Package org.apache.hadoop.hbase.quotas

Interface Summary

Interface	Description
OperationQuota	Interface that allows to check the quota available for an operation.
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.
SpaceQuotaSnapshotNotifier	An interface which abstract away the action taken to enable or disable a space quota violation policy across the HBase cluster.
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
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.
MasterSpaceQuotaObserver	An observer to automatically delete space quotas when a table/namespace are deleted.
NamespaceQuotaSnapshotStore	QuotaSnapshotStore implementation for namespaces.
QuotaCache	Cache that keeps track of the quota settings for the users and tables that are interacting with it.
QuotaLimiterFactory
QuotaObserverChore	Reads the currently received Region filesystem-space use reports and acts on those which violate a defined quota.
QuotaState	In-Memory state of table or namespace quotas
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.
SnapshotQuotaObserverChore	A Master-invoked Chore that computes the size of each snapshot which was created from a table which has a space quota.
SpaceQuotaRefresherChore	A ScheduledChore which periodically updates the RegionServerSpaceQuotaManager with information from the hbase:quota.
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.
TimeBasedLimiter	Simple time based limiter that checks the quota Throttle
UserQuotaState	In-Memory state of the user quotas

Enum Summary

Enum	Description
OperationQuota.OperationType

Exception Summary

Exception	Description
SpaceLimitingException	An Exception that is thrown when a space quota is in violation.