LTI Capabilities. 1  Materials Tested â metals, elastomers and plastic. 2  Test Methods Rockwell and Superficial Rockwell â used to assist in determining the grade of metal. 3  Test Specimens â all hardness test specimens can be prepared at LTI.
Contrasting Hadoop & Apache Cassandra â¢ Apache Cassandra is a NoSQL database ideal for high-speed, online transactional data, while Hadoop is a big data analytics system that focuses on data warehousing and data lake use cases.
Apache Spark is an open-source processing framework that runs large-scale data analytics applications. Spark is built on an in-memory compute engine, which enables high performance querying on big data. It takes advantage of a parallel data processing framework that persists data in-memory and disk if needed.