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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.mob;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import static org.junit.Assert.assertEquals;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import static org.junit.Assert.assertNotNull;<a name="line.21"></a>
<span class="sourceLineNo">022</span><a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.Date;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HBaseTestingUtil;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HConstants;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.KeyValue;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.TableName;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.RegionInfoBuilder;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.io.hfile.CacheConfig;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.regionserver.HMobStore;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.regionserver.StoreFileWriter;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.testclassification.SmallTests;<a name="line.44"></a>
<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.45"></a>
<span class="sourceLineNo">046</span>import org.junit.After;<a name="line.46"></a>
<span class="sourceLineNo">047</span>import org.junit.Before;<a name="line.47"></a>
<span class="sourceLineNo">048</span>import org.junit.ClassRule;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import org.junit.Test;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.junit.experimental.categories.Category;<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>@Category(SmallTests.class)<a name="line.52"></a>
<span class="sourceLineNo">053</span>public class TestMobFileCache {<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(TestMobFileCache.class);<a name="line.57"></a>
<span class="sourceLineNo">058</span><a name="line.58"></a>
<span class="sourceLineNo">059</span> private HBaseTestingUtil UTIL;<a name="line.59"></a>
<span class="sourceLineNo">060</span> private HRegion region;<a name="line.60"></a>
<span class="sourceLineNo">061</span> private Configuration conf;<a name="line.61"></a>
<span class="sourceLineNo">062</span> private MobFileCache mobFileCache;<a name="line.62"></a>
<span class="sourceLineNo">063</span> private Date currentDate = new Date();<a name="line.63"></a>
<span class="sourceLineNo">064</span> private static final String TEST_CACHE_SIZE = "2";<a name="line.64"></a>
<span class="sourceLineNo">065</span> private static final int EXPECTED_CACHE_SIZE_ZERO = 0;<a name="line.65"></a>
<span class="sourceLineNo">066</span> private static final int EXPECTED_CACHE_SIZE_ONE = 1;<a name="line.66"></a>
<span class="sourceLineNo">067</span> private static final int EXPECTED_CACHE_SIZE_TWO = 2;<a name="line.67"></a>
<span class="sourceLineNo">068</span> private static final int EXPECTED_CACHE_SIZE_THREE = 3;<a name="line.68"></a>
<span class="sourceLineNo">069</span> private static final long EXPECTED_REFERENCE_ONE = 1;<a name="line.69"></a>
<span class="sourceLineNo">070</span> private static final long EXPECTED_REFERENCE_TWO = 2;<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span> private static final String TABLE = "tableName";<a name="line.72"></a>
<span class="sourceLineNo">073</span> private static final String FAMILY1 = "family1";<a name="line.73"></a>
<span class="sourceLineNo">074</span> private static final String FAMILY2 = "family2";<a name="line.74"></a>
<span class="sourceLineNo">075</span> private static final String FAMILY3 = "family3";<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span> private static final byte[] ROW = Bytes.toBytes("row");<a name="line.77"></a>
<span class="sourceLineNo">078</span> private static final byte[] ROW2 = Bytes.toBytes("row2");<a name="line.78"></a>
<span class="sourceLineNo">079</span> private static final byte[] VALUE = Bytes.toBytes("value");<a name="line.79"></a>
<span class="sourceLineNo">080</span> private static final byte[] VALUE2 = Bytes.toBytes("value2");<a name="line.80"></a>
<span class="sourceLineNo">081</span> private static final byte[] QF1 = Bytes.toBytes("qf1");<a name="line.81"></a>
<span class="sourceLineNo">082</span> private static final byte[] QF2 = Bytes.toBytes("qf2");<a name="line.82"></a>
<span class="sourceLineNo">083</span> private static final byte[] QF3 = Bytes.toBytes("qf3");<a name="line.83"></a>
<span class="sourceLineNo">084</span><a name="line.84"></a>
