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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/27 14:52:51 UTC
[19/26] hbase-site git commit: Published site at
6f15cecaed2f1f76bfe1880b7c578ed369daa5d5.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/dccdd274/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
index bf5af92..f32b223 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/CacheConfig.html
@@ -223,7 +223,7 @@
<span class="sourceLineNo">215</span> * @param family column family configuration<a name="line.215"></a>
<span class="sourceLineNo">216</span> */<a name="line.216"></a>
<span class="sourceLineNo">217</span> public CacheConfig(Configuration conf, ColumnFamilyDescriptor family) {<a name="line.217"></a>
-<span class="sourceLineNo">218</span> this(CacheConfig.instantiateBlockCache(conf),<a name="line.218"></a>
+<span class="sourceLineNo">218</span> this(GLOBAL_BLOCK_CACHE_INSTANCE,<a name="line.218"></a>
<span class="sourceLineNo">219</span> conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ)<a name="line.219"></a>
<span class="sourceLineNo">220</span> && family.isBlockCacheEnabled(),<a name="line.220"></a>
<span class="sourceLineNo">221</span> family.isInMemory(),<a name="line.221"></a>
@@ -253,463 +253,443 @@
<span class="sourceLineNo">245</span> * @param conf hbase configuration<a name="line.245"></a>
<span class="sourceLineNo">246</span> */<a name="line.246"></a>
<span class="sourceLineNo">247</span> public CacheConfig(Configuration conf) {<a name="line.247"></a>
-<span class="sourceLineNo">248</span> this(conf, true);<a name="line.248"></a>
-<span class="sourceLineNo">249</span> }<a name="line.249"></a>
-<span class="sourceLineNo">250</span><a name="line.250"></a>
-<span class="sourceLineNo">251</span> public CacheConfig(Configuration conf, boolean enableBlockCache) {<a name="line.251"></a>
-<span class="sourceLineNo">252</span> this(conf, enableBlockCache,<a name="line.252"></a>
-<span class="sourceLineNo">253</span> conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ),<a name="line.253"></a>
-<span class="sourceLineNo">254</span> DEFAULT_IN_MEMORY, // This is a family-level setting so can't be set<a name="line.254"></a>
-<span class="sourceLineNo">255</span> // strictly from conf<a name="line.255"></a>
-<span class="sourceLineNo">256</span> conf.getBoolean(CACHE_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_DATA_ON_WRITE),<a name="line.256"></a>
-<span class="sourceLineNo">257</span> conf.getBoolean(CACHE_INDEX_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_INDEXES_ON_WRITE),<a name="line.257"></a>
-<span class="sourceLineNo">258</span> conf.getBoolean(CACHE_BLOOM_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_BLOOMS_ON_WRITE),<a name="line.258"></a>
-<span class="sourceLineNo">259</span> conf.getBoolean(EVICT_BLOCKS_ON_CLOSE_KEY, DEFAULT_EVICT_ON_CLOSE),<a name="line.259"></a>
-<span class="sourceLineNo">260</span> conf.getBoolean(CACHE_DATA_BLOCKS_COMPRESSED_KEY, DEFAULT_CACHE_DATA_COMPRESSED),<a name="line.260"></a>
-<span class="sourceLineNo">261</span> conf.getBoolean(PREFETCH_BLOCKS_ON_OPEN_KEY, DEFAULT_PREFETCH_ON_OPEN),<a name="line.261"></a>
-<span class="sourceLineNo">262</span> conf.getBoolean(DROP_BEHIND_CACHE_COMPACTION_KEY, DROP_BEHIND_CACHE_COMPACTION_DEFAULT));<a name="line.262"></a>
-<span class="sourceLineNo">263</span> LOG.info("Created cacheConfig: " + this);<a name="line.263"></a>
-<span class="sourceLineNo">264</span> }<a name="line.264"></a>
-<span class="sourceLineNo">265</span><a name="line.265"></a>
