This whitepaper describes the YARN cluster's Container specifications requested for the various Hadoop applications launched by the Catalog Service. The details in the document are not suitable to determine the sizing of the EDC Cluster nodes or for Performance Tuning. These details are covered in the referenced Performance and Tuning Guides.

This whitepaper details about the system requirements needed for the cluster nodes for running HBase and Solr and Ingestion applications as part of Catalog service startup. The Catalog service starts HBase, Solr and Ingestion applications onto the cluster as YARN applications for storing and indexing the catalog data for efficient data retrieval. For each of these applications, the catalog service uses default settings for allocating CPU cores and memory in the cluster. This paper will help to understand how those numbers are derived and help in estimating the system requirements for the cluster nodes for Catalog service for a specific load type setting.

Usage of Ultra Messaging in production may need to be identified for purposes such as licensing. ​The following ​methods can aid in the identification process.