org.apache.tez.dag.app.dag
Enum TaskTerminationCause

java.lang.Object
  java.lang.Enum<TaskTerminationCause>
      org.apache.tez.dag.app.dag.TaskTerminationCause

All Implemented Interfaces:

Serializable, Comparable<TaskTerminationCause>

public enum TaskTerminationCause
extends Enum<TaskTerminationCause>

Represents proximate cause of a Task transition to FAILED or KILLED.

Enum Constant Summary

DAG_KILL
DAG was killed

OTHER_TASK_FAILURE
One of the tasks for the source/destination vertex failed.

OTHER_VERTEX_FAILURE
Other vertex failed causing DAG to fail thus killing the parent vertex

OWN_TASK_FAILURE
One of the tasks of the destination vertex failed.

Method Summary

static TaskTerminationCause	valueOf(String name) Returns the enum constant of this type with the specified name.
static TaskTerminationCause[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DAG_KILL

public static final TaskTerminationCause DAG_KILL

DAG was killed

OTHER_VERTEX_FAILURE

public static final TaskTerminationCause OTHER_VERTEX_FAILURE

Other vertex failed causing DAG to fail thus killing the parent vertex

OTHER_TASK_FAILURE

public static final TaskTerminationCause OTHER_TASK_FAILURE

One of the tasks for the source/destination vertex failed.

OWN_TASK_FAILURE

public static final TaskTerminationCause OWN_TASK_FAILURE

One of the tasks of the destination vertex failed.

Method Detail

values

public static TaskTerminationCause[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (TaskTerminationCause c : TaskTerminationCause.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static TaskTerminationCause valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null