org.egothor.dir

Class IndexCleaner

java.lang.Object

java.lang.Thread

org.egothor.dir.IndexCleaner

All Implemented Interfaces:

Runnable

public class IndexCleaner
extends Thread

IndexCleaner is thread that locks an index directory and performs a clean up. That means according to deadBarrels list (merge out barrels that are kept alive only for readers that may have opened them) and current index constancy requests deletes all really dead barrels, not used by anyone. It takes oldest valid const request, and according to its creation time it goes over dead barrels list. Every dead barrel is connected with a commit time when it was merged out. All barrels that were merged out before the oldest const request are deleted.

Author:

Jakub Podhorny

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
IndexCleaner(String location, String lockServerConfigFilename)

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args)
void	run()

Methods inherited from class java.lang.Thread

activeCount, checkAccess, 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, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IndexCleaner

public IndexCleaner(String location,
                    String lockServerConfigFilename)

Parameters:

location -

Method Detail

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

main

public static void main(String[] args)

Parameters:

args -