Question

Under the YARN/MRv2 framework, the Scheduler and ApplicationsManager are components of which daemon?

A. ApplicationMaster
B. TaskManager
C. ScheduleManager
D. ResourceManager

Answer 1

In the YARN/MRv2 framework, the Scheduler and ApplicationsManager are components of the ResourceManager daemon. This master daemon is responsible for resource allocation among applications and managing their lifecycle.

Step-by-step explanation:

The Scheduler and ApplicationsManager are components of the ResourceManager daemon in the YARN/MRv2 framework. The ResourceManager is the master daemon of YARN and is responsible for allocating resources among all the applications in the system. It has two main components: the Scheduler, which is responsible for allocating resources to various running applications according to policy constraints (e.g., capacity, fairness) and the ApplicationsManager, which manages the lifecycle of applications and provides service for restarting the ApplicationMaster container on failure.