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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.List;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.Map;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.FileStatus;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.fs.PathFilter;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.HConstants;</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.util.BackupUtils;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.util.CommonFSUtils;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">/**</span> |
| <span class="source-line-no">041</span><span id="line-41"> * After a full backup was created, the incremental backup will only store the changes made after</span> |
| <span class="source-line-no">042</span><span id="line-42"> * the last full or incremental backup. Creating the backup copies the logfiles in .logs and</span> |
| <span class="source-line-no">043</span><span id="line-43"> * .oldlogs since the last backup timestamp.</span> |
| <span class="source-line-no">044</span><span id="line-44"> */</span> |
| <span class="source-line-no">045</span><span id="line-45">@InterfaceAudience.Private</span> |
| <span class="source-line-no">046</span><span id="line-46">public class IncrementalBackupManager extends BackupManager {</span> |
| <span class="source-line-no">047</span><span id="line-47"> public static final Logger LOG = LoggerFactory.getLogger(IncrementalBackupManager.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"> public IncrementalBackupManager(Connection conn, Configuration conf) throws IOException {</span> |
| <span class="source-line-no">050</span><span id="line-50"> super(conn, conf);</span> |
| <span class="source-line-no">051</span><span id="line-51"> }</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> /**</span> |
| <span class="source-line-no">054</span><span id="line-54"> * 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">055</span><span id="line-55"> * in BackupInfo.</span> |
| <span class="source-line-no">056</span><span id="line-56"> * @return The new HashMap of RS log time stamps after the log roll for this incremental backup.</span> |
| <span class="source-line-no">057</span><span id="line-57"> * @throws IOException exception</span> |
| <span class="source-line-no">058</span><span id="line-58"> */</span> |
| <span class="source-line-no">059</span><span id="line-59"> public Map<String, Long> getIncrBackupLogFileMap() throws IOException {</span> |
| <span class="source-line-no">060</span><span id="line-60"> List<String> logList;</span> |
| <span class="source-line-no">061</span><span id="line-61"> Map<String, Long> newTimestamps;</span> |
| <span class="source-line-no">062</span><span id="line-62"> Map<String, Long> previousTimestampMins;</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> String savedStartCode = readBackupStartCode();</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> // key: tableName</span> |
| <span class="source-line-no">067</span><span id="line-67"> // value: <RegionServer,PreviousTimeStamp></span> |
| <span class="source-line-no">068</span><span id="line-68"> Map<TableName, Map<String, Long>> previousTimestampMap = readLogTimestampMap();</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> previousTimestampMins = BackupUtils.getRSLogTimestampMins(previousTimestampMap);</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">073</span><span id="line-73"> LOG.debug("StartCode " + savedStartCode + "for backupID " + backupInfo.getBackupId());</span> |
| <span class="source-line-no">074</span><span id="line-74"> }</span> |
| <span class="source-line-no">075</span><span id="line-75"> // get all new log files from .logs and .oldlogs after last TS and before new timestamp</span> |
| <span class="source-line-no">076</span><span id="line-76"> if (</span> |
| <span class="source-line-no">077</span><span id="line-77"> savedStartCode == null || previousTimestampMins == null || previousTimestampMins.isEmpty()</span> |
| <span class="source-line-no">078</span><span id="line-78"> ) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> throw new IOException("Cannot read any previous back up timestamps from backup system table. "</span> |
| <span class="source-line-no">080</span><span id="line-80"> + "In order to create an incremental backup, at least one full backup is needed.");</span> |
| <span class="source-line-no">081</span><span id="line-81"> }</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> LOG.info("Execute roll log procedure for incremental backup ...");</span> |
