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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.backup.impl;</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.apache.hadoop.hbase.backup.BackupRestoreConstants.BACKUP_ATTEMPTS_PAUSE_MS_KEY;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.backup.BackupRestoreConstants.BACKUP_MAX_ATTEMPTS_KEY;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.backup.BackupRestoreConstants.DEFAULT_BACKUP_ATTEMPTS_PAUSE_MS;</span> |
| <span class="source-line-no">023</span><span id="line-23">import static org.apache.hadoop.hbase.backup.BackupRestoreConstants.DEFAULT_BACKUP_MAX_ATTEMPTS;</span> |
| <span class="source-line-no">024</span><span id="line-24">import static org.apache.hadoop.hbase.backup.BackupRestoreConstants.JOB_NAME_CONF_KEY;</span> |
| <span class="source-line-no">025</span><span id="line-25"></span> |
| <span class="source-line-no">026</span><span id="line-26">import java.io.IOException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.ArrayList;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.List;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.Map;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.backup.BackupCopyJob;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.backup.BackupInfo;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.backup.BackupInfo.BackupPhase;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.backup.BackupInfo.BackupState;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.backup.BackupRequest;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.backup.BackupRestoreFactory;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.backup.BackupType;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.backup.util.BackupUtils;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.client.Admin;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.slf4j.Logger;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">/**</span> |
| <span class="source-line-no">047</span><span id="line-47"> * Full table backup implementation</span> |
| <span class="source-line-no">048</span><span id="line-48"> */</span> |
| <span class="source-line-no">049</span><span id="line-49">@InterfaceAudience.Private</span> |
| <span class="source-line-no">050</span><span id="line-50">public class FullTableBackupClient extends TableBackupClient {</span> |
| <span class="source-line-no">051</span><span id="line-51"> private static final Logger LOG = LoggerFactory.getLogger(FullTableBackupClient.class);</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> public FullTableBackupClient() {</span> |
| <span class="source-line-no">054</span><span id="line-54"> }</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> public FullTableBackupClient(final Connection conn, final String backupId, BackupRequest request)</span> |
| <span class="source-line-no">057</span><span id="line-57"> throws IOException {</span> |
| <span class="source-line-no">058</span><span id="line-58"> super(conn, backupId, request);</span> |
| <span class="source-line-no">059</span><span id="line-59"> }</span> |
| <span class="source-line-no">060</span><span id="line-60"></span> |
| <span class="source-line-no">061</span><span id="line-61"> /**</span> |
| <span class="source-line-no">062</span><span id="line-62"> * Do snapshot copy.</span> |
| <span class="source-line-no">063</span><span id="line-63"> * @param backupInfo backup info</span> |
| <span class="source-line-no">064</span><span id="line-64"> * @throws Exception exception</span> |
| <span class="source-line-no">065</span><span id="line-65"> */</span> |
| <span class="source-line-no">066</span><span id="line-66"> protected void snapshotCopy(BackupInfo backupInfo) throws Exception {</span> |
| <span class="source-line-no">067</span><span id="line-67"> LOG.info("Snapshot copy is starting.");</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> // set overall backup phase: snapshot_copy</span> |
| <span class="source-line-no">070</span><span id="line-70"> backupInfo.setPhase(BackupPhase.SNAPSHOTCOPY);</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> // call ExportSnapshot to copy files based on hbase snapshot for backup</span> |
| <span class="source-line-no">073</span><span id="line-73"> // ExportSnapshot only support single snapshot export, need loop for multiple tables case</span> |
| <span class="source-line-no">074</span><span id="line-74"> BackupCopyJob copyService = BackupRestoreFactory.getBackupCopyJob(conf);</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> // number of snapshots matches number of tables</span> |
| <span class="source-line-no">077</span><span id="line-77"> float numOfSnapshots = backupInfo.getSnapshotNames().size();</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> LOG.debug("There are " + (int) numOfSnapshots + " snapshots to be copied.");</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> for (TableName table : backupInfo.getTables()) {</span> |
