HDP学习--YARN Resource Management(01)

一、YARN组件功能的总结：

ResourceManager	NodeManager	Container	ApplicationMaster
Schedule global resources	Manage local memory and CPU allocation	Allocated RAM and CPU cores by NodeManager	YARN application bootstrap process
Enable multitenancy			Negotiate resources
Enable SLA enforcement			Provide application fault tolerance
Monitor and manage NodeManagers	Track and report on node health		Work with NodeManager for container restart
Monitor and manage ApplicationMasters	Manage file localization for containers	Run ApplicationMasters and job tasks
Monitor containers globally	Monitor and manage local containers		Monitor job tasks and containers across cluster
Manage ACLs
Manage Tokens

二、知识回归：