Virtual Private Clusters and Cloudera SDX
A Virtual Private Cluster uses the Cloudera Shared Data Experience (SDX) to simplify deployment of both on-premise and cloud-based applications and enable workloads running in different clusters to securely and flexibly share data.
The architecture of a Virtual Private Cluster provides many advantages for deploying workloads and sharing data among applications, including a shared catalog, unified security, consistent governance, and data lifecycle management.
In traditional CDH deployments, a Regular cluster contains storage nodes, compute nodes, and other services such as metadata services and security services that are collocated in a single cluster. This traditional architecture provides many advantages where computational services such as Impala and YARN can access collocated data sources such as HDFS or Hive.
With Virtual Private Clusters and the SDX framework, a new type of cluster is available in Cloudera Manager 6.2 and higher, called a Compute cluster. A Compute cluster runs computational services such as Impala, Hive Execution Service, Spark, or YARN but you configure these services to access data hosted in another Regular CDH cluster, called the Base cluster. Using this architecture, you can separate compute and storage resources in a variety of ways to flexibly maximize resources.