| <span class="source-line-no">082</span><span id="line-82"> // Currently we simply set the sub copy tasks by counting the table snapshot number, we can</span> |
| <span class="source-line-no">083</span><span id="line-83"> // calculate the real files' size for the percentage in the future.</span> |
| <span class="source-line-no">084</span><span id="line-84"> // backupCopier.setSubTaskPercntgInWholeTask(1f / numOfSnapshots);</span> |
| <span class="source-line-no">085</span><span id="line-85"> int res;</span> |
| <span class="source-line-no">086</span><span id="line-86"> ArrayList<String> argsList = new ArrayList<>();</span> |
| <span class="source-line-no">087</span><span id="line-87"> argsList.add("-snapshot");</span> |
| <span class="source-line-no">088</span><span id="line-88"> argsList.add(backupInfo.getSnapshotName(table));</span> |
| <span class="source-line-no">089</span><span id="line-89"> argsList.add("-copy-to");</span> |
| <span class="source-line-no">090</span><span id="line-90"> argsList.add(backupInfo.getTableBackupDir(table));</span> |
| <span class="source-line-no">091</span><span id="line-91"> if (backupInfo.getBandwidth() > -1) {</span> |
| <span class="source-line-no">092</span><span id="line-92"> argsList.add("-bandwidth");</span> |
| <span class="source-line-no">093</span><span id="line-93"> argsList.add(String.valueOf(backupInfo.getBandwidth()));</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"> if (backupInfo.getWorkers() > -1) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> argsList.add("-mappers");</span> |
| <span class="source-line-no">097</span><span id="line-97"> argsList.add(String.valueOf(backupInfo.getWorkers()));</span> |
| <span class="source-line-no">098</span><span id="line-98"> }</span> |
| <span class="source-line-no">099</span><span id="line-99"> if (backupInfo.getNoChecksumVerify()) {</span> |
| <span class="source-line-no">100</span><span id="line-100"> argsList.add("-no-checksum-verify");</span> |
| <span class="source-line-no">101</span><span id="line-101"> }</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> String[] args = argsList.toArray(new String[0]);</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> String jobname = "Full-Backup_" + backupInfo.getBackupId() + "_" + table.getNameAsString();</span> |
| <span class="source-line-no">106</span><span id="line-106"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">107</span><span id="line-107"> LOG.debug("Setting snapshot copy job name to : " + jobname);</span> |
| <span class="source-line-no">108</span><span id="line-108"> }</span> |
| <span class="source-line-no">109</span><span id="line-109"> conf.set(JOB_NAME_CONF_KEY, jobname);</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> LOG.debug("Copy snapshot " + args[1] + " to " + args[3]);</span> |
| <span class="source-line-no">112</span><span id="line-112"> res = copyService.copy(backupInfo, backupManager, conf, BackupType.FULL, args);</span> |
| <span class="source-line-no">113</span><span id="line-113"></span> |
| <span class="source-line-no">114</span><span id="line-114"> // if one snapshot export failed, do not continue for remained snapshots</span> |
| <span class="source-line-no">115</span><span id="line-115"> if (res != 0) {</span> |
| <span class="source-line-no">116</span><span id="line-116"> LOG.error("Exporting Snapshot " + args[1] + " failed with return code: " + res + ".");</span> |
| <span class="source-line-no">117</span><span id="line-117"></span> |
| <span class="source-line-no">118</span><span id="line-118"> throw new IOException("Failed of exporting snapshot " + args[1] + " to " + args[3]</span> |
| <span class="source-line-no">119</span><span id="line-119"> + " with reason code " + res);</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> conf.unset(JOB_NAME_CONF_KEY);</span> |
| <span class="source-line-no">123</span><span id="line-123"> LOG.info("Snapshot copy " + args[1] + " finished.");</span> |
| <span class="source-line-no">124</span><span id="line-124"> }</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> |
| <span class="source-line-no">128</span><span id="line-128"> * Backup request execution.</span> |
| <span class="source-line-no">129</span><span id="line-129"> * @throws IOException if the execution of the backup fails</span> |
| <span class="source-line-no">130</span><span id="line-130"> */</span> |
| <span class="source-line-no">131</span><span id="line-131"> @Override</span> |
| <span class="source-line-no">132</span><span id="line-132"> public void execute() throws IOException {</span> |
| <span class="source-line-no">133</span><span id="line-133"> try (Admin admin = conn.getAdmin()) {</span> |
| <span class="source-line-no">134</span><span id="line-134"> // Begin BACKUP</span> |
| <span class="source-line-no">135</span><span id="line-135"> beginBackup(backupManager, backupInfo);</span> |
