All Classes (Apache Hadoop HDFS-RBF 3.4.1.200-dep-1000 API)

All Classes Interface Summary Class Summary Enum Summary Exception Summary
Class	Description
AbstractRouterRpcFairnessPolicyController	Base fairness policy that implements @RouterRpcFairnessPolicyController.
ActiveNamenodeResolver	Locates the most active NN for a given nameservice ID or blockpool ID.
AddMountAttributes	Add mount entry attributes to be used by Router admin.
AddMountTableEntriesRequest	API request for adding all mount table entries to the state store.
AddMountTableEntriesRequestPBImpl	Protobuf implementation of the state store API object addMountTableEntriesRequest.
AddMountTableEntriesResponse	API response for adding multiple mount table entries to the state store.
AddMountTableEntriesResponsePBImpl	Protobuf implementation of the state store API object addMountTableEntriesResponse.
AddMountTableEntryRequest	API request for adding a mount table entry to the state store.
AddMountTableEntryRequestPBImpl	Protobuf implementation of the state store API object AddMountTableEntryRequest.
AddMountTableEntryResponse	API response for adding a mount table entry to the state store.
AddMountTableEntryResponsePBImpl	Protobuf implementation of the state store API object AddMountTableEntryResponse.
AvailableSpaceResolver	Order the destinations based on available space.
BaseRecord	Abstract base of a data record in the StateStore.
CachedRecordStore<R extends BaseRecord>	Record store that takes care of caching the records in memory.
ConnectionContext	Context to track a connection in a `ConnectionPool`.
ConnectionManager	Implements a pool of connections for the `Router` to be able to open many connections to many Namenodes.
ConnectionNullException	Exception when can not get a non-null connection.
ConnectionPool	Maintains a pool of connections for each User (including tokens) + NN.
ConnectionPoolId	Identifier for a connection for a user to a namenode.
ConsistentHashRing	Consistent hash ring to distribute items across nodes (locations).
DestinationOrder	Order of the destinations when we have multiple of them.
DFSRouter	Tool to start the `Router` for Router-based federation.
DisabledNameservice	Data record indicating a specific name service ID has been disabled and is no longer valid.
DisabledNameservicePBImpl	Protobuf implementation of the `DisabledNameservice` record.
DisabledNameserviceStore	State store record to track disabled name services.
DisabledNameserviceStoreImpl	Implementation of `DisabledNameserviceStore`.
DisableNameserviceRequest	API request for disabling a name service and updating its state in the State Store.
DisableNameserviceRequestPBImpl	Protobuf implementation of the state store API object DisableNameserviceRequest.
DisableNameserviceResponse	API response for disabling a name service and updating its state in the State Store.
DisableNameserviceResponsePBImpl	Protobuf implementation of the state store API object `DisableNameserviceResponse`.
DistributedSQLCounter	Distributed counter that relies on a SQL database to synchronize between multiple clients.
EnableNameserviceRequest	API request for enabling a name service and updating its state in the State Store.
EnableNameserviceRequestPBImpl	Protobuf implementation of the state store API object EnableNameserviceRequest.
EnableNameserviceResponse	API response for enabling a name service and updating its state in the State Store.
EnableNameserviceResponsePBImpl	Protobuf implementation of the state store API object EnableNameserviceResponse.
EnterSafeModeRequest	API request for the Router entering safe mode state and updating its state in State Store.
EnterSafeModeRequestPBImpl	Protobuf implementation of the state store API object EnterSafeModeRequest.
EnterSafeModeResponse	API response for the Router entering safe mode state and updating its state in State Store.
EnterSafeModeResponsePBImpl	Protobuf implementation of the state store API object EnterSafeModeResponse.
ErasureCoding	Module that implements all the RPC calls in `ClientProtocol` related to Erasure Coding in the `RouterRpcServer`.
FederationConnectionId
FederationMBean	JMX interface for the federation statistics.
FederationNamenodeContext	Interface for a discovered NN and its current server endpoints.
FederationNamenodeServiceState	Namenode state in the federation.
FederationNamespaceInfo	Represents information about a single nameservice/namespace in a federated HDFS cluster.
FederationProtocolPBTranslator<P extends org.apache.hadoop.thirdparty.protobuf.GeneratedMessageV3,B extends org.apache.hadoop.thirdparty.protobuf.Message.Builder,T extends org.apache.hadoop.thirdparty.protobuf.MessageOrBuilder>	Helper class for setting/getting data elements in an object backed by a protobuf implementation.
