org.apache.tez.runtime.api
Interface TezRootInputInitializerContext

public interface TezRootInputInitializerContext

Method Summary

org.apache.hadoop.yarn.api.records.ApplicationId	getApplicationId() Get the YARN application id given to the Tez Application Master
int	getDAGAttemptNumber()
String	getDAGName() Get the name of the DAG
String	getInputName() Get the name of the input
int	getNumClusterNodes() Get the number of nodes in the cluster
int	getNumTasks() Get the number of tasks in this vertex.
org.apache.hadoop.yarn.api.records.Resource	getTotalAvailableResource() Get the total resource allocated to this vertex.
byte[]	getUserPayload() Get the user payload
org.apache.hadoop.yarn.api.records.Resource	getVertexTaskResource() Get the resource allocated to a task of this vertex

Method Detail

getApplicationId

org.apache.hadoop.yarn.api.records.ApplicationId getApplicationId()

Get the YARN application id given to the Tez Application Master

Returns:

Application id

getDAGName

String getDAGName()

Get the name of the DAG

Returns:

DAG name

getInputName

String getInputName()

Get the name of the input

Returns:

Input name

getUserPayload

byte[] getUserPayload()

Get the user payload

Returns:

User payload

getNumTasks

int getNumTasks()

Get the number of tasks in this vertex. Maybe -1 if the vertex has not been initialized with a pre-determined number of tasks.

Returns:

number of tasks

getVertexTaskResource

org.apache.hadoop.yarn.api.records.Resource getVertexTaskResource()

Get the resource allocated to a task of this vertex

Returns:

Resource

getTotalAvailableResource

org.apache.hadoop.yarn.api.records.Resource getTotalAvailableResource()

Get the total resource allocated to this vertex. If the DAG is running in a busy cluster then it may have no resources available dedicated to it. The DAG may divide its resources among member vertices.

Returns:

Resource

getNumClusterNodes

int getNumClusterNodes()

Get the number of nodes in the cluster

Returns:

Number of nodes

getDAGAttemptNumber

int getDAGAttemptNumber()

Returns:

DAG Attempt number