org.apache.hadoop.hbase.master.procedure

Class ServerRemoteProcedure

java.lang.Object

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

org.apache.hadoop.hbase.master.procedure.ServerRemoteProcedure

All Implemented Interfaces:

Comparable<Procedure<MasterProcedureEnv>>, RemoteProcedureDispatcher.RemoteProcedure<MasterProcedureEnv,ServerName>

Direct Known Subclasses:

RefreshPeerProcedure, SplitWALRemoteProcedure, SwitchRpcThrottleRemoteProcedure

@InterfaceAudience.Private
public abstract class ServerRemoteProcedure
extends Procedure<MasterProcedureEnv>
implements RemoteProcedureDispatcher.RemoteProcedure<MasterProcedureEnv,ServerName>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.Procedure

Procedure.LockState

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	dispatched
protected ProcedureEvent<?>	event
protected static org.slf4j.Logger	LOG
protected boolean	succ
protected ServerName	targetServer

Fields inherited from class org.apache.hadoop.hbase.procedure2.Procedure

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Constructor and Description
ServerRemoteProcedure()

Method Summary

Modifier and Type	Method and Description
protected abstract void	complete(MasterProcedureEnv env, Throwable error)
protected void	completionCleanup(MasterProcedureEnv env) Called when the procedure is marked as completed (success or rollback).
protected Procedure<MasterProcedureEnv>[]	execute(MasterProcedureEnv env) The main code of the procedure.
void	remoteCallFailed(MasterProcedureEnv env, ServerName serverName, IOException exception) Called when the executeProcedure call is failed.
void	remoteOperationCompleted(MasterProcedureEnv env) Called when RS tells the remote procedure is succeeded through the reportProcedureDone method.
(package private) void	remoteOperationDone(MasterProcedureEnv env, Throwable error)
void	remoteOperationFailed(MasterProcedureEnv env, RemoteProcedureException error) Called when RS tells the remote procedure is failed through the reportProcedureDone method.

Methods inherited from class org.apache.hadoop.hbase.procedure2.Procedure

abort, acquireLock, addStackIndex, afterReplay, beforeReplay, bypass, compareTo, deserializeStateData, 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, isYieldAfterExecutionStep, releaseLock, removeStackIndex, rollback, serializeStateData, setAbortFailure, setChildrenLatch, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, shouldWaitClientAck, skipPersistence, toString, toStringClass, toStringClassDetails, toStringDetails, toStringSimpleSB, toStringState, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, waitInitialized, wasExecuted

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hbase.procedure2.RemoteProcedureDispatcher.RemoteProcedure

remoteCallBuild, storeInDispatchedQueue

Field Detail

LOG

protected static final org.slf4j.Logger LOG

event

protected ProcedureEvent<?> event

targetServer

protected ServerName targetServer

dispatched

protected boolean dispatched

succ

protected boolean succ

Constructor Detail

ServerRemoteProcedure

public ServerRemoteProcedure()

Method Detail

complete

protected abstract void complete(MasterProcedureEnv env,
                                 Throwable error)

execute

protected Procedure<MasterProcedureEnv>[] execute(MasterProcedureEnv env)
                                           throws ProcedureYieldException,
                                                  ProcedureSuspendedException,
                                                  InterruptedException

Description copied from class: Procedure

The main code of the procedure. It must be idempotent since execute() may be called multiple times in case of machine failure in the middle of the execution.

Specified by:

execute in class Procedure<MasterProcedureEnv>

Parameters:

env - the environment passed to the ProcedureExecutor

Returns:

a set of sub-procedures to run or ourselves if there is more work to do or null if the procedure is done.

Throws:

ProcedureYieldException - the procedure will be added back to the queue and retried later.

ProcedureSuspendedException - Signal to the executor that Procedure has suspended itself and has set itself up waiting for an external event to wake it back up again.

InterruptedException - the procedure will be added back to the queue and retried later.

completionCleanup

protected void completionCleanup(MasterProcedureEnv env)

Description copied from class: Procedure

Called when the procedure is marked as completed (success or rollback). The procedure implementor may use this method to cleanup in-memory states. This operation will not be retried on failure. If a procedure took a lock, it will have been released when this method runs.

Overrides:

completionCleanup in class Procedure<MasterProcedureEnv>

remoteCallFailed

public void remoteCallFailed(MasterProcedureEnv env,
                             ServerName serverName,
                             IOException exception)

Description copied from interface: RemoteProcedureDispatcher.RemoteProcedure

Called when the executeProcedure call is failed.

Specified by:

remoteCallFailed in interface RemoteProcedureDispatcher.RemoteProcedure<MasterProcedureEnv,ServerName>

remoteOperationCompleted

public void remoteOperationCompleted(MasterProcedureEnv env)

Description copied from interface: RemoteProcedureDispatcher.RemoteProcedure

Called when RS tells the remote procedure is succeeded through the reportProcedureDone method.

Specified by:

remoteOperationCompleted in interface RemoteProcedureDispatcher.RemoteProcedure<MasterProcedureEnv,ServerName>

remoteOperationFailed

public void remoteOperationFailed(MasterProcedureEnv env,
                                  RemoteProcedureException error)

Description copied from interface: RemoteProcedureDispatcher.RemoteProcedure

Called when RS tells the remote procedure is failed through the reportProcedureDone method.

Specified by:

remoteOperationFailed in interface RemoteProcedureDispatcher.RemoteProcedure<MasterProcedureEnv,ServerName>

remoteOperationDone

void remoteOperationDone(MasterProcedureEnv env,
                         Throwable error)