org.apache.hadoop.hbase.master.procedure

Class SwitchRpcThrottleProcedure

java.lang.Object

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

org.apache.hadoop.hbase.procedure2.StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState>

org.apache.hadoop.hbase.master.procedure.SwitchRpcThrottleProcedure

All Implemented Interfaces:

Comparable<Procedure<MasterProcedureEnv>>, ServerProcedureInterface

@InterfaceAudience.Private
public class SwitchRpcThrottleProcedure
extends StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState>
implements ServerProcedureInterface

The procedure to switch rpc throttle

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.ServerProcedureInterface

ServerProcedureInterface.ServerOperationType

Field Summary

Fields

Modifier and Type	Field and Description
private static org.slf4j.Logger	LOG
private RetryCounter	retryCounter
private boolean	rpcThrottleEnabled
private RpcThrottleStorage	rpcThrottleStorage
private ServerName	serverName
private ProcedurePrepareLatch	syncLatch

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

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
SwitchRpcThrottleProcedure()
SwitchRpcThrottleProcedure(RpcThrottleStorage rpcThrottleStorage, boolean rpcThrottleEnabled, ServerName serverName, ProcedurePrepareLatch syncLatch)

Method Summary

Modifier and Type	Method and Description
protected void	deserializeStateData(ProcedureStateSerializer serializer) Called on store load to allow the user to decode the previously serialized state.
protected StateMachineProcedure.Flow	executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState state) called to perform a single step of the specified 'state' of the procedure
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState	getCurrentState()
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState	getInitialState() Return the initial state object that will be used for the first call to executeFromState().
ServerName	getServerName()
ServerProcedureInterface.ServerOperationType	getServerOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState	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.SwitchRpcThrottleState throttleState) Convert the Enum (or more descriptive) state object to an ordinal (or state id).
boolean	hasMetaTableRegion()
protected void	rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState state) called to perform the rollback of the specified state
protected void	serializeStateData(ProcedureStateSerializer serializer) The user-level code of the procedure may have some state to persist (e.g.
void	switchThrottleState(MasterProcedureEnv env, boolean rpcThrottleEnabled)
void	toStringClassDetails(StringBuilder sb) Extend the toString() information with the procedure details e.g.

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

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

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

acquireLock, addStackIndex, afterReplay, 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, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, shouldWaitClientAck, skipPersistence, toString, toStringClass, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, waitInitialized, wasExecuted

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static org.slf4j.Logger LOG

rpcThrottleStorage

private RpcThrottleStorage rpcThrottleStorage

rpcThrottleEnabled

private boolean rpcThrottleEnabled

syncLatch

private ProcedurePrepareLatch syncLatch

serverName

private ServerName serverName

retryCounter

private RetryCounter retryCounter

Constructor Detail

SwitchRpcThrottleProcedure

public SwitchRpcThrottleProcedure()

SwitchRpcThrottleProcedure

public SwitchRpcThrottleProcedure(RpcThrottleStorage rpcThrottleStorage,
                                  boolean rpcThrottleEnabled,
                                  ServerName serverName,
                                  ProcedurePrepareLatch syncLatch)

Method Detail

executeFromState

protected StateMachineProcedure.Flow executeFromState(MasterProcedureEnv env,
                                                      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState 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.SwitchRpcThrottleState>

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

rollbackState

protected void rollbackState(MasterProcedureEnv env,
                             org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState state)
                      throws IOException,
                             InterruptedException

Description copied from class: StateMachineProcedure

called to perform the rollback of the specified state

Specified by:

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

state - state to rollback

Throws:

IOException - temporary failure, the rollback will retry later

InterruptedException

getState

protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState 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.SwitchRpcThrottleState>

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.SwitchRpcThrottleState throttleState)

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.SwitchRpcThrottleState>

Parameters:

throttleState - 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.SwitchRpcThrottleState 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.SwitchRpcThrottleState>

Returns:

the initial state enum object

getCurrentState

protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState getCurrentState()

Overrides:

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

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 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState>

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 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SwitchRpcThrottleState>

Parameters:

serializer - contains the serialized state

Throws:

IOException

getServerName

public ServerName getServerName()

Specified by:

getServerName in interface ServerProcedureInterface

Returns:

Name of this server instance.

hasMetaTableRegion

public boolean hasMetaTableRegion()

Specified by:

hasMetaTableRegion in interface ServerProcedureInterface

Returns:

True if this server has an hbase:meta table region.

getServerOperationType

public ServerProcedureInterface.ServerOperationType getServerOperationType()

Description copied from interface: ServerProcedureInterface

Given an operation type we can take decisions about what to do with pending operations. e.g. if we get a crash handler and we have some assignment operation pending we can abort those operations.

Specified by:

getServerOperationType in interface ServerProcedureInterface

Returns:

the operation type that the procedure is executing.

switchThrottleState

public void switchThrottleState(MasterProcedureEnv env,
                                boolean rpcThrottleEnabled)
                         throws IOException

Throws:

IOException

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

Description copied from class: Procedure

Extend the toString() information with the procedure details e.g. className and parameters

Overrides:

toStringClassDetails in class Procedure<MasterProcedureEnv>

Parameters:

sb - the string builder to use to append the proc specific information