org.apache.hadoop.filecache

类 TrackerDistributedCacheManager.BaseDirManager

java.lang.Object

org.apache.hadoop.filecache.TrackerDistributedCacheManager.BaseDirManager

封闭类:

TrackerDistributedCacheManager

protected class TrackerDistributedCacheManager.BaseDirManager
extends Object

This class holds properties of each base directories and is responsible for clean up unused cache files in base directories.

构造器概要

构造器

限定符	构造器和说明
protected	TrackerDistributedCacheManager.BaseDirManager()

方法概要

方法

限定符和类型	方法和说明
void	addCacheInfoUpdate(org.apache.hadoop.filecache.TrackerDistributedCacheManager.CacheStatus cacheStatus) Update the maps baseDirSize and baseDirNumberSubDir when adding cache.
void	deleteCacheInfoUpdate(org.apache.hadoop.filecache.TrackerDistributedCacheManager.CacheStatus cacheStatus) Decrement the size and sub directory count of the cache from baseDirSize and baseDirNumberSubDir.

从类继承的方法 java.lang.Object

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

构造器详细资料

TrackerDistributedCacheManager.BaseDirManager

protected TrackerDistributedCacheManager.BaseDirManager()

方法详细资料

deleteCacheInfoUpdate

public void deleteCacheInfoUpdate(org.apache.hadoop.filecache.TrackerDistributedCacheManager.CacheStatus cacheStatus)

Decrement the size and sub directory count of the cache from baseDirSize and baseDirNumberSubDir. Have to lock lcacheStatus before calling this.

参数:

cacheStatus - cache status of the cache is deleted

addCacheInfoUpdate

public void addCacheInfoUpdate(org.apache.hadoop.filecache.TrackerDistributedCacheManager.CacheStatus cacheStatus)

Update the maps baseDirSize and baseDirNumberSubDir when adding cache. Increase the size and sub directory count of the cache from baseDirSize and baseDirNumberSubDir. Have to lock lcacheStatus before calling this.

参数:

cacheStatus - cache status of the cache is added