org.apache.hadoop.yarn.api.protocolrecords

Class StartContainersResponse

java.lang.Object

org.apache.hadoop.yarn.api.protocolrecords.StartContainersResponse

@InterfaceAudience.Public
 @InterfaceStability.Stable
public abstract class StartContainersResponse
extends Object

The response sent by the NodeManager to the ApplicationMaster when asked to start an allocated container.

See Also:

ContainerManagementProtocol.startContainers(StartContainersRequest)

Constructor Summary

Constructors

Constructor and Description
StartContainersResponse()

Method Summary

Modifier and Type	Method and Description
abstract Map<String,ByteBuffer>	getAllServicesMetaData() Get the meta-data from all auxiliary services running on the NodeManager.
abstract Map<ContainerId,org.apache.hadoop.yarn.api.records.SerializedException>	getFailedRequests() Get the containerId-to-exception map in which the exception indicates error from per container for failed requests
abstract List<ContainerId>	getSuccessfullyStartedContainers() Get the list of ContainerId s of the containers that are started successfully.

Methods inherited from class java.lang.Object

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

Constructor Detail

StartContainersResponse

public StartContainersResponse()

Method Detail

getSuccessfullyStartedContainers

@InterfaceAudience.Public
 @InterfaceStability.Stable
public abstract List<ContainerId> getSuccessfullyStartedContainers()

Get the list of ContainerId s of the containers that are started successfully.

Returns:

the list of ContainerId s of the containers that are started successfully.

See Also:

ContainerManagementProtocol.startContainers(StartContainersRequest)

getFailedRequests

@InterfaceAudience.Public
 @InterfaceStability.Stable
public abstract Map<ContainerId,org.apache.hadoop.yarn.api.records.SerializedException> getFailedRequests()

Get the containerId-to-exception map in which the exception indicates error from per container for failed requests

Returns:

map of containerId-to-exception

getAllServicesMetaData

@InterfaceAudience.Public
 @InterfaceStability.Stable
public abstract Map<String,ByteBuffer> getAllServicesMetaData()

Get the meta-data from all auxiliary services running on the NodeManager.

The meta-data is returned as a Map between the auxiliary service names and their corresponding per service meta-data as an opaque blob ByteBuffer

To be able to interpret the per-service meta-data, you should consult the documentation for the Auxiliary-service configured on the NodeManager

Returns:

a Map between the names of auxiliary services and their corresponding meta-data