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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 java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.util.ArrayList;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.HashMap;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.List;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Map;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.fs.FileStatus;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.fs.PathFilter;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.backup.master.LogRollMasterProcedureManager;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.backup.util.BackupUtils;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.client.Admin;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.util.CommonFSUtils;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.slf4j.Logger;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43">/**</span> |
| <span class="source-line-no">044</span><span id="line-44"> * After a full backup was created, the incremental backup will only store the changes made after</span> |
| <span class="source-line-no">045</span><span id="line-45"> * the last full or incremental backup. Creating the backup copies the logfiles in .logs and</span> |
| <span class="source-line-no">046</span><span id="line-46"> * .oldlogs since the last backup timestamp.</span> |
| <span class="source-line-no">047</span><span id="line-47"> */</span> |
| <span class="source-line-no">048</span><span id="line-48">@InterfaceAudience.Private</span> |
| <span class="source-line-no">049</span><span id="line-49">public class IncrementalBackupManager extends BackupManager {</span> |
| <span class="source-line-no">050</span><span id="line-50"> public static final Logger LOG = LoggerFactory.getLogger(IncrementalBackupManager.class);</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> public IncrementalBackupManager(Connection conn, Configuration conf) throws IOException {</span> |
| <span class="source-line-no">053</span><span id="line-53"> super(conn, conf);</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"> /**</span> |
| <span class="source-line-no">057</span><span id="line-57"> * Obtain the list of logs that need to be copied out for this incremental backup. The list is set</span> |
| <span class="source-line-no">058</span><span id="line-58"> * in BackupInfo.</span> |
| <span class="source-line-no">059</span><span id="line-59"> * @return The new HashMap of RS log time stamps after the log roll for this incremental backup.</span> |
| <span class="source-line-no">060</span><span id="line-60"> * @throws IOException exception</span> |
| <span class="source-line-no">061</span><span id="line-61"> */</span> |
| <span class="source-line-no">062</span><span id="line-62"> public Map<String, Long> getIncrBackupLogFileMap() throws IOException {</span> |
| <span class="source-line-no">063</span><span id="line-63"> List<String> logList;</span> |
| <span class="source-line-no">064</span><span id="line-64"> Map<String, Long> newTimestamps;</span> |
| <span class="source-line-no">065</span><span id="line-65"> Map<String, Long> previousTimestampMins;</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> String savedStartCode = readBackupStartCode();</span> |
| <span class="source-line-no">068</span><span id="line-68"></span> |
| <span class="source-line-no">069</span><span id="line-69"> // key: tableName</span> |
| <span class="source-line-no">070</span><span id="line-70"> // value: <RegionServer,PreviousTimeStamp></span> |
| <span class="source-line-no">071</span><span id="line-71"> Map<TableName, Map<String, Long>> previousTimestampMap = readLogTimestampMap();</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73"> previousTimestampMins = BackupUtils.getRSLogTimestampMins(previousTimestampMap);</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">076</span><span id="line-76"> LOG.debug("StartCode " + savedStartCode + "for backupID " + backupInfo.getBackupId());</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"> // get all new log files from .logs and .oldlogs after last TS and before new timestamp</span> |
| <span class="source-line-no">079</span><span id="line-79"> if (</span> |
| <span class="source-line-no">080</span><span id="line-80"> savedStartCode == null || previousTimestampMins == null || previousTimestampMins.isEmpty()</span> |
| <span class="source-line-no">081</span><span id="line-81"> ) {</span> |
| <span class="source-line-no">082</span><span id="line-82"> throw new IOException("Cannot read any previous back up timestamps from backup system table. "</span> |
