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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/05/15 14:49:49 UTC
[06/50] hbase-site git commit: Published site at
26babcf013de696b899d76a3c39434b794440d8d.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/da4482ac/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.CachedItem.html
----------------------------------------------------------------------
diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.CachedItem.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.CachedItem.html
index 1774db3..2ab8397 100644
--- a/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.CachedItem.html
+++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/io/hfile/TestLruBlockCache.CachedItem.html
@@ -39,879 +39,933 @@
<span class="sourceLineNo">031</span>import org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.Waiter;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.io.hfile.LruBlockCache.EvictionThread;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.testclassification.IOTests;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.junit.ClassRule;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.junit.Test;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.junit.experimental.categories.Category;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>/**<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * Tests the concurrent LruBlockCache.<p><a name="line.46"></a>
-<span class="sourceLineNo">047</span> *<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * Tests will ensure it grows and shrinks in size properly,<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * evictions run when they're supposed to and do what they should,<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * and that cached blocks are accessible when expected to be.<a name="line.50"></a>
-<span class="sourceLineNo">051</span> */<a name="line.51"></a>
-<span class="sourceLineNo">052</span>@Category({IOTests.class, SmallTests.class})<a name="line.52"></a>
-<span class="sourceLineNo">053</span>public class TestLruBlockCache {<a name="line.53"></a>
-<span class="sourceLineNo">054</span><a name="line.54"></a>
-<span class="sourceLineNo">055</span> @ClassRule<a name="line.55"></a>
-<span class="sourceLineNo">056</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.56"></a>
-<span class="sourceLineNo">057</span> HBaseClassTestRule.forClass(TestLruBlockCache.class);<a name="line.57"></a>
-<span class="sourceLineNo">058</span><a name="line.58"></a>
-<span class="sourceLineNo">059</span> @Test<a name="line.59"></a>
-<span class="sourceLineNo">060</span> public void testCacheEvictionThreadSafe() throws Exception {<a name="line.60"></a>
-<span class="sourceLineNo">061</span> long maxSize = 100000;<a name="line.61"></a>
-<span class="sourceLineNo">062</span> int numBlocks = 9;<a name="line.62"></a>
-<span class="sourceLineNo">063</span> int testRuns = 10;<a name="line.63"></a>
-<span class="sourceLineNo">064</span> final long blockSize = calculateBlockSizeDefault(maxSize, numBlocks);<a name="line.64"></a>
-<span class="sourceLineNo">065</span> assertTrue("calculateBlockSize appears broken.", blockSize * numBlocks <= maxSize);<a name="line.65"></a>
-<span class="sourceLineNo">066</span><a name="line.66"></a>
-<span class="sourceLineNo">067</span> final Configuration conf = HBaseConfiguration.create();<a name="line.67"></a>
-<span class="sourceLineNo">068</span> final LruBlockCache cache = new LruBlockCache(maxSize, blockSize);<a name="line.68"></a>
-<span class="sourceLineNo">069</span> EvictionThread evictionThread = cache.getEvictionThread();<a name="line.69"></a>
-<span class="sourceLineNo">070</span> assertTrue(evictionThread != null);<a name="line.70"></a>
-<span class="sourceLineNo">071</span> while (!evictionThread.isEnteringRun()) {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> Thread.sleep(1);<a name="line.72"></a>
-<span class="sourceLineNo">073</span> }<a name="line.73"></a>
-<span class="sourceLineNo">074</span> final String hfileName = "hfile";<a name="line.74"></a>
-<span class="sourceLineNo">075</span> int threads = 10;<a name="line.75"></a>
-<span class="sourceLineNo">076</span> final int blocksPerThread = 5 * numBlocks;<a name="line.76"></a>
-<span class="sourceLineNo">077</span> for (int run = 0; run != testRuns; ++run) {<a name="line.77"></a>
-<span class="sourceLineNo">078</span> final AtomicInteger blockCount = new AtomicInteger(0);<a name="line.78"></a>
-<span class="sourceLineNo">079</span> ExecutorService service = Executors.newFixedThreadPool(threads);<a name="line.79"></a>
-<span class="sourceLineNo">080</span> for (int i = 0; i != threads; ++i) {<a name="line.80"></a>
-<span class="sourceLineNo">081</span> service.execute(new Runnable() {<a name="line.81"></a>
-<span class="sourceLineNo">082</span> @Override<a name="line.82"></a>
-<span class="sourceLineNo">083</span> public void run() {<a name="line.83"></a>
-<span class="sourceLineNo">084</span> for (int blockIndex = 0; blockIndex < blocksPerThread || (!cache.isEvictionInProgress()); ++blockIndex) {<a name="line.84"></a>
-<span class="sourceLineNo">085</span> CachedItem block = new CachedItem(hfileName, (int) blockSize, blockCount.getAndIncrement());<a name="line.85"></a>
-<span class="sourceLineNo">086</span> boolean inMemory = Math.random() > 0.5;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> cache.cacheBlock(block.cacheKey, block, inMemory);<a name="line.87"></a>
-<span class="sourceLineNo">088</span> }<a name="line.88"></a>
-<span class="sourceLineNo">089</span> cache.evictBlocksByHfileName(hfileName);<a name="line.89"></a>
-<span class="sourceLineNo">090</span> }<a name="line.90"></a>
-<span class="sourceLineNo">091</span> });<a name="line.91"></a>
-<span class="sourceLineNo">092</span> }<a name="line.92"></a>
-<span class="sourceLineNo">093</span> service.shutdown();<a name="line.93"></a>
-<span class="sourceLineNo">094</span> // The test may fail here if the evict thread frees the blocks too fast<a name="line.94"></a>
-<span class="sourceLineNo">095</span> service.awaitTermination(10, TimeUnit.MINUTES);<a name="line.95"></a>
-<span class="sourceLineNo">096</span> Waiter.waitFor(conf, 10000, 100, new ExplainingPredicate<Exception>() {<a name="line.96"></a>
-<span class="sourceLineNo">097</span> @Override<a name="line.97"></a>
-<span class="sourceLineNo">098</span> public boolean evaluate() throws Exception {<a name="line.98"></a>
-<span class="sourceLineNo">099</span> return cache.getBlockCount() == 0;<a name="line.99"></a>
-<span class="sourceLineNo">100</span> }<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span> @Override<a name="line.102"></a>
-<span class="sourceLineNo">103</span> public String explainFailure() throws Exception {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> return "Cache block count failed to return to 0";<a name="line.104"></a>
-<span class="sourceLineNo">105</span> }<a name="line.105"></a>
-<span class="sourceLineNo">106</span> });<a name="line.106"></a>
-<span class="sourceLineNo">107</span> assertEquals(0, cache.getBlockCount());<a name="line.107"></a>
-<span class="sourceLineNo">108</span> assertEquals(cache.getOverhead(), cache.getCurrentSize());<a name="line.108"></a>
-<span class="sourceLineNo">109</span> }<a name="line.109"></a>
-<span class="sourceLineNo">110</span> }<a name="line.110"></a>
-<span class="sourceLineNo">111</span> @Test<a name="line.111"></a>
-<span class="sourceLineNo">112</span> public void testBackgroundEvictionThread() throws Exception {<a name="line.112"></a>
-<span class="sourceLineNo">113</span> long maxSize = 100000;<a name="line.113"></a>
-<span class="sourceLineNo">114</span> int numBlocks = 9;<a name="line.114"></a>
-<span class="sourceLineNo">115</span> long blockSize = calculateBlockSizeDefault(maxSize, numBlocks);<a name="line.115"></a>
-<span class="sourceLineNo">116</span> assertTrue("calculateBlockSize appears broken.", blockSize * numBlocks <= maxSize);<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span> LruBlockCache cache = new LruBlockCache(maxSize,blockSize);<a name="line.118"></a>
-<span class="sourceLineNo">119</span> EvictionThread evictionThread = cache.getEvictionThread();<a name="line.119"></a>
-<span class="sourceLineNo">120</span> assertTrue(evictionThread != null);<a name="line.120"></a>
-<span class="sourceLineNo">121</span><a name="line.121"></a>
-<span class="sourceLineNo">122</span> CachedItem[] blocks = generateFixedBlocks(numBlocks + 1, blockSize, "block");<a name="line.122"></a>
-<span class="sourceLineNo">123</span><a name="line.123"></a>
-<span class="sourceLineNo">124</span> // Make sure eviction thread has entered run method<a name="line.124"></a>
-<span class="sourceLineNo">125</span> while (!evictionThread.isEnteringRun()) {<a name="line.125"></a>
-<span class="sourceLineNo">126</span> Thread.sleep(1);<a name="line.126"></a>
