com.sleepycat.je.rep.impl.node

Class Replica.ReplayThread

java.lang.Object

java.lang.Thread

com.sleepycat.je.utilint.StoppableThread

com.sleepycat.je.rep.impl.node.Replica.ReplayThread

All Implemented Interfaces:

ExceptionListenerUser, java.lang.Runnable

Enclosing class:

Replica

 class Replica.ReplayThread
extends StoppableThread

The thread responsible for the replay of messages delivered over the replication stream. Reading and replay are done in separate threads for two reasons: 1) It allows the two activities to make independent progress. The network can be read and messages assembled even if the replay activity has stalled. 2) The two threads permit use of two cores to perform the replay thus making it less likely that cpu is the replay bottleneck.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field and Description
(package private) com.sleepycat.je.rep.impl.node.Replica.ReplayExitType	exitRequest Set asynchronously when a shutdown is being requested.

Fields inherited from class com.sleepycat.je.utilint.StoppableThread

envImpl

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Replica.ReplayThread(EnvironmentImpl envImpl, java.lang.String threadName)

Method Summary

Methods

Modifier and Type	Method and Description
protected java.util.logging.Logger	getLogger()
protected int	initiateSoftShutdown() Threads that use shutdownThread() must define this method.
void	run()

Methods inherited from class com.sleepycat.je.utilint.StoppableThread

cleanup, getSavedShutdownException, getTotalCpuTime, getTotalUserTime, isShutdown, saveShutdownException, setExceptionListener, shutdownDone, shutdownThread

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

exitRequest

volatile com.sleepycat.je.rep.impl.node.Replica.ReplayExitType exitRequest

Set asynchronously when a shutdown is being requested.

Constructor Detail

Replica.ReplayThread

protected Replica.ReplayThread(EnvironmentImpl envImpl,
                    java.lang.String threadName)

Method Detail

initiateSoftShutdown

protected int initiateSoftShutdown()

Description copied from class: StoppableThread

Threads that use shutdownThread() must define this method. It's invoked by shutdownThread as an attempt at a soft shutdown. This method makes provisions for this thread to exit on its own. The technique used to make the thread exit can vary based upon the nature of the service being provided by the thread. For example, the thread may be known to poll some shutdown flag on a periodic basis, or it may detect that a channel that it waits on has been closed by this method.

Overrides:

initiateSoftShutdown in class StoppableThread

Returns:

the amount of time in ms that the shutdownThread method will wait for the thread to exit. A -ve value means that the method will not wait. A zero value means it will wait indefinitely.

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

getLogger

protected java.util.logging.Logger getLogger()

Specified by:

getLogger in class StoppableThread

Returns:

a logger to use when logging uncaught exceptions.