ResourceManager中的ApplicationsMananger

[teamade]

ResourceManager不是只负责全局的资源管理和分配吗？请问这个ApplicationsManager有什么作用？

[alinly]

The ResourceManager has two main components: Scheduler - The core scheduler which allocates resources to applications based on the chosen policy (capacity guarantees, fairness etc.) ApplicationsManager - The component of the ResourceManager which is responsible for accepting job-submissions, negotiating the first container for running the appropriate ApplicationMaster and provides service for restarting the ApplicationMaster container on failure.