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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.master.balancer;<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>import static org.junit.Assert.assertTrue;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.ArrayList;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.List;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HBaseTestingUtility;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HDFSBlocksDistribution;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.MiniHBaseCluster;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.ServerName;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.TableName;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Table;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.HRegion;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.testclassification.MasterTests;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.junit.AfterClass;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.BeforeClass;<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>@Category({MasterTests.class, MediumTests.class})<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>public class TestRegionLocationFinder {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> @ClassRule<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> HBaseClassTestRule.forClass(TestRegionLocationFinder.class);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private static MiniHBaseCluster cluster;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private final static TableName tableName = TableName.valueOf("table");<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> private final static byte[] FAMILY = Bytes.toBytes("cf");<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private static Table table;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private final static int ServerNum = 5;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private static RegionLocationFinder finder = new RegionLocationFinder();<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> @BeforeClass<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public static void setUpBeforeClass() throws Exception {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> cluster = TEST_UTIL.startMiniCluster(ServerNum);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> table = TEST_UTIL.createTable(tableName, FAMILY, HBaseTestingUtility.KEYS_FOR_HBA_CREATE_TABLE);<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> TEST_UTIL.waitTableAvailable(tableName, 1000);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> TEST_UTIL.loadTable(table, FAMILY);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> for (int i = 0; i < ServerNum; i++) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> HRegionServer server = cluster.getRegionServer(i);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> for (HRegion region : server.getRegions(tableName)) {<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> region.flush(true);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> }<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> }<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> finder.setConf(TEST_UTIL.getConfiguration());<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> finder.setServices(cluster.getMaster());<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> finder.setClusterMetrics(cluster.getMaster().getClusterMetrics());<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> }<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span> @AfterClass<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> public static void tearDownAfterClass() throws Exception {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> table.close();<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> TEST_UTIL.deleteTable(tableName);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> TEST_UTIL.shutdownMiniCluster();<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> @Test<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> public void testInternalGetTopBlockLocation() throws Exception {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> for (int i = 0; i < ServerNum; i++) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> HRegionServer server = cluster.getRegionServer(i);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> for (HRegion region : server.getRegions(tableName)) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> // get region's hdfs block distribution by region and RegionLocationFinder,<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> // they should have same result<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> HDFSBlocksDistribution blocksDistribution1 = region.getHDFSBlocksDistribution();<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> HDFSBlocksDistribution blocksDistribution2 = finder.getBlockDistribution(region<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> .getRegionInfo());<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> assertEquals(blocksDistribution1.getUniqueBlocksTotalWeight(),<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> blocksDistribution2.getUniqueBlocksTotalWeight());<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> if (blocksDistribution1.getUniqueBlocksTotalWeight() != 0) {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> assertEquals(blocksDistribution1.getTopHosts().get(0), blocksDistribution2.getTopHosts()<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> .get(0));<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<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><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> @Test<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public void testMapHostNameToServerName() throws Exception {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> List<String> topHosts = new ArrayList<>();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> for (int i = 0; i < ServerNum; i++) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> HRegionServer server = cluster.getRegionServer(i);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> String serverHost = server.getServerName().getHostname();<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> if (!topHosts.contains(serverHost)) {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> topHosts.add(serverHost);<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> }<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> List<ServerName> servers = finder.mapHostNameToServerName(topHosts);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> // mini cluster, all rs in one host<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> assertEquals(1, topHosts.size());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> for (int i = 0; i < ServerNum; i++) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> ServerName server = cluster.getRegionServer(i).getServerName();<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> assertTrue(servers.contains(server));<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span><a name="line.126"></a> |
| <span class="sourceLineNo">127</span> @Test<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> public void testGetTopBlockLocations() throws Exception {<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> for (int i = 0; i < ServerNum; i++) {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> HRegionServer server = cluster.getRegionServer(i);<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> for (HRegion region : server.getRegions(tableName)) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> List<ServerName> servers = finder.getTopBlockLocations(region<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> .getRegionInfo());<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // test table may have empty region<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> if (region.getHDFSBlocksDistribution().getUniqueBlocksTotalWeight() == 0) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> continue;<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> }<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> List<String> topHosts = region.getHDFSBlocksDistribution().getTopHosts();<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> // rs and datanode may have different host in local machine test<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> if (!topHosts.contains(server.getServerName().getHostname())) {<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> continue;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> for (int j = 0; j < ServerNum; j++) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ServerName serverName = cluster.getRegionServer(j).getServerName();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> assertTrue(servers.contains(serverName));<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> }<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> @Test<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> public void testRefreshAndWait() throws Exception {<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> finder.getCache().invalidateAll();<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> for (int i = 0; i < ServerNum; i++) {<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> HRegionServer server = cluster.getRegionServer(i);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> List<HRegion> regions = server.getRegions(tableName);<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> if (regions.size() <= 0) {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> continue;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> }<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> List<RegionInfo> regionInfos = new ArrayList<>(regions.size());<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> for (HRegion region : regions) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> regionInfos.add(region.getRegionInfo());<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> finder.refreshAndWait(regionInfos);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> for (RegionInfo regionInfo : regionInfos) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> assertNotNull(finder.getCache().getIfPresent(regionInfo));<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> }<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span>}<a name="line.170"></a> |
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