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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.replication.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import com.google.errorprone.annotations.RestrictedApi;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.FileNotFoundException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.net.URLEncoder;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.nio.charset.StandardCharsets;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.ArrayList;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Collection;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Collections;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.HashMap;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Iterator;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.List;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.Map;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.NavigableSet;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.OptionalLong;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.PriorityQueue;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import java.util.Set;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import java.util.SortedSet;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import java.util.TreeSet;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import java.util.UUID;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import java.util.concurrent.ConcurrentMap;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import java.util.concurrent.TimeUnit;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import java.util.stream.Collectors;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.conf.Configuration;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.fs.FileSystem;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.fs.Path;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.HConstants;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.Server;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.ServerName;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.TableName;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.replication.ReplicationGroupOffset;<a name="line.56"></a> |
| <span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.replication.ReplicationOffsetUtil;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.replication.ReplicationPeer;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.replication.ReplicationPeerImpl;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.replication.ReplicationPeers;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.replication.ReplicationQueueData;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.replication.ReplicationQueueId;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.replication.ReplicationQueueStorage;<a name="line.64"></a> |
| <span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.replication.ReplicationUtils;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.replication.SyncReplicationState;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.wal.AbstractWALProvider;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.70"></a> |
| <span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.72"></a> |
| <span class="sourceLineNo">073</span>import org.apache.zookeeper.KeeperException;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span>import org.slf4j.Logger;<a name="line.74"></a> |
| <span class="sourceLineNo">075</span>import org.slf4j.LoggerFactory;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span>import org.apache.hbase.thirdparty.com.google.common.collect.Sets;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.79"></a> |
| <span class="sourceLineNo">080</span><a name="line.80"></a> |
| <span class="sourceLineNo">081</span>/**<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * This class is responsible to manage all the replication sources. There are two classes of<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * sources:<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * <ul><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * <li>Normal sources are persistent and one per peer cluster</li><a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * <li>Old sources are recovered from a failed region server and our only goal is to finish<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * replicating the WAL queue it had</li><a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * </ul><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * <p><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * When a region server dies, this class uses a watcher to get notified and it tries to grab a lock<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * in order to transfer all the queues in a local old source.<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * <p><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * Synchronization specification:<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * <ul><a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * <li>No need synchronized on {@link #sources}. {@link #sources} is a ConcurrentHashMap and there<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * is a Lock for peer id in {@link PeerProcedureHandlerImpl}. So there is no race for peer<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * operations.</li><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * <li>Need synchronized on {@link #walsById}. There are four methods which modify it,<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * {@link #addPeer(String)}, {@link #removePeer(String)},<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * {@link #cleanOldLogs(String, boolean, ReplicationSourceInterface)} and<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * {@link #postLogRoll(Path)}. {@link #walsById} is a ConcurrentHashMap and there is a Lock for peer<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> * id in {@link PeerProcedureHandlerImpl}. So there is no race between {@link #addPeer(String)} and<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> * {@link #removePeer(String)}. {@link #cleanOldLogs(String, boolean, ReplicationSourceInterface)}<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> * is called by {@link ReplicationSourceInterface}. So no race with {@link #addPeer(String)}.<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> * {@link #removePeer(String)} will terminate the {@link ReplicationSourceInterface} firstly, then<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * remove the wals from {@link #walsById}. So no race with {@link #removePeer(String)}. The only<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> * case need synchronized is {@link #cleanOldLogs(String, boolean, ReplicationSourceInterface)} and<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * {@link #postLogRoll(Path)}.</li><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * <li>No need synchronized on {@link #walsByIdRecoveredQueues}. There are three methods which<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * modify it, {@link #removePeer(String)} ,<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * {@link #cleanOldLogs(String, boolean, ReplicationSourceInterface)} and<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> * {@link #claimQueue(ReplicationQueueId)}.<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * {@link #cleanOldLogs(String, boolean, ReplicationSourceInterface)} is called by<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> * {@link ReplicationSourceInterface}. {@link #removePeer(String)} will terminate the<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * {@link ReplicationSourceInterface} firstly, then remove the wals from<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * {@link #walsByIdRecoveredQueues}. And {@link #claimQueue(ReplicationQueueId)} will add the wals<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * to {@link #walsByIdRecoveredQueues} firstly, then start up a {@link ReplicationSourceInterface}.<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * So there is no race here. For {@link #claimQueue(ReplicationQueueId)} and<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> * {@link #removePeer(String)}, there is already synchronized on {@link #oldsources}. So no need<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * synchronized on {@link #walsByIdRecoveredQueues}.</li><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> * <li>Need synchronized on {@link #latestPaths} to avoid the new open source miss new log.</li><a name="line.121"></a> |
| <span class="sourceLineNo">122</span> * <li>Need synchronized on {@link #oldsources} to avoid adding recovered source for the<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> * to-be-removed peer.</li><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * </ul><a name="line.124"></a> |
| <span class="sourceLineNo">125</span> */<a name="line.125"></a> |
| <span class="sourceLineNo">126</span>@InterfaceAudience.Private<a name="line.126"></a> |
| <span class="sourceLineNo">127</span>public class ReplicationSourceManager {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span><a name="line.128"></a> |
| <span class="sourceLineNo">129</span> private static final Logger LOG = LoggerFactory.getLogger(ReplicationSourceManager.class);<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // all the sources that read this RS's logs and every peer only has one replication source<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> private final ConcurrentMap<String, ReplicationSourceInterface> sources;<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> // List of all the sources we got from died RSs<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> private final List<ReplicationSourceInterface> oldsources;<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> /**<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> * Storage for queues that need persistance; e.g. Replication state so can be recovered after a<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * crash. queueStorage upkeep is spread about this class and passed to ReplicationSource instances<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * for these to do updates themselves. Not all ReplicationSource instances keep state.<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> */<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> private final ReplicationQueueStorage queueStorage;<a name="line.140"></a> |
| <span class="sourceLineNo">141</span><a name="line.141"></a> |
| <span class="sourceLineNo">142</span> private final ReplicationPeers replicationPeers;<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> // UUID for this cluster<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> private final UUID clusterId;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> // All about stopping<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> private final Server server;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span><a name="line.147"></a> |
| <span class="sourceLineNo">148</span> // All logs we are currently tracking<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> // Index structure of the map is: queue_id->logPrefix/logGroup->logs<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> private final ConcurrentMap<ReplicationQueueId, Map<String, NavigableSet<String>>> walsById;<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> // Logs for recovered sources we are currently tracking<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> // the map is: queue_id->logPrefix/logGroup->logs<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> // for recovered source, the WAL files should already been moved to oldLogDir, and we have<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> // different layout of old WAL files, for example, with server name sub directories or not, so<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> // here we record the full path instead of just the name, so when refreshing we can enqueue the<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> // WAL file again, without trying to guess the real path of the WAL files.<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> private final ConcurrentMap<ReplicationQueueId,<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> Map<String, NavigableSet<Path>>> walsByIdRecoveredQueues;<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> private final SyncReplicationPeerMappingManager syncReplicationPeerMappingManager;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> private final Configuration conf;<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> private final FileSystem fs;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> // The paths to the latest log of each wal group, for new coming peers<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> private final Map<String, Path> latestPaths;<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> // Path to the wals directories<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> private final Path logDir;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> // Path to the wal archive<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> private final Path oldLogDir;<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> private final WALFactory walFactory;<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> // The number of ms that we wait before moving znodes, HBASE-3596<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> private final long sleepBeforeFailover;<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> // Homemade executer service for replication<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> private final ThreadPoolExecutor executor;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span><a name="line.175"></a> |
| <span class="sourceLineNo">176</span> private AtomicLong totalBufferUsed = new AtomicLong();<a name="line.176"></a> |
