Multi-job Hadoop scheduling to process Geo-distributed big data

摘要

Effective big data analysis is one of the most notable research challenge of the latest few years. Hadoop, the most popular implementation of the MapReduce framework, has today become widespread used for processing large data sets using cloud resources. However, in many scenarios, data are geographically distributed over data centers and moving them to a single site for processing may result extremely expensive when not feasible at all. A key challenge for running applications in such a geographically distributed environment is how to efficiently schedule the computation over the different datacenters. In this work we present a job scheduler for a Hierarchical Hadoop Framework (H2F) that allows the management of multiple requests of job execution ensuring an efficient use of the available resources. Our experimental evaluations show that using H2F significantly improves processing time for geodistributed data sets with respect to a plain Hadoop system.