YARN

The fundamental idea of MRv2 is to split up the two major functionalities of the JobTracker, resource management and job scheduling/monitoring, into separate daemons.

Hadoop 新 MapReduce 框架 Yarn 详解

http://www.ibm.com/developerworks/cn/opensource/os-cn-hadoop-yarn/

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原文地址：https://www.cnblogs.com/catcoding/p/5153588.html