org.apache.hadoop.hbase.master.procedure

类 ServerCrashProcedure

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.ServerCrashState>

org.apache.hadoop.hbase.master.procedure.ServerCrashProcedure

所有已实现的接口:

Comparable<Procedure<MasterProcedureEnv>>, ServerProcedureInterface

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

Handle crashed server. This is a port to ProcedureV2 of what used to be euphemistically called ServerShutdownHandler.

The procedure flow varies dependent on whether meta is assigned and if we are to split logs.

We come in here after ServerManager has noticed a server has expired. Procedures queued on the rpc should have been notified about fail and should be concurrently getting themselves ready to assign elsewhere.

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
ServerCrashProcedure() Used when deserializing from a procedure store; we'll construct one of these then call #deserializeStateData(InputStream).
ServerCrashProcedure(MasterProcedureEnv env, ServerName serverName, boolean shouldSplitWal, boolean carryingMeta) Call this constructor queuing up a Procedure.

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.ServerCrashState state)
protected org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ServerCrashState	getInitialState()
protected ProcedureMetrics	getProcedureMetrics(MasterProcedureEnv env)
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.ServerCrashState	getState(int stateId)
protected int	getStateId(org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ServerCrashState state)
boolean	hasMetaTableRegion()
protected boolean	isYieldBeforeExecuteFromState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ServerCrashState state) For this procedure, yield at end of each successful flow step so that all crashed servers can make progress rather than do the default which has each procedure running to completion before we move to the next.
protected void	releaseLock(MasterProcedureEnv env)
protected void	rollbackState(MasterProcedureEnv env, org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ServerCrashState state)
protected void	serializeStateData(ProcedureStateSerializer serializer)
protected boolean	shouldWaitClientAck(MasterProcedureEnv env)
void	toStringClassDetails(StringBuilder sb)

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

addChildProcedure, execute, failIfAborted, getCurrentState, getCurrentStateId, getCycles, isEofState, isRollbackSupported, isYieldAfterExecutionStep, 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, holdLock, 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, skipPersistence, toString, toStringClass, 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

ServerCrashProcedure

public ServerCrashProcedure(MasterProcedureEnv env,
                            ServerName serverName,
                            boolean shouldSplitWal,
                            boolean carryingMeta)

Call this constructor queuing up a Procedure.

参数:

serverName - Name of the crashed server.

shouldSplitWal - True if we should split WALs as part of crashed server processing.

carryingMeta - True if carrying hbase:meta table region.

ServerCrashProcedure

public ServerCrashProcedure()

Used when deserializing from a procedure store; we'll construct one of these then call #deserializeStateData(InputStream). Do not use directly.

方法详细资料

executeFromState

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

指定者:

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

抛出:

ProcedureSuspendedException

ProcedureYieldException

rollbackState

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

指定者:

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

抛出:

IOException

getState

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

指定者:

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

getStateId

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

指定者:

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

getInitialState

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

指定者:

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

abort

protected boolean abort(MasterProcedureEnv env)

覆盖:

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

acquireLock

protected Procedure.LockState acquireLock(MasterProcedureEnv env)

覆盖:

acquireLock 在类中 Procedure<MasterProcedureEnv>

releaseLock

protected void releaseLock(MasterProcedureEnv env)

覆盖:

releaseLock 在类中 Procedure<MasterProcedureEnv>

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

覆盖:

toStringClassDetails 在类中 Procedure<MasterProcedureEnv>

serializeStateData

protected void serializeStateData(ProcedureStateSerializer serializer)
                           throws IOException

覆盖:

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

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.ServerCrashState>

抛出:

IOException

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.

isYieldBeforeExecuteFromState

protected boolean isYieldBeforeExecuteFromState(MasterProcedureEnv env,
                                                org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ServerCrashState state)

For this procedure, yield at end of each successful flow step so that all crashed servers can make progress rather than do the default which has each procedure running to completion before we move to the next. For crashed servers, especially if running with distributed log replay, we will want all servers to come along; we do not want the scenario where a server is stuck waiting for regions to online so it can replay edits.

覆盖:

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

shouldWaitClientAck

protected boolean shouldWaitClientAck(MasterProcedureEnv env)

覆盖:

shouldWaitClientAck 在类中 Procedure<MasterProcedureEnv>

getProcedureMetrics

protected ProcedureMetrics getProcedureMetrics(MasterProcedureEnv env)

覆盖:

getProcedureMetrics 在类中 Procedure<MasterProcedureEnv>