FederationRPCMBean	JMX interface for the RPC server.
FederationRPCMetrics	Implementation of the RPC metrics collector.
FederationRPCPerformanceMonitor	Customizable RPC performance monitor.
FederationUtil	Utilities for managing HDFS federation.
FileSubclusterResolver	Interface to map a file path in the global name space to a specific subcluster and path in an HDFS name space.
GetDestinationRequest	API request for getting the destination subcluster of a file.
GetDestinationRequestPBImpl	Protobuf implementation of the state store API object GetDestinationRequest.
GetDestinationResponse	API response for getting the destination subcluster of a file.
GetDestinationResponsePBImpl	Protobuf implementation of the state store API object GetDestinationResponse.
GetDisabledNameservicesRequest	API request for getting the disabled name services.
GetDisabledNameservicesRequestPBImpl	Protobuf implementation of the state store API object GetDisabledNameservicesRequest.
GetDisabledNameservicesResponse	API response for getting the disabled nameservices in the state store.
GetDisabledNameservicesResponsePBImpl	Protobuf implementation of the state store API object GetDisabledNameservicesResponse.
GetMountTableEntriesRequest	API request for listing mount table entries present in the state store.
GetMountTableEntriesRequestPBImpl	Protobuf implementation of the state store API object GetMountTableEntriesRequest.
GetMountTableEntriesResponse	API response for listing mount table entries present in the state store.
GetMountTableEntriesResponsePBImpl	Protobuf implementation of the state store API object GetMountTableEntriesResponse.
GetNamenodeRegistrationsRequest	API request for listing namenode registrations present in the state store.
GetNamenodeRegistrationsRequestPBImpl	Protobuf implementation of the state store API object GetNamenodeRegistrationsRequest.
GetNamenodeRegistrationsResponse	API response for listing namenode registrations present in the state store.
GetNamenodeRegistrationsResponsePBImpl	Protobuf implementation of the state store API object GetNamenodeRegistrationsResponse.
GetNamespaceInfoRequest	API response for listing HDFS namespaces present in the state store.
GetNamespaceInfoRequestPBImpl	Protobuf implementation of the state store API object GetNamespaceInfoRequest.
GetNamespaceInfoResponse	API response for listing HDFS namespaces present in the state store.
GetNamespaceInfoResponsePBImpl	Protobuf implementation of the state store API object GetNamespaceInfoResponse.
GetRouterRegistrationRequest	API request for retrieving a single router registration present in the state store.
GetRouterRegistrationRequestPBImpl	Protobuf implementation of the state store API object GetRouterRegistrationRequest.
GetRouterRegistrationResponse	API response for retrieving a single router registration present in the state store.
GetRouterRegistrationResponsePBImpl	Protobuf implementation of the state store API object GetRouterRegistrationResponse.
GetRouterRegistrationsRequest	API request for retrieving an all non-expired router registrations present in the state store.
GetRouterRegistrationsRequestPBImpl	Protobuf implementation of the state store API object GetRouterRegistrationsRequest.
GetRouterRegistrationsResponse	API response for retrieving a all non-expired router registrations present in the state store.
GetRouterRegistrationsResponsePBImpl	Protobuf implementation of the state store API object GetRouterRegistrationsResponse.
GetSafeModeRequest	API request for verifying if current Router state is safe mode.
GetSafeModeRequestPBImpl	Protobuf implementation of the state store API object GetSafeModeRequest.
GetSafeModeResponse	API response for verifying if current Router state is safe mode.
GetSafeModeResponsePBImpl	Protobuf implementation of the state store API object GetSafeModeResponse.
HashFirstResolver	Variation of HashResolver that only uses the first level of the path.
HashResolver	Order the destinations based on consistent hashing.
IsRouterActiveServlet	Detect if the Router is active and ready to serve requests.
LeaveSafeModeRequest	API request for the Router leaving safe mode state and updating its state in State Store.
LeaveSafeModeRequestPBImpl	Protobuf implementation of the state store API object LeaveSafeModeRequest.
LeaveSafeModeResponse	API response for the Router leaving safe mode state and updating its state in State Store.
LeaveSafeModeResponsePBImpl	Protobuf implementation of the state store API object LeaveSafeModeResponse.
LocalResolver	The local subcluster (where the writer is) should be tried first.
MembershipNamenodeResolver	Implements a cached lookup of the most recently active namenode for a particular nameservice.
MembershipState	Data schema for storing NN registration information in the `StateStoreService`.
MembershipStatePBImpl	Protobuf implementation of the MembershipState record.
