org.egothor.dir
Class IndexCleaner

java.lang.Object
  java.lang.Thread
      org.egothor.dir.IndexCleaner

All Implemented Interfaces:

java.lang.Runnable

public class IndexCleaner
extends java.lang.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

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

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

IndexCleaner(java.lang.String location, java.lang.String lockServerConfigFilename)

Method Summary

static void	main(java.lang.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

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

Constructor Detail

IndexCleaner

public IndexCleaner(java.lang.String location,
                    java.lang.String lockServerConfigFilename)

Parameters:

location -

Method Detail

run

public void run()

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

main

public static void main(java.lang.String[] args)

Parameters:

args -