-<span class="sourceLineNo">127</span> }<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span> // Add all the blocks<a name="line.129"></a>
-<span class="sourceLineNo">130</span> for (CachedItem block : blocks) {<a name="line.130"></a>
-<span class="sourceLineNo">131</span> cache.cacheBlock(block.cacheKey, block);<a name="line.131"></a>
-<span class="sourceLineNo">132</span> }<a name="line.132"></a>
-<span class="sourceLineNo">133</span><a name="line.133"></a>
-<span class="sourceLineNo">134</span> // wait until at least one eviction has run<a name="line.134"></a>
-<span class="sourceLineNo">135</span> int n = 0;<a name="line.135"></a>
-<span class="sourceLineNo">136</span> while(cache.getStats().getEvictionCount() == 0) {<a name="line.136"></a>
-<span class="sourceLineNo">137</span> Thread.sleep(200);<a name="line.137"></a>
-<span class="sourceLineNo">138</span> assertTrue("Eviction never happened.", n++ < 20);<a name="line.138"></a>
-<span class="sourceLineNo">139</span> }<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span> // let cache stabilize<a name="line.141"></a>
-<span class="sourceLineNo">142</span> // On some systems, the cache will run multiple evictions before it attains<a name="line.142"></a>
-<span class="sourceLineNo">143</span> // steady-state. For instance, after populating the cache with 10 blocks,<a name="line.143"></a>
-<span class="sourceLineNo">144</span> // the first eviction evicts a single block and then a second eviction<a name="line.144"></a>
-<span class="sourceLineNo">145</span> // evicts another. I think this is due to the delta between minSize and<a name="line.145"></a>
-<span class="sourceLineNo">146</span> // acceptableSize, combined with variance between object overhead on<a name="line.146"></a>
-<span class="sourceLineNo">147</span> // different environments.<a name="line.147"></a>
-<span class="sourceLineNo">148</span> n = 0;<a name="line.148"></a>
-<span class="sourceLineNo">149</span> for (long prevCnt = 0 /* < number of blocks added */,<a name="line.149"></a>
-<span class="sourceLineNo">150</span> curCnt = cache.getBlockCount();<a name="line.150"></a>
-<span class="sourceLineNo">151</span> prevCnt != curCnt; prevCnt = curCnt, curCnt = cache.getBlockCount()) {<a name="line.151"></a>
-<span class="sourceLineNo">152</span> Thread.sleep(200);<a name="line.152"></a>
-<span class="sourceLineNo">153</span> assertTrue("Cache never stabilized.", n++ < 20);<a name="line.153"></a>
-<span class="sourceLineNo">154</span> }<a name="line.154"></a>
-<span class="sourceLineNo">155</span><a name="line.155"></a>
-<span class="sourceLineNo">156</span> long evictionCount = cache.getStats().getEvictionCount();<a name="line.156"></a>
-<span class="sourceLineNo">157</span> assertTrue(evictionCount >= 1);<a name="line.157"></a>
-<span class="sourceLineNo">158</span> System.out.println("Background Evictions run: " + evictionCount);<a name="line.158"></a>
-<span class="sourceLineNo">159</span> }<a name="line.159"></a>
-<span class="sourceLineNo">160</span><a name="line.160"></a>
-<span class="sourceLineNo">161</span> @Test<a name="line.161"></a>
-<span class="sourceLineNo">162</span> public void testCacheSimple() throws Exception {<a name="line.162"></a>
-<span class="sourceLineNo">163</span><a name="line.163"></a>
-<span class="sourceLineNo">164</span> long maxSize = 1000000;<a name="line.164"></a>
-<span class="sourceLineNo">165</span> long blockSize = calculateBlockSizeDefault(maxSize, 101);<a name="line.165"></a>
-<span class="sourceLineNo">166</span><a name="line.166"></a>
-<span class="sourceLineNo">167</span> LruBlockCache cache = new LruBlockCache(maxSize, blockSize);<a name="line.167"></a>
-<span class="sourceLineNo">168</span><a name="line.168"></a>
-<span class="sourceLineNo">169</span> CachedItem [] blocks = generateRandomBlocks(100, blockSize);<a name="line.169"></a>
-<span class="sourceLineNo">170</span><a name="line.170"></a>
-<span class="sourceLineNo">171</span> long expectedCacheSize = cache.heapSize();<a name="line.171"></a>
-<span class="sourceLineNo">172</span><a name="line.172"></a>
-<span class="sourceLineNo">173</span> // Confirm empty<a name="line.173"></a>
-<span class="sourceLineNo">174</span> for (CachedItem block : blocks) {<a name="line.174"></a>
-<span class="sourceLineNo">175</span> assertTrue(cache.getBlock(block.cacheKey, true, false, true) == null);<a name="line.175"></a>
-<span class="sourceLineNo">176</span> }<a name="line.176"></a>
-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span> // Add blocks<a name="line.178"></a>
-<span class="sourceLineNo">179</span> for (CachedItem block : blocks) {<a name="line.179"></a>
-<span class="sourceLineNo">180</span> cache.cacheBlock(block.cacheKey, block);<a name="line.180"></a>
-<span class="sourceLineNo">181</span> expectedCacheSize += block.cacheBlockHeapSize();<a name="line.181"></a>
-<span class="sourceLineNo">182</span> }<a name="line.182"></a>
-<span class="sourceLineNo">183</span><a name="line.183"></a>
-<span class="sourceLineNo">184</span> // Verify correctly calculated cache heap size<a name="line.184"></a>
-<span class="sourceLineNo">185</span> assertEquals(expectedCacheSize, cache.heapSize());<a name="line.185"></a>
-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span> // Check if all blocks are properly cached and retrieved<a name="line.187"></a>
-<span class="sourceLineNo">188</span> for (CachedItem block : blocks) {<a name="line.188"></a>
-<span class="sourceLineNo">189</span> HeapSize buf = cache.getBlock(block.cacheKey, true, false, true);<a name="line.189"></a>
-<span class="sourceLineNo">190</span> assertTrue(buf != null);<a name="line.190"></a>
-<span class="sourceLineNo">191</span> assertEquals(buf.heapSize(), block.heapSize());<a name="line.191"></a>
-<span class="sourceLineNo">192</span> }<a name="line.192"></a>
-<span class="sourceLineNo">193</span><a name="line.193"></a>
-<span class="sourceLineNo">194</span> // Re-add same blocks and ensure nothing has changed<a name="line.194"></a>
-<span class="sourceLineNo">195</span> long expectedBlockCount = cache.getBlockCount();<a name="line.195"></a>
-<span class="sourceLineNo">196</span> for (CachedItem block : blocks) {<a name="line.196"></a>
-<span class="sourceLineNo">197</span> cache.cacheBlock(block.cacheKey, block);<a name="line.197"></a>
-<span class="sourceLineNo">198</span> }<a name="line.198"></a>
-<span class="sourceLineNo">199</span> assertEquals(<a name="line.199"></a>
-<span class="sourceLineNo">200</span> "Cache should ignore cache requests for blocks already in cache",<a name="line.200"></a>
-<span class="sourceLineNo">201</span> expectedBlockCount, cache.getBlockCount());<a name="line.201"></a>
-<span class="sourceLineNo">202</span><a name="line.202"></a>
-<span class="sourceLineNo">203</span> // Verify correctly calculated cache heap size<a name="line.203"></a>
-<span class="sourceLineNo">204</span> assertEquals(expectedCacheSize, cache.heapSize());<a name="line.204"></a>
-<span class="sourceLineNo">205</span><a name="line.205"></a>
-<span class="sourceLineNo">206</span> // Check if all blocks are properly cached and retrieved<a name="line.206"></a>
-<span class="sourceLineNo">207</span> for (CachedItem block : blocks) {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> HeapSize buf = cache.getBlock(block.cacheKey, true, false, true);<a name="line.208"></a>
-<span class="sourceLineNo">209</span> assertTrue(buf != null);<a name="line.209"></a>
-<span class="sourceLineNo">210</span> assertEquals(buf.heapSize(), block.heapSize());<a name="line.210"></a>
-<span class="sourceLineNo">211</span> }<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span> // Expect no evictions<a name="line.213"></a>
-<span class="sourceLineNo">214</span> assertEquals(0, cache.getStats().getEvictionCount());<a name="line.214"></a>
-<span class="sourceLineNo">215</span> Thread t = new LruBlockCache.StatisticsThread(cache);<a name="line.215"></a>
-<span class="sourceLineNo">216</span> t.start();<a name="line.216"></a>
-<span class="sourceLineNo">217</span> t.join();<a name="line.217"></a>
-<span class="sourceLineNo">218</span> }<a name="line.218"></a>
-<span class="sourceLineNo">219</span><a name="line.219"></a>
-<span class="sourceLineNo">220</span> @Test<a name="line.220"></a>
-<span class="sourceLineNo">221</span> public void testCacheEvictionSimple() throws Exception {<a name="line.221"></a>
-<span class="sourceLineNo">222</span><a name="line.222"></a>
-<span class="sourceLineNo">223</span> long maxSize = 100000;<a name="line.223"></a>
-<span class="sourceLineNo">224</span> long blockSize = calculateBlockSizeDefault(maxSize, 10);<a name="line.224"></a>
-<span class="sourceLineNo">225</span><a name="line.225"></a>
-<span class="sourceLineNo">226</span> LruBlockCache cache = new LruBlockCache(maxSize,blockSize,false);<a name="line.226"></a>
-<span class="sourceLineNo">227</span><a name="line.227"></a>
-<span class="sourceLineNo">228</span> CachedItem [] blocks = generateFixedBlocks(10, blockSize, "block");<a name="line.228"></a>
