Package org.apache.hadoop.hbase.procedure2

Interface Summary

Interface	Description
LockStatus	Interface to get status of a Lock without getting access to acquire/release lock.
ProcedureExecutor.ProcedureExecutorListener
ProcedureMetrics	With this interface, the procedure framework provides means to collect following set of metrics per procedure type for all procedures: Count of submitted procedure instances Time histogram for successfully completed procedure instances Count of failed procedure instances Please implement this interface to return appropriate metrics.
ProcedureScheduler	Keep track of the runnable procedures
ProcedureStateSerializer
RemoteProcedureDispatcher.RemoteNode<TEnv,TRemote>	Account of what procedures are running on remote node.
RemoteProcedureDispatcher.RemoteProcedure<TEnv,TRemote>	Remote procedure reference.
RSProcedureCallable	A general interface for a sub procedure runs at RS side.

Class Summary

Class	Description
AbstractProcedureScheduler
CompletedProcedureCleaner<TEnvironment>	Internal cleaner that removes the completed procedure results after a TTL.
CompletedProcedureRetainer<TEnvironment>	Hold the reference to a completed root procedure.
DelayedProcedure<TEnvironment>	Vessel that carries a Procedure and a timeout.
FailedProcedure<TEnvironment>
InlineChore	Inline Chores (executors internal chores).
LockAndQueue	Locking for mutual exclusion between procedures.
LockedResource
OnePhaseProcedure<TEnvironment>
Procedure<TEnvironment>	Base Procedure class responsible for Procedure Metadata; e.g.
ProcedureDeque	Type class.
ProcedureEvent<T>	Basic ProcedureEvent that contains an "object", which can be a description or a reference to the resource to wait on, and a queue for suspended procedures.
ProcedureExecutor<TEnvironment>	Thread Pool that executes the submitted procedures.
ProcedureExecutor.Testing	Class with parameters describing how to fail/die when in testing-context.
ProcedureInMemoryChore<TEnvironment>	Special procedure used as a chore.
ProcedureUtil	Helper to convert to/from ProcedureProtos
ProcedureUtil.CompatStateSerializer	A serializer (deserializer) for those Procedures which were serialized before this patch.
ProcedureUtil.StateSerializer	A serializer for our Procedures.
RemoteProcedureDispatcher<TEnv,TRemote extends Comparable<TRemote>>	A procedure dispatcher that aggregates and sends after elapsed time or after we hit count threshold.
RemoteProcedureDispatcher.DelayedTask	Delayed object that holds a FutureTask.
RemoteProcedureDispatcher.RemoteOperation	Data structure with reference to remote operation.
RootProcedureState<TEnvironment>	Internal state of the ProcedureExecutor that describes the state of a "Root Procedure".
SequentialProcedure<TEnvironment>	A SequentialProcedure describes one step in a procedure chain:
SimpleProcedureScheduler	Simple scheduler for procedures
StateMachineProcedure<TEnvironment,TState>	Procedure described by a series of steps.
StoppableThread
TimeoutExecutorThread<TEnvironment>	Runs task on a period such as check for stuck workers.
TwoPhaseProcedure<TEnvironment>

Enum Summary

Enum	Description
LockedResourceType
LockType
Procedure.LockState
RootProcedureState.State
StateMachineProcedure.Flow

Exception Summary

Exception	Description
BadProcedureException
FailedRemoteDispatchException	Used internally signaling failed queue of a remote procedure operation.
NoNodeDispatchException	Used internally signaling failed queue of a remote procedure operation.
NoServerDispatchException	Used internally signaling failed queue of a remote procedure operation.
NullTargetServerDispatchException	Used internally signaling failed queue of a remote procedure operation.
ProcedureAbortedException	Thrown when a procedure is aborted
ProcedureException
ProcedureSuspendedException
ProcedureYieldException
RemoteProcedureException	A RemoteProcedureException is an exception from another thread or process.