Gazette makes it easy to build platforms that flexibly mix SQL, batch, and millisecond-latency streaming processing paradigms. It enables teams, applications, and analysts to work from a common catalog of data in the way that's most convenient to them. Gazette's core abstraction is a "journal" -- a streaming append log that's represented using regular files in a BLOB store (i.e., S3).
The magic of this representation is that journals are simultaneously a low-latency data stream and a collection of immutable, organized files in cloud storage (aka, a data lake) -- a collection which can be directly integrated into familiar processing tools and SQL engines.
Atop the journal broker service, Gazette offers a powerful consumers framework for building streaming applications in Go. Gazette has served production use cases for nearly five years, with deployments scaled to millions of streamed records per second.
This is not the official Gazette repository. Gazette is developed at github.com/gazette/core.