-<span class="sourceLineNo">229</span><a name="line.229"></a>
-<span class="sourceLineNo">230</span> long expectedCacheSize = cache.heapSize();<a name="line.230"></a>
-<span class="sourceLineNo">231</span><a name="line.231"></a>
-<span class="sourceLineNo">232</span> // Add all the blocks<a name="line.232"></a>
-<span class="sourceLineNo">233</span> for (CachedItem block : blocks) {<a name="line.233"></a>
-<span class="sourceLineNo">234</span> cache.cacheBlock(block.cacheKey, block);<a name="line.234"></a>
-<span class="sourceLineNo">235</span> expectedCacheSize += block.cacheBlockHeapSize();<a name="line.235"></a>
-<span class="sourceLineNo">236</span> }<a name="line.236"></a>
-<span class="sourceLineNo">237</span><a name="line.237"></a>
-<span class="sourceLineNo">238</span> // A single eviction run should have occurred<a name="line.238"></a>
-<span class="sourceLineNo">239</span> assertEquals(1, cache.getStats().getEvictionCount());<a name="line.239"></a>
-<span class="sourceLineNo">240</span><a name="line.240"></a>
-<span class="sourceLineNo">241</span> // Our expected size overruns acceptable limit<a name="line.241"></a>
-<span class="sourceLineNo">242</span> assertTrue(expectedCacheSize ><a name="line.242"></a>
-<span class="sourceLineNo">243</span> (maxSize * LruBlockCache.DEFAULT_ACCEPTABLE_FACTOR));<a name="line.243"></a>
-<span class="sourceLineNo">244</span><a name="line.244"></a>
-<span class="sourceLineNo">245</span> // But the cache did not grow beyond max<a name="line.245"></a>
-<span class="sourceLineNo">246</span> assertTrue(cache.heapSize() < maxSize);<a name="line.246"></a>
-<span class="sourceLineNo">247</span><a name="line.247"></a>
-<span class="sourceLineNo">248</span> // And is still below the acceptable limit<a name="line.248"></a>
-<span class="sourceLineNo">249</span> assertTrue(cache.heapSize() <<a name="line.249"></a>
-<span class="sourceLineNo">250</span> (maxSize * LruBlockCache.DEFAULT_ACCEPTABLE_FACTOR));<a name="line.250"></a>
-<span class="sourceLineNo">251</span><a name="line.251"></a>
-<span class="sourceLineNo">252</span> // All blocks except block 0 should be in the cache<a name="line.252"></a>
-<span class="sourceLineNo">253</span> assertTrue(cache.getBlock(blocks[0].cacheKey, true, false, true) == null);<a name="line.253"></a>
-<span class="sourceLineNo">254</span> for(int i=1;i<blocks.length;i++) {<a name="line.254"></a>
-<span class="sourceLineNo">255</span> assertEquals(cache.getBlock(blocks[i].cacheKey, true, false, true),<a name="line.255"></a>
-<span class="sourceLineNo">256</span> blocks[i]);<a name="line.256"></a>
-<span class="sourceLineNo">257</span> }<a name="line.257"></a>
-<span class="sourceLineNo">258</span> }<a name="line.258"></a>
-<span class="sourceLineNo">259</span><a name="line.259"></a>
-<span class="sourceLineNo">260</span> @Test<a name="line.260"></a>
-<span class="sourceLineNo">261</span> public void testCacheEvictionTwoPriorities() throws Exception {<a name="line.261"></a>
-<span class="sourceLineNo">262</span><a name="line.262"></a>
-<span class="sourceLineNo">263</span> long maxSize = 100000;<a name="line.263"></a>
-<span class="sourceLineNo">264</span> long blockSize = calculateBlockSizeDefault(maxSize, 10);<a name="line.264"></a>
-<span class="sourceLineNo">265</span><a name="line.265"></a>
-<span class="sourceLineNo">266</span> LruBlockCache cache = new LruBlockCache(maxSize,blockSize,false);<a name="line.266"></a>
-<span class="sourceLineNo">267</span><a name="line.267"></a>
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-<span class="sourceLineNo">269</span> CachedItem [] multiBlocks = generateFixedBlocks(5, 10000, "multi");<a name="line.269"></a>
-<span class="sourceLineNo">270</span><a name="line.270"></a>
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-<span class="sourceLineNo">275</span> cache.cacheBlock(block.cacheKey, block);<a name="line.275"></a>
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-<span class="sourceLineNo">277</span> assertEquals(cache.getBlock(block.cacheKey, true, false, true), block);<a name="line.277"></a>
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-<span class="sourceLineNo">279</span><a name="line.279"></a>
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-<span class="sourceLineNo">286</span> // A single eviction run should have occurred<a name="line.286"></a>
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-<span class="sourceLineNo">288</span><a name="line.288"></a>
-<span class="sourceLineNo">289</span> // We expect two entries evicted<a name="line.289"></a>
-<span class="sourceLineNo">290</span> assertEquals(2, cache.getStats().getEvictedCount());<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span> // Our expected size overruns acceptable limit<a name="line.292"></a>
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-<span class="sourceLineNo">294</span> (maxSize * LruBlockCache.DEFAULT_ACCEPTABLE_FACTOR));<a name="line.294"></a>
-<span class="sourceLineNo">295</span><a name="line.295"></a>
-<span class="sourceLineNo">296</span> // But the cache did not grow beyond max<a name="line.296"></a>
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-<span class="sourceLineNo">299</span> // And is now below the acceptable limit<a name="line.299"></a>
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-<span class="sourceLineNo">302</span><a name="line.302"></a>
-<span class="sourceLineNo">303</span> // We expect fairness across the two priorities.<a name="line.303"></a>
-<span class="sourceLineNo">304</span> // This test makes multi go barely over its limit, in-memory<a name="line.304"></a>
-<span class="sourceLineNo">305</span> // empty, and the rest in single. Two single evictions and<a name="line.305"></a>
-<span class="sourceLineNo">306</span> // one multi eviction expected.<a name="line.306"></a>
-<span class="sourceLineNo">307</span> assertTrue(cache.getBlock(singleBlocks[0].cacheKey, true, false, true) == null);<a name="line.307"></a>
-<span class="sourceLineNo">308</span> assertTrue(cache.getBlock(multiBlocks[0].cacheKey, true, false, true) == null);<a name="line.308"></a>
-<span class="sourceLineNo">309</span><a name="line.309"></a>
-<span class="sourceLineNo">310</span> // And all others to be cached<a name="line.310"></a>
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-<span class="sourceLineNo">312</span> assertEquals(cache.getBlock(singleBlocks[i].cacheKey, true, false, true),<a name="line.312"></a>
-<span class="sourceLineNo">313</span> singleBlocks[i]);<a name="line.313"></a>
-<span class="sourceLineNo">314</span> assertEquals(cache.getBlock(multiBlocks[i].cacheKey, true, false, true),<a name="line.314"></a>
-<span class="sourceLineNo">315</span> multiBlocks[i]);<a name="line.315"></a>
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-<span class="sourceLineNo">322</span> long maxSize = 100000;<a name="line.322"></a>
-<span class="sourceLineNo">323</span> long blockSize = calculateBlockSize(maxSize, 10);<a name="line.323"></a>
-<span class="sourceLineNo">324</span><a name="line.324"></a>
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-<span class="sourceLineNo">326</span> (int)Math.ceil(1.2*maxSize/blockSize),<a name="line.326"></a>
-<span class="sourceLineNo">327</span> LruBlockCache.DEFAULT_LOAD_FACTOR,<a name="line.327"></a>
-<span class="sourceLineNo">328</span> LruBlockCache.DEFAULT_CONCURRENCY_LEVEL,<a name="line.328"></a>
-<span class="sourceLineNo">329</span> 0.98f, // min<a name="line.329"></a>
-<span class="sourceLineNo">330</span> 0.99f, // acceptable<a name="line.330"></a>
-<span class="sourceLineNo">331</span> 0.33f, // single<a name="line.331"></a>
-<span class="sourceLineNo">332</span> 0.33f, // multi<a name="line.332"></a>
-<span class="sourceLineNo">333</span> 0.34f, // memory<a name="line.333"></a>
-<span class="sourceLineNo">334</span> 1.2f, // limit<a name="line.334"></a>
-<span class="sourceLineNo">335</span> false,<a name="line.335"></a>
-<span class="sourceLineNo">336</span> 16 * 1024 * 1024);<a name="line.336"></a>
-<span class="sourceLineNo">337</span><a name="line.337"></a>
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-<span class="sourceLineNo">339</span> CachedItem [] multiBlocks = generateFixedBlocks(5, blockSize, "multi");<a name="line.339"></a>
-<span class="sourceLineNo">340</span> CachedItem [] memoryBlocks = generateFixedBlocks(5, blockSize, "memory");<a name="line.340"></a>
-<span class="sourceLineNo">341</span><a name="line.341"></a>
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-<span class="sourceLineNo">343</span><a name="line.343"></a>
-<span class="sourceLineNo">344</span> // Add 3 blocks from each priority<a name="line.344"></a>
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-<span class="sourceLineNo">346</span><a name="line.346"></a>
-<span class="sourceLineNo">347</span> // Just add single blocks<a name="line.347"></a>
-<span class="sourceLineNo">348</span> cache.cacheBlock(singleBlocks[i].cacheKey, singleBlocks[i]);<a name="line.348"></a>