<span class="sourceLineNo">085</span> @Before<a name="line.85"></a>
<span class="sourceLineNo">086</span> public void setUp() throws Exception {<a name="line.86"></a>
<span class="sourceLineNo">087</span> UTIL = new HBaseTestingUtil();<a name="line.87"></a>
<span class="sourceLineNo">088</span> conf = UTIL.getConfiguration();<a name="line.88"></a>
<span class="sourceLineNo">089</span> conf.set(MobConstants.MOB_FILE_CACHE_SIZE_KEY, TEST_CACHE_SIZE);<a name="line.89"></a>
<span class="sourceLineNo">090</span> TableDescriptorBuilder tableDescriptorBuilder =<a name="line.90"></a>
<span class="sourceLineNo">091</span> TableDescriptorBuilder.newBuilder(UTIL.createTableDescriptor(<a name="line.91"></a>
<span class="sourceLineNo">092</span> TableName.valueOf("testMobFileCache"), ColumnFamilyDescriptorBuilder.DEFAULT_MIN_VERSIONS,<a name="line.92"></a>
<span class="sourceLineNo">093</span> 3, HConstants.FOREVER, ColumnFamilyDescriptorBuilder.DEFAULT_KEEP_DELETED));<a name="line.93"></a>
<span class="sourceLineNo">094</span> ColumnFamilyDescriptor columnFamilyDescriptor = ColumnFamilyDescriptorBuilder<a name="line.94"></a>
<span class="sourceLineNo">095</span> .newBuilder(Bytes.toBytes(FAMILY1)).setMobEnabled(true).setMobThreshold(0).build();<a name="line.95"></a>
<span class="sourceLineNo">096</span> tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);<a name="line.96"></a>
<span class="sourceLineNo">097</span> columnFamilyDescriptor = ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes(FAMILY2))<a name="line.97"></a>
<span class="sourceLineNo">098</span> .setMobEnabled(true).setMobThreshold(0).build();<a name="line.98"></a>
<span class="sourceLineNo">099</span> tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);<a name="line.99"></a>
<span class="sourceLineNo">100</span> columnFamilyDescriptor = ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes(FAMILY3))<a name="line.100"></a>
<span class="sourceLineNo">101</span> .setMobEnabled(true).setMobThreshold(0).build();<a name="line.101"></a>
<span class="sourceLineNo">102</span> tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);<a name="line.102"></a>
<span class="sourceLineNo">103</span> TableDescriptor tableDescriptor = tableDescriptorBuilder.build();<a name="line.103"></a>
<span class="sourceLineNo">104</span> RegionInfo regionInfo = RegionInfoBuilder.newBuilder(tableDescriptor.getTableName()).build();<a name="line.104"></a>
<span class="sourceLineNo">105</span> mobFileCache = new MobFileCache(conf);<a name="line.105"></a>
<span class="sourceLineNo">106</span> region = HBaseTestingUtil.createRegionAndWAL(regionInfo, UTIL.getDataTestDir(), conf,<a name="line.106"></a>
<span class="sourceLineNo">107</span> tableDescriptor, mobFileCache);<a name="line.107"></a>
<span class="sourceLineNo">108</span> }<a name="line.108"></a>
<span class="sourceLineNo">109</span><a name="line.109"></a>
<span class="sourceLineNo">110</span> @After<a name="line.110"></a>
<span class="sourceLineNo">111</span> public void tearDown() throws Exception {<a name="line.111"></a>
<span class="sourceLineNo">112</span> region.close();<a name="line.112"></a>
<span class="sourceLineNo">113</span> region.getFilesystem().delete(UTIL.getDataTestDir(), true);<a name="line.113"></a>
<span class="sourceLineNo">114</span> }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span> /**<a name="line.116"></a>
<span class="sourceLineNo">117</span> * Create the mob store file.<a name="line.117"></a>
<span class="sourceLineNo">118</span> */<a name="line.118"></a>
<span class="sourceLineNo">119</span> private Path createMobStoreFile(String family) throws IOException {<a name="line.119"></a>
<span class="sourceLineNo">120</span> return createMobStoreFile(HBaseConfiguration.create(), family);<a name="line.120"></a>
<span class="sourceLineNo">121</span> }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> /**<a name="line.123"></a>
<span class="sourceLineNo">124</span> * Create the mob store file<a name="line.124"></a>
<span class="sourceLineNo">125</span> */<a name="line.125"></a>
<span class="sourceLineNo">126</span> private Path createMobStoreFile(Configuration conf, String family) throws IOException {<a name="line.126"></a>
<span class="sourceLineNo">127</span> ColumnFamilyDescriptor columnFamilyDescriptor = ColumnFamilyDescriptorBuilder<a name="line.127"></a>
