org.apache.hadoop.mapreduce.v2.hs
Class HistoryServerFileSystemStateStoreService

java.lang.Object
  org.apache.hadoop.service.AbstractService
      org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreService
          org.apache.hadoop.mapreduce.v2.hs.HistoryServerFileSystemStateStoreService

All Implemented Interfaces:

Closeable, org.apache.hadoop.service.Service

@InterfaceAudience.Private
@InterfaceStability.Unstable
public class HistoryServerFileSystemStateStoreService
extends HistoryServerStateStoreService

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreService

HistoryServerStateStoreService.HistoryServerState

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

static org.apache.commons.logging.Log

LOG

Constructor Summary

HistoryServerFileSystemStateStoreService()

Method Summary

protected void	closeStorage() Implementation-specific shutdown.
protected void	initStorage(org.apache.hadoop.conf.Configuration conf) Implementation-specific initialization.
HistoryServerStateStoreService.HistoryServerState	loadState() Load the history server state from the state storage.
void	removeToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId) Blocking method to remove a delegation token from the state storage.
void	removeTokenMasterKey(org.apache.hadoop.security.token.delegation.DelegationKey key) Blocking method to remove a delegation token master key.
protected void	startStorage() Implementation-specific startup.
void	storeToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId, Long renewDate) Blocking method to store a delegation token along with the current token sequence number to the state storage.
void	storeTokenMasterKey(org.apache.hadoop.security.token.delegation.DelegationKey key) Blocking method to store a delegation token master key.
void	updateToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId, Long renewDate) Blocking method to update the expiration of a delegation token in the state storage.

Methods inherited from class org.apache.hadoop.mapreduce.v2.hs.HistoryServerStateStoreService

serviceInit, serviceStart, serviceStop

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

HistoryServerFileSystemStateStoreService

public HistoryServerFileSystemStateStoreService()

Method Detail

initStorage

protected void initStorage(org.apache.hadoop.conf.Configuration conf)
                    throws IOException

Description copied from class: HistoryServerStateStoreService

Implementation-specific initialization.

Specified by:

initStorage in class HistoryServerStateStoreService

Parameters:

conf - the configuration

Throws:

IOException

startStorage

protected void startStorage()
                     throws IOException

Description copied from class: HistoryServerStateStoreService

Implementation-specific startup.

Specified by:

startStorage in class HistoryServerStateStoreService

Throws:

IOException

closeStorage

protected void closeStorage()
                     throws IOException

Description copied from class: HistoryServerStateStoreService

Implementation-specific shutdown.

Specified by:

closeStorage in class HistoryServerStateStoreService

Throws:

IOException

loadState

public HistoryServerStateStoreService.HistoryServerState loadState()
                                                            throws IOException

Description copied from class: HistoryServerStateStoreService

Load the history server state from the state storage.

Specified by:

loadState in class HistoryServerStateStoreService

Throws:

IOException

storeToken

public void storeToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId,
                       Long renewDate)
                throws IOException

Description copied from class: HistoryServerStateStoreService

Blocking method to store a delegation token along with the current token sequence number to the state storage. Implementations must not return from this method until the token has been committed to the state store.

Specified by:

storeToken in class HistoryServerStateStoreService

Parameters:

tokenId - the token to store

renewDate - the token renewal deadline

Throws:

IOException

updateToken

public void updateToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId,
                        Long renewDate)
                 throws IOException

Description copied from class: HistoryServerStateStoreService

Blocking method to update the expiration of a delegation token in the state storage. Implementations must not return from this method until the expiration date of the token has been updated in the state store.

Specified by:

updateToken in class HistoryServerStateStoreService

Parameters:

tokenId - the token to update

renewDate - the new token renewal deadline

Throws:

IOException

removeToken

public void removeToken(org.apache.hadoop.mapreduce.v2.api.MRDelegationTokenIdentifier tokenId)
                 throws IOException

Description copied from class: HistoryServerStateStoreService

Blocking method to remove a delegation token from the state storage. Implementations must not return from this method until the token has been removed from the state store.

Specified by:

removeToken in class HistoryServerStateStoreService

Parameters:

tokenId - the token to remove

Throws:

IOException

storeTokenMasterKey

public void storeTokenMasterKey(org.apache.hadoop.security.token.delegation.DelegationKey key)
                         throws IOException

Description copied from class: HistoryServerStateStoreService

Blocking method to store a delegation token master key. Implementations must not return from this method until the key has been committed to the state store.

Specified by:

storeTokenMasterKey in class HistoryServerStateStoreService

Parameters:

key - the master key to store

Throws:

IOException

removeTokenMasterKey

public void removeTokenMasterKey(org.apache.hadoop.security.token.delegation.DelegationKey key)
                          throws IOException

Description copied from class: HistoryServerStateStoreService

Blocking method to remove a delegation token master key. Implementations must not return from this method until the key has been removed from the state store.

Specified by:

removeTokenMasterKey in class HistoryServerStateStoreService

Parameters:

key - the master key to remove

Throws:

IOException