Package org.apache.hadoop.yarn.api.protocolrecords

Class StartContainerRequest

java.lang.Object

org.apache.hadoop.yarn.api.protocolrecords.StartContainerRequest

@Public
@Stable
public abstract class StartContainerRequest
extends Object

The request sent by the ApplicationMaster to the NodeManager to start a container.

The ApplicationMaster has to provide details such as allocated resource capability, security tokens (if enabled), command to be executed to start the container, environment for the process, necessary binaries/jar/shared-objects etc. via the ContainerLaunchContext.

See Also:

• ContainerManagementProtocol.startContainers(StartContainersRequest)

Constructor Summary

Constructors

Constructor	Description
StartContainerRequest()

Method Summary

Modifier and Type	Method	Description
abstract ContainerLaunchContext	getContainerLaunchContext()	Get the ContainerLaunchContext for the container to be started by the NodeManager.
abstract Token	getContainerToken()	Get the container token to be used for authorization during starting container.
static StartContainerRequest	newInstance(ContainerLaunchContext context, Token container)
abstract void	setContainerLaunchContext(ContainerLaunchContext context)	Set the ContainerLaunchContext for the container to be started by the NodeManager
abstract void	setContainerToken(Token container)

Methods inherited from class java.lang.Object

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

Constructor Details

StartContainerRequest

public StartContainerRequest()

Method Details

newInstance

@Public
@Stable
public static StartContainerRequest newInstance(ContainerLaunchContext context,
 Token container)

getContainerLaunchContext

@Public
@Stable
public abstract ContainerLaunchContext getContainerLaunchContext()

Get the ContainerLaunchContext for the container to be started by the NodeManager.

Returns:

ContainerLaunchContext for the container to be started by the NodeManager

setContainerLaunchContext

@Public
@Stable
public abstract void setContainerLaunchContext(ContainerLaunchContext context)

Set the ContainerLaunchContext for the container to be started by the NodeManager

Parameters:

context - ContainerLaunchContext for the container to be started by the NodeManager

getContainerToken

@Public
@Stable
public abstract Token getContainerToken()

Get the container token to be used for authorization during starting container.

Note: NMToken will be used for authenticating communication with NodeManager.

Returns:

the container token to be used for authorization during starting container.

See Also:

• NMToken
• ContainerManagementProtocol.startContainers(StartContainersRequest)

setContainerToken

@Public
@Stable
public abstract void setContainerToken(Token container)