| <span class="source-line-no">084</span><span id="line-84"> BackupUtils.logRoll(conn, backupInfo.getBackupRootDir(), conf);</span> |
| <span class="source-line-no">085</span><span id="line-85"></span> |
| <span class="source-line-no">086</span><span id="line-86"> newTimestamps = readRegionServerLastLogRollResult();</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> logList = getLogFilesForNewBackup(previousTimestampMins, newTimestamps, conf, savedStartCode);</span> |
| <span class="source-line-no">089</span><span id="line-89"> logList = excludeProcV2WALs(logList);</span> |
| <span class="source-line-no">090</span><span id="line-90"> backupInfo.setIncrBackupFileList(logList);</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> return newTimestamps;</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"> private List<String> excludeProcV2WALs(List<String> logList) {</span> |
| <span class="source-line-no">096</span><span id="line-96"> List<String> list = new ArrayList<>();</span> |
| <span class="source-line-no">097</span><span id="line-97"> for (int i = 0; i < logList.size(); i++) {</span> |
| <span class="source-line-no">098</span><span id="line-98"> Path p = new Path(logList.get(i));</span> |
| <span class="source-line-no">099</span><span id="line-99"> String name = p.getName();</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> if (name.startsWith(WALProcedureStore.LOG_PREFIX)) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> continue;</span> |
| <span class="source-line-no">103</span><span id="line-103"> }</span> |
| <span class="source-line-no">104</span><span id="line-104"></span> |
| <span class="source-line-no">105</span><span id="line-105"> list.add(logList.get(i));</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> return list;</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"> /**</span> |
| <span class="source-line-no">111</span><span id="line-111"> * For each region server: get all log files newer than the last timestamps but not newer than the</span> |
| <span class="source-line-no">112</span><span id="line-112"> * newest timestamps.</span> |
| <span class="source-line-no">113</span><span id="line-113"> * @param olderTimestamps the timestamp for each region server of the last backup.</span> |
| <span class="source-line-no">114</span><span id="line-114"> * @param newestTimestamps the timestamp for each region server that the backup should lead to.</span> |
| <span class="source-line-no">115</span><span id="line-115"> * @param conf the Hadoop and Hbase configuration</span> |
| <span class="source-line-no">116</span><span id="line-116"> * @param savedStartCode the startcode (timestamp) of last successful backup.</span> |
| <span class="source-line-no">117</span><span id="line-117"> * @return a list of log files to be backed up</span> |
| <span class="source-line-no">118</span><span id="line-118"> * @throws IOException exception</span> |
| <span class="source-line-no">119</span><span id="line-119"> */</span> |
| <span class="source-line-no">120</span><span id="line-120"> private List<String> getLogFilesForNewBackup(Map<String, Long> olderTimestamps,</span> |
| <span class="source-line-no">121</span><span id="line-121"> Map<String, Long> newestTimestamps, Configuration conf, String savedStartCode)</span> |
| <span class="source-line-no">122</span><span id="line-122"> throws IOException {</span> |
| <span class="source-line-no">123</span><span id="line-123"> LOG.debug("In getLogFilesForNewBackup()\n" + "olderTimestamps: " + olderTimestamps</span> |
| <span class="source-line-no">124</span><span id="line-124"> + "\n newestTimestamps: " + newestTimestamps);</span> |
| <span class="source-line-no">125</span><span id="line-125"></span> |
| <span class="source-line-no">126</span><span id="line-126"> Path walRootDir = CommonFSUtils.getWALRootDir(conf);</span> |
| <span class="source-line-no">127</span><span id="line-127"> Path logDir = new Path(walRootDir, HConstants.HREGION_LOGDIR_NAME);</span> |
| <span class="source-line-no">128</span><span id="line-128"> Path oldLogDir = new Path(walRootDir, HConstants.HREGION_OLDLOGDIR_NAME);</span> |
| <span class="source-line-no">129</span><span id="line-129"> FileSystem fs = walRootDir.getFileSystem(conf);</span> |
| <span class="source-line-no">130</span><span id="line-130"> NewestLogFilter pathFilter = new NewestLogFilter();</span> |
| <span class="source-line-no">131</span><span id="line-131"></span> |