| <span class="sourceLineNo">177</span><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> // How long should we sleep for each retry when deleting remote wal files for sync replication<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> // peer.<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> private final long sleepForRetries;<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> // Maximum number of retries before taking bold actions when deleting remote wal files for sync<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> // replication peer.<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> private final int maxRetriesMultiplier;<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // Total buffer size on this RegionServer for holding batched edits to be shipped.<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> private final long totalBufferLimit;<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> private final MetricsReplicationGlobalSourceSource globalMetrics;<a name="line.186"></a> |
| <span class="sourceLineNo">187</span><a name="line.187"></a> |
| <span class="sourceLineNo">188</span> /**<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> * Creates a replication manager and sets the watch on all the other registered region servers<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> * @param queueStorage the interface for manipulating replication queues<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> * @param conf the configuration to use<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * @param server the server for this region server<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * @param fs the file system to use<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> * @param logDir the directory that contains all wal directories of live RSs<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> * @param oldLogDir the directory where old logs are archived<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> */<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> public ReplicationSourceManager(ReplicationQueueStorage queueStorage,<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> ReplicationPeers replicationPeers, Configuration conf, Server server, FileSystem fs,<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> Path logDir, Path oldLogDir, UUID clusterId, WALFactory walFactory,<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> SyncReplicationPeerMappingManager syncReplicationPeerMappingManager,<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> MetricsReplicationGlobalSourceSource globalMetrics) throws IOException {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> this.sources = new ConcurrentHashMap<>();<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> this.queueStorage = queueStorage;<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> this.replicationPeers = replicationPeers;<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> this.server = server;<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> this.walsById = new ConcurrentHashMap<>();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> this.walsByIdRecoveredQueues = new ConcurrentHashMap<>();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> this.oldsources = new ArrayList<>();<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> this.conf = conf;<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> this.fs = fs;<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> this.logDir = logDir;<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> this.oldLogDir = oldLogDir;<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // 30 seconds<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> this.sleepBeforeFailover = conf.getLong("replication.sleep.before.failover", 30000);<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> this.clusterId = clusterId;<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> this.walFactory = walFactory;<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> this.syncReplicationPeerMappingManager = syncReplicationPeerMappingManager;<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> // It's preferable to failover 1 RS at a time, but with good zk servers<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> // more could be processed at the same time.<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> int nbWorkers = conf.getInt("replication.executor.workers", 1);<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> // use a short 100ms sleep since this could be done inline with a RS startup<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> // even if we fail, other region servers can take care of it<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> this.executor = new ThreadPoolExecutor(nbWorkers, nbWorkers, 100, TimeUnit.MILLISECONDS,<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> new LinkedBlockingQueue<>());<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> ThreadFactoryBuilder tfb = new ThreadFactoryBuilder();<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> tfb.setNameFormat("ReplicationExecutor-%d");<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> tfb.setDaemon(true);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> this.executor.setThreadFactory(tfb.build());<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> this.latestPaths = new HashMap<>();<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> this.sleepForRetries = this.conf.getLong("replication.source.sync.sleepforretries", 1000);<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> this.maxRetriesMultiplier =<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> this.conf.getInt("replication.source.sync.maxretriesmultiplier", 60);<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> this.totalBufferLimit = conf.getLong(HConstants.REPLICATION_SOURCE_TOTAL_BUFFER_KEY,<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> HConstants.REPLICATION_SOURCE_TOTAL_BUFFER_DFAULT);<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> this.globalMetrics = globalMetrics;<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> }<a name="line.236"></a> |
| <span class="sourceLineNo">237</span><a name="line.237"></a> |
| <span class="sourceLineNo">238</span> /**<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> * Adds a normal source per registered peer cluster.<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> */<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> void init() throws IOException {<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> for (String id : this.replicationPeers.getAllPeerIds()) {<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> addSource(id, true);<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> }<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span><a name="line.246"></a> |
| <span class="sourceLineNo">247</span> /**<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> * <ol><a name="line.248"></a> |
| <span class="sourceLineNo">249</span> * <li>Add peer to replicationPeers</li><a name="line.249"></a> |
| <span class="sourceLineNo">250</span> * <li>Add the normal source and related replication queue</li><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> * <li>Add HFile Refs</li><a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * </ol><a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * @param peerId the id of replication peer<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> */<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> public void addPeer(String peerId) throws IOException {<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> boolean added = false;<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> try {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> added = this.replicationPeers.addPeer(peerId);<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> } catch (ReplicationException e) {<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> throw new IOException(e);<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> }<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> if (added) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> addSource(peerId, false);<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> }<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> /**<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> * <ol><a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * <li>Remove peer for replicationPeers</li><a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * <li>Remove all the recovered sources for the specified id and related replication queues</li><a name="line.270"></a> |
| <span class="sourceLineNo">271</span> * <li>Remove the normal source and related replication queue</li><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * <li>Remove HFile Refs</li><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * </ol><a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * @param peerId the id of the replication peer<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> */<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> public void removePeer(String peerId) {<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> ReplicationPeer peer = replicationPeers.removePeer(peerId);<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> String terminateMessage = "Replication stream was removed by a user";<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> List<ReplicationSourceInterface> oldSourcesToDelete = new ArrayList<>();<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> // synchronized on oldsources to avoid adding recovered source for the to-be-removed peer<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> // see NodeFailoverWorker.run<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> synchronized (this.oldsources) {<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> // First close all the recovered sources for this peer<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> for (ReplicationSourceInterface src : oldsources) {<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> if (peerId.equals(src.getPeerId())) {<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> oldSourcesToDelete.add(src);<a name="line.286"></a> |
| <span class="sourceLineNo">287</span> }<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> }<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> for (ReplicationSourceInterface src : oldSourcesToDelete) {<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> src.terminate(terminateMessage);<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> removeRecoveredSource(src);<a name="line.291"></a> |
| <span class="sourceLineNo">292</span> }<a name="line.292"></a> |
| <span class="sourceLineNo">293</span> }<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> LOG.info("Number of deleted recovered sources for {}: {}", peerId, oldSourcesToDelete.size());<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> // Now close the normal source for this peer<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> ReplicationSourceInterface srcToRemove = this.sources.get(peerId);<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (srcToRemove != null) {<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> srcToRemove.terminate(terminateMessage);<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> removeSource(srcToRemove);<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> }<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> ReplicationPeerConfig peerConfig = peer.getPeerConfig();<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> if (peerConfig.isSyncReplication()) {<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> syncReplicationPeerMappingManager.remove(peerId, peerConfig);<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> }<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> }<a name="line.305"></a> |
| <span class="sourceLineNo">306</span><a name="line.306"></a> |
| <span class="sourceLineNo">307</span> /**<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> * @return a new 'classic' user-space replication source.<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> * @param queueId the id of the replication queue to associate the ReplicationSource with.<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> * @see #createCatalogReplicationSource(RegionInfo) for creating a ReplicationSource for meta.<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> */<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> private ReplicationSourceInterface createSource(ReplicationQueueData queueData,<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> ReplicationPeer replicationPeer) throws IOException {<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> ReplicationSourceInterface src = ReplicationSourceFactory.create(conf, queueData.getId());<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // Init the just created replication source. Pass the default walProvider's wal file length<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> // provider. Presumption is we replicate user-space Tables only. For hbase:meta region replica<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> // replication, see #createCatalogReplicationSource().<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> WALFileLengthProvider walFileLengthProvider = this.walFactory.getWALProvider() != null<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> ? this.walFactory.getWALProvider().getWALFileLengthProvider()<a name="line.319"></a> |
| <span class="sourceLineNo">320</span> : p -> OptionalLong.empty();<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> src.init(conf, fs, this, queueStorage, replicationPeer, server, queueData, clusterId,<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> walFileLengthProvider, new MetricsSource(queueData.getId().toString()));<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> return src;<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> }<a name="line.324"></a> |