| <span class="source-line-no">136</span><span id="line-136"> String savedStartCode;</span> |
| <span class="source-line-no">137</span><span id="line-137"> boolean firstBackup;</span> |
| <span class="source-line-no">138</span><span id="line-138"> // do snapshot for full table backup</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> savedStartCode = backupManager.readBackupStartCode();</span> |
| <span class="source-line-no">141</span><span id="line-141"> firstBackup = savedStartCode == null || Long.parseLong(savedStartCode) == 0L;</span> |
| <span class="source-line-no">142</span><span id="line-142"> if (firstBackup) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> // This is our first backup. Let's put some marker to system table so that we can hold the</span> |
| <span class="source-line-no">144</span><span id="line-144"> // logs while we do the backup.</span> |
| <span class="source-line-no">145</span><span id="line-145"> backupManager.writeBackupStartCode(0L);</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"> // We roll log here before we do the snapshot. It is possible there is duplicate data</span> |
| <span class="source-line-no">148</span><span id="line-148"> // in the log that is already in the snapshot. But if we do it after the snapshot, we</span> |
| <span class="source-line-no">149</span><span id="line-149"> // could have data loss.</span> |
| <span class="source-line-no">150</span><span id="line-150"> // A better approach is to do the roll log on each RS in the same global procedure as</span> |
| <span class="source-line-no">151</span><span id="line-151"> // the snapshot.</span> |
| <span class="source-line-no">152</span><span id="line-152"> LOG.info("Execute roll log procedure for full backup ...");</span> |
| <span class="source-line-no">153</span><span id="line-153"></span> |
| <span class="source-line-no">154</span><span id="line-154"> // Gather the bulk loads being tracked by the system, which can be deleted (since their data</span> |
| <span class="source-line-no">155</span><span id="line-155"> // will be part of the snapshot being taken). We gather this list before taking the actual</span> |
| <span class="source-line-no">156</span><span id="line-156"> // snapshots for the same reason as the log rolls.</span> |
| <span class="source-line-no">157</span><span id="line-157"> List<BulkLoad> bulkLoadsToDelete = backupManager.readBulkloadRows(tableList);</span> |
| <span class="source-line-no">158</span><span id="line-158"></span> |
| <span class="source-line-no">159</span><span id="line-159"> BackupUtils.logRoll(conn, backupInfo.getBackupRootDir(), conf);</span> |
| <span class="source-line-no">160</span><span id="line-160"></span> |
| <span class="source-line-no">161</span><span id="line-161"> newTimestamps = backupManager.readRegionServerLastLogRollResult();</span> |
| <span class="source-line-no">162</span><span id="line-162"></span> |
| <span class="source-line-no">163</span><span id="line-163"> // SNAPSHOT_TABLES:</span> |
| <span class="source-line-no">164</span><span id="line-164"> backupInfo.setPhase(BackupPhase.SNAPSHOT);</span> |
| <span class="source-line-no">165</span><span id="line-165"> for (TableName tableName : tableList) {</span> |
| <span class="source-line-no">166</span><span id="line-166"> String snapshotName = "snapshot_" + Long.toString(EnvironmentEdgeManager.currentTime())</span> |
| <span class="source-line-no">167</span><span id="line-167"> + "_" + tableName.getNamespaceAsString() + "_" + tableName.getQualifierAsString();</span> |
| <span class="source-line-no">168</span><span id="line-168"></span> |
| <span class="source-line-no">169</span><span id="line-169"> snapshotTable(admin, tableName, snapshotName);</span> |
| <span class="source-line-no">170</span><span id="line-170"> backupInfo.setSnapshotName(tableName, snapshotName);</span> |
| <span class="source-line-no">171</span><span id="line-171"> }</span> |
| <span class="source-line-no">172</span><span id="line-172"></span> |
| <span class="source-line-no">173</span><span id="line-173"> // SNAPSHOT_COPY:</span> |
| <span class="source-line-no">174</span><span id="line-174"> // do snapshot copy</span> |
| <span class="source-line-no">175</span><span id="line-175"> LOG.debug("snapshot copy for " + backupId);</span> |
| <span class="source-line-no">176</span><span id="line-176"> snapshotCopy(backupInfo);</span> |
| <span class="source-line-no">177</span><span id="line-177"> // Updates incremental backup table set</span> |
| <span class="source-line-no">178</span><span id="line-178"> backupManager.addIncrementalBackupTableSet(backupInfo.getTables());</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> // BACKUP_COMPLETE:</span> |
| <span class="source-line-no">181</span><span id="line-181"> // set overall backup status: complete. Here we make sure to complete the backup.</span> |