-<span class="sourceLineNo">349</span> expectedCacheSize += singleBlocks[i].cacheBlockHeapSize();<a name="line.349"></a>
-<span class="sourceLineNo">350</span><a name="line.350"></a>
-<span class="sourceLineNo">351</span> // Add and get multi blocks<a name="line.351"></a>
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-<span class="sourceLineNo">353</span> expectedCacheSize += multiBlocks[i].cacheBlockHeapSize();<a name="line.353"></a>
-<span class="sourceLineNo">354</span> cache.getBlock(multiBlocks[i].cacheKey, true, false, true);<a name="line.354"></a>
-<span class="sourceLineNo">355</span><a name="line.355"></a>
-<span class="sourceLineNo">356</span> // Add memory blocks as such<a name="line.356"></a>
-<span class="sourceLineNo">357</span> cache.cacheBlock(memoryBlocks[i].cacheKey, memoryBlocks[i], true);<a name="line.357"></a>
-<span class="sourceLineNo">358</span> expectedCacheSize += memoryBlocks[i].cacheBlockHeapSize();<a name="line.358"></a>
-<span class="sourceLineNo">359</span><a name="line.359"></a>
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-<span class="sourceLineNo">362</span> // Do not expect any evictions yet<a name="line.362"></a>
-<span class="sourceLineNo">363</span> assertEquals(0, cache.getStats().getEvictionCount());<a name="line.363"></a>
-<span class="sourceLineNo">364</span><a name="line.364"></a>
-<span class="sourceLineNo">365</span> // Verify cache size<a name="line.365"></a>
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-<span class="sourceLineNo">367</span><a name="line.367"></a>
-<span class="sourceLineNo">368</span> // Insert a single block, oldest single should be evicted<a name="line.368"></a>
-<span class="sourceLineNo">369</span> cache.cacheBlock(singleBlocks[3].cacheKey, singleBlocks[3]);<a name="line.369"></a>
-<span class="sourceLineNo">370</span><a name="line.370"></a>
-<span class="sourceLineNo">371</span> // Single eviction, one thing evicted<a name="line.371"></a>
-<span class="sourceLineNo">372</span> assertEquals(1, cache.getStats().getEvictionCount());<a name="line.372"></a>
-<span class="sourceLineNo">373</span> assertEquals(1, cache.getStats().getEvictedCount());<a name="line.373"></a>
-<span class="sourceLineNo">374</span><a name="line.374"></a>
-<span class="sourceLineNo">375</span> // Verify oldest single block is the one evicted<a name="line.375"></a>
-<span class="sourceLineNo">376</span> assertEquals(null, cache.getBlock(singleBlocks[0].cacheKey, true, false, true));<a name="line.376"></a>
-<span class="sourceLineNo">377</span><a name="line.377"></a>
-<span class="sourceLineNo">378</span> // Change the oldest remaining single block to a multi<a name="line.378"></a>
-<span class="sourceLineNo">379</span> cache.getBlock(singleBlocks[1].cacheKey, true, false, true);<a name="line.379"></a>
-<span class="sourceLineNo">380</span><a name="line.380"></a>
-<span class="sourceLineNo">381</span> // Insert another single block<a name="line.381"></a>
-<span class="sourceLineNo">382</span> cache.cacheBlock(singleBlocks[4].cacheKey, singleBlocks[4]);<a name="line.382"></a>
-<span class="sourceLineNo">383</span><a name="line.383"></a>
-<span class="sourceLineNo">384</span> // Two evictions, two evicted.<a name="line.384"></a>
-<span class="sourceLineNo">385</span> assertEquals(2, cache.getStats().getEvictionCount());<a name="line.385"></a>
-<span class="sourceLineNo">386</span> assertEquals(2, cache.getStats().getEvictedCount());<a name="line.386"></a>
-<span class="sourceLineNo">387</span><a name="line.387"></a>
-<span class="sourceLineNo">388</span> // Oldest multi block should be evicted now<a name="line.388"></a>
-<span class="sourceLineNo">389</span> assertEquals(null, cache.getBlock(multiBlocks[0].cacheKey, true, false, true));<a name="line.389"></a>
-<span class="sourceLineNo">390</span><a name="line.390"></a>
-<span class="sourceLineNo">391</span> // Insert another memory block<a name="line.391"></a>
-<span class="sourceLineNo">392</span> cache.cacheBlock(memoryBlocks[3].cacheKey, memoryBlocks[3], true);<a name="line.392"></a>
-<span class="sourceLineNo">393</span><a name="line.393"></a>
-<span class="sourceLineNo">394</span> // Three evictions, three evicted.<a name="line.394"></a>
-<span class="sourceLineNo">395</span> assertEquals(3, cache.getStats().getEvictionCount());<a name="line.395"></a>
-<span class="sourceLineNo">396</span> assertEquals(3, cache.getStats().getEvictedCount());<a name="line.396"></a>
-<span class="sourceLineNo">397</span><a name="line.397"></a>
-<span class="sourceLineNo">398</span> // Oldest memory block should be evicted now<a name="line.398"></a>
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-<span class="sourceLineNo">400</span><a name="line.400"></a>
-<span class="sourceLineNo">401</span> // Add a block that is twice as big (should force two evictions)<a name="line.401"></a>
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-<span class="sourceLineNo">403</span> cache.cacheBlock(bigBlocks[0].cacheKey, bigBlocks[0]);<a name="line.403"></a>
-<span class="sourceLineNo">404</span><a name="line.404"></a>
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-<span class="sourceLineNo">406</span> assertEquals(4, cache.getStats().getEvictionCount());<a name="line.406"></a>
-<span class="sourceLineNo">407</span> assertEquals(6, cache.getStats().getEvictedCount());<a name="line.407"></a>
-<span class="sourceLineNo">408</span><a name="line.408"></a>
-<span class="sourceLineNo">409</span> // Expect three remaining singles to be evicted<a name="line.409"></a>
-<span class="sourceLineNo">410</span> assertEquals(null, cache.getBlock(singleBlocks[2].cacheKey, true, false, true));<a name="line.410"></a>
-<span class="sourceLineNo">411</span> assertEquals(null, cache.getBlock(singleBlocks[3].cacheKey, true, false, true));<a name="line.411"></a>
-<span class="sourceLineNo">412</span> assertEquals(null, cache.getBlock(singleBlocks[4].cacheKey, true, false, true));<a name="line.412"></a>
-<span class="sourceLineNo">413</span><a name="line.413"></a>
-<span class="sourceLineNo">414</span> // Make the big block a multi block<a name="line.414"></a>
-<span class="sourceLineNo">415</span> cache.getBlock(bigBlocks[0].cacheKey, true, false, true);<a name="line.415"></a>
-<span class="sourceLineNo">416</span><a name="line.416"></a>
-<span class="sourceLineNo">417</span> // Cache another single big block<a name="line.417"></a>
-<span class="sourceLineNo">418</span> cache.cacheBlock(bigBlocks[1].cacheKey, bigBlocks[1]);<a name="line.418"></a>
-<span class="sourceLineNo">419</span><a name="line.419"></a>
-<span class="sourceLineNo">420</span> // Five evictions, nine evicted (3 new)<a name="line.420"></a>
-<span class="sourceLineNo">421</span> assertEquals(5, cache.getStats().getEvictionCount());<a name="line.421"></a>
-<span class="sourceLineNo">422</span> assertEquals(9, cache.getStats().getEvictedCount());<a name="line.422"></a>
-<span class="sourceLineNo">423</span><a name="line.423"></a>
-<span class="sourceLineNo">424</span> // Expect three remaining multis to be evicted<a name="line.424"></a>
-<span class="sourceLineNo">425</span> assertEquals(null, cache.getBlock(singleBlocks[1].cacheKey, true, false, true));<a name="line.425"></a>
-<span class="sourceLineNo">426</span> assertEquals(null, cache.getBlock(multiBlocks[1].cacheKey, true, false, true));<a name="line.426"></a>
-<span class="sourceLineNo">427</span> assertEquals(null, cache.getBlock(multiBlocks[2].cacheKey, true, false, true));<a name="line.427"></a>
-<span class="sourceLineNo">428</span><a name="line.428"></a>
-<span class="sourceLineNo">429</span> // Cache a big memory block<a name="line.429"></a>
-<span class="sourceLineNo">430</span> cache.cacheBlock(bigBlocks[2].cacheKey, bigBlocks[2], true);<a name="line.430"></a>
-<span class="sourceLineNo">431</span><a name="line.431"></a>
-<span class="sourceLineNo">432</span> // Six evictions, twelve evicted (3 new)<a name="line.432"></a>
-<span class="sourceLineNo">433</span> assertEquals(6, cache.getStats().getEvictionCount());<a name="line.433"></a>
-<span class="sourceLineNo">434</span> assertEquals(12, cache.getStats().getEvictedCount());<a name="line.434"></a>
-<span class="sourceLineNo">435</span><a name="line.435"></a>
-<span class="sourceLineNo">436</span> // Expect three remaining in-memory to be evicted<a name="line.436"></a>
-<span class="sourceLineNo">437</span> assertEquals(null, cache.getBlock(memoryBlocks[1].cacheKey, true, false, true));<a name="line.437"></a>
-<span class="sourceLineNo">438</span> assertEquals(null, cache.getBlock(memoryBlocks[2].cacheKey, true, false, true));<a name="line.438"></a>
-<span class="sourceLineNo">439</span> assertEquals(null, cache.getBlock(memoryBlocks[3].cacheKey, true, false, true));<a name="line.439"></a>
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-<span class="sourceLineNo">441</span><a name="line.441"></a>
-<span class="sourceLineNo">442</span> @Test<a name="line.442"></a>
