SplitWALProcedure (Apache HBase

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.SplitWALState>
  - - org.apache.hadoop.hbase.master.procedure.SplitWALProcedure

所有已实现的接口:

Comparable<Procedure<MasterProcedureEnv>>, ServerProcedureInterface
```
@InterfaceAudience.Private
public class SplitWALProcedure
extends StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
implements ServerProcedureInterface
```
The procedure is to split a WAL. It will get an available region server and schedule a SplitWALRemoteProcedure to actually send the request to region server to split this WAL. It also check if the split wal task really succeed. If the WAL still exists, it will schedule another region server to split this WAL.

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.ServerProcedureInterface
  ServerProcedureInterface.ServerOperationType

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

SplitWALProcedure()

SplitWALProcedure(String walPath, ServerName crashedServer)

构造器
构造器和说明
`SplitWALProcedure()`
`SplitWALProcedure(String walPath, ServerName crashedServer)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`protected void`	`afterReplay(MasterProcedureEnv env)`
`protected void`	`deserializeStateData(ProcedureStateSerializer serializer)`
`protected StateMachineProcedure.Flow`	`executeFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState state)`
`protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState`	`getInitialState()`
`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.SplitWALState`	`getState(int stateId)`
`protected int`	`getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState state)`
`String`	`getWAL()`
`ServerName`	`getWorker()`
`boolean`	`hasMetaTableRegion()`
`protected void`	`rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState splitOneWalState)`
`protected void`	`serializeStateData(ProcedureStateSerializer serializer)`
`protected boolean`	`setTimeoutFailure(MasterProcedureEnv env)`

从类继承的方法 org.apache.hadoop.hbase.procedure2.StateMachineProcedure
abort, 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
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, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, shouldWaitClientAck, skipPersistence, toString, toStringClass, toStringClassDetails, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, waitInitialized, 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
  - SplitWALProcedure
```
public SplitWALProcedure()
```
  - SplitWALProcedure
```
public SplitWALProcedure(String walPath,
                         ServerName crashedServer)
```
- 方法详细资料
  - executeFromState
```
protected StateMachineProcedure.Flow executeFromState(MasterProcedureEnv env,
                                                      org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState state)
                                               throws ProcedureSuspendedException,
                                                      ProcedureYieldException,
                                                      InterruptedException
```
    指定者:
    
    executeFromState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
    
    抛出:
    
    ProcedureSuspendedException
    
    ProcedureYieldException
    
    InterruptedException
  - rollbackState
```
protected void rollbackState(MasterProcedureEnv env,
                             org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState splitOneWalState)
                      throws IOException,
                             InterruptedException
```
    指定者:
    
    rollbackState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
    
    抛出:
    
    IOException
    
    InterruptedException
  - getState
```
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState getState(int stateId)
```
    指定者:
    
    getState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
  - getStateId
```
protected int getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState state)
```
    指定者:
    
    getStateId 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
  - getInitialState
```
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState getInitialState()
```
    指定者:
    
    getInitialState 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
  - serializeStateData
```
protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws IOException
```
    覆盖:
    
    serializeStateData 在类中 StateMachineProcedure<MasterProcedureEnv,org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.SplitWALState>
    
    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.SplitWALState>
    
    抛出:
    
    IOException
  - setTimeoutFailure
```
protected boolean setTimeoutFailure(MasterProcedureEnv env)
```
    覆盖:
    
    setTimeoutFailure 在类中 Procedure<MasterProcedureEnv>
  - getWAL
```
public String getWAL()
```
  - getWorker
```
public ServerName getWorker()
```
  - getServerName
```
public ServerName getServerName()
```
    指定者:
    
    getServerName 在接口中 ServerProcedureInterface
    
    返回:
    
    Name of this server instance.
  - hasMetaTableRegion
```
public boolean hasMetaTableRegion()
```
    指定者:
    
    hasMetaTableRegion 在接口中 ServerProcedureInterface
    
    返回:
    
    True if this server has an hbase:meta table region.
  - getServerOperationType
```
public ServerProcedureInterface.ServerOperationType getServerOperationType()
```
    从接口复制的说明: 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.
    
    指定者:
    
    getServerOperationType 在接口中 ServerProcedureInterface
    
    返回:
    
    the operation type that the procedure is executing.
  - afterReplay
```
protected void afterReplay(MasterProcedureEnv env)
```
    覆盖:
    
    afterReplay 在类中 Procedure<MasterProcedureEnv>

类 SplitWALProcedure

嵌套类概要

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

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

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

字段概要

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

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

构造器概要

方法概要

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

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

从类继承的方法 java.lang.Object

构造器详细资料

SplitWALProcedure

SplitWALProcedure

方法详细资料

executeFromState

rollbackState

getState

getStateId

getInitialState

serializeStateData

deserializeStateData

setTimeoutFailure

getWAL

getWorker

getServerName

hasMetaTableRegion

getServerOperationType

afterReplay