welcome
Thank you for purchasing the MEAP for Flink in Action. We are excited to deliver this book as
large-scale stream processing using Flink and Google Data Flow is fast gaining in popularity.
Stream processing is much more than just processing records one at a time as they arrive.
True stream processing needs support for concepts such as event time processing to ensure
stream processing systems are just as accurate as the batch processing system. There is a
need for one system the performs both stream and batch processing. Apache Flink is that
system.
As we started exploring Apache Flink, we discovered the subtle challenges that are
inherent in stream processing. These challenges are intrinsic to how stream processing is
performed. Unlike batch processing, where all data is available when processing begins,
stream processing must be able to handle incomplete data, late arrivals, and out-of-order
arrivals—without compromising performance or accuracy—and be resilient to failure. We
tackle all these challenges in this book.
Writing this book has been a challenge, partly because the technology is changing rapidly
as we write and partly because we want to make this complex topic of streaming easy to
understand in the context of everyday use cases. We believe that eventually streaming
systems will become the norm, because the real world operates in the streaming mode. Real-
world events occur and are captured continuously in transaction systems. The reporting
systems that aggregate these transactions into reports operate in batch-processing mode due
to technology limitations. These limitations are now being addressed by systems such as
Apache Flink. We hope this book helps you develop a strong foundation in the concepts and
the challenges of implementing streaming systems capable of handling high-velocity and high-
volume streaming data.
Please be sure to post any questions, comments, or suggestions you have about the book
in the Author Online forum. Your feedback is essential in developing the best book possible.
— Sameer B. Wadkar and Hari Rajaram
©Manning Publications Co. We welcome reader comments about anything in the manuscript - other than typos and
other simple mistakes. These will be cleaned up during production of the book by copyeditors and proofreaders.
https://forums.manning.com/forums/flink-in-action
我的内容管理
收起
我的收益 登录查看自己的收益
我的积分
登录查看自己的积分
我的C币
登录后查看C币余额
我的收藏 
我的下载 
下载帮助 
评论1