Instaclustr provides a data store add-on for the Heroku platform.

Apache Cassandra for Heroku

Instaclustr provides a cloud-hosted, fully managed Apache Cassandra NoSQL database for all Heroku users via our data store add-on. Cassandra is a distributed database that can store huge amounts of data, while also providing linear scalability, continuous availability, and low latency data access.

Heroku Dev Center

The Heroku Dev Center provides all the details on provisioning our Cassandra data store add-on. Information is also provided on our support arrangements and how you connect to our environment.

Heroku Elements Marketplace

The Heroku Elements Marketplace has a specific page for the Instaclustr Managed Cassandra data store add-on.


Fully managed Apache Cassandra NoSQL database for all Heroku users via our data store add-on.

Spin up an Apache Cassandra cluster in minutes. You don’t have to think about any of the tricky cluster configuration, we’ve done all the hard work for you. Just add instaclustr to your app and away you go. It’s that easy.

Our support team have thousands of hours of DevOps experience with Apache Cassandra and complementary technologies. We have on-call engineers in multiple time zones, so you can rest assured that you’ll be able to get help when you need it, no matter which plan you’re on.

We are constantly aware of the status of every single node in every cluster we manage. We have systems in place that can detect whenever a single node in a cluster is misbehaving, and we respond immediately to ensure there is no impact to your cluster. If a node happens to fail, it is immediately repaired or replaced.

Cassandra, by design, provides continuous availability. That means zero downtime, even if multiple nodes should fail.

We collect and monitor more than 1000 different metrics from every node we manage. That lets us know exactly what the availability and performance of your cluster is at any time. Our advanced monitoring and alerting system (built on Cassandra, of course) can even detect when a single node is starting to behave differently.

We have customized and optimized the configuration of Cassandra for every Heroku plan, so you can guarantee the low latency high throughput writes your application needs, without sacrificing read efficiency.

We provide a customized dashboard where you can access important information about your cluster and view real-time status and performance monitors for every node.

If your application is required to comply with EU data privacy laws, we offer Cassandra clusters hosted entirely in the EU. Just remember to select one of the EU plans when creating the add-on. If you require your cluster in any other region, please contact us.

Our add-on provisions a recent version of Cassandra 2.1 by default. If you need Apache Cassandra 2.2.x or 3.x then simply provision a 2.1 cluster and then contact 
[email protected] and we will upgrade your cluster for you (with no downtime necessary).