<span class="sourceLineNo">128</span> .newBuilder(Bytes.toBytes(family)).setMaxVersions(4).setMobEnabled(true).build();<a name="line.128"></a>
<span class="sourceLineNo">129</span> return createMobStoreFile(columnFamilyDescriptor);<a name="line.129"></a>
<span class="sourceLineNo">130</span> }<a name="line.130"></a>
<span class="sourceLineNo">131</span><a name="line.131"></a>
<span class="sourceLineNo">132</span> /**<a name="line.132"></a>
<span class="sourceLineNo">133</span> * Create the mob store file<a name="line.133"></a>
<span class="sourceLineNo">134</span> */<a name="line.134"></a>
<span class="sourceLineNo">135</span> private Path createMobStoreFile(ColumnFamilyDescriptor columnFamilyDescriptor)<a name="line.135"></a>
<span class="sourceLineNo">136</span> throws IOException {<a name="line.136"></a>
<span class="sourceLineNo">137</span> // Setting up a Store<a name="line.137"></a>
<span class="sourceLineNo">138</span> TableName tn = TableName.valueOf(TABLE);<a name="line.138"></a>
<span class="sourceLineNo">139</span> TableDescriptorBuilder tableDescriptorBuilder = TableDescriptorBuilder.newBuilder(tn);<a name="line.139"></a>
<span class="sourceLineNo">140</span> tableDescriptorBuilder.setColumnFamily(columnFamilyDescriptor);<a name="line.140"></a>
<span class="sourceLineNo">141</span> HMobStore mobStore = (HMobStore) region.getStore(columnFamilyDescriptor.getName());<a name="line.141"></a>
<span class="sourceLineNo">142</span> KeyValue key1 = new KeyValue(ROW, columnFamilyDescriptor.getName(), QF1, 1, VALUE);<a name="line.142"></a>
<span class="sourceLineNo">143</span> KeyValue key2 = new KeyValue(ROW, columnFamilyDescriptor.getName(), QF2, 1, VALUE);<a name="line.143"></a>
<span class="sourceLineNo">144</span> KeyValue key3 = new KeyValue(ROW2, columnFamilyDescriptor.getName(), QF3, 1, VALUE2);<a name="line.144"></a>
<span class="sourceLineNo">145</span> KeyValue[] keys = new KeyValue[] { key1, key2, key3 };<a name="line.145"></a>
<span class="sourceLineNo">146</span> int maxKeyCount = keys.length;<a name="line.146"></a>
<span class="sourceLineNo">147</span> RegionInfo regionInfo = RegionInfoBuilder.newBuilder(tn).build();<a name="line.147"></a>
<span class="sourceLineNo">148</span> StoreFileWriter mobWriter = mobStore.createWriterInTmp(currentDate, maxKeyCount,<a name="line.148"></a>
<span class="sourceLineNo">149</span> columnFamilyDescriptor.getCompactionCompressionType(), regionInfo.getStartKey(), false);<a name="line.149"></a>
<span class="sourceLineNo">150</span> Path mobFilePath = mobWriter.getPath();<a name="line.150"></a>
<span class="sourceLineNo">151</span> String fileName = mobFilePath.getName();<a name="line.151"></a>
<span class="sourceLineNo">152</span> mobWriter.append(key1);<a name="line.152"></a>
<span class="sourceLineNo">153</span> mobWriter.append(key2);<a name="line.153"></a>
<span class="sourceLineNo">154</span> mobWriter.append(key3);<a name="line.154"></a>
<span class="sourceLineNo">155</span> mobWriter.close();<a name="line.155"></a>
<span class="sourceLineNo">156</span> String targetPathName = MobUtils.formatDate(currentDate);<a name="line.156"></a>
<span class="sourceLineNo">157</span> Path targetPath = new Path(mobStore.getPath(), targetPathName);<a name="line.157"></a>
<span class="sourceLineNo">158</span> mobStore.commitFile(mobFilePath, targetPath);<a name="line.158"></a>
<span class="sourceLineNo">159</span> return new Path(targetPath, fileName);<a name="line.159"></a>
<span class="sourceLineNo">160</span> }<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span> @Test<a name="line.162"></a>
<span class="sourceLineNo">163</span> public void testMobFileCache() throws Exception {<a name="line.163"></a>
<span class="sourceLineNo">164</span> FileSystem fs = FileSystem.get(conf);<a name="line.164"></a>
<span class="sourceLineNo">165</span> Path file1Path = createMobStoreFile(FAMILY1);<a name="line.165"></a>
<span class="sourceLineNo">166</span> Path file2Path = createMobStoreFile(FAMILY2);<a name="line.166"></a>
<span class="sourceLineNo">167</span> Path file3Path = createMobStoreFile(FAMILY3);<a name="line.167"></a>
<span class="sourceLineNo">168</span><a name="line.168"></a>
<span class="sourceLineNo">169</span> CacheConfig cacheConf = new CacheConfig(conf);<a name="line.169"></a>
<span class="sourceLineNo">170</span> // Before open one file by the MobFileCache<a name="line.170"></a>
<span class="sourceLineNo">171</span> assertEquals(EXPECTED_CACHE_SIZE_ZERO, mobFileCache.getCacheSize());<a name="line.171"></a>
