org.apache.slider.server.appmaster.state

Class RoleHistoryUtils

java.lang.Object

org.apache.slider.server.appmaster.state.RoleHistoryUtils

public class RoleHistoryUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
RoleHistoryUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static int	decToFloor(int val) Decrement a value but hold it at zero.
static String	hostnameOf(org.apache.hadoop.yarn.api.records.Container container)

Methods inherited from class java.lang.Object

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

Constructor Detail

RoleHistoryUtils

public RoleHistoryUtils()

Method Detail

hostnameOf

public static String hostnameOf(org.apache.hadoop.yarn.api.records.Container container)

decToFloor

public static int decToFloor(int val)

Decrement a value but hold it at zero. Usually a sanity check on counters tracking outstanding operations

Parameters:

val - value

Returns:

decremented value