Managed Cassandra vs
Scalability. Reliability. Predictable Performance.
Are you looking at deploying either Apache Cassandra or DynamoDB?
Both databases have similar architecture and both offer incredible scalability, reliability, and resilience. However, there are also many differences.
Understanding the differences and cost benefits can help you determine the right solution for your application.
Instaclustr Managed Apache Cassandra
Instaclustr’s Managed Cassandra pricing is easy to calculate, and as you scale out you can expect to see the average cost per node drop. Alternatively, DynamoDB’s cost structure includes a range of variables ranging from network, read and write throughput, and storage.
We analyzed monitoring data from 1500+ Apache Cassandra nodes that we manage and demonstrated savings of 57%.
Download our free white paper Managed Apache Cassandra vs DynamoDB to look at our use case in detail and see how you can save on infrastructure costs with Instaclustr’s Managed Cassandra.
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DynamoDB vs Cassandra
Data Model Differences
Cassandra is implemented as a wide column store. It runs on instances/machines and can be configured to take advantage of native and OS level page caching, meaning hot partitions will generally be served from memory and if needed the entire resources of a single machine (and replicas) can be dedicated to serving a single partition.
DynamoDB is a document and pure key-value store and is limited to 5000 writes/reads per second for a given 10GB shard, which means hot partitions are limited in both size and throughput, whereas with Cassandra they are generally limited purely on a size basis.
Understanding High-Level Differences
|Description||Managed Cassandra||Amazon DynamoDB|
|Licence||Apache Open Source||AWS Proprietary|
|Deployable Cloud||Any Cloud||Only on AWS|
|Developer’s learning curve||Lower. Querying data with SQL like language||Querying data with a proprietary API|
|Data Modeling||JSON Support||Materialized view|
|TTL (Time-To-Live)||Support on columns||Supports at the item level|
|Multi-Region, Active-Active Data Replication||Native, tunable with full reconciliation and repair capability||Supported but no native reconciliation and repair|
|Capacity Sharding Unit||Instance level (many partitions, up to 2TB)||Partition level (up to 10GB)|
|Backups||Continuous (zero data loss), daily or on-demand backups||On-demand backup|