org.apache.hadoop.yarn.api.records
Enum NodeState

java.lang.Object
  extended by java.lang.Enum<NodeState>
      extended by org.apache.hadoop.yarn.api.records.NodeState
All Implemented Interfaces:
Serializable, Comparable<NodeState>

@InterfaceAudience.Public
@InterfaceStability.Unstable
public enum NodeState
extends Enum<NodeState>

State of a Node.


Enum Constant Summary
DECOMMISSIONED
          Node is out of service
LOST
          Node has not sent a heartbeat for some configured time threshold
NEW
          New node
REBOOTED
          Node has rebooted
RUNNING
          Running node
UNHEALTHY
          Node is unhealthy
 
Method Summary
 boolean isUnusable()
           
static NodeState valueOf(String name)
          Returns the enum constant of this type with the specified name.
static NodeState[] 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

NEW

public static final NodeState NEW
New node


RUNNING

public static final NodeState RUNNING
Running node


UNHEALTHY

public static final NodeState UNHEALTHY
Node is unhealthy


DECOMMISSIONED

public static final NodeState DECOMMISSIONED
Node is out of service


LOST

public static final NodeState LOST
Node has not sent a heartbeat for some configured time threshold


REBOOTED

public static final NodeState REBOOTED
Node has rebooted

Method Detail

values

public static NodeState[] 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 (NodeState c : NodeState.values())
    System.out.println(c);

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

valueOf

public static NodeState 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

isUnusable

public boolean isUnusable()


Copyright © 2013 Apache Software Foundation. All Rights Reserved.