Uses of Package
org.apache.hadoop.hbase.io.hfile.bucket
Package
Description
Provides implementations of
HFile
and HFile
BlockCache
.Provides
BucketCache
, an implementation of
BlockCache
.-
ClassDescriptionBucketCache 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. -
ClassDescriptionThis class is used to allocate a block with specified size and free the block when evicting.Statistics to give a glimpse into the distribution of BucketCache objects.Thrown by
BucketAllocator
BucketCache usesBucketAllocator
to allocate/free blocks, and uses BucketCache#ramCache and BucketCache#backingMap in order to determine if a given element is in the cache.Wrapped the delegate ConcurrentMap with maintaining its block's reference count.Block Entry stored in the memory with key,data and so onClass that implements cache metrics for bucket cache.Item in cache.A memory-bound queue that will grow until an element brings total size larger than maxSize.Thrown byBucketAllocator.allocateBlock(int)
when cache is full for the requested sizeIO engine that stores data to a file on the specified file system using memory mapping mechanismA class implementing IOEngine interface supports data services forBucketCache
.A class implementing PersistentIOEngine interface supports file integrity verification forBucketCache
which use persistent IOEngine -
ClassDescriptionBucketCache 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.