Apache Kafka is one of the most used pieces of software in modern application development because of its distributed nature, high throughput, and horizontal scalability. Every day more and more organizations are adopting Kafka as the central event bus for their event-driven architecture. As a result, more and more data flows through the cluster, making the connectivity requirements rise in priority for any backlog. For this reason, the Apache Camel community released the first iteration of Kafka Connect connectors for the purpose of easing the burden on development teams.
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Want to smoothly modernize your legacy and monolithic applications to microservices or cloud-native without writing any code? Through this demonstration, we show you how to achieve the following change data capture scenario between two microservices on Red Hat OpenShift using the combination of Syndesis, Strimzi, and Debezium.
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One question always comes up as organizations moving towards being cloud-native, twelve-factor, and stateless: How do you get an organization’s data to these new applications? There are many different patterns out there, but one pattern we will look at today is change data capture. This post is a simple how-to on how to build out a change data capture solution using Debezium within an OpenShift environment. Future posts will also add to this and add additional capabilities.
Continue reading Change data capture with Debezium: A simple how-to, Part 1
Change data capture, or CDC, is a well-established software design pattern for a system that monitors and captures the changes in data so that other software can respond to those changes. CDC captures row-level changes to database tables and passes corresponding change events to a data streaming bus. Applications can read these change event streams and access these change events in the order in which they occurred.
Thus, change data capture helps to bridge traditional data stores and new cloud-native event-driven architectures. Meanwhile, Debezium is a set of distributed services that captures row-level changes in databases so that applications can see and respond to those changes. This general availability (GA) release from Red Hat Integration includes the following Debezium connectors for Apache Kafka: MySQL Connector, PostgreSQL Connector, MongoDB Connector, and SQL Server Connector.
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Kafka Connect is an integration framework that is part of the Apache Kafka project. On Kubernetes and Red Hat OpenShift, you can deploy Kafka Connect using the Strimzi and Red Hat AMQ Streams Operators. Kafka Connect lets users run sink and source connectors. Source connectors are used to load data from an external system into Kafka. Sink connectors work the other way around and let you load data from Kafka into another external system. In most cases, the connectors need to authenticate when connecting to the other systems, so you will need to provide credentials as part of the connector’s configuration. This article shows you how you can use Kubernetes secrets to store the credentials and then use them in the connector’s configuration.
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