When comparing ArangoDB vs MariaDB, the Slant community recommends ArangoDB for most people. In the question“What are the best open-source Relational Databases?” ArangoDB is ranked 4th while MariaDB is ranked 5th.
Ranked in these QuestionsQuestion Ranking
Pro Easy cluster setup
Pro Supports joins
Unlike many NoSQL databases, ArangoDB does support joins in AQL queries.
Pro Powerful Java Driver (Sync & Async)
ArangoDB has a very good Java Driver for synchronous and asynchronous. In addition the team there is working on a Spring Data integration.
Pro Transaction save
You can use ACID Transactions for short and small data retrieval and/or modification operations in ArangoDB.
Pro Document and graph-orientend
You can model your data as documents or as a graph - no data model lock-in. You can even combine both models and use them in a single AQL query.
Pro Dynamic column support
MariaDB has dynamic column support which allows for some NoSQL type functionality. So one database interface can provide both SQL and NoSQL for different software development needs.
Pro Truly open development community
All development decisions for MariaDB can be reviewed and debated on a public mailing list or in the public bug tracker. Contributing to MariaDB is easy and the patch flow is fully transparent and public. But it's not all about the code contribution either - MariaDB also has very active documentation efforts and other related things that help developers in their day-to-day database administration.
Pro More cutting edge features
e.g. GIS since 5.3