Package org.apache.hadoop.hbase.io.hfile.bucket

• Interface Summary 

  Interface	Description
  IOEngine	A class implementing IOEngine interface supports data services for BucketCache.

• Class Summary 

  Class	Description
  BucketAllocator	This class is used to allocate a block with specified size and free the block when evicting.
  BucketAllocator.Bucket
  BucketAllocator.IndexStatistics
  BucketCache	BucketCache uses BucketAllocator to allocate/free blocks, and uses BucketCache.ramCache and BucketCache.backingMap in order to determine if a given element is in the cache.
  BucketCache.BucketEntry	Item in cache.
  BucketCache.RAMQueueEntry	Block Entry stored in the memory with key,data and so on
  BucketCache.StatisticsThread
  BucketCacheStats	Class that implements cache metrics for bucket cache.
  ByteBufferIOEngine	IO engine that stores data in memory using an array of ByteBuffers ByteBufferArray
  CachedEntryQueue	A memory-bound queue that will grow until an element brings total size larger than maxSize.
  FileIOEngine	IO engine that stores data to a file on the local file system.
  UniqueIndexMap<T>	Map from type T to int and vice-versa.

• Exception Summary 

  Exception	Description
  BucketAllocatorException	Thrown by BucketAllocator
  CacheFullException	Thrown by BucketAllocator.allocateBlock(int) when cache is full for the requested size

Package org.apache.hadoop.hbase.io.hfile.bucket Description