-<span class="sourceLineNo">266</span> private CacheConfig(Configuration conf, boolean enableBlockCache,<a name="line.266"></a>
-<span class="sourceLineNo">267</span> final boolean cacheDataOnRead, final boolean inMemory,<a name="line.267"></a>
-<span class="sourceLineNo">268</span> final boolean cacheDataOnWrite, final boolean cacheIndexesOnWrite,<a name="line.268"></a>
-<span class="sourceLineNo">269</span> final boolean cacheBloomsOnWrite, final boolean evictOnClose,<a name="line.269"></a>
-<span class="sourceLineNo">270</span> final boolean cacheDataCompressed, final boolean prefetchOnOpen,<a name="line.270"></a>
-<span class="sourceLineNo">271</span> final boolean dropBehindCompaction) {<a name="line.271"></a>
-<span class="sourceLineNo">272</span> if (enableBlockCache) {<a name="line.272"></a>
-<span class="sourceLineNo">273</span> this.blockCache = CacheConfig.instantiateBlockCache(conf);<a name="line.273"></a>
-<span class="sourceLineNo">274</span> } else {<a name="line.274"></a>
-<span class="sourceLineNo">275</span> this.blockCache = null;<a name="line.275"></a>
-<span class="sourceLineNo">276</span> }<a name="line.276"></a>
-<span class="sourceLineNo">277</span> this.cacheDataOnRead = cacheDataOnRead;<a name="line.277"></a>
-<span class="sourceLineNo">278</span> this.inMemory = inMemory;<a name="line.278"></a>
-<span class="sourceLineNo">279</span> this.cacheDataOnWrite = cacheDataOnWrite;<a name="line.279"></a>
-<span class="sourceLineNo">280</span> this.cacheIndexesOnWrite = cacheIndexesOnWrite;<a name="line.280"></a>
-<span class="sourceLineNo">281</span> this.cacheBloomsOnWrite = cacheBloomsOnWrite;<a name="line.281"></a>
-<span class="sourceLineNo">282</span> this.evictOnClose = evictOnClose;<a name="line.282"></a>
-<span class="sourceLineNo">283</span> this.cacheDataCompressed = cacheDataCompressed;<a name="line.283"></a>
-<span class="sourceLineNo">284</span> this.prefetchOnOpen = prefetchOnOpen;<a name="line.284"></a>
-<span class="sourceLineNo">285</span> this.dropBehindCompaction = dropBehindCompaction;<a name="line.285"></a>
-<span class="sourceLineNo">286</span> }<a name="line.286"></a>
-<span class="sourceLineNo">287</span><a name="line.287"></a>
-<span class="sourceLineNo">288</span> /**<a name="line.288"></a>
-<span class="sourceLineNo">289</span> * Create a block cache configuration with the specified cache and configuration parameters.<a name="line.289"></a>
-<span class="sourceLineNo">290</span> * @param blockCache reference to block cache, null if completely disabled<a name="line.290"></a>
-<span class="sourceLineNo">291</span> * @param cacheDataOnRead whether DATA blocks should be cached on read (we always cache INDEX<a name="line.291"></a>
-<span class="sourceLineNo">292</span> * blocks and BLOOM blocks; this cannot be disabled).<a name="line.292"></a>
-<span class="sourceLineNo">293</span> * @param inMemory whether blocks should be flagged as in-memory<a name="line.293"></a>
-<span class="sourceLineNo">294</span> * @param cacheDataOnWrite whether data blocks should be cached on write<a name="line.294"></a>
-<span class="sourceLineNo">295</span> * @param cacheIndexesOnWrite whether index blocks should be cached on write<a name="line.295"></a>
-<span class="sourceLineNo">296</span> * @param cacheBloomsOnWrite whether blooms should be cached on write<a name="line.296"></a>
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-<span class="sourceLineNo">299</span> * @param prefetchOnOpen whether to prefetch blocks upon open<a name="line.299"></a>
