Proxmox High Availability
Simon M. C. Cheng
Java 8 Lambdas: Pragmatic Functional Programming
Richard Warburton
Apache Solr Beginner's Guide
Alredo Serafini
Learning Bayesian Models With R
Dr. Hari M. Koduvely
Pro Apache Hadoop
Sameer Wadkar & Jason Venner
Hadoop Cluster Deployment
Danil Zburivsky
Apache Spark 2.x Cookbook
Rishi Yadav