MembershipStats	Data schema for storing NN stats in the `StateStoreService`.
MembershipStatsPBImpl	Protobuf implementation of the MembershipStats record.
MembershipStore	Management API for NameNode registrations stored in `MembershipState` records.
MembershipStoreImpl	Implementation of the `MembershipStore` State Store API.
MountTable	Data schema for `MountTableStore` data stored in the `StateStoreService`.
MountTableManager	Manage a mount table.
MountTablePBImpl	Protobuf implementation of the MountTable record.
MountTableProcedure	Update mount table.
MountTableRefresherService	This service is invoked from `MountTableStore` when there is change in mount table entries and it updates mount table entry cache on local router as well as on all remote routers.
MountTableRefresherThread	Base class for updating mount table cache on all the router.
MountTableResolver	Mount table to map between global paths and remote locations.
MountTableStore	Management API for the HDFS mount table information stored in `MountTable` records.
MountTableStoreImpl	Implementation of the `MountTableStore` state store API.
MultipleDestinationMountTableResolver	Mount table resolver that supports multiple locations for each mount entry.
NamenodeBeanMetrics	Expose the Namenode metrics as the Router was one.
NamenodeHeartbeatRequest	API request for registering a namenode with the state store.
NamenodeHeartbeatRequestPBImpl	Protobuf implementation of the state store API object NamenodeHeartbeatRequest.
NamenodeHeartbeatResponse	API response for registering a namenode with the state store.
NamenodeHeartbeatResponsePBImpl	Protobuf implementation of the state store API object NamenodeHeartbeatResponse.
NamenodeHeartbeatService	The `Router` periodically checks the state of a Namenode (usually on the same server) and reports their high availability (HA) state and load/space status to the `StateStoreService` .
NamenodePriorityComparator	Compares NNs in the same namespace and prioritizes by their status.
NamenodeStatusReport	Status of the namenode.
NameserviceManager	Interface for enable/disable name service.
NameserviceRPCMBean	JMX interface for the RPC server of Nameservice.
NameserviceRPCMetrics	Implementation of the Nameservice RPC metrics collector.
NoLocationException	This exception is thrown when can not get any mount point for the input path.
NoNamenodesAvailableException	Exception when no namenodes are available.
NoRouterRpcFairnessPolicyController	A pass through fairness policy that implements `RouterRpcFairnessPolicyController` and allows any number of handlers to connect to any specific downstream name service.
NullStateStoreMetrics	Implementation of the State Store metrics which does not do anything.
OrderedResolver	Policy that decides which should be the first location accessed given multiple destinations.
PathLocation	A map of the properties and target destinations (name space + path) for a path in the global/federated name space.
PBRecord	A record implementation using Protobuf.
PeriodicService	Service to periodically execute a runnable.
PoolAlignmentContext	An alignment context shared by all connections in a `ConnectionPool`.
Query<T extends BaseRecord>	Check if a record matches a query.
QueryResult<T extends BaseRecord>	Encapsulates a state store query result that includes a set of records and a time stamp for the result.
Quota	Module that implements the quota relevant RPC calls `ClientProtocol.setQuota(String, long, long, StorageType)` and `ClientProtocol.getQuotaUsage(String)` in the `RouterRpcServer`.
RandomResolver	Order the destinations randomly.
RBFConfigKeys	Config fields for router-based hdfs federation.
RBFMetrics	Implementation of the Router metrics collector.
RecordStore<R extends BaseRecord>	Store records in the State Store.
RefreshFairnessPolicyControllerHandler
RefreshMountTableEntriesRequest	API request for refreshing mount table cached entries from state store.
RefreshMountTableEntriesRequestPBImpl	Protobuf implementation of the state store API object RefreshMountTableEntriesRequest.
RefreshMountTableEntriesResponse	API response for refreshing mount table entries cache from state store.
RefreshMountTableEntriesResponsePBImpl	Protobuf implementation of the state store API object RefreshMountTableEntriesResponse.
RefreshSuperUserGroupsConfigurationRequest	API request for refreshing super user groups on router.
RefreshSuperUserGroupsConfigurationRequestPBImpl	Protobuf implementation of the state store API object RefreshSuperUserGroupsConfigurationRequest.
RefreshSuperUserGroupsConfigurationResponse	API response for refreshing super user groups on router.
RefreshSuperUserGroupsConfigurationResponsePBImpl	Protobuf implementation of the state store API object RefreshSuperUserGroupsConfigurationResponse.
