org.apache.hadoop.hbase.master.assignment

类 MergeTableRegionsProcedure

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<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

org.apache.hadoop.hbase.master.assignment.MergeTableRegionsProcedure

所有已实现的接口:

Comparable<Procedure<MasterProcedureEnv>>, TableProcedureInterface

@InterfaceAudience.Private
public class MergeTableRegionsProcedure
extends AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

The procedure to Merge a region in a table. This procedure takes an exclusive table lock since it is working over multiple regions. It holds the lock for the life of the procedure.

Throws exception on construction if determines context hostile to merge (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
MergeTableRegionsProcedure()
MergeTableRegionsProcedure(MasterProcedureEnv env, RegionInfo[] regionsToMerge, boolean forcible)
MergeTableRegionsProcedure(MasterProcedureEnv env, RegionInfo regionToMergeA, RegionInfo regionToMergeB)
MergeTableRegionsProcedure(MasterProcedureEnv env, RegionInfo regionToMergeA, RegionInfo regionToMergeB, boolean forcible)

方法概要

限定符和类型	方法和说明
protected boolean	abort(MasterProcedureEnv env)
protected Procedure.LockState	acquireLock(MasterProcedureEnv env)
protected void	deserializeStateData(ProcedureStateSerializer serializer)
protected StateMachineProcedure.Flow	executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState state)
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState	getInitialState()
RegionInfo	getMergedRegion()
protected ProcedureMetrics	getProcedureMetrics(MasterProcedureEnv env)
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState	getState(int stateId)
protected int	getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState state)
TableName	getTableName()
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected boolean	holdLock(MasterProcedureEnv env)
protected boolean	isRollbackSupported(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState state)
protected void	releaseLock(MasterProcedureEnv env)
protected void	rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState state) To rollback MergeTableRegionsProcedure, two AssignProcedures are asynchronously submitted for each region to be merged (rollback doesn't wait on the completion of the AssignProcedures) .
protected void	serializeStateData(ProcedureStateSerializer serializer)
void	setRegionStateToMerging(MasterProcedureEnv env) Set the region states to MERGING state
void	toStringClassDetails(StringBuilder sb)

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

checkOnline, checkTableModifiable, 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, 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, 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

MergeTableRegionsProcedure

public MergeTableRegionsProcedure()

MergeTableRegionsProcedure

public MergeTableRegionsProcedure(MasterProcedureEnv env,
                                  RegionInfo regionToMergeA,
                                  RegionInfo regionToMergeB)
                           throws IOException

抛出:

IOException

MergeTableRegionsProcedure

public MergeTableRegionsProcedure(MasterProcedureEnv env,
                                  RegionInfo regionToMergeA,
                                  RegionInfo regionToMergeB,
                                  boolean forcible)
                           throws IOException

抛出:

IOException

MergeTableRegionsProcedure

public MergeTableRegionsProcedure(MasterProcedureEnv env,
                                  RegionInfo[] regionsToMerge,
                                  boolean forcible)
                           throws IOException

抛出:

IOException

方法详细资料

executeFromState

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

指定者:

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

rollbackState

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

To rollback MergeTableRegionsProcedure, two AssignProcedures are asynchronously submitted for each region to be merged (rollback doesn't wait on the completion of the AssignProcedures) . This can be improved by changing rollback() to support sub-procedures. See HBASE-19851 for details.

指定者:

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

抛出:

IOException

isRollbackSupported

protected boolean isRollbackSupported(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState state)

覆盖:

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

getState

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

指定者:

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

getStateId

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

指定者:

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

getInitialState

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

指定者:

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

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws IOException

覆盖:

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

抛出:

IOException

deserializeStateData

protected void deserializeStateData(ProcedureStateSerializer serializer)
                             throws IOException

覆盖:

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

抛出:

IOException

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

覆盖:

toStringClassDetails 在类中 AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

acquireLock

protected Procedure.LockState acquireLock(MasterProcedureEnv env)

覆盖:

acquireLock 在类中 AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

releaseLock

protected void releaseLock(MasterProcedureEnv env)

覆盖:

releaseLock 在类中 AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

holdLock

protected boolean holdLock(MasterProcedureEnv env)

覆盖:

holdLock 在类中 Procedure<MasterProcedureEnv>

getTableName

public TableName getTableName()

指定者:

getTableName 在接口中 TableProcedureInterface

指定者:

getTableName 在类中 AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

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 AbstractStateMachineTableProcedure<org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.MergeTableRegionsState>

返回:

the operation type that the procedure is executing.

getProcedureMetrics

protected ProcedureMetrics getProcedureMetrics(MasterProcedureEnv env)

覆盖:

getProcedureMetrics 在类中 Procedure<MasterProcedureEnv>

setRegionStateToMerging

public void setRegionStateToMerging(MasterProcedureEnv env)

Set the region states to MERGING state

参数:

env - MasterProcedureEnv

getMergedRegion

public RegionInfo getMergedRegion()

返回:

The merged region. Maybe be null if called to early or we failed.

abort

protected boolean abort(MasterProcedureEnv env)

覆盖:

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