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Hadoop 2.x Administration Cookbook by Gurmukh Singh

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Configuring ResourceManager components

In YARN, ResourceManager is modular in nature, primarily limited to scheduling and not bothered about application state management, which is delegated to Application Masters. Although there are many components of RM, the core ones are: ApplicationsManager (AsM), Application Master Launcher, scheduler, and ResourceManager. AsM keeps track of which AM got assigned for which job and requests the launch of AM using AM Launcher. These are all part of the ResourceManager and are depicted in the following diagram. These components can be segregated for better control and management of resources:

Configuring ResourceManager components

In this recipe, we ...

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