DataStax Astra Developer Hub

Welcome to the DataStax Astra Developer Hub. You'll find comprehensive guides and documentation to help you start working with DataStax Astra as quickly as possible. Use the included APIs to create, modify, and terminate databases, and interact with the databases you create. Let's do it!

Astra Docs      API Reference      CQL for Astra

What is DataStax Astra?

DataStax Astra, built on the best distribution of Apache Cassandra™, provides the ability to develop and deploy data-driven applications with a cloud-native service, without the hassles of databasedatabase - A group of distributed instances for storing data. Each paid Astra database has at least three instances. and infrastructure administration.

By automating tuning and configuration, DataStax Astra radically simplifies database operations.

Limits help enforce best practices by defining parameters for operations, such as tabletable - Stores data based on a primary key, which consists of a partition key and optional clustering columns. A partition key defines the node on which the data is stored, and divides data into logical groups. Define partition keys that evenly distribute the data and also satisfy specific queries. Query and write requests across multiple partitions should be avoided if possible. A clustering column defines the sort order of rows within a partition. When defining a clustering column, consider the purpose of the data. For example, retrieving the most recent transactions, sorted by date, in descending order. number and columncolumn - The smallest increment of data, which contains a name, a value, and a timestamp. Also known as a cell. size limits, ensuring the database operates with consistent performance and maintains cluster health.

Each Astra database on a paid tier employs a single capacity unitcapacity unit - Represents three database instances grouped together with three replicas. (CU) by default, which represents three database instancesinstances - The basic database infrastructure component where you store your data. Commonly referred to as a "node" in Cassandra terminology. that are grouped together. A single CU represents three replicas. CUs ensure high availability by implementing a consistent replication factorreplication factor - Replication ensures reliability and fault tolerance. The number of copies is set by the replication factor. The replication factor for paid Astra databases is set to three. that is acceptable for development and production workloads.

To ensure that an Astra database doesn't exceed capacity, you can expand the database by adding CUs.

Developers can easily resize resources as their needs grow and change and park databases when not in use to save costs and pay for only storage.

For more information about DataStax Astra, see DataStax Astra FAQ.

Updated 21 days ago

What's Next

To get started with DataStax Astra, complete the following steps:

Creating your Astra database
Obtaining database credentials
Connecting to your database

What is DataStax Astra?

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