Compare Apache Trafodion vs. Datomic

Apache Trafodion serves as a webscale SQL-on-Hadoop solution that facilitates transactional or operational processes within the Apache Hadoop ecosystem. By leveraging the inherent scalability, elasticity, and flexibility of Hadoop, Trafodion enhances its capabilities to ensure transactional integrity, which opens the door for a new wave of big data applications to operate seamlessly on Hadoop. The platform supports the full ANSI SQL language, allowing for JDBC/ODBC connectivity suitable for both Linux and Windows clients. It provides distributed ACID transaction protection that spans multiple statements, tables, and rows, all while delivering performance enhancements specifically designed for OLTP workloads through both compile-time and run-time optimizations. Trafodion is also equipped with a parallel-aware query optimizer that efficiently handles large datasets, enabling developers to utilize their existing SQL knowledge and boost productivity. Furthermore, its distributed ACID transactions maintain data consistency across various rows and tables, making it interoperable with a wide range of existing tools and applications. This solution is neutral to both Hadoop and Linux distributions, providing a straightforward integration path into any existing Hadoop infrastructure. Thus, Apache Trafodion not only enhances the power of Hadoop but also simplifies the development process for users.

Create adaptable, decentralized systems that can utilize the complete history of your vital data rather than just its latest version. You can either build these systems on your current infrastructure or opt to transition directly to cloud solutions. Gaining critical insights requires understanding the entire narrative of your data, not merely its most recent status. Datomic maintains a repository of unchangeable facts, offering your applications a robust consistency while facilitating horizontal read scalability along with integrated caching features. Since facts are never modified directly and all data is preserved by default, you benefit from inherent auditing capabilities and the option to query historical information. Additionally, this system supports fully ACID-compliant transactions. The information model of Datomic is designed to accommodate a diverse range of use cases. With the Datomic Peer library, you can disseminate immutable data across your application nodes, ensuring in-memory access to your information. Alternatively, leverage the client library to establish lightweight nodes tailored for microservice architectures, enabling seamless integration and enhanced performance. By utilizing these capabilities, you can achieve a comprehensive understanding of your data landscape.