ArangoDB vs Cassandra: What are the differences?
What is Cassandra? A partitioned row store. Rows are organized into tables with a required primary key. Partitioning means that Cassandra can distribute your data across multiple machines in an application-transparent matter. Cassandra will automatically repartition as machines are added and removed from the cluster. Row store means that like relational databases, Cassandra organizes data by rows and columns. The Cassandra Query Language (CQL) is a close relative of SQL.
ArangoDB and Cassandra belong to "Databases" category of the tech stack.
"Grahps and documents in one DB" is the primary reason why developers consider ArangoDB over the competitors, whereas "Distributed" was stated as the key factor in picking Cassandra.
ArangoDB and Cassandra are both open source tools. ArangoDB with 8.22K GitHub stars and 576 forks on GitHub appears to be more popular than Cassandra with 5.27K GitHub stars and 2.35K GitHub forks.
Uber Technologies, Facebook, and Spotify are some of the popular companies that use Cassandra, whereas ArangoDB is used by AresRPG, Stepsize, and Brainhub. Cassandra has a broader approval, being mentioned in 342 company stacks & 239 developers stacks; compared to ArangoDB, which is listed in 11 company stacks and 15 developer stacks.
What is ArangoDB?
What is Cassandra?
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Stitch is a wrapper around a Cassandra database. It has a web application that provides read-access to the counts through an HTTP API. The counts are written to Cassandra in two distinct ways, and it's possible to use either or both of them:
Real-time: For real-time updates, Stitch has a processor application that handles a stream of events coming from a broker and increments the appropriate counts in Cassandra.
Batch: The batch part is a MapReduce job running on Hadoop that reads event logs, calculates the overall totals, and bulk loads this into Cassandra.
Cassandra is our data management workhorse. It handles all our key-value services, supports time-series data storage and retrieval, securely stores all our audit trails, and backs our Datomic database.
While we experimented with Cassandra in the past, we are no longer using it. It is, however, open for consideration in future projects.
We are using Cassandra in a few of our apps. One of them is as a count service application to track the number of shares, clicks.. etc