类 org.apache.hadoop.hbase.executor.EventHandler
的使用

使用EventHandler的程序包

程序包	说明
org.apache.hadoop.hbase.executor
org.apache.hadoop.hbase.master.handler
org.apache.hadoop.hbase.master.snapshot
org.apache.hadoop.hbase.regionserver
org.apache.hadoop.hbase.regionserver.handler

org.apache.hadoop.hbase.executor中EventHandler的使用

返回EventHandler的org.apache.hadoop.hbase.executor中的方法

限定符和类型	方法和说明
EventHandler	EventHandler.prepare() Event handlers should do all the necessary checks in this method (rather than in the constructor, or in process()) so that the caller, which is mostly executed in the ipc context can fail fast.

参数类型为EventHandler的org.apache.hadoop.hbase.executor中的方法

限定符和类型	方法和说明
void	EventHandler.EventHandlerListener.afterProcess(EventHandler event) Called after any event is processed
void	EventHandler.EventHandlerListener.beforeProcess(EventHandler event) Called before any event is processed
void	ExecutorService.submit(EventHandler eh)

参数类型为EventHandler的org.apache.hadoop.hbase.executor中的构造器

构造器和说明
ExecutorService.RunningEventStatus(Thread t, EventHandler event)

org.apache.hadoop.hbase.master.handler中EventHandler的使用

org.apache.hadoop.hbase.master.handler中EventHandler的子类

限定符和类型	类和说明
class	ClosedRegionHandler Handles CLOSED region event on Master.
class	CreateTableHandler Handler to create a table.
class	DisableTableHandler Handler to run disable of a table.
class	DispatchMergingRegionHandler Handles MERGE regions request on master: move the regions together(on the same regionserver) and send MERGE RPC to regionserver.
class	EnableTableHandler Handler to run enable of a table.
class	OpenedRegionHandler Handles OPENED region event on Master.
class	TableEventHandler Base class for performing operations against tables.

org.apache.hadoop.hbase.master.snapshot中EventHandler的使用

org.apache.hadoop.hbase.master.snapshot中EventHandler的子类

限定符和类型	类和说明
class	CloneSnapshotHandler Handler to Clone a snapshot.
class	DisabledTableSnapshotHandler Take a snapshot of a disabled table.
class	EnabledTableSnapshotHandler Handle the master side of taking a snapshot of an online table, regardless of snapshot type.
class	RestoreSnapshotHandler Handler to Restore a snapshot.
class	TakeSnapshotHandler A handler for taking snapshots from the master.

org.apache.hadoop.hbase.regionserver中EventHandler的使用

org.apache.hadoop.hbase.regionserver中EventHandler的子类

限定符和类型	类和说明
class	CompactedHFilesDischargeHandler Event handler that handles the removal and archival of the compacted hfiles

org.apache.hadoop.hbase.regionserver.handler中EventHandler的使用

org.apache.hadoop.hbase.regionserver.handler中EventHandler的子类

限定符和类型	类和说明
class	CloseMetaHandler Handles closing of the root region on a region server.
class	CloseRegionHandler Handles closing of a region on a region server.
class	FinishRegionRecoveringHandler
class	OpenMetaHandler Handles opening of a meta region on a region server.
class	OpenPriorityRegionHandler Handles opening of a high priority region on a region server.
class	OpenRegionHandler Handles opening of a region on a region server.
class	ParallelSeekHandler Handler to seek storefiles in parallel.
class	RegionReplicaFlushHandler HBASE-11580: With the async wal approach (HBASE-11568), the edits are not persisted to wal in secondary region replicas.
class	WALSplitterHandler Handles log splitting a wal