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-<span class="sourceLineNo">445</span> long blockSize = calculateBlockSize(maxSize, 10);<a name="line.445"></a>
-<span class="sourceLineNo">446</span><a name="line.446"></a>
-<span class="sourceLineNo">447</span> LruBlockCache cache = new LruBlockCache(maxSize, blockSize, false,<a name="line.447"></a>
-<span class="sourceLineNo">448</span> (int)Math.ceil(1.2*maxSize/blockSize),<a name="line.448"></a>
-<span class="sourceLineNo">449</span> LruBlockCache.DEFAULT_LOAD_FACTOR,<a name="line.449"></a>
-<span class="sourceLineNo">450</span> LruBlockCache.DEFAULT_CONCURRENCY_LEVEL,<a name="line.450"></a>
-<span class="sourceLineNo">451</span> 0.98f, // min<a name="line.451"></a>
-<span class="sourceLineNo">452</span> 0.99f, // acceptable<a name="line.452"></a>
-<span class="sourceLineNo">453</span> 0.2f, // single<a name="line.453"></a>
-<span class="sourceLineNo">454</span> 0.3f, // multi<a name="line.454"></a>
-<span class="sourceLineNo">455</span> 0.5f, // memory<a name="line.455"></a>
-<span class="sourceLineNo">456</span> 1.2f, // limit<a name="line.456"></a>
-<span class="sourceLineNo">457</span> true,<a name="line.457"></a>
-<span class="sourceLineNo">458</span> 16 * 1024 * 1024);<a name="line.458"></a>
-<span class="sourceLineNo">459</span><a name="line.459"></a>
-<span class="sourceLineNo">460</span> CachedItem [] singleBlocks = generateFixedBlocks(10, blockSize, "single");<a name="line.460"></a>
-<span class="sourceLineNo">461</span> CachedItem [] multiBlocks = generateFixedBlocks(10, blockSize, "multi");<a name="line.461"></a>
-<span class="sourceLineNo">462</span> CachedItem [] memoryBlocks = generateFixedBlocks(10, blockSize, "memory");<a name="line.462"></a>
-<span class="sourceLineNo">463</span><a name="line.463"></a>
-<span class="sourceLineNo">464</span> long expectedCacheSize = cache.heapSize();<a name="line.464"></a>
-<span class="sourceLineNo">465</span><a name="line.465"></a>
-<span class="sourceLineNo">466</span> // 0. Add 5 single blocks and 4 multi blocks to make cache full, si:mu:me = 5:4:0<a name="line.466"></a>
-<span class="sourceLineNo">467</span> for(int i = 0; i < 4; i++) {<a name="line.467"></a>
-<span class="sourceLineNo">468</span> // Just add single blocks<a name="line.468"></a>
-<span class="sourceLineNo">469</span> cache.cacheBlock(singleBlocks[i].cacheKey, singleBlocks[i]);<a name="line.469"></a>
-<span class="sourceLineNo">470</span> expectedCacheSize += singleBlocks[i].cacheBlockHeapSize();<a name="line.470"></a>
-<span class="sourceLineNo">471</span> // Add and get multi blocks<a name="line.471"></a>
-<span class="sourceLineNo">472</span> cache.cacheBlock(multiBlocks[i].cacheKey, multiBlocks[i]);<a name="line.472"></a>
-<span class="sourceLineNo">473</span> expectedCacheSize += multiBlocks[i].cacheBlockHeapSize();<a name="line.473"></a>
-<span class="sourceLineNo">474</span> cache.getBlock(multiBlocks[i].cacheKey, true, false, true);<a name="line.474"></a>
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-<span class="sourceLineNo">476</span> // 5th single block<a name="line.476"></a>
-<span class="sourceLineNo">477</span> cache.cacheBlock(singleBlocks[4].cacheKey, singleBlocks[4]);<a name="line.477"></a>
-<span class="sourceLineNo">478</span> expectedCacheSize += singleBlocks[4].cacheBlockHeapSize();<a name="line.478"></a>
-<span class="sourceLineNo">479</span> // Do not expect any evictions yet<a name="line.479"></a>
-<span class="sourceLineNo">480</span> assertEquals(0, cache.getStats().getEvictionCount());<a name="line.480"></a>
-<span class="sourceLineNo">481</span> // Verify cache size<a name="line.481"></a>
-<span class="sourceLineNo">482</span> assertEquals(expectedCacheSize, cache.heapSize());<a name="line.482"></a>
-<span class="sourceLineNo">483</span><a name="line.483"></a>
-<span class="sourceLineNo">484</span> // 1. Insert a memory block, oldest single should be evicted, si:mu:me = 4:4:1<a name="line.484"></a>
-<span class="sourceLineNo">485</span> cache.cacheBlock(memoryBlocks[0].cacheKey, memoryBlocks[0], true);<a name="line.485"></a>
-<span class="sourceLineNo">486</span> // Single eviction, one block evicted<a name="line.486"></a>
-<span class="sourceLineNo">487</span> assertEquals(1, cache.getStats().getEvictionCount());<a name="line.487"></a>
-<span class="sourceLineNo">488</span> assertEquals(1, cache.getStats().getEvictedCount());<a name="line.488"></a>
-<span class="sourceLineNo">489</span> // Verify oldest single block (index = 0) is the one evicted<a name="line.489"></a>
-<span class="sourceLineNo">490</span> assertEquals(null, cache.getBlock(singleBlocks[0].cacheKey, true, false, true));<a name="line.490"></a>
-<span class="sourceLineNo">491</span><a name="line.491"></a>
-<span class="sourceLineNo">492</span> // 2. Insert another memory block, another single evicted, si:mu:me = 3:4:2<a name="line.492"></a>
-<span class="sourceLineNo">493</span> cache.cacheBlock(memoryBlocks[1].cacheKey, memoryBlocks[1], true);<a name="line.493"></a>
-<span class="sourceLineNo">494</span> // Two evictions, two evicted.<a name="line.494"></a>
-<span class="sourceLineNo">495</span> assertEquals(2, cache.getStats().getEvictionCount());<a name="line.495"></a>
-<span class="sourceLineNo">496</span> assertEquals(2, cache.getStats().getEvictedCount());<a name="line.496"></a>
-<span class="sourceLineNo">497</span> // Current oldest single block (index = 1) should be evicted now<a name="line.497"></a>
-<span class="sourceLineNo">498</span> assertEquals(null, cache.getBlock(singleBlocks[1].cacheKey, true, false, true));<a name="line.498"></a>
-<span class="sourceLineNo">499</span><a name="line.499"></a>
-<span class="sourceLineNo">500</span> // 3. Insert 4 memory blocks, 2 single and 2 multi evicted, si:mu:me = 1:2:6<a name="line.500"></a>
-<span class="sourceLineNo">501</span> cache.cacheBlock(memoryBlocks[2].cacheKey, memoryBlocks[2], true);<a name="line.501"></a>
-<span class="sourceLineNo">502</span> cache.cacheBlock(memoryBlocks[3].cacheKey, memoryBlocks[3], true);<a name="line.502"></a>
-<span class="sourceLineNo">503</span> cache.cacheBlock(memoryBlocks[4].cacheKey, memoryBlocks[4], true);<a name="line.503"></a>
-<span class="sourceLineNo">504</span> cache.cacheBlock(memoryBlocks[5].cacheKey, memoryBlocks[5], true);<a name="line.504"></a>
-<span class="sourceLineNo">505</span> // Three evictions, three evicted.<a name="line.505"></a>
-<span class="sourceLineNo">506</span> assertEquals(6, cache.getStats().getEvictionCount());<a name="line.506"></a>
-<span class="sourceLineNo">507</span> assertEquals(6, cache.getStats().getEvictedCount());<a name="line.507"></a>
-<span class="sourceLineNo">508</span> // two oldest single blocks and two oldest multi blocks evicted<a name="line.508"></a>
-<span class="sourceLineNo">509</span> assertEquals(null, cache.getBlock(singleBlocks[2].cacheKey, true, false, true));<a name="line.509"></a>
-<span class="sourceLineNo">510</span> assertEquals(null, cache.getBlock(singleBlocks[3].cacheKey, true, false, true));<a name="line.510"></a>
-<span class="sourceLineNo">511</span> assertEquals(null, cache.getBlock(multiBlocks[0].cacheKey, true, false, true));<a name="line.511"></a>
-<span class="sourceLineNo">512</span> assertEquals(null, cache.getBlock(multiBlocks[1].cacheKey, true, false, true));<a name="line.512"></a>
-<span class="sourceLineNo">513</span><a name="line.513"></a>
-<span class="sourceLineNo">514</span> // 4. Insert 3 memory blocks, the remaining 1 single and 2 multi evicted<a name="line.514"></a>
-<span class="sourceLineNo">515</span> // si:mu:me = 0:0:9<a name="line.515"></a>
-<span class="sourceLineNo">516</span> cache.cacheBlock(memoryBlocks[6].cacheKey, memoryBlocks[6], true);<a name="line.516"></a>
-<span class="sourceLineNo">517</span> cache.cacheBlock(memoryBlocks[7].cacheKey, memoryBlocks[7], true);<a name="line.517"></a>
-<span class="sourceLineNo">518</span> cache.cacheBlock(memoryBlocks[8].cacheKey, memoryBlocks[8], true);<a name="line.518"></a>
-<span class="sourceLineNo">519</span> // Three evictions, three evicted.<a name="line.519"></a>
-<span class="sourceLineNo">520</span> assertEquals(9, cache.getStats().getEvictionCount());<a name="line.520"></a>
-<span class="sourceLineNo">521</span> assertEquals(9, cache.getStats().getEvictedCount());<a name="line.521"></a>
-<span class="sourceLineNo">522</span> // one oldest single block and two oldest multi blocks evicted<a name="line.522"></a>
-<span class="sourceLineNo">523</span> assertEquals(null, cache.getBlock(singleBlocks[4].cacheKey, true, false, true));<a name="line.523"></a>
-<span class="sourceLineNo">524</span> assertEquals(null, cache.getBlock(multiBlocks[2].cacheKey, true, false, true));<a name="line.524"></a>
-<span class="sourceLineNo">525</span> assertEquals(null, cache.getBlock(multiBlocks[3].cacheKey, true, false, true));<a name="line.525"></a>
-<span class="sourceLineNo">526</span><a name="line.526"></a>
