org.apache.hadoop.hbase.coordination (Apache HBase 1.4.11 API)

Interface Summary
Interface	Description
CloseRegionCoordination	Coordinated operations for close region handlers.
CloseRegionCoordination.CloseRegionDetails	Marker interface for region closing tasks.
OpenRegionCoordination	Cocoordination operations for opening regions.
OpenRegionCoordination.OpenRegionDetails	Interface for region opening tasks.
RegionMergeCoordination	Coordination operations for region merge transaction.
RegionMergeCoordination.RegionMergeDetails	Dummy interface for region merge transaction details.
SplitLogManagerCoordination	Coordination for SplitLogManager.
SplitLogWorkerCoordination	Coordinated operations for `SplitLogWorker` and `WALSplitterHandler` Important methods for SplitLogWorker: `SplitLogWorkerCoordination.isReady()` called from `SplitLogWorker.run()` to check whether the coordination is ready to supply the tasks `SplitLogWorkerCoordination.taskLoop()` loop for new tasks until the worker is stopped `SplitLogWorkerCoordination.isStop()` a flag indicates whether worker should finish `SplitLogWorkerCoordination.registerListener()` called from `SplitLogWorker.run()` and could register listener for external changes in coordination (if required) `SplitLogWorkerCoordination.endTask(SplitLogTask, AtomicLong, SplitTaskDetails)` notify coordination engine that
SplitLogWorkerCoordination.SplitTaskDetails	Interface for log-split tasks Used to carry implementation details in encapsulated way through Handlers to the coordination API.
SplitTransactionCoordination	Coordination operations for split transaction.
SplitTransactionCoordination.SplitTransactionDetails	Dummy interface for split transaction details.
ZKSplitLogManagerCoordination.TaskFinisher	`SplitLogManager` can use objects implementing this interface to finish off a partially done task by `SplitLogWorker`.

Class Summary
Class	Description
BaseCoordinatedStateManager	Base class for `CoordinatedStateManager` implementations.
SplitLogManagerCoordination.SplitLogManagerDetails	Detail class that shares data between coordination and split log manager
ZkCloseRegionCoordination	ZK-based implementation of `CloseRegionCoordination`.
ZkCloseRegionCoordination.ZkCloseRegionDetails	ZK-based implementation.
ZkCoordinatedStateManager	ZooKeeper-based implementation of `CoordinatedStateManager`.
ZkOpenRegionCoordination	ZK-based implementation of `OpenRegionCoordination`.
ZkOpenRegionCoordination.ZkOpenRegionDetails	ZK-based implementation.
ZkRegionMergeCoordination
ZkRegionMergeCoordination.ZkRegionMergeDetails	ZK-based implementation.
ZKSplitLogManagerCoordination	ZooKeeper based implementation of `SplitLogManagerCoordination`
ZKSplitLogManagerCoordination.ZkSplitLogManagerDetails
ZkSplitLogWorkerCoordination	ZooKeeper based implementation of `SplitLogWorkerCoordination` It listen for changes in ZooKeeper and
ZkSplitLogWorkerCoordination.ZkSplitTaskDetails	When ZK-based implementation wants to complete the task, it needs to know task znode and current znode cversion (needed for subsequent update operation).
ZKSplitTransactionCoordination
ZKSplitTransactionCoordination.ZkSplitTransactionDetails	ZK-based implementation.

Enum Summary
Enum Description

ZKSplitLogManagerCoordination.TaskFinisher.Status
status that can be returned finish()

Package org.apache.hadoop.hbase.coordination