Announcing ksqlDB 0.19.0
We’re pleased to announce ksqlDB 0.19.0! This release includes a new NULLIF function and a major upgrade to ksqlDB’s data modeling capabilities—foreign-key joins. We’re excited…
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Online, Managed Schema Evolution with ksqlDB Migrations
Making changes to a database schema is a natural part of software development. Often, it’s important to carefully manage the timing of changes and keep…
Announcing ksqlDB 0.17.0
We’re excited to announce ksqlDB 0.17, a big release for 2021. This version adds support for managing the lifecycle of your queries from CI servers,…
Keys in ksqlDB, Unlocked
One of the most highly requested enhancements to ksqlDB is here! Apache Kafka® messages may contain data in message keys as well as message values.…
Announcing ksqlDB 0.15
We’re pleased to announce ksqlDB 0.15, our first release of 2021! This version adds rich support for message key columns and long-awaited improvement to interactive…
4 Incredible ksqlDB Techniques (#2 Will Make You Cry)
Building event streaming applications has never been simpler with ksqlDB. But what is it? ksqlDB is an event streaming database for building stream processing applications.…
Announcing ksqlDB 0.14.0
We’re pleased to announce ksqlDB 0.14, one of the most feature-packed releases of the year. This version includes expanded query support over materialized views, incremental…
How Real-Time Stream Processing Safely Scales with ksqlDB, Animated
ksqlDB, the event streaming database, is built with a client/server architecture. You can run it with a single server, or you can cluster many servers…
Analysing historical and live data with ksqlDB and Elastic Cloud
Building data pipelines isn’t always straightforward. The gap between the shiny “hello world” examples of demos and the gritty reality of messy data and imperfect…
How Real-Time Materialized Views Work with ksqlDB (Animated)
All around the world, companies are asking the same question: What is happening right now? We are inundated with pieces of data that have a…
Intrusion Detection with ksqlDB
Apache Kafka® is a distributed real-time processing platform that allows for the ingestion of huge volumes of data. ksqlDB is part of the Kafka ecosystem…
Bounding ksqlDB Memory Usage
It’s important to be able to limit memory consumption of a running service. Use too much, and your application will crash and need to restart.…
ksqlDB Meets Java: An IoT-Inspired Demo of the Java Client for ksqlDB
Stream processing applications, including streaming ETL pipelines, materialized caches, and event-driven microservices, are made easy with ksqlDB. Until recently, your options for interacting with ksqlDB…