Package org.apache.hadoop.yarn.server.resourcemanager.recovery.records

Class Epoch

java.lang.Object

org.apache.hadoop.yarn.server.resourcemanager.recovery.records.Epoch

Direct Known Subclasses:

EpochPBImpl

@Private
@Unstable
public abstract class Epoch
extends java.lang.Object

The epoch information of RM for work-preserving restart. Epoch is incremented each time RM restart. It's used for assuring uniqueness of ContainerId.

Constructor Summary

Constructors

Constructor	Description
Epoch()

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object obj)
abstract long	getEpoch()
abstract org.apache.hadoop.yarn.proto.YarnServerResourceManagerRecoveryProtos.EpochProto	getProto()
int	hashCode()
static Epoch	newInstance(long sequenceNumber)
abstract void	setEpoch(long sequenceNumber)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Epoch

public Epoch()

Method Detail

newInstance

public static Epoch newInstance(long sequenceNumber)

getEpoch

public abstract long getEpoch()

setEpoch

public abstract void setEpoch(long sequenceNumber)

getProto

public abstract org.apache.hadoop.yarn.proto.YarnServerResourceManagerRecoveryProtos.EpochProto getProto()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object