程序包 org.apache.iotdb.confignode.procedure.impl.statemachine

类 RegionMigrateProcedure

java.lang.Object

org.apache.iotdb.confignode.procedure.Procedure<Env>

org.apache.iotdb.confignode.procedure.impl.statemachine.StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

org.apache.iotdb.confignode.procedure.impl.statemachine.RegionMigrateProcedure

所有已实现的接口:

java.lang.Comparable<Procedure<ConfigNodeProcedureEnv>>

public class RegionMigrateProcedure
extends StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

region migrate procedure

嵌套类概要

从类继承的嵌套类/接口 org.apache.iotdb.confignode.procedure.impl.statemachine.StateMachineProcedure

StateMachineProcedure.Flow

字段概要

从类继承的字段 org.apache.iotdb.confignode.procedure.impl.statemachine.StateMachineProcedure

stateCount

从类继承的字段 org.apache.iotdb.confignode.procedure.Procedure

NO_PROC_ID, NO_TIMEOUT

构造器概要

构造器

构造器	说明
RegionMigrateProcedure()
RegionMigrateProcedure(org.apache.iotdb.common.rpc.thrift.TConsensusGroupId consensusGroupId, org.apache.iotdb.common.rpc.thrift.TDataNodeLocation originalDataNode, org.apache.iotdb.common.rpc.thrift.TDataNodeLocation destDataNode)

方法概要

修饰符和类型	方法	说明
protected ProcedureLockState	acquireLock(ConfigNodeProcedureEnv configNodeProcedureEnv)	Acquire a lock, user should override it if necessary.
void	deserialize(java.nio.ByteBuffer byteBuffer)
boolean	equals(java.lang.Object that)
protected StateMachineProcedure.Flow	executeFromState(ConfigNodeProcedureEnv env, RegionTransitionState state)	called to perform a single step of the specified 'state' of the procedure
org.apache.iotdb.common.rpc.thrift.TConsensusGroupId	getConsensusGroupId()
protected RegionTransitionState	getInitialState()	Return the initial state object that will be used for the first call to executeFromState().
protected RegionTransitionState	getState(int stateId)	Convert an ordinal (or state id) to an Enum (or more descriptive) state object.
protected int	getStateId(RegionTransitionState regionTransitionState)	Convert the Enum (or more descriptive) state object to an ordinal (or state id).
protected boolean	isRollbackSupported(RegionTransitionState state)	Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.
void	notifyTheRegionMigrateFinished(org.apache.iotdb.confignode.rpc.thrift.TRegionMigrateResultReportReq req)	DataNode report region migrate result to ConfigNode, and continue
protected void	releaseLock(ConfigNodeProcedureEnv configNodeProcedureEnv)	Release a lock, user should override it if necessary.
protected void	rollbackState(ConfigNodeProcedureEnv env, RegionTransitionState state)	called to perform the rollback of the specified state
void	serialize(java.io.DataOutputStream stream)
org.apache.iotdb.common.rpc.thrift.TSStatus	waitForOneMigrationStepFinished(org.apache.iotdb.common.rpc.thrift.TConsensusGroupId consensusGroupId, RegionTransitionState state)

从类继承的方法 org.apache.iotdb.confignode.procedure.impl.statemachine.StateMachineProcedure

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

从类继承的方法 org.apache.iotdb.confignode.procedure.Procedure

addStackIndex, afterRecover, beforeRecover, compareTo, completionCleanup, deserializeTypeInfo, doAcquireLock, doExecute, doReleaseLock, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getParentProcId, getProcId, getProcName, getResult, getRootProcedureId, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasParent, hasTimeout, haveSameParent, holdLock, incChildrenLatch, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, needPersistance, newInstance, removeStackIndex, resetPersistance, restoreLock, setAbortFailure, setChildrenLatch, setFailure, setFailure, setLastUpdate, setParentProcId, setProcId, setProcRunnable, setResult, setRootProcedureId, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, skipPersistance, toString, toStringClass, toStringClassDetails, toStringDetails, toStringSimpleSB, updateTimestamp, waitInitialized, wasExecuted