RemoteLocation	A location in a remote namespace consisting of a nameservice ID and a HDFS path (destination).
RemoteLocationContext	Base class for objects that are unique to a namespace.
RemoteMethod	Determines the remote client protocol method and the parameter list for a specific location.
RemoteParam	A dynamically assignable parameter that is location-specific.
RemoteResult<T extends RemoteLocationContext,R>	Result from a remote location.
RemoveMountTableEntryRequest	API request for removing a mount table path present in the state store.
RemoveMountTableEntryRequestPBImpl	Protobuf implementation of the state store API object RemoveMountTableEntryRequest.
RemoveMountTableEntryResponse	API response for removing a mount table path present in the state store.
RemoveMountTableEntryResponsePBImpl	Protobuf implementation of the state store API object RemoveMountTableEntryResponse.
Router	Router that provides a unified view of multiple federated HDFS clusters.
RouterAdmin	This class provides some Federation administrative access shell commands.
RouterAdminProtocol	Protocol used by routeradmin to communicate with statestore.
RouterAdminProtocolPB	Protocol that a clients use to communicate with the NameNode.
RouterAdminProtocolServerSideTranslatorPB	This class is used on the server side.
RouterAdminProtocolTranslatorPB	This class forwards RouterAdminProtocol calls as RPC calls to the RouterAdmin server while translating from the parameter types used in RouterAdminProtocol to the new PB types.
RouterAdminServer	This class is responsible for handling all the Admin calls to the HDFS router.
RouterCacheAdmin	Module that implements all the RPC calls in `ClientProtocol` related to Cache Admin in the `RouterRpcServer`.
RouterClient	Client to connect to the `Router` via the admin protocol.
RouterClientMetrics	This class is for maintaining the various Router Client activity statistics and publishing them through the metrics interfaces.
RouterClientProtocol	Module that implements all the RPC calls in `ClientProtocol` in the `RouterRpcServer`.
RouterDistCpProcedure	Copy data through distcp in router-based federation cluster.
RouterFedBalance	Balance data in router-based federation cluster.
RouterFederationRename	Rename across router federation namespaces based on federation balance.
RouterFederationRename.RouterRenameOption
RouterFsck	Wrapper for the Router to offer the Namenode FSCK.
RouterFsckServlet	This class is used in Namesystem's web server to do fsck on namenode.
RouterGenericManager	Generic methods for managing Router.
RouterHeartbeatRequest	API request for registering a router with the state store.
RouterHeartbeatRequestPBImpl	Protobuf implementation of the state store API object RouterHeartbeatRequest.
RouterHeartbeatResponse	API response for registering a router with the state store.
RouterHeartbeatResponsePBImpl	Protobuf implementation of the state store API object RouterHeartbeatResponse.
RouterHeartbeatService	Service to periodically update the Router current state in the State Store.
RouterHttpServer	Web interface for the `Router`.
RouterMBean	JMX interface for the router specific metrics.
RouterMetrics	This class is for maintaining the various Router activity statistics and publishing them through the metrics interfaces.
RouterMetricsService	Service to manage the metrics of the Router.
RouterNamenodeProtocol	Module that implements all the RPC calls in `NamenodeProtocol` in the `RouterRpcServer`.
RouterNetworkTopologyServlet	A servlet to print out the network topology from router.
RouterPermissionChecker	Class that helps in checking permissions in Router-based federation.
RouterPolicyProvider	`HDFSPolicyProvider` for RBF protocols.
RouterQuotaManager	Router quota manager in Router.
RouterQuotaUpdateService	Service to periodically update the `RouterQuotaUsage` cached information in the `Router`.
RouterQuotaUsage	The subclass of `QuotaUsage` used in Router-based federation.
RouterQuotaUsage.Builder	Build the instance based on the builder.
RouterResolveException	Thrown by FileSubclusterResolver when a path can't be resolved.
RouterResolver<K,V>	The order resolver that depends upon the Router service.
RouterRpcClient	A client proxy for Router to NN communication using the NN ClientProtocol.
RouterRpcFairnessConstants
RouterRpcFairnessPolicyController	Interface to define handlers assignment for specific name services.
RouterRpcMonitor	Metrics and monitoring interface for the router RPC server.
RouterRpcServer	This class is responsible for handling all of the RPC calls to the It is created, started, and stopped by `Router`.
RouterSafemodeService	Service to periodically check if the `StateStoreService` cached information in the `Router` is up to date.
RouterSecurityManager	Manager to hold underlying delegation token secret manager implementations.