| <span class="source-line-no">083</span><span id="line-83"> + "In order to create an incremental backup, at least one full backup is needed.");</span> |
| <span class="source-line-no">084</span><span id="line-84"> }</span> |
| <span class="source-line-no">085</span><span id="line-85"></span> |
| <span class="source-line-no">086</span><span id="line-86"> LOG.info("Execute roll log procedure for incremental backup ...");</span> |
| <span class="source-line-no">087</span><span id="line-87"> HashMap<String, String> props = new HashMap<>();</span> |
| <span class="source-line-no">088</span><span id="line-88"> props.put("backupRoot", backupInfo.getBackupRootDir());</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> try (Admin admin = conn.getAdmin()) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> admin.execProcedure(LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_SIGNATURE,</span> |
| <span class="source-line-no">092</span><span id="line-92"> LogRollMasterProcedureManager.ROLLLOG_PROCEDURE_NAME, props);</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94"> newTimestamps = readRegionServerLastLogRollResult();</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> logList = getLogFilesForNewBackup(previousTimestampMins, newTimestamps, conf, savedStartCode);</span> |
| <span class="source-line-no">097</span><span id="line-97"> logList = excludeProcV2WALs(logList);</span> |
| <span class="source-line-no">098</span><span id="line-98"> backupInfo.setIncrBackupFileList(logList);</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> return newTimestamps;</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"> private List<String> excludeProcV2WALs(List<String> logList) {</span> |
| <span class="source-line-no">104</span><span id="line-104"> List<String> list = new ArrayList<>();</span> |
| <span class="source-line-no">105</span><span id="line-105"> for (int i = 0; i < logList.size(); i++) {</span> |
| <span class="source-line-no">106</span><span id="line-106"> Path p = new Path(logList.get(i));</span> |
| <span class="source-line-no">107</span><span id="line-107"> String name = p.getName();</span> |
| <span class="source-line-no">108</span><span id="line-108"></span> |
| <span class="source-line-no">109</span><span id="line-109"> if (name.startsWith(WALProcedureStore.LOG_PREFIX)) {</span> |
| <span class="source-line-no">110</span><span id="line-110"> continue;</span> |
| <span class="source-line-no">111</span><span id="line-111"> }</span> |
| <span class="source-line-no">112</span><span id="line-112"></span> |
| <span class="source-line-no">113</span><span id="line-113"> list.add(logList.get(i));</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"> return list;</span> |
| <span class="source-line-no">116</span><span id="line-116"> }</span> |
| <span class="source-line-no">117</span><span id="line-117"></span> |
| <span class="source-line-no">118</span><span id="line-118"> /**</span> |
| <span class="source-line-no">119</span><span id="line-119"> * For each region server: get all log files newer than the last timestamps but not newer than the</span> |
| <span class="source-line-no">120</span><span id="line-120"> * newest timestamps.</span> |
| <span class="source-line-no">121</span><span id="line-121"> * @param olderTimestamps the timestamp for each region server of the last backup.</span> |
| <span class="source-line-no">122</span><span id="line-122"> * @param newestTimestamps the timestamp for each region server that the backup should lead to.</span> |
| <span class="source-line-no">123</span><span id="line-123"> * @param conf the Hadoop and Hbase configuration</span> |
| <span class="source-line-no">124</span><span id="line-124"> * @param savedStartCode the startcode (timestamp) of last successful backup.</span> |
| <span class="source-line-no">125</span><span id="line-125"> * @return a list of log files to be backed up</span> |
| <span class="source-line-no">126</span><span id="line-126"> * @throws IOException exception</span> |
| <span class="source-line-no">127</span><span id="line-127"> */</span> |
| <span class="source-line-no">128</span><span id="line-128"> private List<String> getLogFilesForNewBackup(Map<String, Long> olderTimestamps,</span> |
| <span class="source-line-no">129</span><span id="line-129"> Map<String, Long> newestTimestamps, Configuration conf, String savedStartCode)</span> |
| <span class="source-line-no">130</span><span id="line-130"> throws IOException {</span> |
| <span class="source-line-no">131</span><span id="line-131"> LOG.debug("In getLogFilesForNewBackup()\n" + "olderTimestamps: " + olderTimestamps</span> |
| <span class="source-line-no">132</span><span id="line-132"> + "\n newestTimestamps: " + newestTimestamps);</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> Path walRootDir = CommonFSUtils.getWALRootDir(conf);</span> |
