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Application Workflow in Hadoop YARN

In the below section, I am going to mention the steps involved in YARN Application workflow

  1. The client initiates an application

  2. Resource Manager assigns a container for starting the Application Manager

  3. Application Manager registers with Resource Manager

  4. Application Manager requests containers from Resource Manager

  5. Application Manager acknowledges the Node Manager to launch containers

  6. Application code is executed in the container

  7. Client contacts Resource Manager/Application Manager to monitor the application's status

  8. Application Manager unregisters with Resource Manager

 

                                              Fig: YARN application workflow

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