| <span class="sourceLineNo">325</span><a name="line.325"></a> |
| <span class="sourceLineNo">326</span> /**<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> * Add a normal source for the given peer on this region server. Meanwhile, add new replication<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> * queue to storage. For the newly added peer, we only need to enqueue the latest log of each wal<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> * group and do replication.<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> * <p/><a name="line.330"></a> |
| <span class="sourceLineNo">331</span> * We add a {@code init} parameter to indicate whether this is part of the initialization process.<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> * If so, we should skip adding the replication queues as this may introduce dead lock on region<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> * server start up and hbase:replication table online.<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> * @param peerId the id of the replication peer<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> * @param init whether this call is part of the initialization process<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> * @return the source that was created<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> */<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> void addSource(String peerId, boolean init) throws IOException {<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> ReplicationPeer peer = replicationPeers.getPeer(peerId);<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> if (<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> ReplicationUtils.LEGACY_REGION_REPLICATION_ENDPOINT_NAME<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> .equals(peer.getPeerConfig().getReplicationEndpointImpl())<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> ) {<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> // we do not use this endpoint for region replication any more, see HBASE-26233<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> LOG.info("Legacy region replication peer found, skip adding: {}", peer.getPeerConfig());<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> return;<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> }<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> ReplicationQueueId queueId = new ReplicationQueueId(server.getServerName(), peerId);<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> ReplicationSourceInterface src =<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> createSource(new ReplicationQueueData(queueId, ImmutableMap.of()), peer);<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> // synchronized on latestPaths to avoid missing the new log<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> synchronized (this.latestPaths) {<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> this.sources.put(peerId, src);<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> Map<String, NavigableSet<String>> walsByGroup = new HashMap<>();<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> this.walsById.put(queueId, walsByGroup);<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> // Add the latest wal to that source's queue<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (!latestPaths.isEmpty()) {<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> for (Map.Entry<String, Path> walPrefixAndPath : latestPaths.entrySet()) {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> Path walPath = walPrefixAndPath.getValue();<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> NavigableSet<String> wals = new TreeSet<>();<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> wals.add(walPath.getName());<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> walsByGroup.put(walPrefixAndPath.getKey(), wals);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> if (!init) {<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> // Abort RS and throw exception to make add peer failed<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> // Ideally we'd better use the current file size as offset so we can skip replicating<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> // the data before adding replication peer, but the problem is that the file may not end<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> // at a valid entry's ending, and the current WAL Reader implementation can not deal<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> // with reading from the middle of a WAL entry. Can improve later.<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> abortAndThrowIOExceptionWhenFail(<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> () -> this.queueStorage.setOffset(queueId, walPrefixAndPath.getKey(),<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> new ReplicationGroupOffset(walPath.getName(), 0), Collections.emptyMap()));<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> }<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> src.enqueueLog(walPath);<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> LOG.trace("Enqueued {} to source {} during source creation.", walPath, src.getQueueId());<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> }<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> }<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> }<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> ReplicationPeerConfig peerConfig = peer.getPeerConfig();<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> if (peerConfig.isSyncReplication()) {<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> syncReplicationPeerMappingManager.add(peer.getId(), peerConfig);<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> }<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> src.startup();<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span><a name="line.384"></a> |
| <span class="sourceLineNo">385</span> /**<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> * <p><a name="line.386"></a> |
| <span class="sourceLineNo">387</span> * This is used when we transit a sync replication peer to {@link SyncReplicationState#STANDBY}.<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> * </p><a name="line.388"></a> |
| <span class="sourceLineNo">389</span> * <p><a name="line.389"></a> |
| <span class="sourceLineNo">390</span> * When transiting to {@link SyncReplicationState#STANDBY}, we can remove all the pending wal<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> * files for a replication peer as we do not need to replicate them any more. And this is<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> * necessary, otherwise when we transit back to {@link SyncReplicationState#DOWNGRADE_ACTIVE}<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> * later, the stale data will be replicated again and cause inconsistency.<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> * </p><a name="line.394"></a> |
| <span class="sourceLineNo">395</span> * <p><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> * See HBASE-20426 for more details.<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> * </p><a name="line.397"></a> |
| <span class="sourceLineNo">398</span> * @param peerId the id of the sync replication peer<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> */<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> public void drainSources(String peerId) throws IOException, ReplicationException {<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> String terminateMessage = "Sync replication peer " + peerId<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> + " is transiting to STANDBY. Will close the previous replication source and open a new one";<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> ReplicationPeer peer = replicationPeers.getPeer(peerId);<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> assert peer.getPeerConfig().isSyncReplication();<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> ReplicationQueueId queueId = new ReplicationQueueId(server.getServerName(), peerId);<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> // TODO: use empty initial offsets for now, revisit when adding support for sync replication<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> ReplicationSourceInterface src =<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> createSource(new ReplicationQueueData(queueId, ImmutableMap.of()), peer);<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> // synchronized here to avoid race with postLogRoll where we add new log to source and also<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> // walsById.<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> ReplicationSourceInterface toRemove;<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> ReplicationQueueData queueData;<a name="line.412"></a> |
| <span class="sourceLineNo">413</span> synchronized (latestPaths) {<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> // Here we make a copy of all the remaining wal files and then delete them from the<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> // replication queue storage after releasing the lock. It is not safe to just remove the old<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> // map from walsById since later we may fail to update the replication queue storage, and when<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> // we retry next time, we can not know the wal files that needs to be set to the replication<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> // queue storage<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> ImmutableMap.Builder<String, ReplicationGroupOffset> builder = ImmutableMap.builder();<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> synchronized (walsById) {<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> walsById.get(queueId).forEach((group, wals) -> {<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> if (!wals.isEmpty()) {<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> builder.put(group, new ReplicationGroupOffset(wals.last(), -1));<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> }<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> });<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> }<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> queueData = new ReplicationQueueData(queueId, builder.build());<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> src = createSource(queueData, peer);<a name="line.428"></a> |
| <span class="sourceLineNo">429</span> toRemove = sources.put(peerId, src);<a name="line.429"></a> |
| <span class="sourceLineNo">430</span> if (toRemove != null) {<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> LOG.info("Terminate replication source for " + toRemove.getPeerId());<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> toRemove.terminate(terminateMessage);<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> toRemove.getSourceMetrics().clear();<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> }<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> }<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> for (Map.Entry<String, ReplicationGroupOffset> entry : queueData.getOffsets().entrySet()) {<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> queueStorage.setOffset(queueId, entry.getKey(), entry.getValue(), Collections.emptyMap());<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> }<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> LOG.info("Startup replication source for " + src.getPeerId());<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> src.startup();<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> synchronized (walsById) {<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> Map<String, NavigableSet<String>> wals = walsById.get(queueId);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> queueData.getOffsets().forEach((group, offset) -> {<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> NavigableSet<String> walsByGroup = wals.get(group);<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> if (walsByGroup != null) {<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> walsByGroup.headSet(offset.getWal(), true).clear();<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> }<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> });<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> }<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> // synchronized on oldsources to avoid race with NodeFailoverWorker. Since NodeFailoverWorker is<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> // a background task, we will delete the file from replication queue storage under the lock to<a name="line.451"></a> |
| <span class="sourceLineNo">452</span> // simplify the logic.<a name="line.452"></a> |
| <span class="sourceLineNo">453</span> synchronized (this.oldsources) {<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> for (Iterator<ReplicationSourceInterface> iter = oldsources.iterator(); iter.hasNext();) {<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> ReplicationSourceInterface oldSource = iter.next();<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> if (oldSource.getPeerId().equals(peerId)) {<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> ReplicationQueueId oldSourceQueueId = oldSource.getQueueId();<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> oldSource.terminate(terminateMessage);<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> oldSource.getSourceMetrics().clear();<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> queueStorage.removeQueue(oldSourceQueueId);<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> walsByIdRecoveredQueues.remove(oldSourceQueueId);<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> iter.remove();<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> }<a name="line.463"></a> |
| <span class="sourceLineNo">464</span> }<a name="line.464"></a> |
