@InterfaceAudience.LimitedPrivate(value="Configuration") public class InclusiveCombinedBlockCache extends CombinedBlockCache implements BlockCache
CombinedBlockCache.CombinedCacheStatscombinedCacheStats, l2Cache, lruCache| Constructor and Description |
|---|
InclusiveCombinedBlockCache(LruBlockCache l1,
BlockCache l2) |
| Modifier and Type | Method and Description |
|---|---|
void |
cacheBlock(BlockCacheKey cacheKey,
Cacheable buf,
boolean inMemory,
boolean cacheDataInL1)
Add block to cache.
|
Cacheable |
getBlock(BlockCacheKey cacheKey,
boolean caching,
boolean repeat,
boolean updateCacheMetrics)
Fetch block from cache.
|
cacheBlock, evictBlock, evictBlocksByHfileName, getBlockCaches, getBlockCount, getCurrentSize, getFreeSize, getStats, heapSize, iterator, setMaxSize, shutdown, sizeclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitcacheBlock, evictBlock, evictBlocksByHfileName, getBlockCaches, getBlockCount, getCurrentSize, getFreeSize, getStats, iterator, shutdown, sizepublic InclusiveCombinedBlockCache(LruBlockCache l1, BlockCache l2)
public Cacheable getBlock(BlockCacheKey cacheKey, boolean caching, boolean repeat, boolean updateCacheMetrics)
BlockCachegetBlock in interface BlockCachegetBlock in class CombinedBlockCachecacheKey - Block to fetch.caching - Whether this request has caching enabled (used for stats)repeat - Whether this is a repeat lookup for the same block
(used to avoid double counting cache misses when doing double-check locking)updateCacheMetrics - Whether to update cache metrics or notpublic void cacheBlock(BlockCacheKey cacheKey, Cacheable buf, boolean inMemory, boolean cacheDataInL1)
BlockCachecacheBlock in interface BlockCachecacheBlock in class CombinedBlockCachecacheKey - The block's cache key.buf - The block contents wrapped in a ByteBuffer.inMemory - Whether block should be treated as in-memory. This parameter is only useful for
the L1 lru cache.cacheDataInL1 - This is totally ignored.Copyright © 2007–2019 The Apache Software Foundation. All rights reserved.