Package org.apache.hadoop.hbase.quotas

Interface Summary

Interface	Description
FileArchiverNotifier	Interface allowing various implementations of tracking files that have recently been archived to allow for the Master to notice changes to snapshot sizes for space quotas.
FileArchiverNotifierFactory	Factory class to create FileArchiverNotifier instances.
MasterQuotaManager.SetQuotaOperations	Encapsulates CRUD quota operations for some subject.
OperationQuota	Interface that allows to check the quota available for an operation.
QuotaCache.Fetcher<Key,Value>
QuotaLimiter	Internal interface used to interact with the user/table quota.
QuotaSnapshotStore<T>	A common interface for computing and storing space quota observance/violation for entities.
QuotaTableUtil.NamespaceQuotasVisitor
QuotaTableUtil.QuotasVisitor
QuotaTableUtil.RegionServerQuotasVisitor
QuotaTableUtil.TableQuotasVisitor
QuotaTableUtil.UserQuotasVisitor
QuotaUtil.KeyFromRow<T>
RegionSize	Interface that encapsulates optionally sending a Region's size to the master.
RegionSizeStore	An interface for concurrently storing and updating the size of a Region.
SpaceQuotaSnapshotNotifier	An interface which abstract away the action taken to enable or disable a space quota violation policy across the HBase cluster.
SpaceQuotaSnapshotView	A point-in-time view of a space quota on a table, read only.
SpaceQuotaSnapshotView.SpaceQuotaStatusView	Encapsulates the state of a quota on a table.
SpaceViolationPolicyEnforcement	RegionServer implementation of SpaceViolationPolicy.

Class Summary

Class	Description
ActivePolicyEnforcement	A class to ease dealing with tables that have and do not have violation policies being enforced.
AverageIntervalRateLimiter	This limiter will refill resources at every TimeUnit/resources interval.
DefaultOperationQuota
ExceedOperationQuota
FileArchiverNotifierFactoryImpl	A factory for getting instances of FileArchiverNotifier.
FileArchiverNotifierFactoryImpl.CacheKey
FileArchiverNotifierImpl	Tracks file archiving and updates the hbase quota table.
FileArchiverNotifierImpl.SnapshotWithSize	A struct encapsulating the name of a snapshot and its "size" on the filesystem.
FileArchiverNotifierImpl.StoreFileReference	A reference to a collection of files in the archive directory for a single region.
FileSystemUtilizationChore	A chore which computes the size of each HRegion on the FileSystem hosted by the given HRegionServer.
FixedIntervalRateLimiter	With this limiter resources will be refilled only after a fixed interval of time.
GlobalQuotaSettings	An object which captures all quotas types (throttle or space) for a subject (user, table, or namespace).
GlobalQuotaSettingsImpl	Implementation of GlobalQuotaSettings to hide the Protobuf messages we use internally.
MasterQuotaManager	Master Quota Manager.
MasterQuotaManager.NamedLock<T>
MasterQuotaManager.SizeSnapshotWithTimestamp	Holds the size of a region at the given time, millis since the epoch.
MasterQuotasObserver	An observer to automatically delete quotas when a table/namespace is deleted.
NamespaceQuotaSnapshotStore	QuotaSnapshotStore implementation for namespaces.
NoopOperationQuota	Noop operation quota returned when no quota is associated to the user/table
NoopQuotaLimiter	Noop quota limiter returned when no limiter is associated to the user/table
NoOpRegionSizeStore	A RegionSizeStore implementation that stores nothing.
QuotaCache	Cache that keeps track of the quota settings for the users and tables that are interacting with it.
QuotaFilter	Filter to use to filter the QuotaRetriever results.
QuotaLimiterFactory
QuotaObserverChore	Reads the currently received Region filesystem-space use reports and acts on those which violate a defined quota.
QuotaObserverChore.TablesWithQuotas	A container which encapsulates the tables that have either a table quota or are contained in a namespace which have a namespace quota.
QuotaRetriever	Scanner to iterate over the quota settings.
QuotaSettings
QuotaSettingsFactory
QuotaSettingsFactory.QuotaGlobalsSettingsBypass
QuotaState	In-Memory state of table or namespace quotas
QuotaTableUtil	Helper class to interact with the quota table.
QuotaUtil	Helper class to interact with the quota table
RateLimiter	Simple rate limiter.
RegionServerRpcQuotaManager	Region Server Quota Manager.
RegionServerSpaceQuotaManager	A manager for filesystem space quotas in the RegionServer.
RegionSizeImpl	An object encapsulating a Region's size and whether it's been reported to the master since the value last changed.
RegionSizeReportingChore	A Chore which sends the region size reports on this RegionServer to the Master.
RegionSizeStoreFactory	A factory class for creating implementations of RegionSizeStore.
RegionSizeStoreImpl	A RegionSizeStore implementation backed by a ConcurrentHashMap.
RpcThrottleStorage	ZK based rpc throttle storage.
SnapshotQuotaObserverChore	A Master-invoked Chore that computes the size of each snapshot which was created from a table which has a space quota.
SpaceLimitSettings	A QuotaSettings implementation for configuring filesystem-use quotas.
SpaceQuotaRefresherChore	A ScheduledChore which periodically updates the RegionServerSpaceQuotaManager with information from the hbase:quota.
SpaceQuotaSnapshot	A point-in-time view of a space quota on a table.
SpaceQuotaSnapshot.SpaceQuotaStatus	Encapsulates the state of a quota on a table.
SpaceQuotaSnapshotNotifierFactory	Factory for creating SpaceQuotaSnapshotNotifier implementations.
SpaceViolationPolicyEnforcementFactory	A factory class for instantiating SpaceViolationPolicyEnforcement instances.
TableQuotaSnapshotStore	QuotaSnapshotStore for tables.
TableSpaceQuotaSnapshotNotifier	A SpaceQuotaSnapshotNotifier which uses the hbase:quota table.
ThrottleSettings
TimeBasedLimiter	Simple time based limiter that checks the quota Throttle
UserQuotaState	In-Memory state of the user quotas

Enum Summary

Enum	Description
OperationQuota.OperationType
QuotaScope	Describe the Scope of the quota rules.
QuotaType	Describe the Quota Type.
RpcThrottlingException.Type
SpaceViolationPolicy	Enumeration that represents the action HBase will take when a space quota is violated.
ThrottleType	Describe the Throttle Type.
ThrottlingException.Type

Exception Summary

Exception	Description
FileArchiverNotifierImpl.QuotaSnapshotSizeSerializationException	An Exception thrown when SnapshotSize updates to hbase:quota fail to be written.
QuotaExceededException	Generic quota exceeded exception
RpcThrottlingException	Describe the throttling result.
SpaceLimitingException	An Exception that is thrown when a space quota is in violation.
ThrottlingException	Deprecated replaced by RpcThrottlingException since hbase-2.0.0.