-<span class="sourceLineNo">300</span> * @param dropBehindCompaction indicate that we should set drop behind to true when open a store<a name="line.300"></a>
-<span class="sourceLineNo">301</span> * file reader for compaction<a name="line.301"></a>
-<span class="sourceLineNo">302</span> */<a name="line.302"></a>
-<span class="sourceLineNo">303</span> @VisibleForTesting<a name="line.303"></a>
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-<span class="sourceLineNo">305</span> final boolean cacheDataOnRead, final boolean inMemory,<a name="line.305"></a>
-<span class="sourceLineNo">306</span> final boolean cacheDataOnWrite, final boolean cacheIndexesOnWrite,<a name="line.306"></a>
-<span class="sourceLineNo">307</span> final boolean cacheBloomsOnWrite, final boolean evictOnClose,<a name="line.307"></a>
-<span class="sourceLineNo">308</span> final boolean cacheDataCompressed, final boolean prefetchOnOpen,<a name="line.308"></a>
-<span class="sourceLineNo">309</span> final boolean dropBehindCompaction) {<a name="line.309"></a>
-<span class="sourceLineNo">310</span> this.blockCache = blockCache;<a name="line.310"></a>
-<span class="sourceLineNo">311</span> this.cacheDataOnRead = cacheDataOnRead;<a name="line.311"></a>
-<span class="sourceLineNo">312</span> this.inMemory = inMemory;<a name="line.312"></a>
-<span class="sourceLineNo">313</span> this.cacheDataOnWrite = cacheDataOnWrite;<a name="line.313"></a>
-<span class="sourceLineNo">314</span> this.cacheIndexesOnWrite = cacheIndexesOnWrite;<a name="line.314"></a>
-<span class="sourceLineNo">315</span> this.cacheBloomsOnWrite = cacheBloomsOnWrite;<a name="line.315"></a>
-<span class="sourceLineNo">316</span> this.evictOnClose = evictOnClose;<a name="line.316"></a>
-<span class="sourceLineNo">317</span> this.cacheDataCompressed = cacheDataCompressed;<a name="line.317"></a>
-<span class="sourceLineNo">318</span> this.prefetchOnOpen = prefetchOnOpen;<a name="line.318"></a>
-<span class="sourceLineNo">319</span> this.dropBehindCompaction = dropBehindCompaction;<a name="line.319"></a>
-<span class="sourceLineNo">320</span> }<a name="line.320"></a>
-<span class="sourceLineNo">321</span><a name="line.321"></a>
-<span class="sourceLineNo">322</span> /**<a name="line.322"></a>
-<span class="sourceLineNo">323</span> * Constructs a cache configuration copied from the specified configuration.<a name="line.323"></a>
-<span class="sourceLineNo">324</span> * @param cacheConf<a name="line.324"></a>
-<span class="sourceLineNo">325</span> */<a name="line.325"></a>
-<span class="sourceLineNo">326</span> public CacheConfig(CacheConfig cacheConf) {<a name="line.326"></a>
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-<span class="sourceLineNo">328</span> cacheConf.cacheDataOnWrite, cacheConf.cacheIndexesOnWrite,<a name="line.328"></a>
-<span class="sourceLineNo">329</span> cacheConf.cacheBloomsOnWrite, cacheConf.evictOnClose,<a name="line.329"></a>
-<span class="sourceLineNo">330</span> cacheConf.cacheDataCompressed, cacheConf.prefetchOnOpen,<a name="line.330"></a>
-<span class="sourceLineNo">331</span> cacheConf.dropBehindCompaction);<a name="line.331"></a>
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-<span class="sourceLineNo">333</span><a name="line.333"></a>
-<span class="sourceLineNo">334</span> private CacheConfig() {<a name="line.334"></a>
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-<span class="sourceLineNo">339</span> * Checks whether the block cache is enabled.<a name="line.339"></a>
-<span class="sourceLineNo">340</span> */<a name="line.340"></a>
-<span class="sourceLineNo">341</span> public boolean isBlockCacheEnabled() {<a name="line.341"></a>
