org.apache.hadoop.hbase.master.assignment

类 MoveRegionProcedure

java.lang.Object

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

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

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

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

org.apache.hadoop.hbase.master.assignment.MoveRegionProcedure

所有已实现的接口:

Comparable<Procedure<MasterProcedureEnv>>, TableProcedureInterface

@InterfaceAudience.Private
public class MoveRegionProcedure
extends AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

Procedure that implements a RegionPlan. It first runs an unassign subprocedure followed by an assign subprocedure. It takes a lock on the region being moved. It holds the lock for the life of the procedure.

Throws exception on construction if determines context hostile to move (cluster going down or master is shutting down or table is disabled).

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.hbase.procedure2.StateMachineProcedure

StateMachineProcedure.Flow

从类继承的嵌套类/接口 org.apache.hadoop.hbase.procedure2.Procedure

Procedure.LockState

从接口继承的嵌套类/接口 org.apache.hadoop.hbase.master.procedure.TableProcedureInterface

TableProcedureInterface.TableOperationType

字段概要

从类继承的字段 org.apache.hadoop.hbase.procedure2.StateMachineProcedure

stateCount

从类继承的字段 org.apache.hadoop.hbase.procedure2.Procedure

NO_PROC_ID, NO_TIMEOUT

构造器概要

构造器

构造器和说明
MoveRegionProcedure()
MoveRegionProcedure(MasterProcedureEnv env, RegionPlan plan, boolean check)

方法概要

限定符和类型	方法和说明
boolean	abort(MasterProcedureEnv env)
protected void	deserializeStateData(ProcedureStateSerializer serializer)
protected StateMachineProcedure.Flow	executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState state)
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState	getInitialState()
protected RegionPlan	getPlan()
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState	getState(int stateId)
protected int	getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState state)
TableName	getTableName()
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected void	rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState state)
protected void	serializeStateData(ProcedureStateSerializer serializer)
void	toStringClassDetails(StringBuilder sb)

从类继承的方法 org.apache.hadoop.hbase.master.procedure.AbstractStateMachineRegionProcedure

acquireLock, checkTableModifiable, getRegion, holdLock, releaseLock, setFailure, setRegion

从类继承的方法 org.apache.hadoop.hbase.master.procedure.AbstractStateMachineTableProcedure

checkOnline, getUser, getWALRegionDir, preflightChecks, releaseSyncLatch, setUser, waitInitialized

从类继承的方法 org.apache.hadoop.hbase.procedure2.StateMachineProcedure

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

从类继承的方法 org.apache.hadoop.hbase.procedure2.Procedure

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, incChildrenLatch, isBypass, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, 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, wasExecuted

从类继承的方法 java.lang.Object

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

构造器详细资料

MoveRegionProcedure

public MoveRegionProcedure()

MoveRegionProcedure

public MoveRegionProcedure(MasterProcedureEnv env,
                           RegionPlan plan,
                           boolean check)
                    throws HBaseIOException

参数:

check - whether we should do some checks in the constructor. We will skip the checks if we are reopening a region as this may fail the whole procedure and cause stuck. We will do the check later when actually executing the procedure so not a big problem.

抛出:

IOException - If the cluster is offline or master is stopping or if table is disabled or non-existent.

HBaseIOException

方法详细资料

getPlan

protected RegionPlan getPlan()

executeFromState

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

指定者:

executeFromState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

抛出:

InterruptedException

rollbackState

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

指定者:

rollbackState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

抛出:

IOException

abort

public boolean abort(MasterProcedureEnv env)

覆盖:

abort 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

覆盖:

toStringClassDetails 在类中 AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

getInitialState

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

指定者:

getInitialState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

getStateId

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

指定者:

getStateId 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

getState

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

指定者:

getState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

getTableName

public TableName getTableName()

指定者:

getTableName 在接口中 TableProcedureInterface

覆盖:

getTableName 在类中 AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

返回:

the name of the table the procedure is operating on

getTableOperationType

public TableProcedureInterface.TableOperationType getTableOperationType()

从接口复制的说明: 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.

指定者:

getTableOperationType 在接口中 TableProcedureInterface

指定者:

getTableOperationType 在类中 AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

返回:

the operation type that the procedure is executing.

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws IOException

覆盖:

serializeStateData 在类中 AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

抛出:

IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws IOException

覆盖:

deserializeStateData 在类中 AbstractStateMachineRegionProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MoveRegionState>

抛出:

IOException