NUMA-aware Deployments for LeanXcale Database Appliance

Abstract

In this paper we discuss NUMA awareness for the LeanXcale database appliance being developed in cooperation with Bull-Atos in the Bull Sequana in the context of the CloudDBAppliance European project. The Bull Sequana is a large computer than in its maximum version can reach 896 cores and 140 TB of main memory. Scaling up in such a large computer with a deep NUMA hierarchy is very challenging. In this paper we discuss how LeanXcale database can be deployed in NUMA architectures such as the one of the Bull Sequana and what aspects have been taking into account to maximize efficiency and to introduce the necessary flexibility in the deployment infrastructure.