| <span class="source-line-no">135</span><span id="line-135"> Path logDir = new Path(walRootDir, HConstants.HREGION_LOGDIR_NAME);</span> |
| <span class="source-line-no">136</span><span id="line-136"> Path oldLogDir = new Path(walRootDir, HConstants.HREGION_OLDLOGDIR_NAME);</span> |
| <span class="source-line-no">137</span><span id="line-137"> FileSystem fs = walRootDir.getFileSystem(conf);</span> |
| <span class="source-line-no">138</span><span id="line-138"> NewestLogFilter pathFilter = new NewestLogFilter();</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> List<String> resultLogFiles = new ArrayList<>();</span> |
| <span class="source-line-no">141</span><span id="line-141"> List<String> newestLogs = new ArrayList<>();</span> |
| <span class="source-line-no">142</span><span id="line-142"></span> |
| <span class="source-line-no">143</span><span id="line-143"> /*</span> |
| <span class="source-line-no">144</span><span id="line-144"> * The old region servers and timestamps info we kept in backup system table may be out of sync</span> |
| <span class="source-line-no">145</span><span id="line-145"> * if new region server is added or existing one lost. We'll deal with it here when processing</span> |
| <span class="source-line-no">146</span><span id="line-146"> * the logs. If data in backup system table has more hosts, just ignore it. If the .logs</span> |
| <span class="source-line-no">147</span><span id="line-147"> * directory includes more hosts, the additional hosts will not have old timestamps to compare</span> |
| <span class="source-line-no">148</span><span id="line-148"> * with. We'll just use all the logs in that directory. We always write up-to-date region server</span> |
| <span class="source-line-no">149</span><span id="line-149"> * and timestamp info to backup system table at the end of successful backup.</span> |
| <span class="source-line-no">150</span><span id="line-150"> */</span> |
| <span class="source-line-no">151</span><span id="line-151"> FileStatus[] rss;</span> |
| <span class="source-line-no">152</span><span id="line-152"> Path p;</span> |
| <span class="source-line-no">153</span><span id="line-153"> String host;</span> |
| <span class="source-line-no">154</span><span id="line-154"> Long oldTimeStamp;</span> |
| <span class="source-line-no">155</span><span id="line-155"> String currentLogFile;</span> |
| <span class="source-line-no">156</span><span id="line-156"> long currentLogTS;</span> |
| <span class="source-line-no">157</span><span id="line-157"></span> |
| <span class="source-line-no">158</span><span id="line-158"> // Get the files in .logs.</span> |
| <span class="source-line-no">159</span><span id="line-159"> rss = fs.listStatus(logDir);</span> |
| <span class="source-line-no">160</span><span id="line-160"> for (FileStatus rs : rss) {</span> |
| <span class="source-line-no">161</span><span id="line-161"> p = rs.getPath();</span> |
| <span class="source-line-no">162</span><span id="line-162"> host = BackupUtils.parseHostNameFromLogFile(p);</span> |
| <span class="source-line-no">163</span><span id="line-163"> if (host == null) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> continue;</span> |
| <span class="source-line-no">165</span><span id="line-165"> }</span> |
| <span class="source-line-no">166</span><span id="line-166"> FileStatus[] logs;</span> |
| <span class="source-line-no">167</span><span id="line-167"> oldTimeStamp = olderTimestamps.get(host);</span> |
| <span class="source-line-no">168</span><span id="line-168"> // It is possible that there is no old timestamp in backup system table for this host if</span> |
| <span class="source-line-no">169</span><span id="line-169"> // this region server is newly added after our last backup.</span> |
| <span class="source-line-no">170</span><span id="line-170"> if (oldTimeStamp == null) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> logs = fs.listStatus(p);</span> |
| <span class="source-line-no">172</span><span id="line-172"> } else {</span> |
| <span class="source-line-no">173</span><span id="line-173"> pathFilter.setLastBackupTS(oldTimeStamp);</span> |
| <span class="source-line-no">174</span><span id="line-174"> logs = fs.listStatus(p, pathFilter);</span> |
| <span class="source-line-no">175</span><span id="line-175"> }</span> |
| <span class="source-line-no">176</span><span id="line-176"> for (FileStatus log : logs) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> LOG.debug("currentLogFile: " + log.getPath().toString());</span> |
