关键词：Hadoop YARN；大数据
摘 要：As big data evolves, so do its processing frameworks. Apache Hadoop was introduced in 2005 with the core MapReduce processing engine to support distributed processing of large- scale data workloads. Seven years later, Hadoop is undergoing an overhaul. The result of this process is a more generally usable Hadoop framework that supports not just MapReduce but other distributed processing models. This article introduces the new Hadoop architecture and identifies what you need to know before you switch.