| <span class="sourceLineNo">465</span> }<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> }<a name="line.466"></a> |
| <span class="sourceLineNo">467</span><a name="line.467"></a> |
| <span class="sourceLineNo">468</span> private ReplicationSourceInterface createRefreshedSource(ReplicationQueueId queueId,<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> ReplicationPeer peer) throws IOException, ReplicationException {<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> Map<String, ReplicationGroupOffset> offsets = queueStorage.getOffsets(queueId);<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> return createSource(new ReplicationQueueData(queueId, ImmutableMap.copyOf(offsets)), peer);<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> }<a name="line.472"></a> |
| <span class="sourceLineNo">473</span><a name="line.473"></a> |
| <span class="sourceLineNo">474</span> /**<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> * Close the previous replication sources of this peer id and open new sources to trigger the new<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> * replication state changes or new replication config changes. Here we don't need to change<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> * replication queue storage and only to enqueue all logs to the new replication source<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> * @param peerId the id of the replication peer<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> */<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> public void refreshSources(String peerId) throws ReplicationException, IOException {<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> String terminateMessage = "Peer " + peerId<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> + " state or config changed. Will close the previous replication source and open a new one";<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> ReplicationPeer peer = replicationPeers.getPeer(peerId);<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> ReplicationQueueId queueId = new ReplicationQueueId(server.getServerName(), peerId);<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> ReplicationSourceInterface src;<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> // synchronized on latestPaths to avoid missing the new log<a name="line.486"></a> |
| <span class="sourceLineNo">487</span> synchronized (this.latestPaths) {<a name="line.487"></a> |
| <span class="sourceLineNo">488</span> ReplicationSourceInterface toRemove = this.sources.remove(peerId);<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> if (toRemove != null) {<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> LOG.info("Terminate replication source for " + toRemove.getPeerId());<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> // Do not clear metrics<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> toRemove.terminate(terminateMessage, null, false);<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> }<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> src = createRefreshedSource(queueId, peer);<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> this.sources.put(peerId, src);<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> for (NavigableSet<String> walsByGroup : walsById.get(queueId).values()) {<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> walsByGroup.forEach(wal -> src.enqueueLog(new Path(this.logDir, wal)));<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> }<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> }<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> LOG.info("Startup replication source for " + src.getPeerId());<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> src.startup();<a name="line.501"></a> |
| <span class="sourceLineNo">502</span><a name="line.502"></a> |
| <span class="sourceLineNo">503</span> List<ReplicationSourceInterface> toStartup = new ArrayList<>();<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> // synchronized on oldsources to avoid race with NodeFailoverWorker<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> synchronized (this.oldsources) {<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> List<ReplicationQueueId> oldSourceQueueIds = new ArrayList<>();<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> for (Iterator<ReplicationSourceInterface> iter = this.oldsources.iterator(); iter<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> .hasNext();) {<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> ReplicationSourceInterface oldSource = iter.next();<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> if (oldSource.getPeerId().equals(peerId)) {<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> oldSourceQueueIds.add(oldSource.getQueueId());<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> oldSource.terminate(terminateMessage);<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> iter.remove();<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> }<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> }<a name="line.515"></a> |
| <span class="sourceLineNo">516</span> for (ReplicationQueueId oldSourceQueueId : oldSourceQueueIds) {<a name="line.516"></a> |
| <span class="sourceLineNo">517</span> ReplicationSourceInterface recoveredReplicationSource =<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> createRefreshedSource(oldSourceQueueId, peer);<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> this.oldsources.add(recoveredReplicationSource);<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> for (NavigableSet<Path> walsByGroup : walsByIdRecoveredQueues.get(oldSourceQueueId)<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> .values()) {<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> walsByGroup.forEach(wal -> recoveredReplicationSource.enqueueLog(wal));<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> }<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> toStartup.add(recoveredReplicationSource);<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> }<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> }<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> for (ReplicationSourceInterface replicationSource : toStartup) {<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> replicationSource.startup();<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span> }<a name="line.530"></a> |
| <span class="sourceLineNo">531</span><a name="line.531"></a> |
| <span class="sourceLineNo">532</span> /**<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> * Clear the metrics and related replication queue of the specified old source<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> * @param src source to clear<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> */<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> private boolean removeRecoveredSource(ReplicationSourceInterface src) {<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> if (!this.oldsources.remove(src)) {<a name="line.537"></a> |
| <span class="sourceLineNo">538</span> return false;<a name="line.538"></a> |
| <span class="sourceLineNo">539</span> }<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> LOG.info("Done with the recovered queue {}", src.getQueueId());<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> // Delete queue from storage and memory<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> deleteQueue(src.getQueueId());<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> this.walsByIdRecoveredQueues.remove(src.getQueueId());<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> return true;<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> }<a name="line.545"></a> |
| <span class="sourceLineNo">546</span><a name="line.546"></a> |
| <span class="sourceLineNo">547</span> void finishRecoveredSource(ReplicationSourceInterface src) {<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> synchronized (oldsources) {<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> if (!removeRecoveredSource(src)) {<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> return;<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> }<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> }<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> LOG.info("Finished recovering queue {} with the following stats: {}", src.getQueueId(),<a name="line.553"></a> |
| <span class="sourceLineNo">554</span> src.getStats());<a name="line.554"></a> |
| <span class="sourceLineNo">555</span> }<a name="line.555"></a> |
| <span class="sourceLineNo">556</span><a name="line.556"></a> |
| <span class="sourceLineNo">557</span> /**<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> * Clear the metrics and related replication queue of the specified old source<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> * @param src source to clear<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> */<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> void removeSource(ReplicationSourceInterface src) {<a name="line.561"></a> |
| <span class="sourceLineNo">562</span> LOG.info("Done with the queue " + src.getQueueId());<a name="line.562"></a> |
| <span class="sourceLineNo">563</span> this.sources.remove(src.getPeerId());<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> // Delete queue from storage and memory<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> deleteQueue(src.getQueueId());<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> this.walsById.remove(src.getQueueId());<a name="line.566"></a> |
| <span class="sourceLineNo">567</span><a name="line.567"></a> |
| <span class="sourceLineNo">568</span> }<a name="line.568"></a> |
| <span class="sourceLineNo">569</span><a name="line.569"></a> |
| <span class="sourceLineNo">570</span> /**<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> * Delete a complete queue of wals associated with a replication source<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> * @param queueId the id of replication queue to delete<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> */<a name="line.573"></a> |
| <span class="sourceLineNo">574</span> private void deleteQueue(ReplicationQueueId queueId) {<a name="line.574"></a> |
| <span class="sourceLineNo">575</span> abortWhenFail(() -> this.queueStorage.removeQueue(queueId));<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> }<a name="line.576"></a> |
| <span class="sourceLineNo">577</span><a name="line.577"></a> |
| <span class="sourceLineNo">578</span> @FunctionalInterface<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> private interface ReplicationQueueOperation {<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> void exec() throws ReplicationException;<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> }<a name="line.581"></a> |
| <span class="sourceLineNo">582</span><a name="line.582"></a> |
| <span class="sourceLineNo">583</span> /**<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> * Refresh replication source will terminate the old source first, then the source thread will be<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> * interrupted. Need to handle it instead of abort the region server.<a name="line.585"></a> |
| <span class="sourceLineNo">586</span> */<a name="line.586"></a> |
| <span class="sourceLineNo">587</span> private void interruptOrAbortWhenFail(ReplicationQueueOperation op) {<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> try {<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> op.exec();<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> } catch (ReplicationException e) {<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> if (<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> e.getCause() != null && e.getCause() instanceof KeeperException.SystemErrorException<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> && e.getCause().getCause() != null<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> && e.getCause().getCause() instanceof InterruptedException<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> ) {<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> // ReplicationRuntimeException(a RuntimeException) is thrown out here. The reason is<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> // that thread is interrupted deep down in the stack, it should pass the following<a name="line.597"></a> |
| <span class="sourceLineNo">598</span> // processing logic and propagate to the most top layer which can handle this exception<a name="line.598"></a> |
| <span class="sourceLineNo">599</span> // properly. In this specific case, the top layer is ReplicationSourceShipper#run().<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> throw new ReplicationRuntimeException(<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> "Thread is interrupted, the replication source may be terminated",<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> e.getCause().getCause());<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> }<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> server.abort("Failed to operate on replication queue", e);<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> }<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> }<a name="line.606"></a> |
| <span class="sourceLineNo">607</span><a name="line.607"></a> |
| <span class="sourceLineNo">608</span> private void abortWhenFail(ReplicationQueueOperation op) {<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> try {<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> op.exec();<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> } catch (ReplicationException e) {<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> server.abort("Failed to operate on replication queue", e);<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> }<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> }<a name="line.614"></a> |
| <span class="sourceLineNo">615</span><a name="line.615"></a> |
