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It's a split decision.
Choose Apache Cassandra for distributed, highly available data across nodes and data centers, if your team can manage the infrastructure. Choose MySQL for its Community Edition, enterprise options, analytics and embedded offerings. Both have a free option. MySQL Standard Edition starts at $2,140 per server per year for 1–4 socket servers; Cassandra’s self-hosted software is free, but infrastructure costs are not published. MySQL’s review scores higher for ease of use and support.
01Side by side
| Apache Cassandra | MySQL | |
|---|---|---|
| Starting price | $0 for self-hosted software | $0 Community; paid Standard from $2,140/server/year |
| Free plan | Free to download and self-host | Community Edition is free under GPL |
| Best for | Distributed, highly available data workloads | Applications, analytics, and embedded products |
| Core strength | Masterless clusters and multi-data-center replication | Transaction processing, analytics, and enterprise options |
| Learning curve | Review ease-of-use score: 4 | Review ease-of-use score: 7 |
| Integrations/data | Cloud, on-premises, and commodity-hardware deployments | HeatWave analytics and embedded database offerings |
| Team/seat costs | No software charge; infrastructure costs not published | Licensed per server; seat limits not published |
| Support | Review support score: 5 | Review support score: 7 |
Apache Cassandra Choose Apache Cassandra if
- Choose Apache Cassandra if multi-data-center resilience matters.
- Choose Apache Cassandra if you need a masterless cluster.
- Choose Apache Cassandra if your team can run its infrastructure.
MySQL Choose MySQL if
- Choose MySQL if you want a free Community Edition.
- Choose MySQL if you need Enterprise features and technical support.
- Choose MySQL if HeatWave analytics or embedded database options fit.
02Pricing compared
Both products have a free option, but the costs beyond the software differ. Apache Cassandra’s self-hosted software is free to download; infrastructure and operating costs are not published. The pricing information lists no monthly or annual charge for Cassandra itself.
MySQL Community Edition is free under GPL. Paid Standard Edition starts at $2,140 per server per year for 1–4 socket servers; the pricing page gives no monthly billing price. That is equivalent to $178.33 per month when spread across a year, not a published monthly rate. For 5+ socket servers, Standard costs $4,280 per year. Enterprise starts at $5,350 per year for 1–4 sockets and includes a 30-day trial. Compare MySQL’s server license with Cassandra’s hosting and operations costs, not just the software price.
03Features and depth
Cassandra’s feature set centers on distributed storage and availability. Its masterless architecture gives each cluster node the same role, while replication across data centers is designed to help a cluster withstand regional outages. The project lists linear growth in read and write throughput as machines are added, online scaling by streaming data between nodes, and configurable synchronous or asynchronous replication. Audit logging covers DML, DDL and DCL activity.
MySQL spans several offerings rather than one feature set. Community Edition is its free open-source option; Enterprise adds advanced features, management tools and technical support. MySQL also offers Cluster and HeatWave. The product description says HeatWave combines transactions with lakehouse-scale analytics in a cloud service, and highlights AI and machine-learning capabilities. MySQL Classic is available through OEM and embedded licensing. In practical terms, Cassandra’s listed strengths are cluster architecture and resilience; MySQL’s breadth includes commercial editions, analytics and embedded use. The published information does not establish that one is a drop-in replacement for the other.
04Ease of use and learning curve
Cassandra’s architecture comes with an operational trade-off: the review describes it as free and feature-rich, provided your team can run and maintain the cluster. Its review scores are 4 for ease of use and 5 for support. MySQL scores 7 for ease of use and 7 for support, so our review ratings favor MySQL on both measures.
Those scores are not a migration estimate. The published material does not detail setup steps, administration requirements for each MySQL edition or learning resources for either product. If you choose self-hosted Cassandra, account for cluster management as part of the decision. If you need vendor support, MySQL Enterprise lists technical support; Cassandra’s support arrangements and costs are not published here.
Questions people ask
Is Cassandra a NoSQL database or a SQL database?
Cassandra is explicitly described here as an open-source distributed NoSQL database. The published MySQL description calls it a database platform but does not specify its data model or query language, so this comparison does not establish a like-for-like SQL-versus-NoSQL match.
Is MySQL or SQL Server better?
The published information covers MySQL, not SQL Server, so it is not enough to rank them. For MySQL, the listed options include a free Community Edition and paid Standard and Enterprise editions. Compare current SQL Server pricing, features and licensing separately before choosing.
What are the key differences between Cassandra and Elasticsearch databases?
The published details describe Cassandra as a distributed NoSQL database with masterless nodes, data-center replication and online scaling. They do not cover Elasticsearch, so we can’t make a sourced feature or pricing comparison between the two. Check Elasticsearch’s current documentation and pricing before deciding.
How can I learn Cassandra?
The published information does not list Cassandra courses, tutorials or documentation for beginners. It does identify the concepts to investigate: the masterless cluster architecture, replication across data centers, and adding nodes through online scaling. The software is free to download and self-host, but operating a cluster is your team’s responsibility.