| Package | Description | 
|---|---|
| org.apache.hadoop.hbase.executor | |
| org.apache.hadoop.hbase.master.snapshot | |
| org.apache.hadoop.hbase.regionserver | |
| org.apache.hadoop.hbase.regionserver.handler | 
| Modifier and Type | Field and Description | 
|---|---|
| (package private) EventHandler | ExecutorService.RunningEventStatus. event | 
| Modifier and Type | Field and Description | 
|---|---|
| (package private) List<EventHandler> | ExecutorService.ExecutorStatus. queuedEvents | 
| Modifier and Type | Method and Description | 
|---|---|
| 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. | 
| Modifier and Type | Method and Description | 
|---|---|
| int | EventHandler. compareTo(EventHandler o)Default prioritized runnable comparator which implements a FIFO ordering. | 
| void | ExecutorService. delayedSubmit(EventHandler eh,
             long delay,
             TimeUnit unit) | 
| void | ExecutorService. submit(EventHandler eh) | 
| (package private) void | ExecutorService.Executor. submit(EventHandler event)Submit the event to the queue for handling. | 
| Constructor and Description | 
|---|
| RunningEventStatus(Thread t,
                  EventHandler event) | 
| Constructor and Description | 
|---|
| ExecutorStatus(ExecutorService.Executor executor,
              List<EventHandler> queuedEvents,
              List<ExecutorService.RunningEventStatus> running) | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | DisabledTableSnapshotHandlerTake a snapshot of a disabled table. | 
| class  | EnabledTableSnapshotHandlerHandle the master side of taking a snapshot of an online table, regardless of snapshot type. | 
| class  | TakeSnapshotHandlerA handler for taking snapshots from the master. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CompactedHFilesDischargeHandlerEvent handler that handles the removal and archival of the compacted hfiles | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AssignRegionHandlerHandles opening of a region on a region server. | 
| class  | CloseMetaHandlerHandles closing of the meta region on a region server. | 
| class  | CloseRegionHandlerHandles closing of a region on a region server. | 
| class  | OpenMetaHandlerHandles opening of a meta region on a region server. | 
| class  | OpenPriorityRegionHandlerHandles opening of a high priority region on a region server. | 
| class  | OpenRegionHandlerDeprecated. 
 Keep it here only for compatible | 
| class  | ParallelSeekHandlerHandler to seek storefiles in parallel. | 
| class  | RegionReplicaFlushHandlerHBASE-11580: With the async wal approach (HBASE-11568), the edits are not persisted to WAL in
 secondary region replicas. | 
| class  | RSProcedureHandlerA event handler for running procedure. | 
| class  | UnassignRegionHandlerHandles closing of a region on a region server. | 
| class  | WALSplitterHandlerDeprecated. 
 since 2.4.0 and in 3.0.0, to be removed in 4.0.0, replaced by procedure-based
   distributed WAL splitter, see SplitWALManager | 
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