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 big data processing framework built around speed, ease of use, and sophisticated analytics. It was originally developed in 2009 in UC Berkeleyâs AMPLab, and open sourced in 2010 as an Apache project.