Package org.apache.bookkeeper.meta

Classes for interacting with bookkeeper ledgers and ledger metadata.

Interface Summary

Interface	Description
LayoutManager	Layout manager for writing/reading/deleting ledger layout.
LedgerAuditorManager	Interface to handle the ledger auditor election.
LedgerIdGenerator	The interface for global unique ledger ID generation.
LedgerManager	LedgerManager takes responsibility of ledger management in client side.
LedgerManager.LedgerRangeIterator	Interface of the ledger meta range iterator from storage (e.g.
LedgerManagerFactory	A factory for creating ledger managers.
LedgerUnderreplicationManager	Interface for marking ledgers which need to be rereplicated.
MetadataBookieDriver	Driver to manage all the metadata managers required by a bookie server.
MetadataClientDriver	Driver to manage all the metadata managers required by a bookkeeper client.
MetadataClientDriver.SessionStateListener	State Listener on listening the metadata client session states.

Class Summary

Class	Description
AbstractHierarchicalLedgerManager	An abstract class for managing hierarchical ledgers.
AbstractZkLedgerManager	Abstract ledger manager based on zookeeper, which provides common methods such as query zk nodes.
AbstractZkLedgerManagerFactory	Abstract ledger manager factory based on zookeeper, which provides common methods such as format and validateAndNukeExistingCluster.
CleanupLedgerManager	A ledger manager that cleans up resources upon closing.
FlatLedgerManager	Manage all ledgers in a single zk node.
FlatLedgerManagerFactory	Deprecated. since 4.7.0.
HierarchicalLedgerManager	HierarchicalLedgerManager makes use of both LongHierarchicalLedgerManager and LegacyHierarchicalLedgerManager to extend the 31-bit ledger id range of the LegacyHierarchicalLedgerManager to that of the LongHierarchicalLedgerManager while remaining backwards-compatible with the legacy manager.
HierarchicalLedgerManagerFactory	Legacy Hierarchical Ledger Manager Factory.
LedgerLayout	This class encapsulates ledger layout information that is persistently stored in registration service.
LedgerManager.LedgerRange	Used to represent the Ledgers range returned from the current scan.
LedgerMetadataSerDe	Serialization and deserialization for LedgerMetadata.
LegacyHierarchicalLedgerManager	Hierarchical Ledger Manager which manages ledger meta in zookeeper using 2-level hierarchical znodes.
LegacyHierarchicalLedgerManagerFactory	Hierarchical Ledger Manager Factory.
LongHierarchicalLedgerManager	LongHierarchical Ledger Manager which manages ledger meta in zookeeper using 5-level hierarchical znodes.
LongHierarchicalLedgerManagerFactory	LongHierarchical Ledger Manager Factory.
LongZkLedgerIdGenerator	ZooKeeper based ledger id generator class, which using EPHEMERAL_SEQUENTIAL with (ledgerIdGenPath)/HOB-[high-32-bits]/ID- prefix to generate ledger id.
MetadataDrivers	A driver manager for managing a set of metadata drivers.
MetadataDrivers.MetadataBookieDriverInfo
MetadataDrivers.MetadataClientDriverInfo
MSLedgerManagerFactory	Deprecated. since 4.7.0
MSLedgerManagerFactory.MsLedgerManager
MSLedgerManagerFactory.SyncResult<T>
NullMetadataBookieDriver	A no-op implementation of MetadataBookieDriver.
NullMetadataBookieDriver.NullLayoutManager	A no-op implementation of LayoutManager.
NullMetadataBookieDriver.NullLedgerAuditorManager	A no-op implementation of LedgerAuditorManager.
NullMetadataBookieDriver.NullLedgerIdGenerator	A no-op implementation of LedgerIdGenerator.
NullMetadataBookieDriver.NullLedgerManager	A no-op implementation of LedgerManager.
NullMetadataBookieDriver.NullLedgerManagerFactory	A no-op implementation of LedgerManagerFactory.
NullMetadataBookieDriver.NullLedgerUnderreplicationManager	A no-op implementation of LedgerUnderreplicationManager.
NullMetadataBookieDriver.NullRegistrationManager	A no-op implementation of RegistrationManager.
UnderreplicatedLedger	UnderReplicated ledger representation info.
ZkLayoutManager	Provide utils for writing/reading/deleting layout in zookeeper.
ZkLedgerAuditorManager	ZK based implementation of LedgerAuditorManager.
ZkLedgerIdGenerator	ZooKeeper based ledger id generator class, which using EPHEMERAL_SEQUENTIAL with (ledgerIdGenPath)/ID- prefix to generate ledger id.
ZkLedgerUnderreplicationManager	ZooKeeper implementation of underreplication manager.

Enum Summary

Enum	Description
LedgerAuditorManager.AuditorEvent	Events that can be triggered by the LedgerAuditorManager.

Exception Summary

Exception	Description
LayoutManager.LedgerLayoutExistsException	The Ledger layout exists exception.