| <span class="source-line-no">132</span><span id="line-132"> List<String> resultLogFiles = new ArrayList<>();</span> |
| <span class="source-line-no">133</span><span id="line-133"> List<String> newestLogs = new ArrayList<>();</span> |
| <span class="source-line-no">134</span><span id="line-134"></span> |
| <span class="source-line-no">135</span><span id="line-135"> /*</span> |
| <span class="source-line-no">136</span><span id="line-136"> * The old region servers and timestamps info we kept in backup system table may be out of sync</span> |
| <span class="source-line-no">137</span><span id="line-137"> * if new region server is added or existing one lost. We'll deal with it here when processing</span> |
| <span class="source-line-no">138</span><span id="line-138"> * the logs. If data in backup system table has more hosts, just ignore it. If the .logs</span> |
| <span class="source-line-no">139</span><span id="line-139"> * directory includes more hosts, the additional hosts will not have old timestamps to compare</span> |
| <span class="source-line-no">140</span><span id="line-140"> * 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">141</span><span id="line-141"> * and timestamp info to backup system table at the end of successful backup.</span> |
| <span class="source-line-no">142</span><span id="line-142"> */</span> |
| <span class="source-line-no">143</span><span id="line-143"> FileStatus[] rss;</span> |
| <span class="source-line-no">144</span><span id="line-144"> Path p;</span> |
| <span class="source-line-no">145</span><span id="line-145"> String host;</span> |
| <span class="source-line-no">146</span><span id="line-146"> Long oldTimeStamp;</span> |
| <span class="source-line-no">147</span><span id="line-147"> String currentLogFile;</span> |
| <span class="source-line-no">148</span><span id="line-148"> long currentLogTS;</span> |
| <span class="source-line-no">149</span><span id="line-149"></span> |
| <span class="source-line-no">150</span><span id="line-150"> // Get the files in .logs.</span> |
| <span class="source-line-no">151</span><span id="line-151"> rss = fs.listStatus(logDir);</span> |
| <span class="source-line-no">152</span><span id="line-152"> for (FileStatus rs : rss) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> p = rs.getPath();</span> |
| <span class="source-line-no">154</span><span id="line-154"> host = BackupUtils.parseHostNameFromLogFile(p);</span> |
| <span class="source-line-no">155</span><span id="line-155"> if (host == null) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> continue;</span> |
| <span class="source-line-no">157</span><span id="line-157"> }</span> |
| <span class="source-line-no">158</span><span id="line-158"> FileStatus[] logs;</span> |
| <span class="source-line-no">159</span><span id="line-159"> oldTimeStamp = olderTimestamps.get(host);</span> |
| <span class="source-line-no">160</span><span id="line-160"> // It is possible that there is no old timestamp in backup system table for this host if</span> |
| <span class="source-line-no">161</span><span id="line-161"> // this region server is newly added after our last backup.</span> |
| <span class="source-line-no">162</span><span id="line-162"> if (oldTimeStamp == null) {</span> |
| <span class="source-line-no">163</span><span id="line-163"> logs = fs.listStatus(p);</span> |
| <span class="source-line-no">164</span><span id="line-164"> } else {</span> |
| <span class="source-line-no">165</span><span id="line-165"> pathFilter.setLastBackupTS(oldTimeStamp);</span> |
| <span class="source-line-no">166</span><span id="line-166"> logs = fs.listStatus(p, pathFilter);</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168"> for (FileStatus log : logs) {</span> |
| <span class="source-line-no">169</span><span id="line-169"> LOG.debug("currentLogFile: " + log.getPath().toString());</span> |
| <span class="source-line-no">170</span><span id="line-170"> if (AbstractFSWALProvider.isMetaFile(log.getPath())) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">172</span><span id="line-172"> LOG.debug("Skip hbase:meta log file: " + log.getPath().getName());</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"> continue;</span> |
| <span class="source-line-no">175</span><span id="line-175"> }</span> |
| <span class="source-line-no">176</span><span id="line-176"> currentLogFile = log.getPath().toString();</span> |