| <span class="sourceLineNo">616</span> private void throwIOExceptionWhenFail(ReplicationQueueOperation op) throws IOException {<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> try {<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> op.exec();<a name="line.618"></a> |
| <span class="sourceLineNo">619</span> } catch (ReplicationException e) {<a name="line.619"></a> |
| <span class="sourceLineNo">620</span> throw new IOException(e);<a name="line.620"></a> |
| <span class="sourceLineNo">621</span> }<a name="line.621"></a> |
| <span class="sourceLineNo">622</span> }<a name="line.622"></a> |
| <span class="sourceLineNo">623</span><a name="line.623"></a> |
| <span class="sourceLineNo">624</span> private void abortAndThrowIOExceptionWhenFail(ReplicationQueueOperation op) throws IOException {<a name="line.624"></a> |
| <span class="sourceLineNo">625</span> try {<a name="line.625"></a> |
| <span class="sourceLineNo">626</span> op.exec();<a name="line.626"></a> |
| <span class="sourceLineNo">627</span> } catch (ReplicationException e) {<a name="line.627"></a> |
| <span class="sourceLineNo">628</span> server.abort("Failed to operate on replication queue", e);<a name="line.628"></a> |
| <span class="sourceLineNo">629</span> throw new IOException(e);<a name="line.629"></a> |
| <span class="sourceLineNo">630</span> }<a name="line.630"></a> |
| <span class="sourceLineNo">631</span> }<a name="line.631"></a> |
| <span class="sourceLineNo">632</span><a name="line.632"></a> |
| <span class="sourceLineNo">633</span> /**<a name="line.633"></a> |
| <span class="sourceLineNo">634</span> * This method will log the current position to storage. And also clean old logs from the<a name="line.634"></a> |
| <span class="sourceLineNo">635</span> * replication queue.<a name="line.635"></a> |
| <span class="sourceLineNo">636</span> * @param source the replication source<a name="line.636"></a> |
| <span class="sourceLineNo">637</span> * @param entryBatch the wal entry batch we just shipped<a name="line.637"></a> |
| <span class="sourceLineNo">638</span> */<a name="line.638"></a> |
| <span class="sourceLineNo">639</span> public void logPositionAndCleanOldLogs(ReplicationSourceInterface source,<a name="line.639"></a> |
| <span class="sourceLineNo">640</span> WALEntryBatch entryBatch) {<a name="line.640"></a> |
| <span class="sourceLineNo">641</span> String walName = entryBatch.getLastWalPath().getName();<a name="line.641"></a> |
| <span class="sourceLineNo">642</span> String walPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(walName);<a name="line.642"></a> |
| <span class="sourceLineNo">643</span> // if end of file, we just set the offset to -1 so we know that this file has already been fully<a name="line.643"></a> |
| <span class="sourceLineNo">644</span> // replicated, otherwise we need to compare the file length<a name="line.644"></a> |
| <span class="sourceLineNo">645</span> ReplicationGroupOffset offset = new ReplicationGroupOffset(walName,<a name="line.645"></a> |
| <span class="sourceLineNo">646</span> entryBatch.isEndOfFile() ? -1 : entryBatch.getLastWalPosition());<a name="line.646"></a> |
| <span class="sourceLineNo">647</span> interruptOrAbortWhenFail(() -> this.queueStorage.setOffset(source.getQueueId(), walPrefix,<a name="line.647"></a> |
| <span class="sourceLineNo">648</span> offset, entryBatch.getLastSeqIds()));<a name="line.648"></a> |
| <span class="sourceLineNo">649</span> cleanOldLogs(walName, entryBatch.isEndOfFile(), source);<a name="line.649"></a> |
| <span class="sourceLineNo">650</span> }<a name="line.650"></a> |
| <span class="sourceLineNo">651</span><a name="line.651"></a> |
| <span class="sourceLineNo">652</span> /**<a name="line.652"></a> |
| <span class="sourceLineNo">653</span> * Cleans a log file and all older logs from replication queue. Called when we are sure that a log<a name="line.653"></a> |
| <span class="sourceLineNo">654</span> * file is closed and has no more entries.<a name="line.654"></a> |
| <span class="sourceLineNo">655</span> * @param log Path to the log<a name="line.655"></a> |
| <span class="sourceLineNo">656</span> * @param inclusive whether we should also remove the given log file<a name="line.656"></a> |
| <span class="sourceLineNo">657</span> * @param source the replication source<a name="line.657"></a> |
| <span class="sourceLineNo">658</span> */<a name="line.658"></a> |
| <span class="sourceLineNo">659</span> void cleanOldLogs(String log, boolean inclusive, ReplicationSourceInterface source) {<a name="line.659"></a> |
| <span class="sourceLineNo">660</span> String logPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(log);<a name="line.660"></a> |
| <span class="sourceLineNo">661</span> if (source.isRecovered()) {<a name="line.661"></a> |
| <span class="sourceLineNo">662</span> NavigableSet<Path> wals = walsByIdRecoveredQueues.get(source.getQueueId()).get(logPrefix);<a name="line.662"></a> |
| <span class="sourceLineNo">663</span> if (wals != null) {<a name="line.663"></a> |
| <span class="sourceLineNo">664</span> // here we just want to compare the timestamp, so it is OK to just create a fake WAL path<a name="line.664"></a> |
| <span class="sourceLineNo">665</span> NavigableSet<String> walsToRemove = wals.headSet(new Path(oldLogDir, log), inclusive)<a name="line.665"></a> |
| <span class="sourceLineNo">666</span> .stream().map(Path::getName).collect(Collectors.toCollection(TreeSet::new));<a name="line.666"></a> |
| <span class="sourceLineNo">667</span> if (walsToRemove.isEmpty()) {<a name="line.667"></a> |
| <span class="sourceLineNo">668</span> return;<a name="line.668"></a> |
| <span class="sourceLineNo">669</span> }<a name="line.669"></a> |
| <span class="sourceLineNo">670</span> cleanOldLogs(walsToRemove, source);<a name="line.670"></a> |
| <span class="sourceLineNo">671</span> walsToRemove.clear();<a name="line.671"></a> |
| <span class="sourceLineNo">672</span> }<a name="line.672"></a> |
| <span class="sourceLineNo">673</span> } else {<a name="line.673"></a> |
| <span class="sourceLineNo">674</span> NavigableSet<String> wals;<a name="line.674"></a> |
| <span class="sourceLineNo">675</span> NavigableSet<String> walsToRemove;<a name="line.675"></a> |
| <span class="sourceLineNo">676</span> // synchronized on walsById to avoid race with postLogRoll<a name="line.676"></a> |
| <span class="sourceLineNo">677</span> synchronized (this.walsById) {<a name="line.677"></a> |
| <span class="sourceLineNo">678</span> wals = walsById.get(source.getQueueId()).get(logPrefix);<a name="line.678"></a> |
| <span class="sourceLineNo">679</span> if (wals == null) {<a name="line.679"></a> |
| <span class="sourceLineNo">680</span> return;<a name="line.680"></a> |
| <span class="sourceLineNo">681</span> }<a name="line.681"></a> |
| <span class="sourceLineNo">682</span> walsToRemove = wals.headSet(log, inclusive);<a name="line.682"></a> |
| <span class="sourceLineNo">683</span> if (walsToRemove.isEmpty()) {<a name="line.683"></a> |
| <span class="sourceLineNo">684</span> return;<a name="line.684"></a> |
| <span class="sourceLineNo">685</span> }<a name="line.685"></a> |
| <span class="sourceLineNo">686</span> walsToRemove = new TreeSet<>(walsToRemove);<a name="line.686"></a> |
| <span class="sourceLineNo">687</span> }<a name="line.687"></a> |
| <span class="sourceLineNo">688</span> // cleanOldLogs may spend some time, especially for sync replication where we may want to<a name="line.688"></a> |
| <span class="sourceLineNo">689</span> // remove remote wals as the remote cluster may have already been down, so we do it outside<a name="line.689"></a> |
| <span class="sourceLineNo">690</span> // the lock to avoid block preLogRoll<a name="line.690"></a> |
| <span class="sourceLineNo">691</span> cleanOldLogs(walsToRemove, source);<a name="line.691"></a> |
| <span class="sourceLineNo">692</span> // now let's remove the files in the set<a name="line.692"></a> |
| <span class="sourceLineNo">693</span> synchronized (this.walsById) {<a name="line.693"></a> |
| <span class="sourceLineNo">694</span> wals.removeAll(walsToRemove);<a name="line.694"></a> |
| <span class="sourceLineNo">695</span> }<a name="line.695"></a> |
| <span class="sourceLineNo">696</span> }<a name="line.696"></a> |
| <span class="sourceLineNo">697</span> }<a name="line.697"></a> |
| <span class="sourceLineNo">698</span><a name="line.698"></a> |
| <span class="sourceLineNo">699</span> private void removeRemoteWALs(String peerId, String remoteWALDir, Collection<String> wals)<a name="line.699"></a> |
| <span class="sourceLineNo">700</span> throws IOException {<a name="line.700"></a> |
| <span class="sourceLineNo">701</span> Path remoteWALDirForPeer = ReplicationUtils.getPeerRemoteWALDir(remoteWALDir, peerId);<a name="line.701"></a> |
| <span class="sourceLineNo">702</span> FileSystem fs = ReplicationUtils.getRemoteWALFileSystem(conf, remoteWALDir);<a name="line.702"></a> |
| <span class="sourceLineNo">703</span> for (String wal : wals) {<a name="line.703"></a> |
| <span class="sourceLineNo">704</span> Path walFile = new Path(remoteWALDirForPeer, wal);<a name="line.704"></a> |
| <span class="sourceLineNo">705</span> try {<a name="line.705"></a> |
| <span class="sourceLineNo">706</span> if (!fs.delete(walFile, false) && fs.exists(walFile)) {<a name="line.706"></a> |
| <span class="sourceLineNo">707</span> throw new IOException("Can not delete " + walFile);<a name="line.707"></a> |
| <span class="sourceLineNo">708</span> }<a name="line.708"></a> |
| <span class="sourceLineNo">709</span> } catch (FileNotFoundException e) {<a name="line.709"></a> |
| <span class="sourceLineNo">710</span> // Just ignore since this means the file has already been deleted.<a name="line.710"></a> |
| <span class="sourceLineNo">711</span> // The javadoc of the FileSystem.delete methods does not specify the behavior of deleting an<a name="line.711"></a> |
| <span class="sourceLineNo">712</span> // inexistent file, so here we deal with both, i.e, check the return value of the<a name="line.712"></a> |
| <span class="sourceLineNo">713</span> // FileSystem.delete, and also catch FNFE.<a name="line.713"></a> |
| <span class="sourceLineNo">714</span> LOG.debug("The remote wal {} has already been deleted?", walFile, e);<a name="line.714"></a> |
| <span class="sourceLineNo">715</span> }<a name="line.715"></a> |
| <span class="sourceLineNo">716</span> }<a name="line.716"></a> |
| <span class="sourceLineNo">717</span> }<a name="line.717"></a> |
| <span class="sourceLineNo">718</span><a name="line.718"></a> |
| <span class="sourceLineNo">719</span> private void cleanOldLogs(NavigableSet<String> wals, ReplicationSourceInterface source) {<a name="line.719"></a> |
| <span class="sourceLineNo">720</span> LOG.debug("Removing {} logs in the list: {}", wals.size(), wals);<a name="line.720"></a> |
| <span class="sourceLineNo">721</span> // The intention here is that, we want to delete the remote wal files ASAP as it may effect the<a name="line.721"></a> |
| <span class="sourceLineNo">722</span> // failover time if you want to transit the remote cluster from S to A. And the infinite retry<a name="line.722"></a> |
| <span class="sourceLineNo">723</span> // is not a problem, as if we can not contact with the remote HDFS cluster, then usually we can<a name="line.723"></a> |
| <span class="sourceLineNo">724</span> // not contact with the HBase cluster either, so the replication will be blocked either.<a name="line.724"></a> |
| <span class="sourceLineNo">725</span> if (source.isSyncReplication()) {<a name="line.725"></a> |
| <span class="sourceLineNo">726</span> String peerId = source.getPeerId();<a name="line.726"></a> |
| <span class="sourceLineNo">727</span> String remoteWALDir = source.getPeer().getPeerConfig().getRemoteWALDir();<a name="line.727"></a> |
| <span class="sourceLineNo">728</span> // Filter out the wals need to be removed from the remote directory. Its name should be the<a name="line.728"></a> |
| <span class="sourceLineNo">729</span> // special format, and also, the peer id in its name should match the peer id for the<a name="line.729"></a> |
| <span class="sourceLineNo">730</span> // replication source.<a name="line.730"></a> |
| <span class="sourceLineNo">731</span> List<String> remoteWals =<a name="line.731"></a> |
| <span class="sourceLineNo">732</span> wals.stream().filter(w -> AbstractWALProvider.getSyncReplicationPeerIdFromWALName(w)<a name="line.732"></a> |
| <span class="sourceLineNo">733</span> .map(peerId::equals).orElse(false)).collect(Collectors.toList());<a name="line.733"></a> |
| <span class="sourceLineNo">734</span> LOG.debug("Removing {} logs from remote dir {} in the list: {}", remoteWals.size(),<a name="line.734"></a> |
| <span class="sourceLineNo">735</span> remoteWALDir, remoteWals);<a name="line.735"></a> |
| <span class="sourceLineNo">736</span> if (!remoteWals.isEmpty()) {<a name="line.736"></a> |
| <span class="sourceLineNo">737</span> for (int sleepMultiplier = 0;;) {<a name="line.737"></a> |
| <span class="sourceLineNo">738</span> try {<a name="line.738"></a> |
| <span class="sourceLineNo">739</span> removeRemoteWALs(peerId, remoteWALDir, remoteWals);<a name="line.739"></a> |
| <span class="sourceLineNo">740</span> break;<a name="line.740"></a> |
| <span class="sourceLineNo">741</span> } catch (IOException e) {<a name="line.741"></a> |
| <span class="sourceLineNo">742</span> LOG.warn("Failed to delete remote wals from remote dir {} for peer {}", remoteWALDir,<a name="line.742"></a> |
| <span class="sourceLineNo">743</span> peerId);<a name="line.743"></a> |
| <span class="sourceLineNo">744</span> }<a name="line.744"></a> |
| <span class="sourceLineNo">745</span> if (!source.isSourceActive()) {<a name="line.745"></a> |
| <span class="sourceLineNo">746</span> // skip the following operations<a name="line.746"></a> |
| <span class="sourceLineNo">747</span> return;<a name="line.747"></a> |
| <span class="sourceLineNo">748</span> }<a name="line.748"></a> |
| <span class="sourceLineNo">749</span> if (<a name="line.749"></a> |
| <span class="sourceLineNo">750</span> ReplicationUtils.sleepForRetries("Failed to delete remote wals", sleepForRetries,<a name="line.750"></a> |