-<span class="sourceLineNo">342</span> return this.blockCache != null;<a name="line.342"></a>
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-<span class="sourceLineNo">347</span> * @return the block cache, or null if caching is completely disabled<a name="line.347"></a>
-<span class="sourceLineNo">348</span> */<a name="line.348"></a>
-<span class="sourceLineNo">349</span> public BlockCache getBlockCache() {<a name="line.349"></a>
-<span class="sourceLineNo">350</span> return this.blockCache;<a name="line.350"></a>
-<span class="sourceLineNo">351</span> }<a name="line.351"></a>
-<span class="sourceLineNo">352</span><a name="line.352"></a>
-<span class="sourceLineNo">353</span> /**<a name="line.353"></a>
-<span class="sourceLineNo">354</span> * Returns whether the DATA blocks of this HFile should be cached on read or not (we always<a name="line.354"></a>
-<span class="sourceLineNo">355</span> * cache the meta blocks, the INDEX and BLOOM blocks).<a name="line.355"></a>
-<span class="sourceLineNo">356</span> * @return true if blocks should be cached on read, false if not<a name="line.356"></a>
+<span class="sourceLineNo">248</span> this(GLOBAL_BLOCK_CACHE_INSTANCE,<a name="line.248"></a>
+<span class="sourceLineNo">249</span> conf.getBoolean(CACHE_DATA_ON_READ_KEY, DEFAULT_CACHE_DATA_ON_READ),<a name="line.249"></a>
+<span class="sourceLineNo">250</span> DEFAULT_IN_MEMORY, // This is a family-level setting so can't be set<a name="line.250"></a>
+<span class="sourceLineNo">251</span> // strictly from conf<a name="line.251"></a>
+<span class="sourceLineNo">252</span> conf.getBoolean(CACHE_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_DATA_ON_WRITE),<a name="line.252"></a>
+<span class="sourceLineNo">253</span> conf.getBoolean(CACHE_INDEX_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_INDEXES_ON_WRITE),<a name="line.253"></a>
+<span class="sourceLineNo">254</span> conf.getBoolean(CACHE_BLOOM_BLOCKS_ON_WRITE_KEY, DEFAULT_CACHE_BLOOMS_ON_WRITE),<a name="line.254"></a>
+<span class="sourceLineNo">255</span> conf.getBoolean(EVICT_BLOCKS_ON_CLOSE_KEY, DEFAULT_EVICT_ON_CLOSE),<a name="line.255"></a>
+<span class="sourceLineNo">256</span> conf.getBoolean(CACHE_DATA_BLOCKS_COMPRESSED_KEY, DEFAULT_CACHE_DATA_COMPRESSED),<a name="line.256"></a>
+<span class="sourceLineNo">257</span> conf.getBoolean(PREFETCH_BLOCKS_ON_OPEN_KEY, DEFAULT_PREFETCH_ON_OPEN),<a name="line.257"></a>
+<span class="sourceLineNo">258</span> conf.getBoolean(DROP_BEHIND_CACHE_COMPACTION_KEY, DROP_BEHIND_CACHE_COMPACTION_DEFAULT));<a name="line.258"></a>
+<span class="sourceLineNo">259</span> LOG.info("Created cacheConfig: " + this);<a name="line.259"></a>
+<span class="sourceLineNo">260</span> }<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span> /**<a name="line.262"></a>
+<span class="sourceLineNo">263</span> * Create a block cache configuration with the specified cache and configuration parameters.<a name="line.263"></a>
+<span class="sourceLineNo">264</span> * @param blockCache reference to block cache, null if completely disabled<a name="line.264"></a>
+<span class="sourceLineNo">265</span> * @param cacheDataOnRead whether DATA blocks should be cached on read (we always cache INDEX<a name="line.265"></a>
+<span class="sourceLineNo">266</span> * blocks and BLOOM blocks; this cannot be disabled).<a name="line.266"></a>
+<span class="sourceLineNo">267</span> * @param inMemory whether blocks should be flagged as in-memory<a name="line.267"></a>
+<span class="sourceLineNo">268</span> * @param cacheDataOnWrite whether data blocks should be cached on write<a name="line.268"></a>
