Uses of Interface
org.apache.hadoop.hbase.io.hfile.BlockCache

Packages that use BlockCache

Package	Description
org.apache.hadoop.hbase.io.hfile	Provides implementations of HFile and HFile BlockCache.
org.apache.hadoop.hbase.io.hfile.bucket	Provides BucketCache, an implementation of BlockCache.
org.apache.hadoop.hbase.regionserver

Uses of BlockCache in org.apache.hadoop.hbase.io.hfile

Subinterfaces of BlockCache in org.apache.hadoop.hbase.io.hfile

Modifier and Type	Interface and Description
interface	FirstLevelBlockCache In-memory BlockCache that may be backed by secondary layer(s).
interface	ResizableBlockCache BlockCache which is resizable.

Classes in org.apache.hadoop.hbase.io.hfile that implement BlockCache

Modifier and Type	Class and Description
class	CombinedBlockCache CombinedBlockCache is an abstraction layer that combines FirstLevelBlockCache and BucketCache.
class	InclusiveCombinedBlockCache
class	IndexOnlyLruBlockCache An on heap block cache implementation extended LruBlockCache and only cache index block.
class	LruAdaptiveBlockCache This realisation improve performance of classical LRU cache up to 3 times via reduce GC job.
class	LruBlockCache A block cache implementation that is memory-aware using HeapSize, memory-bound using an LRU eviction algorithm, and concurrent: backed by a ConcurrentHashMap and with a non-blocking eviction thread giving constant-time LruBlockCache.cacheBlock(org.apache.hadoop.hbase.io.hfile.BlockCacheKey, org.apache.hadoop.hbase.io.hfile.Cacheable, boolean) and LruBlockCache.getBlock(org.apache.hadoop.hbase.io.hfile.BlockCacheKey, boolean, boolean, boolean) operations.
class	MemcachedBlockCache Class to store blocks into memcached.
class	TinyLfuBlockCache A block cache that is memory-aware using HeapSize, memory bounded using the W-TinyLFU eviction algorithm, and concurrent.

Fields in org.apache.hadoop.hbase.io.hfile declared as BlockCache

Modifier and Type	Field and Description
(package private) BlockCache[]	BlockCachesIterator.bcs
private BlockCache	CacheConfig.blockCache
protected BlockCache	CombinedBlockCache.l2Cache
private BlockCache	TinyLfuBlockCache.victimCache
private BlockCache	LruBlockCache.victimHandler Where to send victims (blocks evicted/missing from the cache).
private BlockCache	LruAdaptiveBlockCache.victimHandler Where to send victims (blocks evicted/missing from the cache).

Fields in org.apache.hadoop.hbase.io.hfile with type parameters of type BlockCache

Modifier and Type	Field and Description
(package private) Class<? extends BlockCache>	BlockCacheFactory.ExternalBlockCaches.clazz

Methods in org.apache.hadoop.hbase.io.hfile that return BlockCache

Modifier and Type	Method and Description
static BlockCache	BlockCacheFactory.createBlockCache(org.apache.hadoop.conf.Configuration conf)
private static BlockCache	BlockCacheFactory.createExternalBlockcache(org.apache.hadoop.conf.Configuration c)
BlockCache[]	LruBlockCache.getBlockCaches()
BlockCache[]	LruAdaptiveBlockCache.getBlockCaches()
BlockCache[]	BlockCache.getBlockCaches() Returns The list of sub blockcaches that make up this one; returns null if no sub caches.
BlockCache[]	TinyLfuBlockCache.getBlockCaches()
BlockCache[]	CombinedBlockCache.getBlockCaches()
BlockCache[]	MemcachedBlockCache.getBlockCaches()
BlockCache	CombinedBlockCache.getSecondLevelCache()

Methods in org.apache.hadoop.hbase.io.hfile that return types with arguments of type BlockCache

Modifier and Type	Method and Description
Optional<BlockCache>	CacheConfig.getBlockCache() Returns the block cache.