| <span class="source-line-no">177</span><span id="line-177"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">178</span><span id="line-178"> currentLogTS = BackupUtils.getCreationTime(log.getPath());</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> // If newestTimestamps.get(host) is null, means that</span> |
| <span class="source-line-no">181</span><span id="line-181"> // either RS (host) has been restarted recently with different port number</span> |
| <span class="source-line-no">182</span><span id="line-182"> // or RS is down (was decommisioned). In any case, we treat this</span> |
| <span class="source-line-no">183</span><span id="line-183"> // log file as eligible for inclusion into incremental backup log list</span> |
| <span class="source-line-no">184</span><span id="line-184"> Long ts = newestTimestamps.get(host);</span> |
| <span class="source-line-no">185</span><span id="line-185"> if (ts == null) {</span> |
| <span class="source-line-no">186</span><span id="line-186"> LOG.warn("ORPHAN log found: " + log + " host=" + host);</span> |
| <span class="source-line-no">187</span><span id="line-187"> LOG.debug("Known hosts (from newestTimestamps):");</span> |
| <span class="source-line-no">188</span><span id="line-188"> for (String s : newestTimestamps.keySet()) {</span> |
| <span class="source-line-no">189</span><span id="line-189"> LOG.debug(s);</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"> if (ts == null || currentLogTS > ts) {</span> |
| <span class="source-line-no">193</span><span id="line-193"> newestLogs.add(currentLogFile);</span> |
| <span class="source-line-no">194</span><span id="line-194"> }</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"> }</span> |
| <span class="source-line-no">197</span><span id="line-197"></span> |
| <span class="source-line-no">198</span><span id="line-198"> // Include the .oldlogs files too.</span> |
| <span class="source-line-no">199</span><span id="line-199"> FileStatus[] oldlogs = fs.listStatus(oldLogDir);</span> |
| <span class="source-line-no">200</span><span id="line-200"> for (FileStatus oldlog : oldlogs) {</span> |
| <span class="source-line-no">201</span><span id="line-201"> p = oldlog.getPath();</span> |
| <span class="source-line-no">202</span><span id="line-202"> currentLogFile = p.toString();</span> |
| <span class="source-line-no">203</span><span id="line-203"> if (AbstractFSWALProvider.isMetaFile(p)) {</span> |
| <span class="source-line-no">204</span><span id="line-204"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> LOG.debug("Skip .meta log file: " + currentLogFile);</span> |
| <span class="source-line-no">206</span><span id="line-206"> }</span> |
| <span class="source-line-no">207</span><span id="line-207"> continue;</span> |
| <span class="source-line-no">208</span><span id="line-208"> }</span> |
| <span class="source-line-no">209</span><span id="line-209"> host = BackupUtils.parseHostFromOldLog(p);</span> |
| <span class="source-line-no">210</span><span id="line-210"> if (host == null) {</span> |
| <span class="source-line-no">211</span><span id="line-211"> continue;</span> |
| <span class="source-line-no">212</span><span id="line-212"> }</span> |
| <span class="source-line-no">213</span><span id="line-213"> currentLogTS = BackupUtils.getCreationTime(p);</span> |
| <span class="source-line-no">214</span><span id="line-214"> oldTimeStamp = olderTimestamps.get(host);</span> |
| <span class="source-line-no">215</span><span id="line-215"> /*</span> |
| <span class="source-line-no">216</span><span id="line-216"> * It is possible that there is no old timestamp in backup system table for this host. At the</span> |
| <span class="source-line-no">217</span><span id="line-217"> * 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">218</span><span id="line-218"> * 1. The rs already left/crashed. Its logs were moved to .oldlogs. 2. The rs was added after</span> |
| <span class="source-line-no">219</span><span id="line-219"> * our last backup.</span> |
| <span class="source-line-no">220</span><span id="line-220"> */</span> |
| <span class="source-line-no">221</span><span id="line-221"> if (oldTimeStamp == null) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> if (currentLogTS < Long.parseLong(savedStartCode)) {</span> |
| <span class="source-line-no">223</span><span id="line-223"> // This log file is really old, its region server was before our last backup.</span> |
| <span class="source-line-no">224</span><span id="line-224"> continue;</span> |
| <span class="source-line-no">225</span><span id="line-225"> } else {</span> |