-<span class="sourceLineNo">527</span> // 5. Insert one memory block, the oldest memory evicted<a name="line.527"></a>
-<span class="sourceLineNo">528</span> // si:mu:me = 0:0:9<a name="line.528"></a>
-<span class="sourceLineNo">529</span> cache.cacheBlock(memoryBlocks[9].cacheKey, memoryBlocks[9], true);<a name="line.529"></a>
-<span class="sourceLineNo">530</span> // one eviction, one evicted.<a name="line.530"></a>
-<span class="sourceLineNo">531</span> assertEquals(10, cache.getStats().getEvictionCount());<a name="line.531"></a>
-<span class="sourceLineNo">532</span> assertEquals(10, cache.getStats().getEvictedCount());<a name="line.532"></a>
-<span class="sourceLineNo">533</span> // oldest memory block evicted<a name="line.533"></a>
-<span class="sourceLineNo">534</span> assertEquals(null, cache.getBlock(memoryBlocks[0].cacheKey, true, false, true));<a name="line.534"></a>
-<span class="sourceLineNo">535</span><a name="line.535"></a>
-<span class="sourceLineNo">536</span> // 6. Insert one new single block, itself evicted immediately since<a name="line.536"></a>
-<span class="sourceLineNo">537</span> // all blocks in cache are memory-type which have higher priority<a name="line.537"></a>
-<span class="sourceLineNo">538</span> // si:mu:me = 0:0:9 (no change)<a name="line.538"></a>
-<span class="sourceLineNo">539</span> cache.cacheBlock(singleBlocks[9].cacheKey, singleBlocks[9]);<a name="line.539"></a>
-<span class="sourceLineNo">540</span> // one eviction, one evicted.<a name="line.540"></a>
-<span class="sourceLineNo">541</span> assertEquals(11, cache.getStats().getEvictionCount());<a name="line.541"></a>
-<span class="sourceLineNo">542</span> assertEquals(11, cache.getStats().getEvictedCount());<a name="line.542"></a>
-<span class="sourceLineNo">543</span> // the single block just cached now evicted (can't evict memory)<a name="line.543"></a>
-<span class="sourceLineNo">544</span> assertEquals(null, cache.getBlock(singleBlocks[9].cacheKey, true, false, true));<a name="line.544"></a>
-<span class="sourceLineNo">545</span> }<a name="line.545"></a>
-<span class="sourceLineNo">546</span><a name="line.546"></a>
-<span class="sourceLineNo">547</span> // test scan resistance<a name="line.547"></a>
-<span class="sourceLineNo">548</span> @Test<a name="line.548"></a>
-<span class="sourceLineNo">549</span> public void testScanResistance() throws Exception {<a name="line.549"></a>
-<span class="sourceLineNo">550</span><a name="line.550"></a>
-<span class="sourceLineNo">551</span> long maxSize = 100000;<a name="line.551"></a>
-<span class="sourceLineNo">552</span> long blockSize = calculateBlockSize(maxSize, 10);<a name="line.552"></a>
-<span class="sourceLineNo">553</span><a name="line.553"></a>
-<span class="sourceLineNo">554</span> LruBlockCache cache = new LruBlockCache(maxSize, blockSize, false,<a name="line.554"></a>
-<span class="sourceLineNo">555</span> (int)Math.ceil(1.2*maxSize/blockSize),<a name="line.555"></a>
-<span class="sourceLineNo">556</span> LruBlockCache.DEFAULT_LOAD_FACTOR,<a name="line.556"></a>
-<span class="sourceLineNo">557</span> LruBlockCache.DEFAULT_CONCURRENCY_LEVEL,<a name="line.557"></a>
-<span class="sourceLineNo">558</span> 0.66f, // min<a name="line.558"></a>
-<span class="sourceLineNo">559</span> 0.99f, // acceptable<a name="line.559"></a>
-<span class="sourceLineNo">560</span> 0.33f, // single<a name="line.560"></a>
-<span class="sourceLineNo">561</span> 0.33f, // multi<a name="line.561"></a>
-<span class="sourceLineNo">562</span> 0.34f, // memory<a name="line.562"></a>
-<span class="sourceLineNo">563</span> 1.2f, // limit<a name="line.563"></a>
-<span class="sourceLineNo">564</span> false,<a name="line.564"></a>
-<span class="sourceLineNo">565</span> 16 * 1024 * 1024);<a name="line.565"></a>
-<span class="sourceLineNo">566</span><a name="line.566"></a>
-<span class="sourceLineNo">567</span> CachedItem [] singleBlocks = generateFixedBlocks(20, blockSize, "single");<a name="line.567"></a>
-<span class="sourceLineNo">568</span> CachedItem [] multiBlocks = generateFixedBlocks(5, blockSize, "multi");<a name="line.568"></a>
-<span class="sourceLineNo">569</span><a name="line.569"></a>
-<span class="sourceLineNo">570</span> // Add 5 multi blocks<a name="line.570"></a>
-<span class="sourceLineNo">571</span> for (CachedItem block : multiBlocks) {<a name="line.571"></a>
-<span class="sourceLineNo">572</span> cache.cacheBlock(block.cacheKey, block);<a name="line.572"></a>
-<span class="sourceLineNo">573</span> cache.getBlock(block.cacheKey, true, false, true);<a name="line.573"></a>
-<span class="sourceLineNo">574</span> }<a name="line.574"></a>
-<span class="sourceLineNo">575</span><a name="line.575"></a>
-<span class="sourceLineNo">576</span> // Add 5 single blocks<a name="line.576"></a>
-<span class="sourceLineNo">577</span> for(int i=0;i<5;i++) {<a name="line.577"></a>
-<span class="sourceLineNo">578</span> cache.cacheBlock(singleBlocks[i].cacheKey, singleBlocks[i]);<a name="line.578"></a>
-<span class="sourceLineNo">579</span> }<a name="line.579"></a>
-<span class="sourceLineNo">580</span><a name="line.580"></a>
-<span class="sourceLineNo">581</span> // An eviction ran<a name="line.581"></a>
-<span class="sourceLineNo">582</span> assertEquals(1, cache.getStats().getEvictionCount());<a name="line.582"></a>
-<span class="sourceLineNo">583</span><a name="line.583"></a>
-<span class="sourceLineNo">584</span> // To drop down to 2/3 capacity, we'll need to evict 4 blocks<a name="line.584"></a>
-<span class="sourceLineNo">585</span> assertEquals(4, cache.getStats().getEvictedCount());<a name="line.585"></a>
-<span class="sourceLineNo">586</span><a name="line.586"></a>
-<span class="sourceLineNo">587</span> // Should have been taken off equally from single and multi<a name="line.587"></a>
-<span class="sourceLineNo">588</span> assertEquals(null, cache.getBlock(singleBlocks[0].cacheKey, true, false, true));<a name="line.588"></a>
-<span class="sourceLineNo">589</span> assertEquals(null, cache.getBlock(singleBlocks[1].cacheKey, true, false, true));<a name="line.589"></a>
-<span class="sourceLineNo">590</span> assertEquals(null, cache.getBlock(multiBlocks[0].cacheKey, true, false, true));<a name="line.590"></a>
-<span class="sourceLineNo">591</span> assertEquals(null, cache.getBlock(multiBlocks[1].cacheKey, true, false, true));<a name="line.591"></a>
-<span class="sourceLineNo">592</span><a name="line.592"></a>
-<span class="sourceLineNo">593</span> // Let's keep "scanning" by adding single blocks. From here on we only<a name="line.593"></a>
-<span class="sourceLineNo">594</span> // expect evictions from the single bucket.<a name="line.594"></a>
-<span class="sourceLineNo">595</span><a name="line.595"></a>
-<span class="sourceLineNo">596</span> // Every time we reach 10 total blocks (every 4 inserts) we get 4 single<a name="line.596"></a>
-<span class="sourceLineNo">597</span> // blocks evicted. Inserting 13 blocks should yield 3 more evictions and<a name="line.597"></a>
-<span class="sourceLineNo">598</span> // 12 more evicted.<a name="line.598"></a>
-<span class="sourceLineNo">599</span><a name="line.599"></a>
-<span class="sourceLineNo">600</span> for(int i=5;i<18;i++) {<a name="line.600"></a>
-<span class="sourceLineNo">601</span> cache.cacheBlock(singleBlocks[i].cacheKey, singleBlocks[i]);<a name="line.601"></a>
-<span class="sourceLineNo">602</span> }<a name="line.602"></a>
-<span class="sourceLineNo">603</span><a name="line.603"></a>
-<span class="sourceLineNo">604</span> // 4 total evictions, 16 total evicted<a name="line.604"></a>
-<span class="sourceLineNo">605</span> assertEquals(4, cache.getStats().getEvictionCount());<a name="line.605"></a>
-<span class="sourceLineNo">606</span> assertEquals(16, cache.getStats().getEvictedCount());<a name="line.606"></a>
-<span class="sourceLineNo">607</span><a name="line.607"></a>
-<span class="sourceLineNo">608</span> // Should now have 7 total blocks<a name="line.608"></a>
-<span class="sourceLineNo">609</span> assertEquals(7, cache.getBlockCount());<a name="line.609"></a>
-<span class="sourceLineNo">610</span><a name="line.610"></a>
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-<span class="sourceLineNo">612</span><a name="line.612"></a>
-<span class="sourceLineNo">613</span> @Test<a name="line.613"></a>
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-<span class="sourceLineNo">615</span> long maxSize = 100000;<a name="line.615"></a>
-<span class="sourceLineNo">616</span> long blockSize = calculateBlockSize(maxSize, 10);<a name="line.616"></a>
-<span class="sourceLineNo">617</span><a name="line.617"></a>
-<span class="sourceLineNo">618</span> LruBlockCache cache = new LruBlockCache(maxSize, blockSize, false,<a name="line.618"></a>
-<span class="sourceLineNo">619</span> (int)Math.ceil(1.2*maxSize/blockSize),<a name="line.619"></a>
-<span class="sourceLineNo">620</span> LruBlockCache.DEFAULT_LOAD_FACTOR,<a name="line.620"></a>
-<span class="sourceLineNo">621</span> LruBlockCache.DEFAULT_CONCURRENCY_LEVEL,<a name="line.621"></a>
