org.apache.hadoop.mapreduce.security.token.delegation
Class DelegationTokenSecretManager

java.lang.Object
  org.apache.hadoop.security.token.SecretManager<TokenIdent>
      org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager<DelegationTokenIdentifier>
          org.apache.hadoop.mapreduce.security.token.delegation.DelegationTokenSecretManager

@InterfaceAudience.Private
@InterfaceStability.Unstable
public class DelegationTokenSecretManager
extends org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager<DelegationTokenIdentifier>

A MapReduce specific delegation token secret manager. The secret manager is responsible for generating and accepting the password for each token.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager

org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager.DelegationTokenInformation

Nested classes/interfaces inherited from class org.apache.hadoop.security.token.SecretManager

org.apache.hadoop.security.token.SecretManager.InvalidToken

Field Summary

Fields inherited from class org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager

allKeys, currentId, currentTokens, delegationTokenSequenceNumber, noInterruptsLock, running

Constructor Summary

DelegationTokenSecretManager(long delegationKeyUpdateInterval, long delegationTokenMaxLifetime, long delegationTokenRenewInterval, long delegationTokenRemoverScanInterval)
Create a secret manager

Method Summary

DelegationTokenIdentifier

createIdentifier()

Methods inherited from class org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager

addKey, cancelToken, createPassword, createSecretKey, getAllKeys, isRunning, logUpdateMasterKey, renewToken, retrievePassword, startThreads, stopThreads, verifyToken

Methods inherited from class org.apache.hadoop.security.token.SecretManager

checkAvailableForRead, createPassword, generateSecret

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegationTokenSecretManager

public DelegationTokenSecretManager(long delegationKeyUpdateInterval,
                                    long delegationTokenMaxLifetime,
                                    long delegationTokenRenewInterval,
                                    long delegationTokenRemoverScanInterval)

Create a secret manager

Parameters:

delegationKeyUpdateInterval - the number of seconds for rolling new secret keys.

delegationTokenMaxLifetime - the maximum lifetime of the delegation tokens

delegationTokenRenewInterval - how often the tokens must be renewed

delegationTokenRemoverScanInterval - how often the tokens are scanned for expired tokens

Method Detail

createIdentifier

public DelegationTokenIdentifier createIdentifier()

Specified by:

createIdentifier in class org.apache.hadoop.security.token.SecretManager<DelegationTokenIdentifier>