+<span class="sourceLineNo">269</span> * @param cacheIndexesOnWrite whether index blocks should be cached on write<a name="line.269"></a>
+<span class="sourceLineNo">270</span> * @param cacheBloomsOnWrite whether blooms should be cached on write<a name="line.270"></a>
+<span class="sourceLineNo">271</span> * @param evictOnClose whether blocks should be evicted when HFile is closed<a name="line.271"></a>
+<span class="sourceLineNo">272</span> * @param cacheDataCompressed whether to store blocks as compressed in the cache<a name="line.272"></a>
+<span class="sourceLineNo">273</span> * @param prefetchOnOpen whether to prefetch blocks upon open<a name="line.273"></a>
+<span class="sourceLineNo">274</span> * @param dropBehindCompaction indicate that we should set drop behind to true when open a store<a name="line.274"></a>
+<span class="sourceLineNo">275</span> * file reader for compaction<a name="line.275"></a>
+<span class="sourceLineNo">276</span> */<a name="line.276"></a>
+<span class="sourceLineNo">277</span> @VisibleForTesting<a name="line.277"></a>
+<span class="sourceLineNo">278</span> CacheConfig(final BlockCache blockCache,<a name="line.278"></a>
+<span class="sourceLineNo">279</span> final boolean cacheDataOnRead, final boolean inMemory,<a name="line.279"></a>
+<span class="sourceLineNo">280</span> final boolean cacheDataOnWrite, final boolean cacheIndexesOnWrite,<a name="line.280"></a>
+<span class="sourceLineNo">281</span> final boolean cacheBloomsOnWrite, final boolean evictOnClose,<a name="line.281"></a>
+<span class="sourceLineNo">282</span> final boolean cacheDataCompressed, final boolean prefetchOnOpen,<a name="line.282"></a>
+<span class="sourceLineNo">283</span> final boolean dropBehindCompaction) {<a name="line.283"></a>
+<span class="sourceLineNo">284</span> this.blockCache = blockCache;<a name="line.284"></a>
+<span class="sourceLineNo">285</span> this.cacheDataOnRead = cacheDataOnRead;<a name="line.285"></a>
+<span class="sourceLineNo">286</span> this.inMemory = inMemory;<a name="line.286"></a>
+<span class="sourceLineNo">287</span> this.cacheDataOnWrite = cacheDataOnWrite;<a name="line.287"></a>
+<span class="sourceLineNo">288</span> this.cacheIndexesOnWrite = cacheIndexesOnWrite;<a name="line.288"></a>
+<span class="sourceLineNo">289</span> this.cacheBloomsOnWrite = cacheBloomsOnWrite;<a name="line.289"></a>
+<span class="sourceLineNo">290</span> this.evictOnClose = evictOnClose;<a name="line.290"></a>
+<span class="sourceLineNo">291</span> this.cacheDataCompressed = cacheDataCompressed;<a name="line.291"></a>
+<span class="sourceLineNo">292</span> this.prefetchOnOpen = prefetchOnOpen;<a name="line.292"></a>
+<span class="sourceLineNo">293</span> this.dropBehindCompaction = dropBehindCompaction;<a name="line.293"></a>
+<span class="sourceLineNo">294</span> }<a name="line.294"></a>
+<span class="sourceLineNo">295</span><a name="line.295"></a>
+<span class="sourceLineNo">296</span> /**<a name="line.296"></a>
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+<span class="sourceLineNo">298</span> * @param cacheConf<a name="line.298"></a>
+<span class="sourceLineNo">299</span> */<a name="line.299"></a>
+<span class="sourceLineNo">300</span> public CacheConfig(CacheConfig cacheConf) {<a name="line.300"></a>
+<span class="sourceLineNo">301</span> this(cacheConf.blockCache, cacheConf.cacheDataOnRead, cacheConf.inMemory,<a name="line.301"></a>
+<span class="sourceLineNo">302</span> cacheConf.cacheDataOnWrite, cacheConf.cacheIndexesOnWrite,<a name="line.302"></a>