从类继承的方法 java.lang.Object

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

构造器详细资料

RegionMigrateProcedure

public RegionMigrateProcedure()

RegionMigrateProcedure

public RegionMigrateProcedure(org.apache.iotdb.common.rpc.thrift.TConsensusGroupId consensusGroupId,
                              org.apache.iotdb.common.rpc.thrift.TDataNodeLocation originalDataNode,
                              org.apache.iotdb.common.rpc.thrift.TDataNodeLocation destDataNode)

方法详细资料

executeFromState

protected StateMachineProcedure.Flow executeFromState(ConfigNodeProcedureEnv env,
                                                      RegionTransitionState state)

从类复制的说明: StateMachineProcedure

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

指定者:

executeFromState 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

state - state to execute

返回:

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

rollbackState

protected void rollbackState(ConfigNodeProcedureEnv env,
                             RegionTransitionState state)
                      throws java.io.IOException,
                             java.lang.InterruptedException,
                             ProcedureException

从类复制的说明: StateMachineProcedure

called to perform the rollback of the specified state

指定者:

rollbackState 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

state - state to rollback

抛出:

java.io.IOException - temporary failure, the rollback will retry later

java.lang.InterruptedException

ProcedureException

isRollbackSupported

protected boolean isRollbackSupported(RegionTransitionState state)

从类复制的说明: StateMachineProcedure

Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.

覆盖:

isRollbackSupported 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

acquireLock

protected ProcedureLockState acquireLock(ConfigNodeProcedureEnv configNodeProcedureEnv)

从类复制的说明: Procedure

Acquire a lock, user should override it if necessary.

覆盖:

acquireLock 在类中 Procedure<ConfigNodeProcedureEnv>

参数:

configNodeProcedureEnv - environment

返回:

state of lock

releaseLock

protected void releaseLock(ConfigNodeProcedureEnv configNodeProcedureEnv)

从类复制的说明: Procedure

Release a lock, user should override it if necessary.

覆盖:

releaseLock 在类中 Procedure<ConfigNodeProcedureEnv>

参数:

configNodeProcedureEnv - env

getState

protected RegionTransitionState getState(int stateId)

从类复制的说明: StateMachineProcedure

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

指定者:

getState 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

参数:

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

返回:

the state enum object

getStateId

protected int getStateId(RegionTransitionState regionTransitionState)

从类复制的说明: StateMachineProcedure

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

指定者:

getStateId 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

参数:

regionTransitionState - the state enum object

返回:

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

getInitialState

protected RegionTransitionState getInitialState()

从类复制的说明: StateMachineProcedure

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

指定者:

getInitialState 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

返回:

the initial state enum object

serialize

public void serialize(java.io.DataOutputStream stream)
               throws java.io.IOException

覆盖:

serialize 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

抛出:

java.io.IOException

deserialize

public void deserialize(java.nio.ByteBuffer byteBuffer)

覆盖:

deserialize 在类中 StateMachineProcedure<ConfigNodeProcedureEnv,RegionTransitionState>

equals

public boolean equals(java.lang.Object that)

覆盖:

equals 在类中 java.lang.Object

waitForOneMigrationStepFinished

public org.apache.iotdb.common.rpc.thrift.TSStatus waitForOneMigrationStepFinished(org.apache.iotdb.common.rpc.thrift.TConsensusGroupId consensusGroupId,
                                                                                   RegionTransitionState state)
                                                                            throws java.lang.Exception

抛出:

java.lang.Exception

notifyTheRegionMigrateFinished

public void notifyTheRegionMigrateFinished(org.apache.iotdb.confignode.rpc.thrift.TRegionMigrateResultReportReq req)

DataNode report region migrate result to ConfigNode, and continue

getConsensusGroupId

public org.apache.iotdb.common.rpc.thrift.TConsensusGroupId getConsensusGroupId()