Enterprise data architectures are standardizing on open-source technologies: Apache Solr and Apache Spark.
Solr for Search
Apache Solr is the highly reliable, scalable open-source search engine that does the distributed indexing, replication and query load-balancing that users enjoy with Lucidworks Fusion.
Spark for Machine Learning
Fusion employs an Apache Spark cluster for all signal aggregation processes. Spark jobs help to train ML models to make predictions for new data and queries.