| <span class="sourceLineNo">751</span> sleepMultiplier, maxRetriesMultiplier)<a name="line.751"></a> |
| <span class="sourceLineNo">752</span> ) {<a name="line.752"></a> |
| <span class="sourceLineNo">753</span> sleepMultiplier++;<a name="line.753"></a> |
| <span class="sourceLineNo">754</span> }<a name="line.754"></a> |
| <span class="sourceLineNo">755</span> }<a name="line.755"></a> |
| <span class="sourceLineNo">756</span> }<a name="line.756"></a> |
| <span class="sourceLineNo">757</span> }<a name="line.757"></a> |
| <span class="sourceLineNo">758</span> }<a name="line.758"></a> |
| <span class="sourceLineNo">759</span><a name="line.759"></a> |
| <span class="sourceLineNo">760</span> // public because of we call it in TestReplicationEmptyWALRecovery<a name="line.760"></a> |
| <span class="sourceLineNo">761</span> public void postLogRoll(Path newLog) throws IOException {<a name="line.761"></a> |
| <span class="sourceLineNo">762</span> String logName = newLog.getName();<a name="line.762"></a> |
| <span class="sourceLineNo">763</span> String logPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(logName);<a name="line.763"></a> |
| <span class="sourceLineNo">764</span> // synchronized on latestPaths to avoid the new open source miss the new log<a name="line.764"></a> |
| <span class="sourceLineNo">765</span> synchronized (this.latestPaths) {<a name="line.765"></a> |
| <span class="sourceLineNo">766</span> // synchronized on walsById to avoid race with cleanOldLogs<a name="line.766"></a> |
| <span class="sourceLineNo">767</span> synchronized (this.walsById) {<a name="line.767"></a> |
| <span class="sourceLineNo">768</span> // Update walsById map<a name="line.768"></a> |
| <span class="sourceLineNo">769</span> for (Map.Entry<ReplicationQueueId, Map<String, NavigableSet<String>>> entry : this.walsById<a name="line.769"></a> |
| <span class="sourceLineNo">770</span> .entrySet()) {<a name="line.770"></a> |
| <span class="sourceLineNo">771</span> ReplicationQueueId queueId = entry.getKey();<a name="line.771"></a> |
| <span class="sourceLineNo">772</span> String peerId = queueId.getPeerId();<a name="line.772"></a> |
| <span class="sourceLineNo">773</span> Map<String, NavigableSet<String>> walsByPrefix = entry.getValue();<a name="line.773"></a> |
| <span class="sourceLineNo">774</span> boolean existingPrefix = false;<a name="line.774"></a> |
| <span class="sourceLineNo">775</span> for (Map.Entry<String, NavigableSet<String>> walsEntry : walsByPrefix.entrySet()) {<a name="line.775"></a> |
| <span class="sourceLineNo">776</span> SortedSet<String> wals = walsEntry.getValue();<a name="line.776"></a> |
| <span class="sourceLineNo">777</span> if (this.sources.isEmpty()) {<a name="line.777"></a> |
| <span class="sourceLineNo">778</span> // If there's no slaves, don't need to keep the old wals since<a name="line.778"></a> |
| <span class="sourceLineNo">779</span> // we only consider the last one when a new slave comes in<a name="line.779"></a> |
| <span class="sourceLineNo">780</span> wals.clear();<a name="line.780"></a> |
| <span class="sourceLineNo">781</span> }<a name="line.781"></a> |
| <span class="sourceLineNo">782</span> if (logPrefix.equals(walsEntry.getKey())) {<a name="line.782"></a> |
| <span class="sourceLineNo">783</span> wals.add(logName);<a name="line.783"></a> |
| <span class="sourceLineNo">784</span> existingPrefix = true;<a name="line.784"></a> |
| <span class="sourceLineNo">785</span> }<a name="line.785"></a> |
| <span class="sourceLineNo">786</span> }<a name="line.786"></a> |
| <span class="sourceLineNo">787</span> if (!existingPrefix) {<a name="line.787"></a> |
| <span class="sourceLineNo">788</span> // The new log belongs to a new group, add it into this peer<a name="line.788"></a> |
| <span class="sourceLineNo">789</span> LOG.debug("Start tracking logs for wal group {} for peer {}", logPrefix, peerId);<a name="line.789"></a> |
| <span class="sourceLineNo">790</span> NavigableSet<String> wals = new TreeSet<>();<a name="line.790"></a> |
| <span class="sourceLineNo">791</span> wals.add(logName);<a name="line.791"></a> |
| <span class="sourceLineNo">792</span> walsByPrefix.put(logPrefix, wals);<a name="line.792"></a> |
| <span class="sourceLineNo">793</span> }<a name="line.793"></a> |
| <span class="sourceLineNo">794</span> }<a name="line.794"></a> |
| <span class="sourceLineNo">795</span> }<a name="line.795"></a> |
| <span class="sourceLineNo">796</span><a name="line.796"></a> |
| <span class="sourceLineNo">797</span> // Add to latestPaths<a name="line.797"></a> |
| <span class="sourceLineNo">798</span> latestPaths.put(logPrefix, newLog);<a name="line.798"></a> |
| <span class="sourceLineNo">799</span> }<a name="line.799"></a> |
| <span class="sourceLineNo">800</span> // This only updates the sources we own, not the recovered ones<a name="line.800"></a> |
| <span class="sourceLineNo">801</span> for (ReplicationSourceInterface source : this.sources.values()) {<a name="line.801"></a> |
| <span class="sourceLineNo">802</span> source.enqueueLog(newLog);<a name="line.802"></a> |
| <span class="sourceLineNo">803</span> LOG.trace("Enqueued {} to source {} while performing postLogRoll operation.", newLog,<a name="line.803"></a> |
| <span class="sourceLineNo">804</span> source.getQueueId());<a name="line.804"></a> |
| <span class="sourceLineNo">805</span> }<a name="line.805"></a> |
| <span class="sourceLineNo">806</span> }<a name="line.806"></a> |
| <span class="sourceLineNo">807</span><a name="line.807"></a> |
| <span class="sourceLineNo">808</span> /**<a name="line.808"></a> |
| <span class="sourceLineNo">809</span> * Check whether we should replicate the given {@code wal}.<a name="line.809"></a> |
| <span class="sourceLineNo">810</span> * @param wal the file name of the wal<a name="line.810"></a> |
| <span class="sourceLineNo">811</span> * @return {@code true} means we should replicate the given {@code wal}, otherwise {@code false}.<a name="line.811"></a> |
| <span class="sourceLineNo">812</span> */<a name="line.812"></a> |
| <span class="sourceLineNo">813</span> private boolean shouldReplicate(ReplicationGroupOffset offset, String wal) {<a name="line.813"></a> |
| <span class="sourceLineNo">814</span> // skip replicating meta wals<a name="line.814"></a> |
| <span class="sourceLineNo">815</span> if (AbstractFSWALProvider.isMetaFile(wal)) {<a name="line.815"></a> |
| <span class="sourceLineNo">816</span> return false;<a name="line.816"></a> |
| <span class="sourceLineNo">817</span> }<a name="line.817"></a> |
| <span class="sourceLineNo">818</span> return ReplicationOffsetUtil.shouldReplicate(offset, wal);<a name="line.818"></a> |
| <span class="sourceLineNo">819</span> }<a name="line.819"></a> |
| <span class="sourceLineNo">820</span><a name="line.820"></a> |
| <span class="sourceLineNo">821</span> void claimQueue(ReplicationQueueId queueId) {<a name="line.821"></a> |
| <span class="sourceLineNo">822</span> claimQueue(queueId, false);<a name="line.822"></a> |
| <span class="sourceLineNo">823</span> }<a name="line.823"></a> |
| <span class="sourceLineNo">824</span><a name="line.824"></a> |
| <span class="sourceLineNo">825</span> // sorted from oldest to newest<a name="line.825"></a> |
| <span class="sourceLineNo">826</span> private PriorityQueue<Path> getWALFilesToReplicate(ServerName sourceRS, boolean syncUp,<a name="line.826"></a> |
| <span class="sourceLineNo">827</span> Map<String, ReplicationGroupOffset> offsets) throws IOException {<a name="line.827"></a> |
| <span class="sourceLineNo">828</span> List<Path> walFiles = AbstractFSWALProvider.getArchivedWALFiles(conf, sourceRS,<a name="line.828"></a> |
| <span class="sourceLineNo">829</span> URLEncoder.encode(sourceRS.toString(), StandardCharsets.UTF_8.name()));<a name="line.829"></a> |
| <span class="sourceLineNo">830</span> if (syncUp) {<a name="line.830"></a> |
| <span class="sourceLineNo">831</span> // we also need to list WALs directory for ReplicationSyncUp<a name="line.831"></a> |
| <span class="sourceLineNo">832</span> walFiles.addAll(AbstractFSWALProvider.getWALFiles(conf, sourceRS));<a name="line.832"></a> |
| <span class="sourceLineNo">833</span> }<a name="line.833"></a> |
| <span class="sourceLineNo">834</span> PriorityQueue<Path> walFilesPQ =<a name="line.834"></a> |
| <span class="sourceLineNo">835</span> new PriorityQueue<>(AbstractFSWALProvider.TIMESTAMP_COMPARATOR);<a name="line.835"></a> |
| <span class="sourceLineNo">836</span> // sort the wal files and also filter out replicated files<a name="line.836"></a> |
| <span class="sourceLineNo">837</span> for (Path file : walFiles) {<a name="line.837"></a> |
| <span class="sourceLineNo">838</span> String walGroupId = AbstractFSWALProvider.getWALPrefixFromWALName(file.getName());<a name="line.838"></a> |
| <span class="sourceLineNo">839</span> ReplicationGroupOffset groupOffset = offsets.get(walGroupId);<a name="line.839"></a> |
| <span class="sourceLineNo">840</span> if (shouldReplicate(groupOffset, file.getName())) {<a name="line.840"></a> |
| <span class="sourceLineNo">841</span> walFilesPQ.add(file);<a name="line.841"></a> |
| <span class="sourceLineNo">842</span> } else {<a name="line.842"></a> |
| <span class="sourceLineNo">843</span> LOG.debug("Skip enqueuing log {} because it is before the start offset {}", file.getName(),<a name="line.843"></a> |
| <span class="sourceLineNo">844</span> groupOffset);<a name="line.844"></a> |
| <span class="sourceLineNo">845</span> }<a name="line.845"></a> |
| <span class="sourceLineNo">846</span> }<a name="line.846"></a> |
| <span class="sourceLineNo">847</span> return walFilesPQ;<a name="line.847"></a> |
| <span class="sourceLineNo">848</span> }<a name="line.848"></a> |
| <span class="sourceLineNo">849</span><a name="line.849"></a> |
| <span class="sourceLineNo">850</span> private void addRecoveredSource(ReplicationSourceInterface src, ReplicationPeerImpl oldPeer,<a name="line.850"></a> |
| <span class="sourceLineNo">851</span> ReplicationQueueId claimedQueueId, PriorityQueue<Path> walFiles) {<a name="line.851"></a> |
| <span class="sourceLineNo">852</span> ReplicationPeerImpl peer = replicationPeers.getPeer(src.getPeerId());<a name="line.852"></a> |
| <span class="sourceLineNo">853</span> if (peer == null || peer != oldPeer) {<a name="line.853"></a> |
| <span class="sourceLineNo">854</span> src.terminate("Recovered queue doesn't belong to any current peer");<a name="line.854"></a> |
| <span class="sourceLineNo">855</span> deleteQueue(claimedQueueId);<a name="line.855"></a> |
| <span class="sourceLineNo">856</span> return;<a name="line.856"></a> |
| <span class="sourceLineNo">857</span> }<a name="line.857"></a> |
| <span class="sourceLineNo">858</span> // Do not setup recovered queue if a sync replication peer is in STANDBY state, or is<a name="line.858"></a> |
| <span class="sourceLineNo">859</span> // transiting to STANDBY state. The only exception is we are in STANDBY state and<a name="line.859"></a> |
| <span class="sourceLineNo">860</span> // transiting to DA, under this state we will replay the remote WAL and they need to be<a name="line.860"></a> |
| <span class="sourceLineNo">861</span> // replicated back.<a name="line.861"></a> |
| <span class="sourceLineNo">862</span> if (peer.getPeerConfig().isSyncReplication()) {<a name="line.862"></a> |
| <span class="sourceLineNo">863</span> Pair<SyncReplicationState, SyncReplicationState> stateAndNewState =<a name="line.863"></a> |
| <span class="sourceLineNo">864</span> peer.getSyncReplicationStateAndNewState();<a name="line.864"></a> |
| <span class="sourceLineNo">865</span> if (<a name="line.865"></a> |
| <span class="sourceLineNo">866</span> (stateAndNewState.getFirst().equals(SyncReplicationState.STANDBY)<a name="line.866"></a> |
| <span class="sourceLineNo">867</span> && stateAndNewState.getSecond().equals(SyncReplicationState.NONE))<a name="line.867"></a> |
| <span class="sourceLineNo">868</span> || stateAndNewState.getSecond().equals(SyncReplicationState.STANDBY)<a name="line.868"></a> |
| <span class="sourceLineNo">869</span> ) {<a name="line.869"></a> |
| <span class="sourceLineNo">870</span> src.terminate("Sync replication peer is in STANDBY state");<a name="line.870"></a> |
| <span class="sourceLineNo">871</span> deleteQueue(claimedQueueId);<a name="line.871"></a> |
| <span class="sourceLineNo">872</span> return;<a name="line.872"></a> |
| <span class="sourceLineNo">873</span> }<a name="line.873"></a> |
| <span class="sourceLineNo">874</span> }<a name="line.874"></a> |
| <span class="sourceLineNo">875</span> // track sources in walsByIdRecoveredQueues<a name="line.875"></a> |
| <span class="sourceLineNo">876</span> Map<String, NavigableSet<Path>> walsByGroup = new HashMap<>();<a name="line.876"></a> |
| <span class="sourceLineNo">877</span> walsByIdRecoveredQueues.put(claimedQueueId, walsByGroup);<a name="line.877"></a> |
| <span class="sourceLineNo">878</span> for (Path wal : walFiles) {<a name="line.878"></a> |
| <span class="sourceLineNo">879</span> String walPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(wal.getName());<a name="line.879"></a> |
| <span class="sourceLineNo">880</span> NavigableSet<Path> wals = walsByGroup.get(walPrefix);<a name="line.880"></a> |
| <span class="sourceLineNo">881</span> if (wals == null) {<a name="line.881"></a> |
| <span class="sourceLineNo">882</span> wals = new TreeSet<>(AbstractFSWALProvider.TIMESTAMP_COMPARATOR);<a name="line.882"></a> |
| <span class="sourceLineNo">883</span> walsByGroup.put(walPrefix, wals);<a name="line.883"></a> |
| <span class="sourceLineNo">884</span> }<a name="line.884"></a> |
| <span class="sourceLineNo">885</span> wals.add(wal);<a name="line.885"></a> |
| <span class="sourceLineNo">886</span> }<a name="line.886"></a> |
| <span class="sourceLineNo">887</span> oldsources.add(src);<a name="line.887"></a> |
| <span class="sourceLineNo">888</span> LOG.info("Added source for recovered queue {}, number of wals to replicate: {}", claimedQueueId,<a name="line.888"></a> |
| <span class="sourceLineNo">889</span> walFiles.size());<a name="line.889"></a> |
