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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 java.io.IOException;</span>
<span class="source-line-no">021</span><span id="line-21">import java.util.concurrent.TimeUnit;</span>
<span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.client.Admin;</span>
<span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;</span>
<span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;</span>
<span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.client.TableDescriptor;</span>
<span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.client.TableDescriptorBuilder;</span>
<span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.testclassification.IntegrationTests;</span>
<span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.util.Bytes;</span>
<span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span>
<span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.util.RegionSplitter;</span>
<span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.RegionSplitter.SplitAlgorithm;</span>
<span class="source-line-no">032</span><span id="line-32">import org.junit.After;</span>
<span class="source-line-no">033</span><span id="line-33">import org.junit.Before;</span>
<span class="source-line-no">034</span><span id="line-34">import org.junit.ClassRule;</span>
<span class="source-line-no">035</span><span id="line-35">import org.junit.Test;</span>
<span class="source-line-no">036</span><span id="line-36">import org.junit.experimental.categories.Category;</span>
<span class="source-line-no">037</span><span id="line-37">import org.junit.rules.TestRule;</span>
<span class="source-line-no">038</span><span id="line-38">import org.junit.rules.Timeout;</span>
<span class="source-line-no">039</span><span id="line-39">import org.slf4j.Logger;</span>
<span class="source-line-no">040</span><span id="line-40">import org.slf4j.LoggerFactory;</span>
<span class="source-line-no">041</span><span id="line-41"></span>
<span class="source-line-no">042</span><span id="line-42">/**</span>
<span class="source-line-no">043</span><span id="line-43"> * An integration test to detect regressions in HBASE-7220. Create a table with many regions and</span>
<span class="source-line-no">044</span><span id="line-44"> * verify it completes within a reasonable amount of time.</span>
<span class="source-line-no">045</span><span id="line-45"> * @see &lt;a href="https://issues.apache.org/jira/browse/HBASE-7220"&gt;HBASE-7220&lt;/a&gt;</span>
<span class="source-line-no">046</span><span id="line-46"> */</span>
<span class="source-line-no">047</span><span id="line-47">@Category(IntegrationTests.class)</span>
<span class="source-line-no">048</span><span id="line-48">public class IntegrationTestManyRegions {</span>
<span class="source-line-no">049</span><span id="line-49"> private static final String CLASS_NAME = IntegrationTestManyRegions.class.getSimpleName();</span>
<span class="source-line-no">050</span><span id="line-50"></span>
<span class="source-line-no">051</span><span id="line-51"> protected static final Logger LOG = LoggerFactory.getLogger(IntegrationTestManyRegions.class);</span>
<span class="source-line-no">052</span><span id="line-52"> protected static final TableName TABLE_NAME = TableName.valueOf(CLASS_NAME);</span>
<span class="source-line-no">053</span><span id="line-53"> protected static final String REGION_COUNT_KEY = String.format("hbase.%s.regions", CLASS_NAME);</span>
<span class="source-line-no">054</span><span id="line-54"> protected static final String REGIONSERVER_COUNT_KEY =</span>
<span class="source-line-no">055</span><span id="line-55"> String.format("hbase.%s.regionServers", CLASS_NAME);</span>
<span class="source-line-no">056</span><span id="line-56"> protected static final String TIMEOUT_MINUTES_KEY =</span>
<span class="source-line-no">057</span><span id="line-57"> String.format("hbase.%s.timeoutMinutes", CLASS_NAME);</span>
<span class="source-line-no">058</span><span id="line-58"></span>
<span class="source-line-no">059</span><span id="line-59"> protected static final IntegrationTestingUtility UTIL = new IntegrationTestingUtility();</span>
<span class="source-line-no">060</span><span id="line-60"></span>
<span class="source-line-no">061</span><span id="line-61"> protected static final int DEFAULT_REGION_COUNT = 1000;</span>
<span class="source-line-no">062</span><span id="line-62"> protected static final int REGION_COUNT =</span>
<span class="source-line-no">063</span><span id="line-63"> UTIL.getConfiguration().getInt(REGION_COUNT_KEY, DEFAULT_REGION_COUNT);</span>
<span class="source-line-no">064</span><span id="line-64"> protected static final int DEFAULT_REGIONSERVER_COUNT = 1;</span>
<span class="source-line-no">065</span><span id="line-65"> protected static final int REGION_SERVER_COUNT =</span>
<span class="source-line-no">066</span><span id="line-66"> UTIL.getConfiguration().getInt(REGIONSERVER_COUNT_KEY, DEFAULT_REGIONSERVER_COUNT);</span>
<span class="source-line-no">067</span><span id="line-67"> // running on laptop, consistently takes about 2.5 minutes.</span>
<span class="source-line-no">068</span><span id="line-68"> // A timeout of 5 minutes should be reasonably safe.</span>
<span class="source-line-no">069</span><span id="line-69"> protected static final int DEFAULT_TIMEOUT_MINUTES = 5;</span>
<span class="source-line-no">070</span><span id="line-70"> protected static final int TIMEOUT_MINUTES =</span>
<span class="source-line-no">071</span><span id="line-71"> UTIL.getConfiguration().getInt(TIMEOUT_MINUTES_KEY, DEFAULT_TIMEOUT_MINUTES);</span>
