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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.io.hfile;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.HConstants.BUCKET_CACHE_IOENGINE_KEY;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.HConstants.BUCKET_CACHE_SIZE_KEY;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import static org.junit.Assert.assertEquals;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.io.hfile.CombinedBlockCache.CombinedCacheStats;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.junit.Assert;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.junit.ClassRule;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.junit.Test;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.junit.experimental.categories.Category;<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>@Category({ SmallTests.class })<a name="line.34"></a>
<span class="sourceLineNo">035</span>public class TestCombinedBlockCache {<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
<span class="sourceLineNo">037</span> @ClassRule<a name="line.37"></a>
<span class="sourceLineNo">038</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.38"></a>
<span class="sourceLineNo">039</span> HBaseClassTestRule.forClass(TestCombinedBlockCache.class);<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span> @Test<a name="line.43"></a>
<span class="sourceLineNo">044</span> public void testCombinedCacheStats() {<a name="line.44"></a>
<span class="sourceLineNo">045</span> CacheStats lruCacheStats = new CacheStats("lruCacheStats", 2);<a name="line.45"></a>
<span class="sourceLineNo">046</span> CacheStats bucketCacheStats = new CacheStats("bucketCacheStats", 2);<a name="line.46"></a>
<span class="sourceLineNo">047</span> CombinedCacheStats stats = new CombinedCacheStats(lruCacheStats, bucketCacheStats);<a name="line.47"></a>
<span class="sourceLineNo">048</span><a name="line.48"></a>
<span class="sourceLineNo">049</span> double delta = 0.01;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> // period 1:<a name="line.51"></a>
<span class="sourceLineNo">052</span> // lru cache: 1 hit caching, 1 miss caching<a name="line.52"></a>
<span class="sourceLineNo">053</span> // bucket cache: 2 hit non-caching,1 miss non-caching/primary,1 fail insert<a name="line.53"></a>
<span class="sourceLineNo">054</span> lruCacheStats.hit(true, true, BlockType.DATA);<a name="line.54"></a>
<span class="sourceLineNo">055</span> lruCacheStats.miss(true, false, BlockType.DATA);<a name="line.55"></a>
<span class="sourceLineNo">056</span> bucketCacheStats.hit(false, true, BlockType.DATA);<a name="line.56"></a>
<span class="sourceLineNo">057</span> bucketCacheStats.hit(false, true, BlockType.DATA);<a name="line.57"></a>
<span class="sourceLineNo">058</span> bucketCacheStats.miss(false, true, BlockType.DATA);<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span> assertEquals(5, stats.getRequestCount());<a name="line.60"></a>
<span class="sourceLineNo">061</span> assertEquals(2, stats.getRequestCachingCount());<a name="line.61"></a>
<span class="sourceLineNo">062</span> assertEquals(2, stats.getMissCount());<a name="line.62"></a>
<span class="sourceLineNo">063</span> assertEquals(1, stats.getPrimaryMissCount());<a name="line.63"></a>
<span class="sourceLineNo">064</span> assertEquals(1, stats.getMissCachingCount());<a name="line.64"></a>
<span class="sourceLineNo">065</span> assertEquals(3, stats.getHitCount());<a name="line.65"></a>
<span class="sourceLineNo">066</span> assertEquals(3, stats.getPrimaryHitCount());<a name="line.66"></a>
<span class="sourceLineNo">067</span> assertEquals(1, stats.getHitCachingCount());<a name="line.67"></a>
<span class="sourceLineNo">068</span> assertEquals(0.6, stats.getHitRatio(), delta);<a name="line.68"></a>
<span class="sourceLineNo">069</span> assertEquals(0.5, stats.getHitCachingRatio(), delta);<a name="line.69"></a>
<span class="sourceLineNo">070</span> assertEquals(0.4, stats.getMissRatio(), delta);<a name="line.70"></a>
<span class="sourceLineNo">071</span> assertEquals(0.5, stats.getMissCachingRatio(), delta);<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span> // lru cache: 2 evicted, 1 evict<a name="line.73"></a>
<span class="sourceLineNo">074</span> // bucket cache: 1 evict<a name="line.74"></a>
