Thanks to the changes proposed at CASSANDRA-8717, CASSANDRA-7575 and CASSANDRA-6480, Stratio is glad to present its Lucene-based implementation of Cassandra secondary indexes as a plugin that can be attached to the Apache distribution.
This paper highlights how Stratio’s connector for Apache Spark implements the PrunedFilteredScan API instead of the TableScan API which effectively allows you to avoid scanning the entire collection.
This post contains the winning solution for the Stratio challenge 2015 developed by Marco Piva, Leonardo Biagioli, Fabio Fantoni and Andrea De Marco (BitBang).
If you really want to learn and soak up every bit of Scala’s powerful functional features try not to learn them all at once, pick one and try to think of parts of your current code where this feature might fit in.
Security is often a forgotten concern in Big Data environments. However, as these technologies are being embraced by companies with sensitive data (think, for example, about banks or insurance companies), security is a growing requirement.
Stratio has just added top-k queries support to its Lucene based implementation of the Cassandra’s secondary indexes. This implementation was originally designed to allow embedded full-text and multivariable search in Apache Cassandra.