+<span class="sourceLineNo">303</span> cacheConf.cacheBloomsOnWrite, cacheConf.evictOnClose,<a name="line.303"></a>
+<span class="sourceLineNo">304</span> cacheConf.cacheDataCompressed, cacheConf.prefetchOnOpen,<a name="line.304"></a>
+<span class="sourceLineNo">305</span> cacheConf.dropBehindCompaction);<a name="line.305"></a>
+<span class="sourceLineNo">306</span> }<a name="line.306"></a>
+<span class="sourceLineNo">307</span><a name="line.307"></a>
+<span class="sourceLineNo">308</span> private CacheConfig() {<a name="line.308"></a>
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+<span class="sourceLineNo">311</span><a name="line.311"></a>
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+<span class="sourceLineNo">314</span> */<a name="line.314"></a>
+<span class="sourceLineNo">315</span> public boolean isBlockCacheEnabled() {<a name="line.315"></a>
+<span class="sourceLineNo">316</span> return this.blockCache != null;<a name="line.316"></a>
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+<span class="sourceLineNo">318</span><a name="line.318"></a>
+<span class="sourceLineNo">319</span> /**<a name="line.319"></a>
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+<span class="sourceLineNo">322</span> */<a name="line.322"></a>
+<span class="sourceLineNo">323</span> public BlockCache getBlockCache() {<a name="line.323"></a>
+<span class="sourceLineNo">324</span> return this.blockCache;<a name="line.324"></a>
+<span class="sourceLineNo">325</span> }<a name="line.325"></a>
+<span class="sourceLineNo">326</span><a name="line.326"></a>
+<span class="sourceLineNo">327</span> /**<a name="line.327"></a>
+<span class="sourceLineNo">328</span> * Returns whether the DATA blocks of this HFile should be cached on read or not (we always<a name="line.328"></a>
+<span class="sourceLineNo">329</span> * cache the meta blocks, the INDEX and BLOOM blocks).<a name="line.329"></a>
+<span class="sourceLineNo">330</span> * @return true if blocks should be cached on read, false if not<a name="line.330"></a>
+<span class="sourceLineNo">331</span> */<a name="line.331"></a>
+<span class="sourceLineNo">332</span> public boolean shouldCacheDataOnRead() {<a name="line.332"></a>
+<span class="sourceLineNo">333</span> return isBlockCacheEnabled() && cacheDataOnRead;<a name="line.333"></a>
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+<span class="sourceLineNo">335</span><a name="line.335"></a>
+<span class="sourceLineNo">336</span> public boolean shouldDropBehindCompaction() {<a name="line.336"></a>
+<span class="sourceLineNo">337</span> return dropBehindCompaction;<a name="line.337"></a>
+<span class="sourceLineNo">338</span> }<a name="line.338"></a>
+<span class="sourceLineNo">339</span><a name="line.339"></a>
+<span class="sourceLineNo">340</span> /**<a name="line.340"></a>
+<span class="sourceLineNo">341</span> * Should we cache a block of a particular category? We always cache<a name="line.341"></a>
+<span class="sourceLineNo">342</span> * important blocks such as index blocks, as long as the block cache is<a name="line.342"></a>
+<span class="sourceLineNo">343</span> * available.<a name="line.343"></a>
+<span class="sourceLineNo">344</span> */<a name="line.344"></a>
+<span class="sourceLineNo">345</span> public boolean shouldCacheBlockOnRead(BlockCategory category) {<a name="line.345"></a>
+<span class="sourceLineNo">346</span> return isBlockCacheEnabled()<a name="line.346"></a>
+<span class="sourceLineNo">347</span> && (cacheDataOnRead ||<a name="line.347"></a>
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