Apache Flink. He is a co-founder of data Artisans, a Berlin-based start-up devoted to foster Flink, where he works as a software engineer and contributes to Apache Flink. Fabian wrote several well-received blog posts about Flink and its internals (published at the Apache Flink blog http://flink.apache.org/blog, data Artisans’ blog http://data-artisans.com/blog, MapR blog, and Elastic blog).Vasiliki Kalavri is a PhD student at KTH, Stockholm, and UCL, Belgium, and an EMJD-DC fellow. She does research in distributed data processing and large-scale graph analysis.She is a committer and PMC member of Apache Flink, focusing her efforts on its graph processing library and API, Gelly.
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从章节的逻辑组织来看,作者显然是经过深思熟虑的,构建了一条非常顺畅的学习路径。它从基础概念的引入开始,逐步过渡到更复杂的窗口操作和集成模式,最后才触及到运维和性能监控的高级主题。这种螺旋上升的结构,非常适合不同经验水平的读者。对于初次接触流处理的新手,它提供了一个坚实的起点,避免了被海量信息淹没的恐慌;而对于资深开发者,后续章节中对高级特性的深入挖掘和性能瓶颈的分析,又提供了足够的挑战和收获。整体阅读下来,感觉知识的积累是循序渐进且牢固的,没有出现哪个知识点突兀地跳跃或衔接不上的情况。
评分我花了相当长的时间来评估这本书的理论深度,尤其是在对流式计算核心范式的阐述上,作者展现了令人信服的洞察力。它不仅仅是简单地罗列API调用,而是深入剖析了状态管理、时间语义(特别是事件时间和处理时间之间的微妙差异)以及故障恢复机制背后的数学和工程原理。书中对Exactly-Once保证的实现路径的探讨,涉及了分布式快照算法的细节,这种刨根问底的写作方式,让读者能够真正理解“为什么”要这样做,而不是停留在“如何”做。这种对底层逻辑的揭示,对于那些希望从“使用者”晋升为“架构师”的工程师来说,简直是无价之宝,因为它建立了一个坚实的理论基石,使得应对未来框架的演进也能游刃有余。
评分这本书在实际操作层面的指导性,是我最欣赏的部分之一。它并没有沉溺于过多的理论说教,而是非常务实地将理论与具体的代码实践紧密结合。我特别留意了它在不同部署模式下的配置和调优建议,比如如何根据不同的资源限制(内存、CPU、网络带宽)来调整Operator的并行度,以及如何利用Checkpoints和Savepoints进行高效的生产环境运维。书中提供的那些代码示例,不是那种为了演示功能而堆砌的冗余代码块,而是结构清晰、注释到位、可以直接拿来作为模板进行修改的实用案例,这极大地加速了我将所学知识投入到实际项目中去的进程,感觉就像有位资深专家全程陪跑指导一样。
评分这本书的封面设计和排版风格真是让人眼前一亮,那种简洁又不失专业感的蓝白配色,立刻传达出一种严谨可靠的信号。我拿到实体书的时候,纸张的质感也出乎意料地好,拿在手里沉甸甸的,翻阅起来非常舒服,这对于一本需要长时间沉浸阅读的技术书籍来说,简直是加分项。光是这种对物理载体的用心,就让人对内容质量有了更高的期待,感觉作者和出版社真的把这本书当作了一件精心打磨的艺术品来对待。特别是在阅读那些复杂的概念图示时,清晰的线条和合理的布局,大大降低了理解的门槛,这在很多同类书籍中是很难得的体验,让人愿意反复翻阅和参考。
评分这本书在面向生产环境的应用和运维方面的内容,可以说是做到了超乎预期地详尽。很多技术书籍往往在部署和监控环节草草收场,但这本书却用了大量的篇幅来探讨如何构建一个高可用、可观测的流处理系统。从日志记录的最佳实践到指标的定制化采集,再到集成到主流的监控栈(比如Prometheus/Grafana)的详细步骤,都给出了非常具体的操作指导。这表明作者不仅是熟悉技术本身,更是深谙在真实世界中维护一个24/7系统所面临的挑战。这种前瞻性和实践性相结合的叙事方式,让这本书的价值远超一本纯粹的“How-to”指南,更像是一本“Best Practice”的宝典。
评分很多文档中没有讲清楚的东西在书里面更详细地阐述了。代码示例是 scala 这点好评。
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评分了解flink流处理框架背后的各种概念
评分仔细阅读了前7章,语言流畅,原理和实例深入浅出。剩下的部分等实际用到的时候再翻阅。 #2019.05.16
评分很多文档中没有讲清楚的东西在书里面更详细地阐述了。代码示例是 scala 这点好评。
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