| <span class="sourceLineNo">890</span> for (Path wal : walFiles) {<a name="line.890"></a> |
| <span class="sourceLineNo">891</span> LOG.debug("Enqueueing log {} from recovered queue for source: {}", wal, claimedQueueId);<a name="line.891"></a> |
| <span class="sourceLineNo">892</span> src.enqueueLog(wal);<a name="line.892"></a> |
| <span class="sourceLineNo">893</span> }<a name="line.893"></a> |
| <span class="sourceLineNo">894</span> src.startup();<a name="line.894"></a> |
| <span class="sourceLineNo">895</span> }<a name="line.895"></a> |
| <span class="sourceLineNo">896</span><a name="line.896"></a> |
| <span class="sourceLineNo">897</span> /**<a name="line.897"></a> |
| <span class="sourceLineNo">898</span> * Claim a replication queue.<a name="line.898"></a> |
| <span class="sourceLineNo">899</span> * <p/><a name="line.899"></a> |
| <span class="sourceLineNo">900</span> * We add a flag to indicate whether we are called by ReplicationSyncUp. For normal claiming queue<a name="line.900"></a> |
| <span class="sourceLineNo">901</span> * operation, we are the last step of a SCP, so we can assume that all the WAL files are under<a name="line.901"></a> |
| <span class="sourceLineNo">902</span> * oldWALs directory. But for ReplicationSyncUp, we may want to claim the replication queue for a<a name="line.902"></a> |
| <span class="sourceLineNo">903</span> * region server which has not been processed by SCP yet, so we still need to look at its WALs<a name="line.903"></a> |
| <span class="sourceLineNo">904</span> * directory.<a name="line.904"></a> |
| <span class="sourceLineNo">905</span> * @param queueId the replication queue id we want to claim<a name="line.905"></a> |
| <span class="sourceLineNo">906</span> * @param syncUp whether we are called by ReplicationSyncUp<a name="line.906"></a> |
| <span class="sourceLineNo">907</span> */<a name="line.907"></a> |
| <span class="sourceLineNo">908</span> void claimQueue(ReplicationQueueId queueId, boolean syncUp) {<a name="line.908"></a> |
| <span class="sourceLineNo">909</span> // Wait a bit before transferring the queues, we may be shutting down.<a name="line.909"></a> |
| <span class="sourceLineNo">910</span> // This sleep may not be enough in some cases.<a name="line.910"></a> |
| <span class="sourceLineNo">911</span> try {<a name="line.911"></a> |
| <span class="sourceLineNo">912</span> Thread.sleep(sleepBeforeFailover<a name="line.912"></a> |
| <span class="sourceLineNo">913</span> + (long) (ThreadLocalRandom.current().nextFloat() * sleepBeforeFailover));<a name="line.913"></a> |
| <span class="sourceLineNo">914</span> } catch (InterruptedException e) {<a name="line.914"></a> |
| <span class="sourceLineNo">915</span> LOG.warn("Interrupted while waiting before transferring a queue.");<a name="line.915"></a> |
| <span class="sourceLineNo">916</span> Thread.currentThread().interrupt();<a name="line.916"></a> |
| <span class="sourceLineNo">917</span> }<a name="line.917"></a> |
| <span class="sourceLineNo">918</span> // We try to lock that rs' queue directory<a name="line.918"></a> |
| <span class="sourceLineNo">919</span> if (server.isStopped()) {<a name="line.919"></a> |
| <span class="sourceLineNo">920</span> LOG.info("Not transferring queue since we are shutting down");<a name="line.920"></a> |
| <span class="sourceLineNo">921</span> return;<a name="line.921"></a> |
| <span class="sourceLineNo">922</span> }<a name="line.922"></a> |
| <span class="sourceLineNo">923</span> // After claim the queues from dead region server, we will skip to start the<a name="line.923"></a> |
| <span class="sourceLineNo">924</span> // RecoveredReplicationSource if the peer has been removed. but there's possible that remove a<a name="line.924"></a> |
| <span class="sourceLineNo">925</span> // peer with peerId = 2 and add a peer with peerId = 2 again during failover. So we need to get<a name="line.925"></a> |
| <span class="sourceLineNo">926</span> // a copy of the replication peer first to decide whether we should start the<a name="line.926"></a> |
| <span class="sourceLineNo">927</span> // RecoveredReplicationSource. If the latest peer is not the old peer, we should also skip to<a name="line.927"></a> |
| <span class="sourceLineNo">928</span> // start the RecoveredReplicationSource, Otherwise the rs will abort (See HBASE-20475).<a name="line.928"></a> |
| <span class="sourceLineNo">929</span> String peerId = queueId.getPeerId();<a name="line.929"></a> |
| <span class="sourceLineNo">930</span> ReplicationPeerImpl oldPeer = replicationPeers.getPeer(peerId);<a name="line.930"></a> |
| <span class="sourceLineNo">931</span> if (oldPeer == null) {<a name="line.931"></a> |
| <span class="sourceLineNo">932</span> LOG.info("Not transferring queue since the replication peer {} for queue {} does not exist",<a name="line.932"></a> |
| <span class="sourceLineNo">933</span> peerId, queueId);<a name="line.933"></a> |
| <span class="sourceLineNo">934</span> return;<a name="line.934"></a> |
| <span class="sourceLineNo">935</span> }<a name="line.935"></a> |
| <span class="sourceLineNo">936</span> Map<String, ReplicationGroupOffset> offsets;<a name="line.936"></a> |
| <span class="sourceLineNo">937</span> try {<a name="line.937"></a> |
| <span class="sourceLineNo">938</span> offsets = queueStorage.claimQueue(queueId, server.getServerName());<a name="line.938"></a> |
| <span class="sourceLineNo">939</span> } catch (ReplicationException e) {<a name="line.939"></a> |
| <span class="sourceLineNo">940</span> LOG.error("ReplicationException: cannot claim dead region ({})'s replication queue",<a name="line.940"></a> |
| <span class="sourceLineNo">941</span> queueId.getServerName(), e);<a name="line.941"></a> |
| <span class="sourceLineNo">942</span> server.abort("Failed to claim queue from dead regionserver.", e);<a name="line.942"></a> |
| <span class="sourceLineNo">943</span> return;<a name="line.943"></a> |
| <span class="sourceLineNo">944</span> }<a name="line.944"></a> |
| <span class="sourceLineNo">945</span> if (offsets.isEmpty()) {<a name="line.945"></a> |
| <span class="sourceLineNo">946</span> // someone else claimed the queue<a name="line.946"></a> |
| <span class="sourceLineNo">947</span> return;<a name="line.947"></a> |
| <span class="sourceLineNo">948</span> }<a name="line.948"></a> |
| <span class="sourceLineNo">949</span> ServerName sourceRS = queueId.getServerWALsBelongTo();<a name="line.949"></a> |
| <span class="sourceLineNo">950</span> ReplicationQueueId claimedQueueId = queueId.claim(server.getServerName());<a name="line.950"></a> |
| <span class="sourceLineNo">951</span> ReplicationPeerImpl peer = replicationPeers.getPeer(peerId);<a name="line.951"></a> |
| <span class="sourceLineNo">952</span> if (peer == null || peer != oldPeer) {<a name="line.952"></a> |
| <span class="sourceLineNo">953</span> LOG.warn("Skipping failover for peer {} of node {}, peer is null", peerId, sourceRS);<a name="line.953"></a> |
| <span class="sourceLineNo">954</span> deleteQueue(claimedQueueId);<a name="line.954"></a> |
| <span class="sourceLineNo">955</span> return;<a name="line.955"></a> |
| <span class="sourceLineNo">956</span> }<a name="line.956"></a> |
| <span class="sourceLineNo">957</span> ReplicationSourceInterface src;<a name="line.957"></a> |
| <span class="sourceLineNo">958</span> try {<a name="line.958"></a> |
| <span class="sourceLineNo">959</span> src =<a name="line.959"></a> |
| <span class="sourceLineNo">960</span> createSource(new ReplicationQueueData(claimedQueueId, ImmutableMap.copyOf(offsets)), peer);<a name="line.960"></a> |
| <span class="sourceLineNo">961</span> } catch (IOException e) {<a name="line.961"></a> |
| <span class="sourceLineNo">962</span> LOG.error("Can not create replication source for peer {} and queue {}", peerId,<a name="line.962"></a> |
| <span class="sourceLineNo">963</span> claimedQueueId, e);<a name="line.963"></a> |
| <span class="sourceLineNo">964</span> server.abort("Failed to create replication source after claiming queue.", e);<a name="line.964"></a> |
| <span class="sourceLineNo">965</span> return;<a name="line.965"></a> |
| <span class="sourceLineNo">966</span> }<a name="line.966"></a> |
| <span class="sourceLineNo">967</span> PriorityQueue<Path> walFiles;<a name="line.967"></a> |
| <span class="sourceLineNo">968</span> try {<a name="line.968"></a> |
| <span class="sourceLineNo">969</span> walFiles = getWALFilesToReplicate(sourceRS, syncUp, offsets);<a name="line.969"></a> |
| <span class="sourceLineNo">970</span> } catch (IOException e) {<a name="line.970"></a> |
| <span class="sourceLineNo">971</span> LOG.error("Can not list wal files for peer {} and queue {}", peerId, queueId, e);<a name="line.971"></a> |
| <span class="sourceLineNo">972</span> server.abort("Can not list wal files after claiming queue.", e);<a name="line.972"></a> |
| <span class="sourceLineNo">973</span> return;<a name="line.973"></a> |
| <span class="sourceLineNo">974</span> }<a name="line.974"></a> |
| <span class="sourceLineNo">975</span> // synchronized on oldsources to avoid adding recovered source for the to-be-removed peer<a name="line.975"></a> |
| <span class="sourceLineNo">976</span> synchronized (oldsources) {<a name="line.976"></a> |
| <span class="sourceLineNo">977</span> addRecoveredSource(src, oldPeer, claimedQueueId, walFiles);<a name="line.977"></a> |
| <span class="sourceLineNo">978</span> }<a name="line.978"></a> |
| <span class="sourceLineNo">979</span> }<a name="line.979"></a> |
| <span class="sourceLineNo">980</span><a name="line.980"></a> |
| <span class="sourceLineNo">981</span> /**<a name="line.981"></a> |
| <span class="sourceLineNo">982</span> * Terminate the replication on this region server<a name="line.982"></a> |
| <span class="sourceLineNo">983</span> */<a name="line.983"></a> |
| <span class="sourceLineNo">984</span> public void join() {<a name="line.984"></a> |
| <span class="sourceLineNo">985</span> this.executor.shutdown();<a name="line.985"></a> |
| <span class="sourceLineNo">986</span> for (ReplicationSourceInterface source : this.sources.values()) {<a name="line.986"></a> |
| <span class="sourceLineNo">987</span> source.terminate("Region server is closing");<a name="line.987"></a> |
| <span class="sourceLineNo">988</span> }<a name="line.988"></a> |
| <span class="sourceLineNo">989</span> synchronized (oldsources) {<a name="line.989"></a> |
| <span class="sourceLineNo">990</span> for (ReplicationSourceInterface source : this.oldsources) {<a name="line.990"></a> |
| <span class="sourceLineNo">991</span> source.terminate("Region server is closing");<a name="line.991"></a> |
| <span class="sourceLineNo">992</span> }<a name="line.992"></a> |
| <span class="sourceLineNo">993</span> }<a name="line.993"></a> |
| <span class="sourceLineNo">994</span> }<a name="line.994"></a> |
| <span class="sourceLineNo">995</span><a name="line.995"></a> |
| <span class="sourceLineNo">996</span> /**<a name="line.996"></a> |
| <span class="sourceLineNo">997</span> * Get a copy of the wals of the normal sources on this rs<a name="line.997"></a> |
| <span class="sourceLineNo">998</span> * @return a sorted set of wal names<a name="line.998"></a> |
| <span class="sourceLineNo">999</span> */<a name="line.999"></a> |
| <span class="sourceLineNo">1000</span> @RestrictedApi(explanation = "Should only be called in tests", link = "",<a name="line.1000"></a> |
| <span class="sourceLineNo">1001</span> allowedOnPath = ".*/src/test/.*")<a name="line.1001"></a> |
| <span class="sourceLineNo">1002</span> public Map<ReplicationQueueId, Map<String, NavigableSet<String>>> getWALs() {<a name="line.1002"></a> |
| <span class="sourceLineNo">1003</span> return Collections.unmodifiableMap(walsById);<a name="line.1003"></a> |
| <span class="sourceLineNo">1004</span> }<a name="line.1004"></a> |
| <span class="sourceLineNo">1005</span><a name="line.1005"></a> |
| <span class="sourceLineNo">1006</span> /**<a name="line.1006"></a> |
| <span class="sourceLineNo">1007</span> * Get a list of all the normal sources of this rs<a name="line.1007"></a> |
| <span class="sourceLineNo">1008</span> * @return list of all normal sources<a name="line.1008"></a> |
| <span class="sourceLineNo">1009</span> */<a name="line.1009"></a> |
| <span class="sourceLineNo">1010</span> public List<ReplicationSourceInterface> getSources() {<a name="line.1010"></a> |
| <span class="sourceLineNo">1011</span> return new ArrayList<>(this.sources.values());<a name="line.1011"></a> |
| <span class="sourceLineNo">1012</span> }<a name="line.1012"></a> |
| <span class="sourceLineNo">1013</span><a name="line.1013"></a> |
| <span class="sourceLineNo">1014</span> /**<a name="line.1014"></a> |
| <span class="sourceLineNo">1015</span> * Get a list of all the recovered sources of this rs<a name="line.1015"></a> |
| <span class="sourceLineNo">1016</span> * @return list of all recovered sources<a name="line.1016"></a> |
| <span class="sourceLineNo">1017</span> */<a name="line.1017"></a> |
| <span class="sourceLineNo">1018</span> public List<ReplicationSourceInterface> getOldSources() {<a name="line.1018"></a> |
| <span class="sourceLineNo">1019</span> return this.oldsources;<a name="line.1019"></a> |
| <span class="sourceLineNo">1020</span> }<a name="line.1020"></a> |
| <span class="sourceLineNo">1021</span><a name="line.1021"></a> |
| <span class="sourceLineNo">1022</span> /**<a name="line.1022"></a> |
| <span class="sourceLineNo">1023</span> * Get the normal source for a given peer<a name="line.1023"></a> |
| <span class="sourceLineNo">1024</span> * @return the normal source for the give peer if it exists, otherwise null.<a name="line.1024"></a> |
| <span class="sourceLineNo">1025</span> */<a name="line.1025"></a> |
| <span class="sourceLineNo">1026</span> public ReplicationSourceInterface getSource(String peerId) {<a name="line.1026"></a> |
| <span class="sourceLineNo">1027</span> return this.sources.get(peerId);<a name="line.1027"></a> |
| <span class="sourceLineNo">1028</span> }<a name="line.1028"></a> |
| <span class="sourceLineNo">1029</span><a name="line.1029"></a> |
