@LimitedPrivate({"HBase","HDFS","MapReduce"}) @Evolving

Package org.apache.hadoop.security.token.delegation

ZooKeeper secret manager for TokenIdentifiers and DelegationKeys.

Class Summary

Class	Description
AbstractDelegationTokenIdentifier
AbstractDelegationTokenSecretManager<TokenIdent extends AbstractDelegationTokenIdentifier>
AbstractDelegationTokenSecretManager.DelegationTokenInformation	Class to encapsulate a token's renew date and password.
AbstractDelegationTokenSelector<TokenIdent extends AbstractDelegationTokenIdentifier>	Look through tokens to find the first delegation token that matches the service and return it.
DelegationKey	Key used for generating and verifying delegation tokens
DelegationTokenLoadingCache<K,V>	Cache for delegation tokens that can handle high volume of tokens.
SQLDelegationTokenSecretManager<TokenIdent extends AbstractDelegationTokenIdentifier>	An implementation of AbstractDelegationTokenSecretManager that persists TokenIdentifiers and DelegationKeys in an existing SQL database.
ZKDelegationTokenSecretManager<TokenIdent extends AbstractDelegationTokenIdentifier>	An implementation of AbstractDelegationTokenSecretManager that persists TokenIdentifiers and DelegationKeys in Zookeeper.