org.apache.giraph.yarn

Class GiraphApplicationMaster

java.lang.Object

org.apache.giraph.yarn.GiraphApplicationMaster

public class GiraphApplicationMaster
extends Object

The YARN Application Master for Giraph is launched when the GiraphYarnClient successfully requests an execution container from the Resource Manager. The Application Master is provided by Giraph to manage all requests for resources (worker nodes, memory, jar files, job configuration metadata, etc.) that Giraph will need to perform the job. When Giraph runs in a non-YARN context, the role of the Application Master is played by Hadoop when it launches our GraphMappers (worker/master task nodes) to run the job.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GiraphApplicationMaster(org.apache.hadoop.yarn.api.records.ContainerId cId, org.apache.hadoop.yarn.api.records.ApplicationAttemptId aId) Construct the GiraphAppMaster, populate fields using env vars set up by YARN framework in this execution container.

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Application entry point

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GiraphApplicationMaster

protected GiraphApplicationMaster(org.apache.hadoop.yarn.api.records.ContainerId cId,
                                  org.apache.hadoop.yarn.api.records.ApplicationAttemptId aId)
                           throws IOException

Construct the GiraphAppMaster, populate fields using env vars set up by YARN framework in this execution container.

Parameters:

cId - the ContainerId

aId - the ApplicationAttemptId

Throws:

IOException

Method Detail

main

public static void main(String[] args)

Application entry point

Parameters:

args - command-line args (set by GiraphYarnClient, if any)