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Add to SafariWhen comparing Redis vs Apache Cassandra, the Slant community recommends Redis for most people. In the question“What are the best databases to use for Node.js applications?” Redis is ranked 4th while Apache Cassandra is ranked 13th.
Question Ranking
Pros
Pro Redis is written in ANSI C and therefore doesn't have a VM
Pro Good support
Redis has great docs, an active mailing list, and a github community.
Pro Redis uses the BSD license
This means that it is able to be used in a commercial product if one wants.
Pro There are numerous client libraries and frameworks to make redis more powerful
For Node.JS for example you can get something similar to what Parse.com was offering by using Node ORM.
Pro Highly available cluster
Once setup database is set up, it becomes highly available without any downtime.
Pro Highly scalable
Cassandra is very scalable and achieves the highest throughput for the maximum number of nodes compared to other alternatives. Unfortunately this also brings rather high write and read latencies.
Pro Familiar to developers used to SQL
The query language that Cassandra uses (CQL) is similar to SQL even though it's a NoSQL database.
Pro Rapid writing and lightning-fast reading
After measuring the read/write performance values on one server, you can simply calculate how many more servers you should add to the cluster to reach the required performance levels, and scale easily.
Cons
Con No JOINS
Cassandra has no support for JOINS.