<span class="source-line-no">072</span><span id="line-72"> // This timeout is suitable since there is only single testcase in this test.</span>
<span class="source-line-no">073</span><span id="line-73"> @ClassRule</span>
<span class="source-line-no">074</span><span id="line-74"> public static final TestRule timeout = Timeout.builder()</span>
<span class="source-line-no">075</span><span id="line-75"> .withTimeout(TIMEOUT_MINUTES, TimeUnit.MINUTES).withLookingForStuckThread(true).build();</span>
<span class="source-line-no">076</span><span id="line-76"></span>
<span class="source-line-no">077</span><span id="line-77"> private Admin admin;</span>
<span class="source-line-no">078</span><span id="line-78"></span>
<span class="source-line-no">079</span><span id="line-79"> @Before</span>
<span class="source-line-no">080</span><span id="line-80"> public void setUp() throws Exception {</span>
<span class="source-line-no">081</span><span id="line-81"> LOG.info(String.format("Initializing cluster with %d region servers.", REGION_SERVER_COUNT));</span>
<span class="source-line-no">082</span><span id="line-82"> UTIL.initializeCluster(REGION_SERVER_COUNT);</span>
<span class="source-line-no">083</span><span id="line-83"> LOG.info("Cluster initialized");</span>
<span class="source-line-no">084</span><span id="line-84"></span>
<span class="source-line-no">085</span><span id="line-85"> admin = UTIL.getAdmin();</span>
<span class="source-line-no">086</span><span id="line-86"> if (admin.tableExists(TABLE_NAME)) {</span>
<span class="source-line-no">087</span><span id="line-87"> LOG.info(String.format("Deleting existing table %s.", TABLE_NAME));</span>
<span class="source-line-no">088</span><span id="line-88"> if (admin.isTableEnabled(TABLE_NAME)) admin.disableTable(TABLE_NAME);</span>
<span class="source-line-no">089</span><span id="line-89"> admin.deleteTable(TABLE_NAME);</span>
<span class="source-line-no">090</span><span id="line-90"> LOG.info(String.format("Existing table %s deleted.", TABLE_NAME));</span>
<span class="source-line-no">091</span><span id="line-91"> }</span>
<span class="source-line-no">092</span><span id="line-92"> LOG.info("Cluster ready");</span>
<span class="source-line-no">093</span><span id="line-93"> }</span>
<span class="source-line-no">094</span><span id="line-94"></span>
<span class="source-line-no">095</span><span id="line-95"> @After</span>
<span class="source-line-no">096</span><span id="line-96"> public void tearDown() throws IOException {</span>
<span class="source-line-no">097</span><span id="line-97"> LOG.info("Cleaning up after test.");</span>
<span class="source-line-no">098</span><span id="line-98"> if (admin.tableExists(TABLE_NAME)) {</span>
<span class="source-line-no">099</span><span id="line-99"> if (admin.isTableEnabled(TABLE_NAME)) admin.disableTable(TABLE_NAME);</span>
<span class="source-line-no">100</span><span id="line-100"> admin.deleteTable(TABLE_NAME);</span>
<span class="source-line-no">101</span><span id="line-101"> }</span>
<span class="source-line-no">102</span><span id="line-102"> LOG.info("Restoring cluster.");</span>
<span class="source-line-no">103</span><span id="line-103"> UTIL.restoreCluster();</span>
<span class="source-line-no">104</span><span id="line-104"> LOG.info("Cluster restored.");</span>
<span class="source-line-no">105</span><span id="line-105"> }</span>
<span class="source-line-no">106</span><span id="line-106"></span>
<span class="source-line-no">107</span><span id="line-107"> @Test</span>
<span class="source-line-no">108</span><span id="line-108"> public void testCreateTableWithRegions() throws Exception {</span>
<span class="source-line-no">109</span><span id="line-109"> ColumnFamilyDescriptor columnFamilyDescriptor =</span>
<span class="source-line-no">110</span><span id="line-110"> ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes("cf")).build();</span>
<span class="source-line-no">111</span><span id="line-111"> TableDescriptor tableDescriptor =</span>
<span class="source-line-no">112</span><span id="line-112"> TableDescriptorBuilder.newBuilder(TABLE_NAME).setColumnFamily(columnFamilyDescriptor).build();</span>
<span class="source-line-no">113</span><span id="line-113"></span>
<span class="source-line-no">114</span><span id="line-114"> SplitAlgorithm algo = new RegionSplitter.HexStringSplit();</span>
<span class="source-line-no">115</span><span id="line-115"> byte[][] splits = algo.split(REGION_COUNT);</span>
<span class="source-line-no">116</span><span id="line-116"></span>
<span class="source-line-no">117</span><span id="line-117"> LOG.info(String.format("Creating table %s with %d splits.", TABLE_NAME, REGION_COUNT));</span>
<span class="source-line-no">118</span><span id="line-118"> long startTime = EnvironmentEdgeManager.currentTime();</span>
<span class="source-line-no">119</span><span id="line-119"> try {</span>
<span class="source-line-no">120</span><span id="line-120"> admin.createTable(tableDescriptor, splits);</span>
<span class="source-line-no">121</span><span id="line-121"> LOG.info(String.format("Pre-split table created successfully in %dms.",</span>
<span class="source-line-no">122</span><span id="line-122"> (EnvironmentEdgeManager.currentTime() - startTime)));</span>
<span class="source-line-no">123</span><span id="line-123"> } catch (IOException e) {</span>
<span class="source-line-no">124</span><span id="line-124"> LOG.error("Failed to create table", e);</span>
<span class="source-line-no">125</span><span id="line-125"> }</span>
<span class="source-line-no">126</span><span id="line-126"> }</span>
<span class="source-line-no">127</span><span id="line-127">}</span>
</pre>
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