Apache Cassandra vs MongoDB : Which is Better?

Apache Cassandra icon

Apache Cassandra

Apache Cassandra is a free and open-source distributed NoSQL database management system.

License: Open Source

Categories: Development

Apps available for Mac OS X Windows Linux BSD

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MongoDB icon

MongoDB

MongoDB is a free and open-source cross-platform document-oriented database program. Developed by MongoDB, Inc.

License: Open Source

Categories: Development

Apps available for Mac OS X Windows Linux Online BSD

Apache Cassandra VS MongoDB

MongoDB is a flexible document-based database ideal for applications requiring rich queries and ACID transactions, while Apache Cassandra excels in high availability and scalability for large distributed datasets with a focus on write performance and tunable consistency.

Apache Cassandra

Pros:

  • High write and read throughput
  • Linear scalability across multiple nodes
  • Tunable consistency levels
  • Excellent for large-scale deployments
  • Fault tolerance and high availability

Cons:

  • Steeper learning curve
  • Less flexible query language
  • No support for joins and aggregations
  • Requires careful data modeling
  • Eventual consistency can be challenging for some use cases

MongoDB

Pros:

  • Flexible schema design
  • Rich query capabilities with aggregation framework
  • Strong consistency with ACID transactions
  • Good support for geospatial queries
  • Active community and extensive documentation

Cons:

  • Scaling can be complex
  • Limited support for complex transactions
  • Higher memory usage for certain operations
  • Default data distribution can lead to hotspots
  • May require more resources for high availability

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