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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;<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.List;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.concurrent.TimeUnit;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Waiter.ExplainingPredicate;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.client.AsyncConnection;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.client.TableDescriptor;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.TableDescriptorBuilder;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.testclassification.MediumTests;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.testclassification.MiscTests;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.junit.AfterClass;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.junit.BeforeClass;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.junit.ClassRule;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.junit.Test;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.junit.experimental.categories.Category;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span>@Category({ MiscTests.class, MediumTests.class })<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>public class TestSplitMerge {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> @ClassRule<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> public static final HBaseClassTestRule CLASS_RULE =<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> HBaseClassTestRule.forClass(TestSplitMerge.class);<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private static final HBaseTestingUtil UTIL = new HBaseTestingUtil();<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> @BeforeClass<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> public static void setUp() throws Exception {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_META_OPERATION_TIMEOUT, 1000);<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> UTIL.getConfiguration().setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> UTIL.startMiniCluster(1);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> @AfterClass<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> public static void tearDown() throws Exception {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> UTIL.shutdownMiniCluster();<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> }<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> @Test<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public void test() throws Exception {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> TableName tableName = TableName.valueOf("SplitMerge");<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> byte[] family = Bytes.toBytes("CF");<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> UTIL.getAdmin().createTable(td, new byte[][] { Bytes.toBytes(1) });<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> UTIL.waitTableAvailable(tableName);<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> UTIL.getAdmin().split(tableName, Bytes.toBytes(2));<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> UTIL.waitFor(30000, new ExplainingPredicate<Exception>() {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span><a name="line.73"></a> |
| <span class="sourceLineNo">074</span> @Override<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public boolean evaluate() throws Exception {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> return UTIL.getMiniHBaseCluster().getRegions(tableName).size() == 3;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> @Override<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> public String explainFailure() throws Exception {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> return "Split has not finished yet";<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> });<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> UTIL.waitUntilNoRegionsInTransition();<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> RegionInfo regionA = null;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> RegionInfo regionB = null;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> for (RegionInfo region : UTIL.getAdmin().getRegions(tableName)) {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> if (region.getStartKey().length == 0) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> regionA = region;<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> } else if (Bytes.equals(region.getStartKey(), Bytes.toBytes(1))) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> regionB = region;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> assertNotNull(regionA);<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> assertNotNull(regionB);<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> UTIL.getAdmin().mergeRegionsAsync(regionA.getRegionName(), regionB.getRegionName(), false)<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> .get(30, TimeUnit.SECONDS);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> assertEquals(2, UTIL.getAdmin().getRegions(tableName).size());<a name="line.98"></a> |
| <span class="sourceLineNo">099</span><a name="line.99"></a> |
| <span class="sourceLineNo">100</span> ServerName expected = UTIL.getMiniHBaseCluster().getRegionServer(0).getServerName();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> assertEquals(expected, UTIL.getConnection().getRegionLocator(tableName)<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> .getRegionLocation(Bytes.toBytes(1), true).getServerName());<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> try (AsyncConnection asyncConn =<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> ConnectionFactory.createAsyncConnection(UTIL.getConfiguration()).get()) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> assertEquals(expected, asyncConn.getRegionLocator(tableName)<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> .getRegionLocation(Bytes.toBytes(1), true).get().getServerName());<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<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> @Test<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public void testMergeRegionOrder() throws Exception {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> int regionCount = 20;<a name="line.112"></a> |
| <span class="sourceLineNo">113</span><a name="line.113"></a> |
| <span class="sourceLineNo">114</span> TableName tableName = TableName.valueOf("MergeRegionOrder");<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> byte[] family = Bytes.toBytes("CF");<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> TableDescriptor td = TableDescriptorBuilder.newBuilder(tableName)<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> .setColumnFamily(ColumnFamilyDescriptorBuilder.of(family)).build();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> byte[][] splitKeys = new byte[regionCount - 1][];<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> for (int c = 0; c < regionCount - 1; c++) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> splitKeys[c] = Bytes.toBytes(c + 1 * 1000);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> UTIL.getAdmin().createTable(td, splitKeys);<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> UTIL.waitTableAvailable(tableName);<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> List<RegionInfo> regions = UTIL.getAdmin().getRegions(tableName);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span><a name="line.129"></a> |
| <span class="sourceLineNo">130</span> byte[][] regionNames = new byte[regionCount][];<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> for (int c = 0; c < regionCount; c++) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> regionNames[c] = regions.get(c).getRegionName();<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> UTIL.getAdmin().mergeRegionsAsync(regionNames, false).get(60, TimeUnit.SECONDS);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span><a name="line.136"></a> |
| <span class="sourceLineNo">137</span> List<RegionInfo> mergedRegions =<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> MetaTableAccessor.getTableRegions(UTIL.getConnection(), tableName);<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> assertEquals(1, mergedRegions.size());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span><a name="line.141"></a> |
| <span class="sourceLineNo">142</span> RegionInfo mergedRegion = mergedRegions.get(0);<a name="line.142"></a> |
| <span class="sourceLineNo">143</span><a name="line.143"></a> |
| <span class="sourceLineNo">144</span> List<RegionInfo> mergeParentRegions = UTIL.getMiniHBaseCluster().getMaster()<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> .getAssignmentManager().getRegionStateStore().getMergeRegions(mergedRegion);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span><a name="line.146"></a> |
| <span class="sourceLineNo">147</span> assertEquals(mergeParentRegions.size(), regionCount);<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> for (int c = 0; c < regionCount - 1; c++) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> assertTrue(Bytes.compareTo(mergeParentRegions.get(c).getStartKey(),<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> mergeParentRegions.get(c + 1).getStartKey()) < 0);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<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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| </pre> |
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