pravega / flink-connectors

Apache Flink connectors for Pravega.

Version Matrix

Pravega Flink Connectors Build Status

This repository implements connectors to read and write Pravega Streams with Apache Flink stream processing framework.

The connectors can be used to build end-to-end stream processing pipelines (see Samples) that use Pravega as the stream storage and message bus, and Apache Flink for computation over the streams.

Features & Highlights

  • Exactly-once processing guarantees for both Reader and Writer, supporting end-to-end exactly-once processing pipelines

  • Seamless integration with Flink's checkpoints and savepoints.

  • Parallel Readers and Writers supporting high throughput and low latency processing.

  • Table API support to access Pravega Streams for both Batch and Streaming use case.

Compatibility Matrix

The master branch will always have the most recent supported versions of Flink and Pravega.

Git Branch Pravega Version Java Version To Build Connector Java Version To Run Connector Flink Version Status Artifact Link
master 0.10 Java 11 Java 8 or 11 1.12 Under Development
r0.10-flink1.11 0.10 Java 11 Java 8 or 11 1.11 Under Development
r0.10-flink1.10 0.10 Java 11 Java 8 or 11 1.10 Under Development
r0.9 0.9 Java 11 Java 8 or 11 1.11 Released
r0.9-flink1.10 0.9 Java 11 Java 8 or 11 1.10 Released
r0.9-flink1.9 0.9 Java 11 Java 8 or 11 1.9 Released


To learn more about how to build and use the Flink Connector library, follow the connector documentation here.

More examples on how to use the connectors with Flink application can be found in Pravega Samples repository.


Don't hesitate to ask! Contact the developers and community on Slack (signup) if you need any help. Open an issue if you found a bug on Github Issues.


Flink connectors for Pravega is 100% open source and community-driven. All components are available under Apache 2 License on GitHub.