-<span class="sourceLineNo">622</span> 0.66f, // min<a name="line.622"></a>
-<span class="sourceLineNo">623</span> 0.99f, // acceptable<a name="line.623"></a>
-<span class="sourceLineNo">624</span> 0.33f, // single<a name="line.624"></a>
-<span class="sourceLineNo">625</span> 0.33f, // multi<a name="line.625"></a>
-<span class="sourceLineNo">626</span> 0.34f, // memory<a name="line.626"></a>
-<span class="sourceLineNo">627</span> 1.2f, // limit<a name="line.627"></a>
-<span class="sourceLineNo">628</span> false,<a name="line.628"></a>
-<span class="sourceLineNo">629</span> 1024);<a name="line.629"></a>
-<span class="sourceLineNo">630</span> CachedItem [] tooLong = generateFixedBlocks(10, 1024+5, "long");<a name="line.630"></a>
-<span class="sourceLineNo">631</span> CachedItem [] small = generateFixedBlocks(15, 600, "small");<a name="line.631"></a>
-<span class="sourceLineNo">632</span><a name="line.632"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HConstants;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.Waiter;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.io.HeapSize;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.hfile.LruBlockCache.EvictionThread;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.testclassification.IOTests;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.ClassSize;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.junit.ClassRule;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.junit.Test;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.junit.experimental.categories.Category;<a name="line.44"></a>
+<span class="sourceLineNo">045</span><a name="line.45"></a>
+<span class="sourceLineNo">046</span>/**<a name="line.46"></a>
+<span class="sourceLineNo">047</span> * Tests the concurrent LruBlockCache.<p><a name="line.47"></a>
+<span class="sourceLineNo">048</span> *<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * Tests will ensure it grows and shrinks in size properly,<a name="line.49"></a>
+<span class="sourceLineNo">050</span> * evictions run when they're supposed to and do what they should,<a name="line.50"></a>
+<span class="sourceLineNo">051</span> * and that cached blocks are accessible when expected to be.<a name="line.51"></a>
+<span class="sourceLineNo">052</span> */<a name="line.52"></a>
+<span class="sourceLineNo">053</span>@Category({IOTests.class, SmallTests.class})<a name="line.53"></a>
+<span class="sourceLineNo">054</span>public class TestLruBlockCache {<a name="line.54"></a>
+<span class="sourceLineNo">055</span><a name="line.55"></a>
+<span class="sourceLineNo">056</span> @ClassRule<a name="line.56"></a>
+<span class="sourceLineNo">057</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.57"></a>
+<span class="sourceLineNo">058</span> HBaseClassTestRule.forClass(TestLruBlockCache.class);<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span> @Test<a name="line.60"></a>
+<span class="sourceLineNo">061</span> public void testCacheEvictionThreadSafe() throws Exception {<a name="line.61"></a>
+<span class="sourceLineNo">062</span> long maxSize = 100000;<a name="line.62"></a>
+<span class="sourceLineNo">063</span> int numBlocks = 9;<a name="line.63"></a>
+<span class="sourceLineNo">064</span> int testRuns = 10;<a name="line.64"></a>
+<span class="sourceLineNo">065</span> final long blockSize = calculateBlockSizeDefault(maxSize, numBlocks);<a name="line.65"></a>
+<span class="sourceLineNo">066</span> assertTrue("calculateBlockSize appears broken.", blockSize * numBlocks <= maxSize);<a name="line.66"></a>
+<span class="sourceLineNo">067</span><a name="line.67"></a>
+<span class="sourceLineNo">068</span> final Configuration conf = HBaseConfiguration.create();<a name="line.68"></a>
+<span class="sourceLineNo">069</span> final LruBlockCache cache = new LruBlockCache(maxSize, blockSize);<a name="line.69"></a>
+<span class="sourceLineNo">070</span> EvictionThread evictionThread = cache.getEvictionThread();<a name="line.70"></a>
+<span class="sourceLineNo">071</span> assertTrue(evictionThread != null);<a name="line.71"></a>
+<span class="sourceLineNo">072</span> while (!evictionThread.isEnteringRun()) {<a name="line.72"></a>
+<span class="sourceLineNo">073</span> Thread.sleep(1);<a name="line.73"></a>
+<span class="sourceLineNo">074</span> }<a name="line.74"></a>
+<span class="sourceLineNo">075</span> final String hfileName = "hfile";<a name="line.75"></a>
+<span class="sourceLineNo">076</span> int threads = 10;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> final int blocksPerThread = 5 * numBlocks;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> for (int run = 0; run != testRuns; ++run) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span> final AtomicInteger blockCount = new AtomicInteger(0);<a name="line.79"></a>
+<span class="sourceLineNo">080</span> ExecutorService service = Executors.newFixedThreadPool(threads);<a name="line.80"></a>
+<span class="sourceLineNo">081</span> for (int i = 0; i != threads; ++i) {<a name="line.81"></a>
+<span class="sourceLineNo">082</span> service.execute(new Runnable() {<a name="line.82"></a>
+<span class="sourceLineNo">083</span> @Override<a name="line.83"></a>
+<span class="sourceLineNo">084</span> public void run() {<a name="line.84"></a>
+<span class="sourceLineNo">085</span> for (int blockIndex = 0; blockIndex < blocksPerThread || (!cache.isEvictionInProgress()); ++blockIndex) {<a name="line.85"></a>
+<span class="sourceLineNo">086</span> CachedItem block = new CachedItem(hfileName, (int) blockSize, blockCount.getAndIncrement());<a name="line.86"></a>
+<span class="sourceLineNo">087</span> boolean inMemory = Math.random() > 0.5;<a name="line.87"></a>
+<span class="sourceLineNo">088</span> cache.cacheBlock(block.cacheKey, block, inMemory);<a name="line.88"></a>
+<span class="sourceLineNo">089</span> }<a name="line.89"></a>
+<span class="sourceLineNo">090</span> cache.evictBlocksByHfileName(hfileName);<a name="line.90"></a>
+<span class="sourceLineNo">091</span> }<a name="line.91"></a>
+<span class="sourceLineNo">092</span> });<a name="line.92"></a>
+<span class="sourceLineNo">093</span> }<a name="line.93"></a>
+<span class="sourceLineNo">094</span> service.shutdown();<a name="line.94"></a>
+<span class="sourceLineNo">095</span> // The test may fail here if the evict thread frees the blocks too fast<a name="line.95"></a>
+<span class="sourceLineNo">096</span> service.awaitTermination(10, TimeUnit.MINUTES);<a name="line.96"></a>
+<span class="sourceLineNo">097</span> Waiter.waitFor(conf, 10000, 100, new ExplainingPredicate<Exception>() {<a name="line.97"></a>
+<span class="sourceLineNo">098</span> @Override<a name="line.98"></a>
+<span class="sourceLineNo">099</span> public boolean evaluate() throws Exception {<a name="line.99"></a>
+<span class="sourceLineNo">100</span> return cache.getBlockCount() == 0;<a name="line.100"></a>
+<span class="sourceLineNo">101</span> }<a name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
+<span class="sourceLineNo">103</span> @Override<a name="line.103"></a>
+<span class="sourceLineNo">104</span> public String explainFailure() throws Exception {<a name="line.104"></a>
+<span class="sourceLineNo">105</span> return "Cache block count failed to return to 0";<a name="line.105"></a>
+<span class="sourceLineNo">106</span> }<a name="line.106"></a>
+<span class="sourceLineNo">107</span> });<a name="line.107"></a>
+<span class="sourceLineNo">108</span> assertEquals(0, cache.getBlockCount());<a name="line.108"></a>
+<span class="sourceLineNo">109</span> assertEquals(cache.getOverhead(), cache.getCurrentSize());<a name="line.109"></a>
+<span class="sourceLineNo">110</span> }<a name="line.110"></a>
+<span class="sourceLineNo">111</span> }<a name="line.111"></a>
+<span class="sourceLineNo">112</span> @Test<a name="line.112"></a>
+<span class="sourceLineNo">113</span> public void testBackgroundEvictionThread() throws Exception {<a name="line.113"></a>
+<span class="sourceLineNo">114</span> long maxSize = 100000;<a name="line.114"></a>
+<span class="sourceLineNo">115</span> int numBlocks = 9;<a name="line.115"></a>
+<span class="sourceLineNo">116</span> long blockSize = calculateBlockSizeDefault(maxSize, numBlocks);<a name="line.116"></a>
+<span class="sourceLineNo">117</span> assertTrue("calculateBlockSize appears broken.", blockSize * numBlocks <= maxSize);<a name="line.117"></a>
+<span class="sourceLineNo">118</span><a name="line.118"></a>
+<span class="sourceLineNo">119</span> LruBlockCache cache = new LruBlockCache(maxSize,blockSize);<a name="line.119"></a>
+<span class="sourceLineNo">120</span> EvictionThread evictionThread = cache.getEvictionThread();<a name="line.120"></a>
+<span class="sourceLineNo">121</span> assertTrue(evictionThread != null);<a name="line.121"></a>
+<span class="sourceLineNo">122</span><a name="line.122"></a>
+<span class="sourceLineNo">123</span> CachedItem[] blocks = generateFixedBlocks(numBlocks + 1, blockSize, "block");<a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">125</span> // Make sure eviction thread has entered run method<a name="line.125"></a>