| <span class="source-line-no">226</span><span id="line-226"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">227</span><span id="line-227"> }</span> |
| <span class="source-line-no">228</span><span id="line-228"> } else if (currentLogTS > oldTimeStamp) {</span> |
| <span class="source-line-no">229</span><span id="line-229"> resultLogFiles.add(currentLogFile);</span> |
| <span class="source-line-no">230</span><span id="line-230"> }</span> |
| <span class="source-line-no">231</span><span id="line-231"></span> |
| <span class="source-line-no">232</span><span id="line-232"> // It is possible that a host in .oldlogs is an obsolete region server</span> |
| <span class="source-line-no">233</span><span id="line-233"> // so newestTimestamps.get(host) here can be null.</span> |
| <span class="source-line-no">234</span><span id="line-234"> // Even if these logs belong to a obsolete region server, we still need</span> |
| <span class="source-line-no">235</span><span id="line-235"> // to include they to avoid loss of edits for backup.</span> |
| <span class="source-line-no">236</span><span id="line-236"> Long newTimestamp = newestTimestamps.get(host);</span> |
| <span class="source-line-no">237</span><span id="line-237"> if (newTimestamp == null || currentLogTS > newTimestamp) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> newestLogs.add(currentLogFile);</span> |
| <span class="source-line-no">239</span><span id="line-239"> }</span> |
| <span class="source-line-no">240</span><span id="line-240"> }</span> |
| <span class="source-line-no">241</span><span id="line-241"> // remove newest log per host because they are still in use</span> |
| <span class="source-line-no">242</span><span id="line-242"> resultLogFiles.removeAll(newestLogs);</span> |
| <span class="source-line-no">243</span><span id="line-243"> return resultLogFiles;</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"></span> |
| <span class="source-line-no">246</span><span id="line-246"> static class NewestLogFilter implements PathFilter {</span> |
| <span class="source-line-no">247</span><span id="line-247"> private Long lastBackupTS = 0L;</span> |
| <span class="source-line-no">248</span><span id="line-248"></span> |
| <span class="source-line-no">249</span><span id="line-249"> public NewestLogFilter() {</span> |
| <span class="source-line-no">250</span><span id="line-250"> }</span> |
| <span class="source-line-no">251</span><span id="line-251"></span> |
| <span class="source-line-no">252</span><span id="line-252"> protected void setLastBackupTS(Long ts) {</span> |
| <span class="source-line-no">253</span><span id="line-253"> this.lastBackupTS = ts;</span> |
| <span class="source-line-no">254</span><span id="line-254"> }</span> |
| <span class="source-line-no">255</span><span id="line-255"></span> |
| <span class="source-line-no">256</span><span id="line-256"> @Override</span> |
| <span class="source-line-no">257</span><span id="line-257"> public boolean accept(Path path) {</span> |
| <span class="source-line-no">258</span><span id="line-258"> // skip meta table log -- ts.meta file</span> |
| <span class="source-line-no">259</span><span id="line-259"> if (AbstractFSWALProvider.isMetaFile(path)) {</span> |
| <span class="source-line-no">260</span><span id="line-260"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">261</span><span id="line-261"> LOG.debug("Skip .meta log file: " + path.getName());</span> |
| <span class="source-line-no">262</span><span id="line-262"> }</span> |
| <span class="source-line-no">263</span><span id="line-263"> return false;</span> |
| <span class="source-line-no">264</span><span id="line-264"> }</span> |
| <span class="source-line-no">265</span><span id="line-265"> long timestamp;</span> |
| <span class="source-line-no">266</span><span id="line-266"> try {</span> |
| <span class="source-line-no">267</span><span id="line-267"> timestamp = BackupUtils.getCreationTime(path);</span> |
| <span class="source-line-no">268</span><span id="line-268"> return timestamp > lastBackupTS;</span> |
| <span class="source-line-no">269</span><span id="line-269"> } catch (Exception e) {</span> |
| <span class="source-line-no">270</span><span id="line-270"> LOG.warn("Cannot read timestamp of log file " + path);</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"> }</span> |
| <span class="source-line-no">274</span><span id="line-274"> }</span> |
| <span class="source-line-no">275</span><span id="line-275">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
