STATISTICAL RESOURCE BALANCING OF CONSTRAINED MICROSERVICES IN CLOUD PAAS ENVIRONMENTS

摘要

A resource balancer for a cluster of nodes in a cloud computing system includes a load calculation module that receives load reports for respective load metrics associated with the nodes, wherein the load reports are indicative of respective loads on a plurality of resources provided by the nodes, calculates, based on the received load reports, an expected distribution of loads across the nodes for each load metric, and calculates, based on the expected distribution of loads, probabilities that each of the load metrics will exceed a respective predetermined capacity for each node. A load balancing module selectively balances, based on the calculated probabilities, the loads on the resources provided by the nodes.