Santpoort-Noord / Netherlands
BlancoByte
About
Last Updated: May 7, 2026BlancoByte CDC Connector is an open-source Change Data Capture pipeline that streams real-time database changes directly into ClickHouse — with zero custom code required. Built on top of Debezium and Apache Kafka, it captures every INSERT, UPDATE, and DELETE from your source databases the moment they happen, and delivers them to ClickHouse as structured, queryable…
Getting Started
Last Updated: May 11, 2026Prerequisites Before you begin, make sure you have the following installed on your machine: An internet connection is required on first run to pull Docker images. What’s already in the demo databases When the stack starts up, each database is automatically seeded with realistic sample data: PostgreSQL includes five tables — users, products, orders, order_items,…
Installation
Last Updated: May 10, 2026Download Download the latest release as a ZIP file from the releases page and extract it: https://github.com/BlancoByte/CDC-Console First-time setup Build the Docker images and start all services: This starts the following containers: Startup takes approximately 45–60 seconds for all health checks to pass. Access the UI Open your browser and navigate to http://localhost:3000. No login…
BlancoByte CDC Connector
Last Updated: May 7, 2026Real-time Change Data Capture pipeline: Source DB → Debezium → Kafka → ClickHouse Stream every INSERT, UPDATE, and DELETE from your databases into ClickHouse within milliseconds — no code required. Manage everything through a clean web UI. Supported sources: PostgreSQL · MySQL · MariaDB · MongoDBDestination: ClickHouseVersion: v1.1 Quick Start Architecture CDC Modes: Dead Letter…
Architecture
Last Updated: April 25, 2026BlancoByte CDC Connector is built on a battle-tested open-source stack. Each component has a single responsibility, making the system easy to debug, scale, and extend. Full data flow Component breakdown Debezium acts as the bridge between your source database and Kafka. It reads directly from the database transaction log — PostgreSQL’s Write-Ahead Log (WAL) for…
Supported Databases
Last Updated: May 5, 2026Supported Databases PostgreSQL Debezium connects to PostgreSQL using logical replication with the pgoutput plugin, which is built into PostgreSQL 10 and later. No additional extensions are required. How it works: PostgreSQL writes every committed transaction to its Write-Ahead Log. Debezium creates a replication slot and reads from this log in real time. The pgoutput plugin…
Querying Your Data
Last Updated: April 25, 2026Get the current state of a table Get the latest value of each row without FINAL View the full change history of a record Find all rows deleted in the last 24 hours Count operations by type Measure replication latency Compare row counts between source and ClickHouse Query changes in a time window
Troubleshooting
Last Updated: April 25, 2026Connector registration failed Symptom: The pipeline status shows an error immediately after clicking Start. Check the connector-init logs: Check the Debezium REST API directly: Common cause: The source database is not yet healthy when the connector tries to register. Try stopping and restarting the pipeline from the UI after 30 seconds. No events arriving in…
Changelog
Last Updated: May 5, 2026All notable changes to BlancoByte CDC Connector are documented here. [v1.2] — 2026-05-04 Added Fixed [v1.1] — 2026-04-28 Added Fixed