| <span class="source-line-no">178</span><span id="line-178"> if (AbstractFSWALProvider.isMetaFile(log.getPath())) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> LOG.debug("Skip hbase:meta log file: " + log.getPath().getName());</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> continue;</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> currentLogFile = log.getPath().toString();</span> |
| <span class="source-line-no">185</span><span id="line-185"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">186</span><span id="line-186"> currentLogTS = BackupUtils.getCreationTime(log.getPath());</span> |
| <span class="source-line-no">187</span><span id="line-187"></span> |
| <span class="source-line-no">188</span><span id="line-188"> // If newestTimestamps.get(host) is null, means that</span> |
| <span class="source-line-no">189</span><span id="line-189"> // either RS (host) has been restarted recently with different port number</span> |
| <span class="source-line-no">190</span><span id="line-190"> // or RS is down (was decommisioned). In any case, we treat this</span> |
| <span class="source-line-no">191</span><span id="line-191"> // log file as eligible for inclusion into incremental backup log list</span> |
| <span class="source-line-no">192</span><span id="line-192"> Long ts = newestTimestamps.get(host);</span> |
| <span class="source-line-no">193</span><span id="line-193"> if (ts == null) {</span> |
| <span class="source-line-no">194</span><span id="line-194"> LOG.warn("ORPHAN log found: " + log + " host=" + host);</span> |
| <span class="source-line-no">195</span><span id="line-195"> LOG.debug("Known hosts (from newestTimestamps):");</span> |
| <span class="source-line-no">196</span><span id="line-196"> for (String s : newestTimestamps.keySet()) {</span> |
| <span class="source-line-no">197</span><span id="line-197"> LOG.debug(s);</span> |
| <span class="source-line-no">198</span><span id="line-198"> }</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200"> if (ts == null || currentLogTS > ts) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> newestLogs.add(currentLogFile);</span> |
| <span class="source-line-no">202</span><span id="line-202"> }</span> |
| <span class="source-line-no">203</span><span id="line-203"> }</span> |
| <span class="source-line-no">204</span><span id="line-204"> }</span> |
| <span class="source-line-no">205</span><span id="line-205"></span> |
| <span class="source-line-no">206</span><span id="line-206"> // Include the .oldlogs files too.</span> |
| <span class="source-line-no">207</span><span id="line-207"> FileStatus[] oldlogs = fs.listStatus(oldLogDir);</span> |
| <span class="source-line-no">208</span><span id="line-208"> for (FileStatus oldlog : oldlogs) {</span> |
| <span class="source-line-no">209</span><span id="line-209"> p = oldlog.getPath();</span> |
| <span class="source-line-no">210</span><span id="line-210"> currentLogFile = p.toString();</span> |
| <span class="source-line-no">211</span><span id="line-211"> if (AbstractFSWALProvider.isMetaFile(p)) {</span> |
| <span class="source-line-no">212</span><span id="line-212"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> LOG.debug("Skip .meta log file: " + currentLogFile);</span> |
| <span class="source-line-no">214</span><span id="line-214"> }</span> |
| <span class="source-line-no">215</span><span id="line-215"> continue;</span> |
| <span class="source-line-no">216</span><span id="line-216"> }</span> |
| <span class="source-line-no">217</span><span id="line-217"> host = BackupUtils.parseHostFromOldLog(p);</span> |
| <span class="source-line-no">218</span><span id="line-218"> if (host == null) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> continue;</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> currentLogTS = BackupUtils.getCreationTime(p);</span> |
| <span class="source-line-no">222</span><span id="line-222"> oldTimeStamp = olderTimestamps.get(host);</span> |
| <span class="source-line-no">223</span><span id="line-223"> /*</span> |
| <span class="source-line-no">224</span><span id="line-224"> * It is possible that there is no old timestamp in backup system table for this host. At the</span> |
| <span class="source-line-no">225</span><span id="line-225"> * time of our last backup operation, this rs did not exist. The reason can be one of the two:</span> |
| <span class="source-line-no">226</span><span id="line-226"> * 1. The rs already left/crashed. Its logs were moved to .oldlogs. 2. The rs was added after</span> |
| <span class="source-line-no">227</span><span id="line-227"> * our last backup.</span> |
| <span class="source-line-no">228</span><span id="line-228"> */</span> |
| <span class="source-line-no">229</span><span id="line-229"> if (oldTimeStamp == null) {</span> |
