Package org.apache.hadoop.hbase.master.replication

Class RecoverStandbyProcedure

java.lang.Object

org.apache.hadoop.hbase.procedure2.Procedure<TEnvironment>

org.apache.hadoop.hbase.procedure2.StateMachineProcedure<MasterProcedureEnv,TState>

org.apache.hadoop.hbase.master.replication.AbstractPeerNoLockProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

org.apache.hadoop.hbase.master.replication.RecoverStandbyProcedure

All Implemented Interfaces:

Comparable<Procedure<MasterProcedureEnv>>, PeerProcedureInterface

@Private
public class RecoverStandbyProcedure
extends AbstractPeerNoLockProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

The procedure for replaying all the remote wals for transitting a sync replication peer from STANDBY to DOWNGRADE_ACTIVE.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure

StateMachineProcedure.Flow

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.Procedure

Procedure.LockState

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

PeerProcedureInterface.PeerOperationType

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG
private boolean	serial

Fields inherited from class org.apache.hadoop.hbase.master.replication.AbstractPeerNoLockProcedure

peerId

Fields inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure

stateCount

Fields inherited from class org.apache.hadoop.hbase.procedure2.Procedure

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
RecoverStandbyProcedure()
RecoverStandbyProcedure(String peerId, boolean serial)

Method Summary

Modifier and Type	Method	Description
protected void	afterReplay(MasterProcedureEnv env)	Called when the procedure is ready to be added to the queue after the loading/replay operation.
protected void	deserializeStateData(ProcedureStateSerializer serializer)	Called on store load to allow the user to decode the previously serialized state.
private void	dispathWals(SyncReplicationReplayWALManager syncReplicationReplayWALManager)
protected StateMachineProcedure.Flow	executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState state)	called to perform a single step of the specified 'state' of the procedure
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState	getInitialState()	Return the initial state object that will be used for the first call to executeFromState().
PeerProcedureInterface.PeerOperationType	getPeerOperationType()
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState	getState(int stateId)	Convert an ordinal (or state id) to an Enum (or more descriptive) state object.
protected int	getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState state)	Convert the Enum (or more descriptive) state object to an ordinal (or state id).
protected void	serializeStateData(ProcedureStateSerializer serializer)	The user-level code of the procedure may have some state to persist (e.g.

Methods inherited from class org.apache.hadoop.hbase.master.replication.AbstractPeerNoLockProcedure

getPeerId, resetRetry, rollbackState, setTimeoutFailure, suspend, waitInitialized

Methods inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure

abort, addChildProcedure, execute, failIfAborted, getCurrentState, getCurrentStateId, getCycles, isEofState, isRollbackSupported, isRollbackSupported, isYieldAfterExecutionStep, isYieldBeforeExecuteFromState, rollback, setNextState, toStringState

Methods inherited from class org.apache.hadoop.hbase.procedure2.Procedure

acquireLock, addStackIndex, beforeReplay, bypass, compareTo, completionCleanup, doExecute, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getNonceKey, getOwner, getParentProcId, getProcedureMetrics, getProcId, getProcIdHashCode, getProcName, getResult, getRootProcedureId, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasOwner, hasParent, hasTimeout, haveSameParent, holdLock, incChildrenLatch, isBypass, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, releaseLock, removeStackIndex, setAbortFailure, setChildrenLatch, setExecuted, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, shouldWaitClientAck, skipPersistence, suspend, toString, toStringClass, toStringClassDetails, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, wasExecuted

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

serial

private boolean serial

Constructor Details

RecoverStandbyProcedure

public RecoverStandbyProcedure()

RecoverStandbyProcedure

public RecoverStandbyProcedure(String peerId,
 boolean serial)

Method Details

executeFromState

protected StateMachineProcedure.Flow executeFromState(MasterProcedureEnv env,
 org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState state)
                                               throws ProcedureSuspendedException,
ProcedureYieldException,
InterruptedException

Description copied from class: StateMachineProcedure

called to perform a single step of the specified 'state' of the procedure

Specified by:

executeFromState in class StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

state - state to execute

Returns:

Flow.NO_MORE_STATE if the procedure is completed, Flow.HAS_MORE_STATE if there is another step.

Throws:

ProcedureSuspendedException

ProcedureYieldException

InterruptedException

dispathWals

private void dispathWals(SyncReplicationReplayWALManager syncReplicationReplayWALManager)
                  throws ProcedureYieldException

Throws:

ProcedureYieldException

getState

protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState getState(int stateId)

Description copied from class: StateMachineProcedure

Convert an ordinal (or state id) to an Enum (or more descriptive) state object.

Specified by:

getState in class StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

Parameters:

stateId - the ordinal() of the state enum (or state id)

Returns:

the state enum object

getStateId

protected int getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState state)

Description copied from class: StateMachineProcedure

Convert the Enum (or more descriptive) state object to an ordinal (or state id).

Specified by:

getStateId in class StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

Parameters:

state - the state enum object

Returns:

stateId the ordinal() of the state enum (or state id)

getInitialState

protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState getInitialState()

Description copied from class: StateMachineProcedure

Return the initial state object that will be used for the first call to executeFromState().

Specified by:

getInitialState in class StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

Returns:

the initial state enum object

getPeerOperationType

public PeerProcedureInterface.PeerOperationType getPeerOperationType()

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws IOException

Description copied from class: Procedure

The user-level code of the procedure may have some state to persist (e.g. input arguments or current position in the processing state) to be able to resume on failure.

Overrides:

serializeStateData in class AbstractPeerNoLockProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

Parameters:

serializer - stores the serializable state

Throws:

IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws IOException

Description copied from class: Procedure

Called on store load to allow the user to decode the previously serialized state.

Overrides:

deserializeStateData in class AbstractPeerNoLockProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.RecoverStandbyState>

Parameters:

serializer - contains the serialized state

Throws:

IOException

afterReplay

protected void afterReplay(MasterProcedureEnv env)

Description copied from class: Procedure

Called when the procedure is ready to be added to the queue after the loading/replay operation.

Overrides:

afterReplay in class Procedure<MasterProcedureEnv>