<span class="sourceLineNo">075</span> lruCacheStats.evicted(1000, true);<a name="line.75"></a>
<span class="sourceLineNo">076</span> lruCacheStats.evicted(1000, false);<a name="line.76"></a>
<span class="sourceLineNo">077</span> lruCacheStats.evict();<a name="line.77"></a>
<span class="sourceLineNo">078</span> bucketCacheStats.evict();<a name="line.78"></a>
<span class="sourceLineNo">079</span> assertEquals(2, stats.getEvictionCount());<a name="line.79"></a>
<span class="sourceLineNo">080</span> assertEquals(2, stats.getEvictedCount());<a name="line.80"></a>
<span class="sourceLineNo">081</span> assertEquals(1, stats.getPrimaryEvictedCount());<a name="line.81"></a>
<span class="sourceLineNo">082</span> assertEquals(1.0, stats.evictedPerEviction(), delta);<a name="line.82"></a>
<span class="sourceLineNo">083</span><a name="line.83"></a>
<span class="sourceLineNo">084</span> // lru cache: 1 fail insert<a name="line.84"></a>
<span class="sourceLineNo">085</span> lruCacheStats.failInsert();<a name="line.85"></a>
<span class="sourceLineNo">086</span> assertEquals(1, stats.getFailedInserts());<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span> // rollMetricsPeriod<a name="line.88"></a>
<span class="sourceLineNo">089</span> stats.rollMetricsPeriod();<a name="line.89"></a>
<span class="sourceLineNo">090</span> assertEquals(3, stats.getSumHitCountsPastNPeriods());<a name="line.90"></a>
<span class="sourceLineNo">091</span> assertEquals(5, stats.getSumRequestCountsPastNPeriods());<a name="line.91"></a>
<span class="sourceLineNo">092</span> assertEquals(1, stats.getSumHitCachingCountsPastNPeriods());<a name="line.92"></a>
<span class="sourceLineNo">093</span> assertEquals(2, stats.getSumRequestCachingCountsPastNPeriods());<a name="line.93"></a>
<span class="sourceLineNo">094</span> assertEquals(0.6, stats.getHitRatioPastNPeriods(), delta);<a name="line.94"></a>
<span class="sourceLineNo">095</span> assertEquals(0.5, stats.getHitCachingRatioPastNPeriods(), delta);<a name="line.95"></a>
<span class="sourceLineNo">096</span><a name="line.96"></a>
<span class="sourceLineNo">097</span> // period 2:<a name="line.97"></a>
<span class="sourceLineNo">098</span> // lru cache: 3 hit caching<a name="line.98"></a>
<span class="sourceLineNo">099</span> lruCacheStats.hit(true, true, BlockType.DATA);<a name="line.99"></a>
<span class="sourceLineNo">100</span> lruCacheStats.hit(true, true, BlockType.DATA);<a name="line.100"></a>
<span class="sourceLineNo">101</span> lruCacheStats.hit(true, true, BlockType.DATA);<a name="line.101"></a>
<span class="sourceLineNo">102</span> stats.rollMetricsPeriod();<a name="line.102"></a>
<span class="sourceLineNo">103</span> assertEquals(6, stats.getSumHitCountsPastNPeriods());<a name="line.103"></a>
<span class="sourceLineNo">104</span> assertEquals(8, stats.getSumRequestCountsPastNPeriods());<a name="line.104"></a>
<span class="sourceLineNo">105</span> assertEquals(4, stats.getSumHitCachingCountsPastNPeriods());<a name="line.105"></a>
<span class="sourceLineNo">106</span> assertEquals(5, stats.getSumRequestCachingCountsPastNPeriods());<a name="line.106"></a>
<span class="sourceLineNo">107</span> assertEquals(0.75, stats.getHitRatioPastNPeriods(), delta);<a name="line.107"></a>
<span class="sourceLineNo">108</span> assertEquals(0.8, stats.getHitCachingRatioPastNPeriods(), delta);<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 testMultiThreadGetAndEvictBlock() throws Exception {<a name="line.112"></a>
<span class="sourceLineNo">113</span> Configuration conf = UTIL.getConfiguration();<a name="line.113"></a>
<span class="sourceLineNo">114</span> conf.set(BUCKET_CACHE_IOENGINE_KEY, "offheap");<a name="line.114"></a>
<span class="sourceLineNo">115</span> conf.setInt(BUCKET_CACHE_SIZE_KEY, 32);<a name="line.115"></a>
<span class="sourceLineNo">116</span> BlockCache blockCache = BlockCacheFactory.createBlockCache(conf);<a name="line.116"></a>
<span class="sourceLineNo">117</span> Assert.assertTrue(blockCache instanceof CombinedBlockCache);<a name="line.117"></a>
<span class="sourceLineNo">118</span> TestLruBlockCache.testMultiThreadGetAndEvictBlockInternal(blockCache);<a name="line.118"></a>
<span class="sourceLineNo">119</span> }<a name="line.119"></a>
<span class="sourceLineNo">120</span>}<a name="line.120"></a>
</pre>
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