Dynamically Scheduling a Component-Based Framework in Clusters

In many clusters and datacenters, application frameworks are used that offer programming models such as Dryad and MapReduce, and jobs submitted to the clusters or datacenters may be targeted at specific instances of these frameworks, for example because of the presence of certain data. An important question that then arises is how to allocate resources to framework instances that may have highly fluctuating workloads over their lifetimes. Static resource allocation, a traditional approach for scheduling jobs, may result in inefficient resource allocation because of poor resource utilization during off-peak hours. We address this issue with a strategy for the dynamic deployment of a component-based framework by extending a resource manager responsible for scheduling jobs in multi-cluster environments. This extension allows scheduling multiple concurrent instances of the framework as longrunning utility jobs that share computational resources of the cluster. In order to accommodate the fluctuating resource demands of frameworks, we consider two provisioning policies for dynamic resource allocation: OnDemand and Proactive provisioning. We evaluate the effectiveness of both policies by comparing them with static resource allocation on the das4 multi-cluster system. Our results shows that dynamic resource allocation gives at least 30% improvement over the static resource allocation with respect to both the utilization of the resources and the reject rate of the applications within the framework.