org.apache.hadoop.yarn.api.records

Enum SignalContainerCommand

java.lang.Object

java.lang.Enum<SignalContainerCommand>

org.apache.hadoop.yarn.api.records.SignalContainerCommand

All Implemented Interfaces:

Serializable, Comparable<SignalContainerCommand>

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public enum SignalContainerCommand
extends Enum<SignalContainerCommand>

Enumeration of various signal container commands.

Enum Constant Summary

Enum Constants

Enum Constant and Description
FORCEFUL_SHUTDOWN Forcefully shutdown a container.
GRACEFUL_SHUTDOWN Gracefully shutdown a container.
OUTPUT_THREAD_DUMP Used to capture thread dump.

Method Summary

Modifier and Type	Method and Description
static SignalContainerCommand	valueOf(String name) Returns the enum constant of this type with the specified name.
static SignalContainerCommand[]	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

OUTPUT_THREAD_DUMP

public static final SignalContainerCommand OUTPUT_THREAD_DUMP

Used to capture thread dump. On Linux, it is equivalent to SIGQUIT.

GRACEFUL_SHUTDOWN

public static final SignalContainerCommand GRACEFUL_SHUTDOWN

Gracefully shutdown a container. On Linux, it is equivalent to SIGTERM.

FORCEFUL_SHUTDOWN

public static final SignalContainerCommand FORCEFUL_SHUTDOWN

Forcefully shutdown a container. On Linux, it is equivalent to SIGKILL.

Method Detail

values

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

Returns:

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

valueOf

public static SignalContainerCommand 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