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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.assertTrue;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.mockito.Mockito.mock;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.mockito.Mockito.when;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.HashMap;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.HashSet;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Map;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.Set;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.TreeMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.conf.Configuration;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.ClusterMetrics;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.HBaseClassTestRule;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.RegionMetrics;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.ServerMetrics;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.ServerName;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.Size;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.TableName;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.master.RegionPlan;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.rsgroup.RSGroupBasedLoadBalancer;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.rsgroup.RSGroupInfo;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.testclassification.LargeTests;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.junit.BeforeClass;<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>/**<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> * Test RSGroupBasedLoadBalancer with StochasticLoadBalancer as internal balancer<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> */<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>@Category(LargeTests.class)<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>public class TestRSGroupBasedLoadBalancerWithStochasticLoadBalancerAsInternal<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> extends RSGroupableBalancerTestBase {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> @ClassRule<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> public static final HBaseClassTestRule CLASS_RULE = HBaseClassTestRule.forClass(<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> TestRSGroupBasedLoadBalancerWithStochasticLoadBalancerAsInternal.class);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private static RSGroupBasedLoadBalancer loadBalancer;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> @BeforeClass<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public static void beforeAllTests() throws Exception {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> groups = new String[] { RSGroupInfo.DEFAULT_GROUP };<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> servers = generateServers(3);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> groupMap = constructGroupInfo(servers, groups);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> tableDescs = constructTableDesc(false);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> Configuration conf = HBaseConfiguration.create();<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> conf.set("hbase.regions.slop", "0");<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> conf.setFloat("hbase.master.balancer.stochastic.readRequestCost", 10000f);<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> conf.set("hbase.rsgroup.grouploadbalancer.class",<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> StochasticLoadBalancer.class.getCanonicalName());<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> loadBalancer = new RSGroupBasedLoadBalancer();<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> loadBalancer.setRsGroupInfoManager(getMockedGroupInfoManager());<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> loadBalancer.setMasterServices(getMockedMaster());<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> loadBalancer.setConf(conf);<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> loadBalancer.initialize();<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> private ServerMetrics mockServerMetricsWithReadRequests(ServerName server,<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> List<RegionInfo> regionsOnServer, long readRequestCount) {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> ServerMetrics serverMetrics = mock(ServerMetrics.class);<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> Map<byte[], RegionMetrics> regionLoadMap = new TreeMap<>(Bytes.BYTES_COMPARATOR);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> for(RegionInfo info : regionsOnServer){<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> RegionMetrics rl = mock(RegionMetrics.class);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> when(rl.getReadRequestCount()).thenReturn(readRequestCount);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> when(rl.getCpRequestCount()).thenReturn(0L);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> when(rl.getWriteRequestCount()).thenReturn(0L);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> when(rl.getMemStoreSize()).thenReturn(Size.ZERO);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> when(rl.getStoreFileSize()).thenReturn(Size.ZERO);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> regionLoadMap.put(info.getRegionName(), rl);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> when(serverMetrics.getRegionMetrics()).thenReturn(regionLoadMap);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> return serverMetrics;<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> /**<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * Test HBASE-20791<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> */<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> @Test<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public void testBalanceCluster() throws IOException {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> // mock cluster State<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> Map<ServerName, List<RegionInfo>> clusterState = new HashMap<ServerName, List<RegionInfo>>();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> ServerName serverA = servers.get(0);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> ServerName serverB = servers.get(1);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> ServerName serverC = servers.get(2);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> List<RegionInfo> regionsOnServerA = randomRegions(3);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> List<RegionInfo> regionsOnServerB = randomRegions(3);<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> List<RegionInfo> regionsOnServerC = randomRegions(3);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> clusterState.put(serverA, regionsOnServerA);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> clusterState.put(serverB, regionsOnServerB);<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> clusterState.put(serverC, regionsOnServerC);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> // mock ClusterMetrics<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> Map<ServerName, ServerMetrics> serverMetricsMap = new TreeMap<>();<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> serverMetricsMap.put(serverA, mockServerMetricsWithReadRequests(serverA, regionsOnServerA, 0));<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> serverMetricsMap.put(serverB, mockServerMetricsWithReadRequests(serverB, regionsOnServerB, 0));<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> serverMetricsMap.put(serverC, mockServerMetricsWithReadRequests(serverC, regionsOnServerC, 0));<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> ClusterMetrics clusterStatus = mock(ClusterMetrics.class);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> when(clusterStatus.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> loadBalancer.setClusterMetrics(clusterStatus);<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> // ReadRequestCostFunction are Rate based, So doing setClusterMetrics again<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // this time, regions on serverA with more readRequestCount load<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // serverA : 1000,1000,1000<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // serverB : 0,0,0<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // serverC : 0,0,0<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // so should move two regions from serverA to serverB & serverC<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> serverMetricsMap = new TreeMap<>();<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> serverMetricsMap.put(serverA, mockServerMetricsWithReadRequests(serverA,<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> regionsOnServerA, 1000));<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> serverMetricsMap.put(serverB, mockServerMetricsWithReadRequests(serverB, regionsOnServerB, 0));<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> serverMetricsMap.put(serverC, mockServerMetricsWithReadRequests(serverC, regionsOnServerC, 0));<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> clusterStatus = mock(ClusterMetrics.class);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> when(clusterStatus.getLiveServerMetrics()).thenReturn(serverMetricsMap);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> loadBalancer.setClusterMetrics(clusterStatus);<a name="line.136"></a> |
| <span class="sourceLineNo">137</span><a name="line.137"></a> |
| <span class="sourceLineNo">138</span> Map<TableName, Map<ServerName, List<RegionInfo>>> LoadOfAllTable =<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> (Map) mockClusterServersWithTables(clusterState);<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> List<RegionPlan> plans = loadBalancer.balanceCluster(LoadOfAllTable);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> Set<RegionInfo> regionsMoveFromServerA = new HashSet<>();<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> Set<ServerName> targetServers = new HashSet<>();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> for(RegionPlan plan : plans) {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> if(plan.getSource().equals(serverA)) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> regionsMoveFromServerA.add(plan.getRegionInfo());<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> targetServers.add(plan.getDestination());<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> // should move 2 regions from serverA, one moves to serverB, the other moves to serverC<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> assertEquals(2, regionsMoveFromServerA.size());<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> assertEquals(2, targetServers.size());<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> assertTrue(regionsOnServerA.containsAll(regionsMoveFromServerA));<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span>}<a name="line.154"></a> |
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