RouterServiceState	States of the Router.
RouterSnapshot	Module that implements all the RPC calls related to snapshots in `ClientProtocol` in the `RouterRpcServer`.
RouterState	Entry to log the state of a `Router` in the `StateStoreService`.
RouterStateManager	Interface of managing the Router state.
RouterStatePBImpl	Protobuf implementation of the RouterState record.
RouterStoragePolicy	Module that implements all the RPC calls in `ClientProtocol` related to Storage Policy in the `RouterRpcServer`.
RouterStore	Management API for `RouterState` records in the state store.
RouterStoreImpl	Implementation of the `RouterStore` state store API.
RouterUserProtocol	Module that implements all the RPC calls in `RefreshUserMappingsProtocol` `GetUserMappingsProtocol` in the `RouterRpcServer`.
RouterWebHdfsMethods	WebHDFS Router implementation.
SQLConnectionFactory	Interface to provide SQL connections to the `SQLDelegationTokenSecretManagerImpl`.
SQLDelegationTokenSecretManagerImpl	An implementation of `SQLDelegationTokenSecretManager` that persists TokenIdentifiers and DelegationKeys in a SQL database.
SQLSecretManagerRetriableHandler	Interface to handle retries when `SQLDelegationTokenSecretManagerImpl` throws expected errors.
SQLSecretManagerRetriableHandler.SQLCommand<T>
SQLSecretManagerRetriableHandler.SQLCommandVoid
StateStoreBaseImpl	Base implementation of a State Store driver.
StateStoreCache	Interface for a cached copy of the State Store.
StateStoreCacheUpdateService	Service to periodically update the `StateStoreService` cached information in the `Router`.
StateStoreConnectionMonitorService	Service to periodically monitor the connection of the StateStore `StateStoreService` data store and to re-open the connection to the data store if required.
StateStoreDriver	Driver class for an implementation of a `StateStoreService` provider.
StateStoreFileBaseImpl	`StateStoreDriver` implementation based on files.
StateStoreFileImpl	StateStoreDriver implementation based on a local file.
StateStoreFileSystemImpl	`StateStoreDriver` implementation based on a filesystem.
StateStoreMBean	JMX interface for the State Store metrics.
StateStoreMetrics	Implementations of the JMX interface for the State Store metrics.
StateStoreMySQLImpl	StateStoreDriver implementation based on MySQL.
StateStoreOperationResult	State store operation result with list of failed records.
StateStoreRecordOperations	Operations for a driver to manage records in the State Store.
StateStoreSerializableImpl	State Store driver that stores a serialization of the records.
StateStoreSerializer	Serializer to store and retrieve data in the State Store.
StateStoreSerializerPBImpl	Protobuf implementation of the State Store serializer.
StateStoreService	A service to initialize a `StateStoreDriver` and maintain the connection to the data store.
StateStoreUnavailableException	Thrown when the state store is not reachable or available.
StateStoreUtils	Set of utility functions used to work with the State Store.
StateStoreVersion	Entry to track the version of the State Store data stored in the State Store by a Router.
StateStoreVersionPBImpl	Protobuf implementation of the StateStoreVersion record.
StateStoreZooKeeperImpl	`StateStoreDriver` driver implementation that uses ZooKeeper as a backend.
StaticRouterRpcFairnessPolicyController	Static fairness policy extending @AbstractRouterRpcFairnessPolicyController and fetching handlers from configuration for all available name services.
SubClusterTimeoutException	Exception when timing out waiting for the reply of a subcluster.
UpdateMountTableEntryRequest	API request for updating the destination of an existing mount point in the state store.
UpdateMountTableEntryRequestPBImpl	Protobuf implementation of the state store API object UpdateMountTableEntryRequest.
UpdateMountTableEntryResponse	API response for updating the destination of an existing mount point in the state store.
UpdateMountTableEntryResponsePBImpl	Protobuf implementation of the state store API object UpdateMountTableEntryResponse.
UpdateNamenodeRegistrationRequest	API request for overriding an existing namenode registration in the state store.
UpdateNamenodeRegistrationRequestPBImpl	Protobuf implementation of the state store API object OverrideNamenodeRegistrationRequest.
UpdateNamenodeRegistrationResponse	API response for overriding an existing namenode registration in the state store.
UpdateNamenodeRegistrationResponsePBImpl	Protobuf implementation of the state store API object OverrideNamenodeRegistrationResponse.
ZKDelegationTokenSecretManagerImpl	Zookeeper based router delegation token store implementation.