<span class="sourceLineNo">172</span> // Open one file by the MobFileCache<a name="line.172"></a>
<span class="sourceLineNo">173</span> CachedMobFile cachedMobFile1 = (CachedMobFile) mobFileCache.openFile(fs, file1Path, cacheConf);<a name="line.173"></a>
<span class="sourceLineNo">174</span> assertEquals(EXPECTED_CACHE_SIZE_ONE, mobFileCache.getCacheSize());<a name="line.174"></a>
<span class="sourceLineNo">175</span> assertNotNull(cachedMobFile1);<a name="line.175"></a>
<span class="sourceLineNo">176</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile1.getReferenceCount());<a name="line.176"></a>
<span class="sourceLineNo">177</span><a name="line.177"></a>
<span class="sourceLineNo">178</span> // The evict is also managed by a schedule thread pool.<a name="line.178"></a>
<span class="sourceLineNo">179</span> // And its check period is set as 3600 seconds by default.<a name="line.179"></a>
<span class="sourceLineNo">180</span> // This evict should get the lock at the most time<a name="line.180"></a>
<span class="sourceLineNo">181</span> mobFileCache.evict(); // Cache not full, evict it<a name="line.181"></a>
<span class="sourceLineNo">182</span> assertEquals(EXPECTED_CACHE_SIZE_ONE, mobFileCache.getCacheSize());<a name="line.182"></a>
<span class="sourceLineNo">183</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile1.getReferenceCount());<a name="line.183"></a>
<span class="sourceLineNo">184</span><a name="line.184"></a>
<span class="sourceLineNo">185</span> mobFileCache.evictFile(file1Path.getName()); // Evict one file<a name="line.185"></a>
<span class="sourceLineNo">186</span> assertEquals(EXPECTED_CACHE_SIZE_ZERO, mobFileCache.getCacheSize());<a name="line.186"></a>
<span class="sourceLineNo">187</span> assertEquals(EXPECTED_REFERENCE_ONE, cachedMobFile1.getReferenceCount());<a name="line.187"></a>
<span class="sourceLineNo">188</span><a name="line.188"></a>
<span class="sourceLineNo">189</span> cachedMobFile1.close(); // Close the cached mob file<a name="line.189"></a>
<span class="sourceLineNo">190</span><a name="line.190"></a>
<span class="sourceLineNo">191</span> // Reopen three cached file<a name="line.191"></a>
<span class="sourceLineNo">192</span> cachedMobFile1 = (CachedMobFile) mobFileCache.openFile(fs, file1Path, cacheConf);<a name="line.192"></a>
<span class="sourceLineNo">193</span> assertEquals(EXPECTED_CACHE_SIZE_ONE, mobFileCache.getCacheSize());<a name="line.193"></a>
<span class="sourceLineNo">194</span> CachedMobFile cachedMobFile2 = (CachedMobFile) mobFileCache.openFile(fs, file2Path, cacheConf);<a name="line.194"></a>
<span class="sourceLineNo">195</span> assertEquals(EXPECTED_CACHE_SIZE_TWO, mobFileCache.getCacheSize());<a name="line.195"></a>
<span class="sourceLineNo">196</span> CachedMobFile cachedMobFile3 = (CachedMobFile) mobFileCache.openFile(fs, file3Path, cacheConf);<a name="line.196"></a>
<span class="sourceLineNo">197</span> // Before the evict<a name="line.197"></a>
<span class="sourceLineNo">198</span> // Evict the cache, should close the first file 1<a name="line.198"></a>
<span class="sourceLineNo">199</span> assertEquals(EXPECTED_CACHE_SIZE_THREE, mobFileCache.getCacheSize());<a name="line.199"></a>
<span class="sourceLineNo">200</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile1.getReferenceCount());<a name="line.200"></a>
<span class="sourceLineNo">201</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile2.getReferenceCount());<a name="line.201"></a>
<span class="sourceLineNo">202</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile3.getReferenceCount());<a name="line.202"></a>
<span class="sourceLineNo">203</span> mobFileCache.evict();<a name="line.203"></a>
<span class="sourceLineNo">204</span> assertEquals(EXPECTED_CACHE_SIZE_ONE, mobFileCache.getCacheSize());<a name="line.204"></a>
<span class="sourceLineNo">205</span> assertEquals(EXPECTED_REFERENCE_ONE, cachedMobFile1.getReferenceCount());<a name="line.205"></a>
<span class="sourceLineNo">206</span> assertEquals(EXPECTED_REFERENCE_ONE, cachedMobFile2.getReferenceCount());<a name="line.206"></a>
<span class="sourceLineNo">207</span> assertEquals(EXPECTED_REFERENCE_TWO, cachedMobFile3.getReferenceCount());<a name="line.207"></a>
<span class="sourceLineNo">208</span> }<a name="line.208"></a>
<span class="sourceLineNo">209</span>}<a name="line.209"></a>
</pre>
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