This is __Maxwell's daemon__, a [change data capture](https://www.confluent.io/blog/how-change-data-capture-works-patterns-solutions-implementation/) application that reads MySQL binlogs and writes data changes as JSON to Kafka, Kinesis, and other streaming platforms. [↓ Download](https://github.com/zendesk/maxwell/releases/download/v1.46.0/maxwell-1.46.0.tar.gz) \| [⚝ Source / Community](https://github.com/zendesk/maxwell) \| [☝ Getting Started](/quickstart) \| [☷ Reference](/config) __What's it for?__ - ETL of all sorts - maintaining an audit log of all changes to your database - cache building/expiring - search indexing - inter-service communication __It goes like this:__ ``` mysql> update `test`.`maxwell` set mycol = 55, daemon = 'Stanislaw Lem'; maxwell -> kafka: { "database": "test", "table": "maxwell", "type": "update", "ts": 1449786310, "data": { "id":1, "daemon": "Stanislaw Lem", "mycol": 55 }, "old": { "mycol":, 23, "daemon": "what once was" } } ```