Ververica Blog

Apache Flink, stream processing, event-driven applications, and more.

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3 important performance factors for stateful functions and operators in Flink

February 15, 2019

This post focuses on the 3 factors developers should keep in mind when assessing the performance of a function or operator that uses Flink’s Keyed State in a stateful streaming application.

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Smart Systems IoT Use Case with open source Kafka, Flink & CrateDB

February 12, 2019

 

The Smart Systems IoT Use Case

IoT systems use data and artificial intelligence (AI) to monitor, control, or predict the behavior of internet-connected devices. They are the basis for new smart factories, smart cities, and smart vehicle fleets...

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MATCH_RECOGNIZE: where Flink SQL and Complex Event Processing meet.

January 29, 2019

With the unavoidable and ever-growing presence of sensors and smart devices, Complex Event Processing (CEP) is fast becoming a critical paradigm for enterprises to keep ahead of the curve and turn real-time, potentially infinite data streams into...

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Oceanus: A one-stop platform for real time stream processing powered by Apache Flink

January 25, 2019

In recent years, the increasing need for timeliness, together with advances in software and hardware technologies, drive the emergence of real-time stream processing. Real-time stream processing allows public and private organizations to monitor...

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How Trackunit leverages Flink to process real-time data from industrial IoT devices

January 22, 2019

Recently there has been significant discussion about edge computing as a major technology trend in 2019. Edge computing brings computing capabilities away from the cloud, and rather close to the field, especially in the Industrial IoT sector...

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4 characteristics of Timers in Apache Flink to keep in mind

January 18, 2019

This blog post describes some basic concepts and considerations for the use of Timers in Apache Flink. Developers can register their own Timers with Flink’s ProcessFunction operator that gives access to some fundamental building blocks for...

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The transformation of (open source) data processing

January 15, 2019

This blog post is based on a talk I gave at the Big Data Spain Conference 2018 in Madrid. The post goes through how [open source] data processing has evolved and covers the different technologies and how they progressed over time as different...

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How to manage your RocksDB memory size in Apache Flink

January 11, 2019

This blog post describes some configuration options that will help you to efficiently manage the memory size of the RocksDB state backend in Apache Flink. In an earlier post, we described the alternative state backend options supported in Flink...

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5 “baby” steps to develop a Flink application

December 17, 2018

Getting up and running with Flink is easy as ABC. In this post, we go over 5 “baby” steps to guide you through setting up your first running Flink application locally. We discuss the software requirements to get started and point out some...

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How can companies benefit from data-driven applications and open-source software?

December 17, 2018

This blog post is a Q&A session with Jakub Piasecki, Director of Technology at Freeport Metrics, about the benefits of real-time, data-driven applications and open-source software.

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