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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.junit.Assert.assertEquals;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.junit.Assert.assertNotNull;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.junit.Assert.assertTrue;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.List;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.client.AsyncConnection;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.client.ConnectionFactory;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.client.TableDescriptor;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.client.TableDescriptorBuilder;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.testclassification.MediumTests;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.testclassification.MiscTests;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.junit.AfterClass;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.junit.BeforeClass;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.junit.ClassRule;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.junit.Test;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.junit.experimental.categories.Category;</span> |
| <span class="source-line-no">041</span><span id="line-41"></span> |
| <span class="source-line-no">042</span><span id="line-42">@Category({ MiscTests.class, MediumTests.class })</span> |
| <span class="source-line-no">043</span><span id="line-43">public class TestSplitMerge {</span> |
| <span class="source-line-no">044</span><span id="line-44"></span> |
| <span class="source-line-no">045</span><span id="line-45"> @ClassRule</span> |
| <span class="source-line-no">046</span><span id="line-46"> public static final HBaseClassTestRule CLASS_RULE =</span> |
| <span class="source-line-no">047</span><span id="line-47"> HBaseClassTestRule.forClass(TestSplitMerge.class);</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> @BeforeClass</span> |
| <span class="source-line-no">052</span><span id="line-52"> public static void setUp() throws Exception {</span> |
| <span class="source-line-no">053</span><span id="line-53"> UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_META_OPERATION_TIMEOUT, 1000);</span> |
| <span class="source-line-no">054</span><span id="line-54"> UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);</span> |
| <span class="source-line-no">055</span><span id="line-55"> UTIL.startMiniCluster(1);</span> |
| <span class="source-line-no">056</span><span id="line-56"> }</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> @AfterClass</span> |
| <span class="source-line-no">059</span><span id="line-59"> public static void tearDown() throws Exception {</span> |
| <span class="source-line-no">060</span><span id="line-60"> UTIL.shutdownMiniCluster();</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> @Test</span> |
| <span class="source-line-no">064</span><span id="line-64"> public void test() throws Exception {</span> |
| <span class="source-line-no">065</span><span id="line-65"> TableName tableName = TableName.valueOf("SplitMerge");</span> |
| <span class="source-line-no">066</span><span id="line-66"> byte[] family = Bytes.toBytes("CF");</span> |
| <span class="source-line-no">067</span><span id="line-67"> TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)</span> |
| <span class="source-line-no">068</span><span id="line-68"> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();</span> |
| <span class="source-line-no">069</span><span id="line-69"> UTIL.getAdmin().createTable(td, new byte[][] { Bytes.toBytes(1) });</span> |
| <span class="source-line-no">070</span><span id="line-70"> UTIL.waitTableAvailable(tableName);</span> |
| <span class="source-line-no">071</span><span id="line-71"> UTIL.getAdmin().split(tableName, Bytes.toBytes(2));</span> |
| <span class="source-line-no">072</span><span id="line-72"> UTIL.waitFor(30000, new ExplainingPredicate<Exception>() {</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> @Override</span> |
| <span class="source-line-no">075</span><span id="line-75"> public boolean evaluate() throws Exception {</span> |
| <span class="source-line-no">076</span><span id="line-76"> return UTIL.getMiniHBaseCluster().getRegions(tableName).size() == 3;</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> @Override</span> |
| <span class="source-line-no">080</span><span id="line-80"> public String explainFailure() throws Exception {</span> |
| <span class="source-line-no">081</span><span id="line-81"> return "Split has not finished yet";</span> |
| <span class="source-line-no">082</span><span id="line-82"> }</span> |
| <span class="source-line-no">083</span><span id="line-83"> });</span> |
| <span class="source-line-no">084</span><span id="line-84"> UTIL.waitUntilNoRegionsInTransition();</span> |
| <span class="source-line-no">085</span><span id="line-85"> RegionInfo regionA = null;</span> |
| <span class="source-line-no">086</span><span id="line-86"> RegionInfo regionB = null;</span> |
| <span class="source-line-no">087</span><span id="line-87"> for (RegionInfo region : UTIL.getAdmin().getRegions(tableName)) {</span> |
| <span class="source-line-no">088</span><span id="line-88"> if (region.getStartKey().length == 0) {</span> |
| <span class="source-line-no">089</span><span id="line-89"> regionA = region;</span> |
| <span class="source-line-no">090</span><span id="line-90"> } else if (Bytes.equals(region.getStartKey(), Bytes.toBytes(1))) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> regionB = region;</span> |
| <span class="source-line-no">092</span><span id="line-92"> }</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94"> assertNotNull(regionA);</span> |