+<span class="sourceLineNo">126</span> while (!evictionThread.isEnteringRun()) {<a name="line.126"></a>
+<span class="sourceLineNo">127</span> Thread.sleep(1);<a name="line.127"></a>
+<span class="sourceLineNo">128</span> }<a name="line.128"></a>
+<span class="sourceLineNo">129</span><a name="line.129"></a>
+<span class="sourceLineNo">130</span> // Add all the blocks<a name="line.130"></a>
+<span class="sourceLineNo">131</span> for (CachedItem block : blocks) {<a name="line.131"></a>
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+<span class="sourceLineNo">134</span><a name="line.134"></a>
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+<span class="sourceLineNo">141</span><a name="line.141"></a>
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+<span class="sourceLineNo">148</span> // different environments.<a name="line.148"></a>
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+<span class="sourceLineNo">150</span> for (long prevCnt = 0 /* < number of blocks added */,<a name="line.150"></a>
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+<span class="sourceLineNo">156</span><a name="line.156"></a>
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+<span class="sourceLineNo">158</span> assertTrue(evictionCount >= 1);<a name="line.158"></a>
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+<span class="sourceLineNo">172</span> long expectedCacheSize = cache.heapSize();<a name="line.172"></a>
+<span class="sourceLineNo">173</span><a name="line.173"></a>
+<span class="sourceLineNo">174</span> // Confirm empty<a name="line.174"></a>
+<span class="sourceLineNo">175</span> for (CachedItem block : blocks) {<a name="line.175"></a>
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+<span class="sourceLineNo">178</span><a name="line.178"></a>
+<span class="sourceLineNo">179</span> // Add blocks<a name="line.179"></a>
+<span class="sourceLineNo">180</span> for (CachedItem block : blocks) {<a name="line.180"></a>
+<span class="sourceLineNo">181</span> cache.cacheBlock(block.cacheKey, block);<a name="line.181"></a>
+<span class="sourceLineNo">182</span> expectedCacheSize += block.cacheBlockHeapSize();<a name="line.182"></a>
+<span class="sourceLineNo">183</span> }<a name="line.183"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span> // Verify correctly calculated cache heap size<a name="line.185"></a>
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+<span class="sourceLineNo">188</span> // Check if all blocks are properly cached and retrieved<a name="line.188"></a>
+<span class="sourceLineNo">189</span> for (CachedItem block : blocks) {<a name="line.189"></a>
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+<span class="sourceLineNo">191</span> assertTrue(buf != null);<a name="line.191"></a>
+<span class="sourceLineNo">192</span> assertEquals(buf.heapSize(), block.heapSize());<a name="line.192"></a>
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+<span class="sourceLineNo">194</span><a name="line.194"></a>
+<span class="sourceLineNo">195</span> // Re-add same blocks and ensure nothing has changed<a name="line.195"></a>
+<span class="sourceLineNo">196</span> long expectedBlockCount = cache.getBlockCount();<a name="line.196"></a>
+<span class="sourceLineNo">197</span> for (CachedItem block : blocks) {<a name="line.197"></a>
+<span class="sourceLineNo">198</span> cache.cacheBlock(block.cacheKey, block);<a name="line.198"></a>
+<span class="sourceLineNo">199</span> }<a name="line.199"></a>
+<span class="sourceLineNo">200</span> assertEquals(<a name="line.200"></a>
+<span class="sourceLineNo">201</span> "Cache should ignore cache requests for blocks already in cache",<a name="line.201"></a>
+<span class="sourceLineNo">202</span> expectedBlockCount, cache.getBlockCount());<a name="line.202"></a>
+<span class="sourceLineNo">203</span><a name="line.203"></a>
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+<span class="sourceLineNo">210</span> assertTrue(buf != null);<a name="line.210"></a>
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+<span class="sourceLineNo">213</span><a name="line.213"></a>
+<span class="sourceLineNo">214</span> // Expect no evictions<a name="line.214"></a>
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+<span class="sourceLineNo">216</span> Thread t = new LruBlockCache.StatisticsThread(cache);<a name="line.216"></a>
+<span class="sourceLineNo">217</span> t.start();<a name="line.217"></a>
+<span class="sourceLineNo">218</span> t.join();<a name="line.218"></a>
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+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span> @Test<a name="line.221"></a>
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+<span class="sourceLineNo">226</span><a name="line.226"></a>
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+<span class="sourceLineNo">228</span><a name="line.228"></a>
+<span class="sourceLineNo">229</span> CachedItem [] blocks = generateFixedBlocks(10, blockSize, "block");<a name="line.229"></a>
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+<span class="sourceLineNo">231</span> long expectedCacheSize = cache.heapSize();<a name="line.231"></a>
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+<span class="sourceLineNo">236</span> expectedCacheSize += block.cacheBlockHeapSize();<a name="line.236"></a>
+<span class="sourceLineNo">237</span> }<a name="line.237"></a>
+<span class="sourceLineNo">238</span><a name="line.238"></a>
+<span class="sourceLineNo">239</span> // A single eviction run should have occurred<a name="line.239"></a>
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+<span class="sourceLineNo">258</span> }<a name="line.258"></a>
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+<span class="sourceLineNo">266</span><a name="line.266"></a>
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+<span class="sourceLineNo">268</span><a name="line.268"></a>
+<span class="sourceLineNo">269</span> CachedItem [] singleBlocks = generateFixedBlocks(5, 10000, "single");<a name="line.269"></a>
+<span class="sourceLineNo">270</span> CachedItem [] multiBlocks = generateFixedBlocks(5, 10000, "multi");<a name="line.270"></a>
+<span class="sourceLineNo">271</span><a name="line.271"></a>
+<span class="sourceLineNo">272</span> long expectedCacheSize = cache.heapSize();<a name="line.272"></a>
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+<span class="sourceLineNo">277</span> expectedCacheSize += block.cacheBlockHeapSize();<a name="line.277"></a>
+<span class="sourceLineNo">278</span> assertEquals(cache.getBlock(block.cacheKey, true, false, true), block);<a name="line.278"></a>
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+<span class="sourceLineNo">280</span><a name="line.280"></a>
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+<span class="sourceLineNo">287</span> // A single eviction run should have occurred<a name="line.287"></a>
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+<span class="sourceLineNo">300</span> // And is now below the acceptable limit<a name="line.300"></a>
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+<span class="sourceLineNo">303</span><a name="line.303"></a>
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+<span class="sourceLineNo">305</span> // This test makes multi go barely over its limit, in-memory<a name="line.305"></a>
+<span class="sourceLineNo">306</span> // empty, and the rest in single. Two single evictions and<a name="line.306"></a>
+<span class="sourceLineNo">307</span> // one multi eviction expected.<a name="line.307"></a>
+<span class="sourceLineNo">308</span> assertTrue(cache.getBlock(singleBlocks[0].cacheKey, true, false, true) == null);<a name="line.308"></a>
+<span class="sourceLineNo">309</span> assertTrue(cache.getBlock(multiBlocks[0].cacheKey, true, false, true) == null);<a name="line.309"></a>
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+<span class="sourceLineNo">312</span> for(int i=1;i<4;i++) {<a name="line.312"></a>
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+<span class="sourceLineNo">314</span> singleBlocks[i]);<a name="line.314"></a>
+<span class="sourceLineNo">315</span> assertEquals(cache.getBlock(multiBlocks[i].cacheKey, true, false, true),<a name="line.315"></a>
+<span class="sourceLineNo">316</span> multiBlocks[i]);<a name="line.316"></a>
+<span class="sourceLineNo">317</span> }<a name="line.317"></a>
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+<span class="sourceLineNo">319</span><a name="line.319"></a>
+<span class="sourceLineNo">320</span> @Test<a name="line.320"></a>
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+<span class="sourceLineNo">325</span><a name="line.325"></a>
+<span class="sourceLineNo">326</span> LruBlockCache cache = new LruBlockCache(maxSize, blockSize, false,<a name="line.326"></a>
+<span class="sourceLineNo">327</span> (i
<TRUNCATED>