org.apache.hadoop.hbase.master.assignment

Class GCRegionProcedure

java.lang.Object

<any>

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure<TState>

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure<GCRegionState>

org.apache.hadoop.hbase.master.assignment.GCRegionProcedure

All Implemented Interfaces:

TableProcedureInterface

public class GCRegionProcedure
extends AbstractStateMachineRegionProcedure<GCRegionState>

GC a Region that is no longer in use. It has been split or merged away. Caller determines if it is GC time. This Procedure does not check.

This is a Region StateMachine Procedure. We take a read lock on the Table and then exclusive on the Region.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface

TableProcedureInterface.TableOperationType

Constructor Summary

Constructors

Constructor and Description
GCRegionProcedure()
GCRegionProcedure(MasterProcedureEnv env, RegionInfo hri)

Method Summary

Modifier and Type	Method and Description
protected org.apache.hadoop.hbase.procedure2.Procedure.LockState	acquireLock(MasterProcedureEnv env)
protected void	deserializeStateData(ProcedureStateSerializer serializer)
protected Flow	executeFromState(MasterProcedureEnv env, GCRegionState state)
protected GCRegionState	getInitialState()
protected GCRegionState	getState(int stateId)
protected int	getStateId(GCRegionState state)
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected void	rollbackState(MasterProcedureEnv env, GCRegionState state)
protected void	serializeStateData(ProcedureStateSerializer serializer)

Methods inherited from class org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure

checkTableModifiable, getRegion, getTableName, hasLock, holdLock, releaseLock, setFailure, setRegion, toStringClassDetails

Methods inherited from class org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure

checkOnline, getRegionDir, getUser, preflightChecks, releaseSyncLatch, setUser

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GCRegionProcedure

public GCRegionProcedure(MasterProcedureEnv env,
                         RegionInfo hri)

GCRegionProcedure

public GCRegionProcedure()

Method Detail

getTableOperationType

public TableProcedureInterface.TableOperationType getTableOperationType()

Description copied from interface: TableProcedureInterface

Given an operation type we can take decisions about what to do with pending operations. e.g. if we get a delete and we have some table operation pending (e.g. add column) we can abort those operations.

Specified by:

getTableOperationType in interface TableProcedureInterface

Specified by:

getTableOperationType in class AbstractStateMachineRegionProcedure<GCRegionState>

Returns:

the operation type that the procedure is executing.

executeFromState

protected Flow executeFromState(MasterProcedureEnv env,
                                GCRegionState state)
                         throws ProcedureSuspendedException,
                                ProcedureYieldException,
                                java.lang.InterruptedException

Throws:

ProcedureSuspendedException

ProcedureYieldException

java.lang.InterruptedException

rollbackState

protected void rollbackState(MasterProcedureEnv env,
                             GCRegionState state)
                      throws java.io.IOException,
                             java.lang.InterruptedException

Throws:

java.io.IOException

java.lang.InterruptedException

getState

protected GCRegionState getState(int stateId)

getStateId

protected int getStateId(GCRegionState state)

getInitialState

protected GCRegionState getInitialState()

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws java.io.IOException

Overrides:

serializeStateData in class AbstractStateMachineRegionProcedure<GCRegionState>

Throws:

java.io.IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws java.io.IOException

Overrides:

deserializeStateData in class AbstractStateMachineRegionProcedure<GCRegionState>

Throws:

java.io.IOException

acquireLock

protected org.apache.hadoop.hbase.procedure2.Procedure.LockState acquireLock(MasterProcedureEnv env)

Overrides:

acquireLock in class AbstractStateMachineRegionProcedure<GCRegionState>