| <span class="source-line-no">095</span><span id="line-95"> assertNotNull(regionB);</span> |
| <span class="source-line-no">096</span><span id="line-96"> UTIL.getAdmin().mergeRegionsAsync(regionA.getRegionName(), regionB.getRegionName(), false)</span> |
| <span class="source-line-no">097</span><span id="line-97"> .get(30, TimeUnit.SECONDS);</span> |
| <span class="source-line-no">098</span><span id="line-98"> assertEquals(2, UTIL.getAdmin().getRegions(tableName).size());</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> ServerName expected = UTIL.getMiniHBaseCluster().getRegionServer(0).getServerName();</span> |
| <span class="source-line-no">101</span><span id="line-101"> assertEquals(expected, UTIL.getConnection().getRegionLocator(tableName)</span> |
| <span class="source-line-no">102</span><span id="line-102"> .getRegionLocation(Bytes.toBytes(1), true).getServerName());</span> |
| <span class="source-line-no">103</span><span id="line-103"> try (AsyncConnection asyncConn =</span> |
| <span class="source-line-no">104</span><span id="line-104"> ConnectionFactory.createAsyncConnection(UTIL.getConfiguration()).get()) {</span> |
| <span class="source-line-no">105</span><span id="line-105"> assertEquals(expected, asyncConn.getRegionLocator(tableName)</span> |
| <span class="source-line-no">106</span><span id="line-106"> .getRegionLocation(Bytes.toBytes(1), true).get().getServerName());</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"></span> |
| <span class="source-line-no">110</span><span id="line-110"> @Test</span> |
| <span class="source-line-no">111</span><span id="line-111"> public void testMergeRegionOrder() throws Exception {</span> |
| <span class="source-line-no">112</span><span id="line-112"> int regionCount = 20;</span> |
| <span class="source-line-no">113</span><span id="line-113"></span> |
| <span class="source-line-no">114</span><span id="line-114"> TableName tableName = TableName.valueOf("MergeRegionOrder");</span> |
| <span class="source-line-no">115</span><span id="line-115"> byte[] family = Bytes.toBytes("CF");</span> |
| <span class="source-line-no">116</span><span id="line-116"> TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)</span> |
| <span class="source-line-no">117</span><span id="line-117"> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();</span> |
| <span class="source-line-no">118</span><span id="line-118"></span> |
| <span class="source-line-no">119</span><span id="line-119"> byte[][] splitKeys = new byte[regionCount - 1][];</span> |
| <span class="source-line-no">120</span><span id="line-120"></span> |
| <span class="source-line-no">121</span><span id="line-121"> for (int c = 0; c < regionCount - 1; c++) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> splitKeys[c] = Bytes.toBytes(c + 1 * 1000);</span> |
| <span class="source-line-no">123</span><span id="line-123"> }</span> |
| <span class="source-line-no">124</span><span id="line-124"></span> |
| <span class="source-line-no">125</span><span id="line-125"> UTIL.getAdmin().createTable(td, splitKeys);</span> |
| <span class="source-line-no">126</span><span id="line-126"> UTIL.waitTableAvailable(tableName);</span> |
| <span class="source-line-no">127</span><span id="line-127"></span> |
| <span class="source-line-no">128</span><span id="line-128"> List<RegionInfo> regions = UTIL.getAdmin().getRegions(tableName);</span> |
| <span class="source-line-no">129</span><span id="line-129"></span> |
| <span class="source-line-no">130</span><span id="line-130"> byte[][] regionNames = new byte[regionCount][];</span> |
| <span class="source-line-no">131</span><span id="line-131"> for (int c = 0; c < regionCount; c++) {</span> |
| <span class="source-line-no">132</span><span id="line-132"> regionNames[c] = regions.get(c).getRegionName();</span> |
| <span class="source-line-no">133</span><span id="line-133"> }</span> |
| <span class="source-line-no">134</span><span id="line-134"></span> |
| <span class="source-line-no">135</span><span id="line-135"> UTIL.getAdmin().mergeRegionsAsync(regionNames, false).get(60, TimeUnit.SECONDS);</span> |
| <span class="source-line-no">136</span><span id="line-136"></span> |
| <span class="source-line-no">137</span><span id="line-137"> List<RegionInfo> mergedRegions =</span> |
| <span class="source-line-no">138</span><span id="line-138"> MetaTableAccessor.getTableRegions(UTIL.getConnection(), tableName);</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> assertEquals(1, mergedRegions.size());</span> |
| <span class="source-line-no">141</span><span id="line-141"></span> |
| <span class="source-line-no">142</span><span id="line-142"> RegionInfo mergedRegion = mergedRegions.get(0);</span> |
| <span class="source-line-no">143</span><span id="line-143"></span> |
| <span class="source-line-no">144</span><span id="line-144"> List<RegionInfo> mergeParentRegions = UTIL.getMiniHBaseCluster().getMaster()</span> |
| <span class="source-line-no">145</span><span id="line-145"> .getAssignmentManager().getRegionStateStore().getMergeRegions(mergedRegion);</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> assertEquals(mergeParentRegions.size(), regionCount);</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> for (int c = 0; c < regionCount - 1; c++) {</span> |
| <span class="source-line-no">150</span><span id="line-150"> assertTrue(Bytes.compareTo(mergeParentRegions.get(c).getStartKey(),</span> |
| <span class="source-line-no">151</span><span id="line-151"> mergeParentRegions.get(c + 1).getStartKey()) < 0);</span> |
| <span class="source-line-no">152</span><span id="line-152"> }</span> |
| <span class="source-line-no">153</span><span id="line-153"> }</span> |
| <span class="source-line-no">154</span><span id="line-154">}</span> |
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