Methods in org.apache.hadoop.hbase.io.hfile with parameters of type BlockCache

Modifier and Type	Method and Description
static BlockCacheUtil.CachedBlocksByFile	BlockCacheUtil.getLoadedCachedBlocksByFile(org.apache.hadoop.conf.Configuration conf, BlockCache bc) Get a BlockCacheUtil.CachedBlocksByFile instance and load it up by iterating content in BlockCache.
private void	HFileReaderImpl.returnAndEvictBlock(BlockCache cache, BlockCacheKey cacheKey, Cacheable block)
void	LruBlockCache.setVictimCache(BlockCache victimCache)
void	LruAdaptiveBlockCache.setVictimCache(BlockCache victimCache)
void	FirstLevelBlockCache.setVictimCache(BlockCache victimCache) Specifies the secondary cache.
void	TinyLfuBlockCache.setVictimCache(BlockCache victimCache)
static boolean	BlockCacheUtil.shouldReplaceExistingCacheBlock(BlockCache blockCache, BlockCacheKey cacheKey, Cacheable newBlock) Because of the region splitting, it's possible that the split key locate in the middle of a block.
static String	BlockCacheUtil.toJSON(BlockCache bc) Returns JSON string of bc content.

Constructors in org.apache.hadoop.hbase.io.hfile with parameters of type BlockCache

Constructor and Description
BlockCachesIterator(BlockCache[] blockCaches)
CacheConfig(org.apache.hadoop.conf.Configuration conf, BlockCache blockCache)
CacheConfig(org.apache.hadoop.conf.Configuration conf, ColumnFamilyDescriptor family, BlockCache blockCache, ByteBuffAllocator byteBuffAllocator) Create a cache configuration using the specified configuration object and family descriptor.
CombinedBlockCache(FirstLevelBlockCache l1Cache, BlockCache l2Cache)
InclusiveCombinedBlockCache(FirstLevelBlockCache l1, BlockCache l2)

Constructor parameters in org.apache.hadoop.hbase.io.hfile with type arguments of type BlockCache

Constructor and Description
ExternalBlockCaches(Class<? extends BlockCache> clazz)

Uses of BlockCache in org.apache.hadoop.hbase.io.hfile.bucket

Classes in org.apache.hadoop.hbase.io.hfile.bucket that implement BlockCache

Modifier and Type	Class and Description
class	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.

Methods in org.apache.hadoop.hbase.io.hfile.bucket that return BlockCache

Modifier and Type	Method and Description
BlockCache[]	BucketCache.getBlockCaches()

Uses of BlockCache in org.apache.hadoop.hbase.regionserver

Fields in org.apache.hadoop.hbase.regionserver declared as BlockCache

Modifier and Type	Field and Description
private BlockCache	MetricsRegionServerWrapperImpl.blockCache
private BlockCache	HRegion.blockCache
private BlockCache	HRegionServer.blockCache
private BlockCache	MetricsRegionServerWrapperImpl.l1Cache
private BlockCache	MetricsRegionServerWrapperImpl.l2Cache

Methods in org.apache.hadoop.hbase.regionserver that return BlockCache

Modifier and Type	Method and Description
BlockCache	HRegion.getBlockCache()

Methods in org.apache.hadoop.hbase.regionserver that return types with arguments of type BlockCache

Modifier and Type	Method and Description
Optional<BlockCache>	RegionServerServices.getBlockCache() Returns The block cache instance.
Optional<BlockCache>	HRegionServer.getBlockCache() May be null if this is a master which not carry table.

Methods in org.apache.hadoop.hbase.regionserver with parameters of type BlockCache

Modifier and Type	Method and Description
void	HRegion.setBlockCache(BlockCache blockCache) Only used for unit test which doesn't start region server.
private ResizableBlockCache	HeapMemoryManager.toResizableBlockCache(BlockCache blockCache)

Constructors in org.apache.hadoop.hbase.regionserver with parameters of type BlockCache

Constructor and Description
HeapMemoryManager(BlockCache blockCache, FlushRequester memStoreFlusher, Server server, RegionServerAccounting regionServerAccounting)