| <span class="source-line-no">230</span><span id="line-230"> if (currentLogTS < Long.parseLong(savedStartCode)) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> // This log file is really old, its region server was before our last backup.</span> |
| <span class="source-line-no">232</span><span id="line-232"> continue;</span> |
| <span class="source-line-no">233</span><span id="line-233"> } else {</span> |
| <span class="source-line-no">234</span><span id="line-234"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">235</span><span id="line-235"> }</span> |
| <span class="source-line-no">236</span><span id="line-236"> } else if (currentLogTS > oldTimeStamp) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"></span> |
| <span class="source-line-no">240</span><span id="line-240"> // It is possible that a host in .oldlogs is an obsolete region server</span> |
| <span class="source-line-no">241</span><span id="line-241"> // so newestTimestamps.get(host) here can be null.</span> |
| <span class="source-line-no">242</span><span id="line-242"> // Even if these logs belong to a obsolete region server, we still need</span> |
| <span class="source-line-no">243</span><span id="line-243"> // to include they to avoid loss of edits for backup.</span> |
| <span class="source-line-no">244</span><span id="line-244"> Long newTimestamp = newestTimestamps.get(host);</span> |
| <span class="source-line-no">245</span><span id="line-245"> if (newTimestamp == null || currentLogTS > newTimestamp) {</span> |
| <span class="source-line-no">246</span><span id="line-246"> newestLogs.add(currentLogFile);</span> |
| <span class="source-line-no">247</span><span id="line-247"> }</span> |
| <span class="source-line-no">248</span><span id="line-248"> }</span> |
| <span class="source-line-no">249</span><span id="line-249"> // remove newest log per host because they are still in use</span> |
| <span class="source-line-no">250</span><span id="line-250"> resultLogFiles.removeAll(newestLogs);</span> |
| <span class="source-line-no">251</span><span id="line-251"> return resultLogFiles;</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"></span> |
| <span class="source-line-no">254</span><span id="line-254"> static class NewestLogFilter implements PathFilter {</span> |
| <span class="source-line-no">255</span><span id="line-255"> private Long lastBackupTS = 0L;</span> |
| <span class="source-line-no">256</span><span id="line-256"></span> |
| <span class="source-line-no">257</span><span id="line-257"> public NewestLogFilter() {</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"></span> |
| <span class="source-line-no">260</span><span id="line-260"> protected void setLastBackupTS(Long ts) {</span> |
| <span class="source-line-no">261</span><span id="line-261"> this.lastBackupTS = ts;</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"></span> |
| <span class="source-line-no">264</span><span id="line-264"> @Override</span> |
| <span class="source-line-no">265</span><span id="line-265"> public boolean accept(Path path) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> // skip meta table log -- ts.meta file</span> |
| <span class="source-line-no">267</span><span id="line-267"> if (AbstractFSWALProvider.isMetaFile(path)) {</span> |
| <span class="source-line-no">268</span><span id="line-268"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">269</span><span id="line-269"> LOG.debug("Skip .meta log file: " + path.getName());</span> |
| <span class="source-line-no">270</span><span id="line-270"> }</span> |
| <span class="source-line-no">271</span><span id="line-271"> return false;</span> |
| <span class="source-line-no">272</span><span id="line-272"> }</span> |
| <span class="source-line-no">273</span><span id="line-273"> long timestamp;</span> |
| <span class="source-line-no">274</span><span id="line-274"> try {</span> |
| <span class="source-line-no">275</span><span id="line-275"> timestamp = BackupUtils.getCreationTime(path);</span> |
| <span class="source-line-no">276</span><span id="line-276"> return timestamp > lastBackupTS;</span> |
| <span class="source-line-no">277</span><span id="line-277"> } catch (Exception e) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> LOG.warn("Cannot read timestamp of log file " + path);</span> |
| <span class="source-line-no">279</span><span id="line-279"> return false;</span> |
| <span class="source-line-no">280</span><span id="line-280"> }</span> |
| <span class="source-line-no">281</span><span id="line-281"> }</span> |
| <span class="source-line-no">282</span><span id="line-282"> }</span> |
| <span class="source-line-no">283</span><span id="line-283">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
