Preface
There’s a flood of interest in learning how to analyze streaming data in large-scale systems, partly because there are situations in which the time-value of data makes real-time analytics so attractive. But gathering in-the-moment insights made possible by very low-latency applications is just one of the benefits of high-performance stream processing.
In this book, we offer an introduction to Apache Flink, a highly innovative open source stream processor with a surprising range of capabilities that help you take advantage of stream-based approaches. Flink not only enables fault-tolerant, truly real-time analytics, it can also analyze historical data and greatly simplify your data pipeline. Perhaps most surprising is that Flink lets you do streaming analytics as well as batch jobs, both with one technology. Flink’s expressivity and robust performance make it easy to develop applications, and Flink’s architecture makes those easy to maintain in production.
Not only do we explain what Flink can do, we also describe how people are using it, including in production. Flink has an active and rapidly growing open international community of developers and users. The first Flink-only conference, called Flink Forward, was held in Berlin in October 2015, the second is scheduled for September 2016, and there are Apache Flink meetups around the world, with new use cases being widely reported.
How to Use This Book
This book will be useful for both nontechnical and technical readers. ...
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