| <span class="source-line-no">182</span><span id="line-182"> // After this checkpoint, even if entering cancel process, will let the backup finished</span> |
| <span class="source-line-no">183</span><span id="line-183"> backupInfo.setState(BackupState.COMPLETE);</span> |
| <span class="source-line-no">184</span><span id="line-184"> // The table list in backupInfo is good for both full backup and incremental backup.</span> |
| <span class="source-line-no">185</span><span id="line-185"> // For incremental backup, it contains the incremental backup table set.</span> |
| <span class="source-line-no">186</span><span id="line-186"> backupManager.writeRegionServerLogTimestamp(backupInfo.getTables(), newTimestamps);</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> Map<TableName, Map<String, Long>> newTableSetTimestampMap =</span> |
| <span class="source-line-no">189</span><span id="line-189"> backupManager.readLogTimestampMap();</span> |
| <span class="source-line-no">190</span><span id="line-190"></span> |
| <span class="source-line-no">191</span><span id="line-191"> backupInfo.setTableSetTimestampMap(newTableSetTimestampMap);</span> |
| <span class="source-line-no">192</span><span id="line-192"> Long newStartCode =</span> |
| <span class="source-line-no">193</span><span id="line-193"> BackupUtils.getMinValue(BackupUtils.getRSLogTimestampMins(newTableSetTimestampMap));</span> |
| <span class="source-line-no">194</span><span id="line-194"> backupManager.writeBackupStartCode(newStartCode);</span> |
| <span class="source-line-no">195</span><span id="line-195"></span> |
| <span class="source-line-no">196</span><span id="line-196"> backupManager</span> |
| <span class="source-line-no">197</span><span id="line-197"> .deleteBulkLoadedRows(bulkLoadsToDelete.stream().map(BulkLoad::getRowKey).toList());</span> |
| <span class="source-line-no">198</span><span id="line-198"></span> |
| <span class="source-line-no">199</span><span id="line-199"> // backup complete</span> |
| <span class="source-line-no">200</span><span id="line-200"> completeBackup(conn, backupInfo, BackupType.FULL, conf);</span> |
| <span class="source-line-no">201</span><span id="line-201"> } catch (Exception e) {</span> |
| <span class="source-line-no">202</span><span id="line-202"> failBackup(conn, backupInfo, backupManager, e, "Unexpected BackupException : ",</span> |
| <span class="source-line-no">203</span><span id="line-203"> BackupType.FULL, conf);</span> |
| <span class="source-line-no">204</span><span id="line-204"> throw new IOException(e);</span> |
| <span class="source-line-no">205</span><span id="line-205"> }</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"></span> |
| <span class="source-line-no">208</span><span id="line-208"> protected void snapshotTable(Admin admin, TableName tableName, String snapshotName)</span> |
| <span class="source-line-no">209</span><span id="line-209"> throws IOException {</span> |
| <span class="source-line-no">210</span><span id="line-210"> int maxAttempts = conf.getInt(BACKUP_MAX_ATTEMPTS_KEY, DEFAULT_BACKUP_MAX_ATTEMPTS);</span> |
| <span class="source-line-no">211</span><span id="line-211"> int pause = conf.getInt(BACKUP_ATTEMPTS_PAUSE_MS_KEY, DEFAULT_BACKUP_ATTEMPTS_PAUSE_MS);</span> |
| <span class="source-line-no">212</span><span id="line-212"> int attempts = 0;</span> |
| <span class="source-line-no">213</span><span id="line-213"></span> |
| <span class="source-line-no">214</span><span id="line-214"> while (attempts++ < maxAttempts) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> try {</span> |
| <span class="source-line-no">216</span><span id="line-216"> admin.snapshot(snapshotName, tableName);</span> |
| <span class="source-line-no">217</span><span id="line-217"> return;</span> |
| <span class="source-line-no">218</span><span id="line-218"> } catch (IOException ee) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> LOG.warn("Snapshot attempt " + attempts + " failed for table " + tableName</span> |
| <span class="source-line-no">220</span><span id="line-220"> + ", sleeping for " + pause + "ms", ee);</span> |
| <span class="source-line-no">221</span><span id="line-221"> if (attempts < maxAttempts) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> try {</span> |
| <span class="source-line-no">223</span><span id="line-223"> Thread.sleep(pause);</span> |
| <span class="source-line-no">224</span><span id="line-224"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">225</span><span id="line-225"> Thread.currentThread().interrupt();</span> |
| <span class="source-line-no">226</span><span id="line-226"> break;</span> |
| <span class="source-line-no">227</span><span id="line-227"> }</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> }</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"> throw new IOException("Failed to snapshot table " + tableName);</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
