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

@InterfaceAudience.Private
@InterfaceStability.Unstable
public abstract class Epoch
extends 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

Epoch()

Method Summary

boolean	equals(Object obj)
abstract long	getEpoch()
abstract YarnServerResourceManagerRecoveryProtos.EpochProto	getProto()
int	hashCode()
static Epoch	newInstance(long sequenceNumber)
abstract void	setEpoch(long sequenceNumber)
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 YarnServerResourceManagerRecoveryProtos.EpochProto getProto()

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object