Category: Amazon Keyspaces (for Apache Cassandra)

At Monzo, we use Amazon Keyspaces (for Apache Cassandra) as our main operational database. Today, we store over 350 TB of data across more than 2,000 tables in Amazon Keyspaces, handling over 2,000,000 reads and 100,000 writes per second at peak. In this post, we share how we used a different mechanism for row expiry than the Time to Live setting in Amazon Keyspaces to reduce our operating costs for an index while preserving its semantics.

In this post, we show you how to use Amazon ElastiCache as a write-through cache for an application that uses an Amazon Keyspaces (for Apache Cassandra) table to store data about book awards. We use a Cassandra Python client driver to access Amazon Keyspaces programmatically and a Redis client to connect to the ElastiCache cluster.

In this post we walk through the steps to setup CQL Replicator and migrate a table from self-managed Cassandra cluster to Amazon Keyspaces. We demonstrate how to set up, run, and shut down the CQLReplicator job using command line tooling and observe changes flowing through the pipeline in Amazon CloudWatch.

This post discusses why DML auditing is important for some organizations, and walks you through setting it up for Amazon Keyspaces. Then, using an example, we show how native integration between Amazon Keyspaces and CloudTrail makes it straightforward to record and analyze audit trails (change events) from multiple tables in a keyspace without the use of additional tools.

PayU provides payment gateway solutions to online businesses through its award-winning technology and has empowered over 500 thousand businesses, including the country’s leading enterprises, e-commerce giants, and SMBs, to process millions of transactions daily. In this post, we outline how at PayU, we use Amazon Keyspaces (for Apache Cassandra) as the feature store for real-time, low-latency inference in the payment flow.

Amazon Keyspaces (for Apache Cassandra) is a scalable, highly available, and managed Apache Cassandra-compatible database service. With Amazon Keyspaces, you can run your Cassandra workloads on AWS using the same Cassandra application code and developer tools that you’re currently using.

Today, we are introducing support for frozen collections in Amazon Keyspaces. With this launch, you can use the frozen keyword and store collection data types (like lists, sets, and maps) as a single, immutable value. In this post, we discuss the benefits and use cases of this new feature, and demonstrate how to create and use frozen collections in Amazon Keyspaces.

Amazon Keyspaces (for Apache Cassandra) is a scalable, highly available, and managed Apache Cassandra-compatible database service. With Amazon Keyspaces, you can run your Cassandra workloads on AWS using the same Cassandra application code and developer tools that you use today. Today we are introducing Amazon Keyspaces Multi-Region Replication. Amazon Keyspaces Multi-Region Replication is a new […]

Amazon Keyspaces (for Apache Cassandra) is a scalable, highly available, and managed Apache Cassandra-compatible database service. With Amazon Keyspaces, you can run your Cassandra workloads on AWS using the same Cassandra application code and developer tools that you use today. You don’t have to provision, patch, or manage servers, and you don’t have to install, […]

The Amazon Keyspaces team had a great time meeting with many of you at AWS re:Invent 2022. It was particularly exciting to experience re:Invent at its peak in-person attendance. The team enjoyed listening to your feedback and use cases, and understanding what you want us to build next. We work backwards from these conversations and feedback […]

Amazon Web Services (AWS) customers migrating their Apache Cassandra workloads to Amazon Keyspaces (for Apache Cassandra) have rediscovered Cassandra’s lightweight transactions (LWT) API. Amazon Keyspaces LWTs have consistent performance, reliable scalability, and improved isolation that allow developers to use LWTs with mission critical workloads. With Amazon Keyspaces, LWTs have similar single digit millisecond latencies as […]