akka / akka-persistence-cassandra

A replicated Akka Persistence journal backed by Apache Cassandra

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Contributors Wanted

Cassandra Plugins for Akka Persistence

For questions please use the discuss.akka.io. Tag any new questions with akka-persistence and cassandra.

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Replicated Akka Persistence journal and snapshot store backed by Apache Cassandra.

Build Status

Implementation in the master branch is currently work-in-progress for the upcoming 1.0 release. Snapshot documentation and snapshot artifacts are published for every successful master branch build.


Documentation for version 0.101 and above is available at https://doc.akka.io/docs/akka-persistence-cassandra/0.101/ with the latest docs on https://doc.akka.io/docs/akka-persistence-cassandra/current/.

Documentation for the snapshot of the master branch is available at https://doc.akka.io/docs/akka-persistence-cassandra/snapshot/.

For versions earlier than 0.101, check this README.md file for the corresponding release tag.


This Apache Cassandra plugin to Akka Persistence was initiated originally by Martin Krasser, @krasserm in 2014.

It moved to the Akka organisation in 2016 and the first release after that move was 0.7 in January 2016.

Branches and versions

There are three active branches of development:

  • 0.50+ (currently 0.62) -> release-0.50- first release under this organisation, previously under krasserm. No planned releases for this version.
  • 0.80+ (currently 0.100) -> release-0.x - removed use of Cassandra Materialized Views after they were marked as not to be used in production. Current stable version.
  • 1.0 -> master - not yet released, planned upgrade to 4.0.x of the Cassandra Driver that includes breaking API changes to CassandraSession

To release a 0.50+ or 0.80+ version checkout that branch and see the release instructions there.