| <span class="sourceLineNo">1030</span> int getSizeOfLatestPath() {<a name="line.1030"></a> |
| <span class="sourceLineNo">1031</span> synchronized (latestPaths) {<a name="line.1031"></a> |
| <span class="sourceLineNo">1032</span> return latestPaths.size();<a name="line.1032"></a> |
| <span class="sourceLineNo">1033</span> }<a name="line.1033"></a> |
| <span class="sourceLineNo">1034</span> }<a name="line.1034"></a> |
| <span class="sourceLineNo">1035</span><a name="line.1035"></a> |
| <span class="sourceLineNo">1036</span> Set<Path> getLastestPath() {<a name="line.1036"></a> |
| <span class="sourceLineNo">1037</span> synchronized (latestPaths) {<a name="line.1037"></a> |
| <span class="sourceLineNo">1038</span> return Sets.newHashSet(latestPaths.values());<a name="line.1038"></a> |
| <span class="sourceLineNo">1039</span> }<a name="line.1039"></a> |
| <span class="sourceLineNo">1040</span> }<a name="line.1040"></a> |
| <span class="sourceLineNo">1041</span><a name="line.1041"></a> |
| <span class="sourceLineNo">1042</span> public long getTotalBufferUsed() {<a name="line.1042"></a> |
| <span class="sourceLineNo">1043</span> return totalBufferUsed.get();<a name="line.1043"></a> |
| <span class="sourceLineNo">1044</span> }<a name="line.1044"></a> |
| <span class="sourceLineNo">1045</span><a name="line.1045"></a> |
| <span class="sourceLineNo">1046</span> /**<a name="line.1046"></a> |
| <span class="sourceLineNo">1047</span> * Returns the maximum size in bytes of edits held in memory which are pending replication across<a name="line.1047"></a> |
| <span class="sourceLineNo">1048</span> * all sources inside this RegionServer.<a name="line.1048"></a> |
| <span class="sourceLineNo">1049</span> */<a name="line.1049"></a> |
| <span class="sourceLineNo">1050</span> public long getTotalBufferLimit() {<a name="line.1050"></a> |
| <span class="sourceLineNo">1051</span> return totalBufferLimit;<a name="line.1051"></a> |
| <span class="sourceLineNo">1052</span> }<a name="line.1052"></a> |
| <span class="sourceLineNo">1053</span><a name="line.1053"></a> |
| <span class="sourceLineNo">1054</span> /**<a name="line.1054"></a> |
| <span class="sourceLineNo">1055</span> * Get the directory where wals are archived<a name="line.1055"></a> |
| <span class="sourceLineNo">1056</span> * @return the directory where wals are archived<a name="line.1056"></a> |
| <span class="sourceLineNo">1057</span> */<a name="line.1057"></a> |
| <span class="sourceLineNo">1058</span> public Path getOldLogDir() {<a name="line.1058"></a> |
| <span class="sourceLineNo">1059</span> return this.oldLogDir;<a name="line.1059"></a> |
| <span class="sourceLineNo">1060</span> }<a name="line.1060"></a> |
| <span class="sourceLineNo">1061</span><a name="line.1061"></a> |
| <span class="sourceLineNo">1062</span> /**<a name="line.1062"></a> |
| <span class="sourceLineNo">1063</span> * Get the directory where wals are stored by their RSs<a name="line.1063"></a> |
| <span class="sourceLineNo">1064</span> * @return the directory where wals are stored by their RSs<a name="line.1064"></a> |
| <span class="sourceLineNo">1065</span> */<a name="line.1065"></a> |
| <span class="sourceLineNo">1066</span> public Path getLogDir() {<a name="line.1066"></a> |
| <span class="sourceLineNo">1067</span> return this.logDir;<a name="line.1067"></a> |
| <span class="sourceLineNo">1068</span> }<a name="line.1068"></a> |
| <span class="sourceLineNo">1069</span><a name="line.1069"></a> |
| <span class="sourceLineNo">1070</span> /**<a name="line.1070"></a> |
| <span class="sourceLineNo">1071</span> * Get the handle on the local file system<a name="line.1071"></a> |
| <span class="sourceLineNo">1072</span> * @return Handle on the local file system<a name="line.1072"></a> |
| <span class="sourceLineNo">1073</span> */<a name="line.1073"></a> |
| <span class="sourceLineNo">1074</span> public FileSystem getFs() {<a name="line.1074"></a> |
| <span class="sourceLineNo">1075</span> return this.fs;<a name="line.1075"></a> |
| <span class="sourceLineNo">1076</span> }<a name="line.1076"></a> |
| <span class="sourceLineNo">1077</span><a name="line.1077"></a> |
| <span class="sourceLineNo">1078</span> /**<a name="line.1078"></a> |
| <span class="sourceLineNo">1079</span> * Get the ReplicationPeers used by this ReplicationSourceManager<a name="line.1079"></a> |
| <span class="sourceLineNo">1080</span> * @return the ReplicationPeers used by this ReplicationSourceManager<a name="line.1080"></a> |
| <span class="sourceLineNo">1081</span> */<a name="line.1081"></a> |
| <span class="sourceLineNo">1082</span> public ReplicationPeers getReplicationPeers() {<a name="line.1082"></a> |
| <span class="sourceLineNo">1083</span> return this.replicationPeers;<a name="line.1083"></a> |
| <span class="sourceLineNo">1084</span> }<a name="line.1084"></a> |
| <span class="sourceLineNo">1085</span><a name="line.1085"></a> |
| <span class="sourceLineNo">1086</span> /**<a name="line.1086"></a> |
| <span class="sourceLineNo">1087</span> * Get a string representation of all the sources' metrics<a name="line.1087"></a> |
| <span class="sourceLineNo">1088</span> */<a name="line.1088"></a> |
| <span class="sourceLineNo">1089</span> public String getStats() {<a name="line.1089"></a> |
| <span class="sourceLineNo">1090</span> StringBuilder stats = new StringBuilder();<a name="line.1090"></a> |
| <span class="sourceLineNo">1091</span> // Print stats that apply across all Replication Sources<a name="line.1091"></a> |
| <span class="sourceLineNo">1092</span> stats.append("Global stats: ");<a name="line.1092"></a> |
| <span class="sourceLineNo">1093</span> stats.append("WAL Edits Buffer Used=").append(getTotalBufferUsed()).append("B, Limit=")<a name="line.1093"></a> |
| <span class="sourceLineNo">1094</span> .append(getTotalBufferLimit()).append("B\n");<a name="line.1094"></a> |
| <span class="sourceLineNo">1095</span> for (ReplicationSourceInterface source : this.sources.values()) {<a name="line.1095"></a> |
| <span class="sourceLineNo">1096</span> stats.append("Normal source for cluster " + source.getPeerId() + ": ");<a name="line.1096"></a> |
| <span class="sourceLineNo">1097</span> stats.append(source.getStats() + "\n");<a name="line.1097"></a> |
| <span class="sourceLineNo">1098</span> }<a name="line.1098"></a> |
| <span class="sourceLineNo">1099</span> for (ReplicationSourceInterface oldSource : oldsources) {<a name="line.1099"></a> |
| <span class="sourceLineNo">1100</span> stats.append("Recovered source for cluster/machine(s) " + oldSource.getPeerId() + ": ");<a name="line.1100"></a> |
| <span class="sourceLineNo">1101</span> stats.append(oldSource.getStats() + "\n");<a name="line.1101"></a> |
| <span class="sourceLineNo">1102</span> }<a name="line.1102"></a> |
| <span class="sourceLineNo">1103</span> return stats.toString();<a name="line.1103"></a> |
| <span class="sourceLineNo">1104</span> }<a name="line.1104"></a> |
| <span class="sourceLineNo">1105</span><a name="line.1105"></a> |
| <span class="sourceLineNo">1106</span> public void addHFileRefs(TableName tableName, byte[] family, List<Pair<Path, Path>> pairs)<a name="line.1106"></a> |
| <span class="sourceLineNo">1107</span> throws IOException {<a name="line.1107"></a> |
| <span class="sourceLineNo">1108</span> for (ReplicationSourceInterface source : this.sources.values()) {<a name="line.1108"></a> |
| <span class="sourceLineNo">1109</span> throwIOExceptionWhenFail(() -> source.addHFileRefs(tableName, family, pairs));<a name="line.1109"></a> |
| <span class="sourceLineNo">1110</span> }<a name="line.1110"></a> |
| <span class="sourceLineNo">1111</span> }<a name="line.1111"></a> |
| <span class="sourceLineNo">1112</span><a name="line.1112"></a> |
| <span class="sourceLineNo">1113</span> public void cleanUpHFileRefs(String peerId, List<String> files) {<a name="line.1113"></a> |
| <span class="sourceLineNo">1114</span> interruptOrAbortWhenFail(() -> this.queueStorage.removeHFileRefs(peerId, files));<a name="line.1114"></a> |
| <span class="sourceLineNo">1115</span> }<a name="line.1115"></a> |
| <span class="sourceLineNo">1116</span><a name="line.1116"></a> |
| <span class="sourceLineNo">1117</span> int activeFailoverTaskCount() {<a name="line.1117"></a> |
| <span class="sourceLineNo">1118</span> return executor.getActiveCount();<a name="line.1118"></a> |
| <span class="sourceLineNo">1119</span> }<a name="line.1119"></a> |
| <span class="sourceLineNo">1120</span><a name="line.1120"></a> |
| <span class="sourceLineNo">1121</span> MetricsReplicationGlobalSourceSource getGlobalMetrics() {<a name="line.1121"></a> |
| <span class="sourceLineNo">1122</span> return this.globalMetrics;<a name="line.1122"></a> |
| <span class="sourceLineNo">1123</span> }<a name="line.1123"></a> |
| <span class="sourceLineNo">1124</span><a name="line.1124"></a> |
| <span class="sourceLineNo">1125</span> ReplicationQueueStorage getQueueStorage() {<a name="line.1125"></a> |
| <span class="sourceLineNo">1126</span> return queueStorage;<a name="line.1126"></a> |
| <span class="sourceLineNo">1127</span> }<a name="line.1127"></a> |
| <span class="sourceLineNo">1128</span><a name="line.1128"></a> |
| <span class="sourceLineNo">1129</span> /**<a name="line.1129"></a> |
| <span class="sourceLineNo">1130</span> * Acquire the buffer quota for {@link Entry} which is added to {@link WALEntryBatch}.<a name="line.1130"></a> |
| <span class="sourceLineNo">1131</span> * @param entry the wal entry which is added to {@link WALEntryBatch} and should acquire buffer<a name="line.1131"></a> |
| <span class="sourceLineNo">1132</span> * quota.<a name="line.1132"></a> |
| <span class="sourceLineNo">1133</span> * @return true if we should clear buffer and push all<a name="line.1133"></a> |
| <span class="sourceLineNo">1134</span> */<a name="line.1134"></a> |
| <span class="sourceLineNo">1135</span> boolean acquireWALEntryBufferQuota(WALEntryBatch walEntryBatch, Entry entry) {<a name="line.1135"></a> |
| <span class="sourceLineNo">1136</span> long entrySize = walEntryBatch.incrementUsedBufferSize(entry);<a name="line.1136"></a> |
| <span class="sourceLineNo">1137</span> return this.acquireBufferQuota(entrySize);<a name="line.1137"></a> |
| <span class="sourceLineNo">1138</span> }<a name="line.1138"></a> |
| <span class="sourceLineNo">1139</span><a name="line.1139"></a> |
| <span class="sourceLineNo">1140</span> /**<a name="line.1140"></a> |
| <span class="sourceLineNo">1141</span> * To release the buffer quota of {@link WALEntryBatch} which acquired by<a name="line.1141"></a> |
| <span class="sourceLineNo">1142</span> * {@link ReplicationSourceManager#acquireWALEntryBufferQuota}.<a name="line.1142"></a> |
| <span class="sourceLineNo">1143</span> * @return the released buffer quota size.<a name="line.1143"></a> |
| <span class="sourceLineNo">1144</span> */<a name="line.1144"></a> |
| <span class="sourceLineNo">1145</span> long releaseWALEntryBatchBufferQuota(WALEntryBatch walEntryBatch) {<a name="line.1145"></a> |
| <span class="sourceLineNo">1146</span> long usedBufferSize = walEntryBatch.getUsedBufferSize();<a name="line.1146"></a> |
| <span class="sourceLineNo">1147</span> if (usedBufferSize > 0) {<a name="line.1147"></a> |
| <span class="sourceLineNo">1148</span> this.releaseBufferQuota(usedBufferSize);<a name="line.1148"></a> |
| <span class="sourceLineNo">1149</span> }<a name="line.1149"></a> |
| <span class="sourceLineNo">1150</span> return usedBufferSize;<a name="line.1150"></a> |
| <span class="sourceLineNo">1151</span> }<a name="line.1151"></a> |
| <span class="sourceLineNo">1152</span><a name="line.1152"></a> |
| <span class="sourceLineNo">1153</span> /**<a name="line.1153"></a> |
| <span class="sourceLineNo">1154</span> * Add the size to {@link ReplicationSourceManager#totalBufferUsed} and check if it exceeds<a name="line.1154"></a> |
| <span class="sourceLineNo">1155</span> * {@link ReplicationSourceManager#totalBufferLimit}.<a name="line.1155"></a> |
| <span class="sourceLineNo">1156</span> * @return true if {@link ReplicationSourceManager#totalBufferUsed} exceeds<a name="line.1156"></a> |
| <span class="sourceLineNo">1157</span> * {@link ReplicationSourceManager#totalBufferLimit},we should stop increase buffer and<a name="line.1157"></a> |
| <span class="sourceLineNo">1158</span> * ship all.<a name="line.1158"></a> |
| <span class="sourceLineNo">1159</span> */<a name="line.1159"></a> |
| <span class="sourceLineNo">1160</span> boolean acquireBufferQuota(long size) {<a name="line.1160"></a> |
| <span class="sourceLineNo">1161</span> if (size < 0) {<a name="line.1161"></a> |
| <span class="sourceLineNo">1162</span> throw new IllegalArgumentException("size should not less than 0");<a name="line.1162"></a> |
| <span class="sourceLineNo">1163</span> }<a name="line.1163"></a> |
| <span class="sourceLineNo">1164</span> long newBufferUsed = addTotalBufferUsed(size);<a name="line.1164"></a> |
| <span class="sourceLineNo">1165</span> return newBufferUsed >= totalBufferLimit;<a name="line.1165"></a> |
| <span class="sourceLineNo">1166</span> }<a name="line.1166"></a> |
| <span class="sourceLineNo">1167</span><a name="line.1167"></a> |
| <span class="sourceLineNo">1168</span> /**<a name="line.1168"></a> |
| <span class="sourceLineNo">1169</span> * To release the buffer quota which acquired by<a name="line.1169"></a> |
| <span class="sourceLineNo">1170</span> * {@link ReplicationSourceManager#acquireBufferQuota}.<a name="line.1170"></a> |
| <span class="sourceLineNo">1171</span> */<a name="line.1171"></a> |
| <span class="sourceLineNo">1172</span> void releaseBufferQuota(long size) {<a name="line.1172"></a> |
| <span class="sourceLineNo">1173</span> if (size < 0) {<a name="line.1173"></a> |
| <span class="sourceLineNo">1174</span> throw new IllegalArgumentException("size should not less than 0");<a name="line.1174"></a> |
| <span class="sourceLineNo">1175</span> }<a name="line.1175"></a> |
| <span class="sourceLineNo">1176</span> addTotalBufferUsed(-size);<a name="line.1176"></a> |
| <span class="sourceLineNo">1177</span> }<a name="line.1177"></a> |
| <span class="sourceLineNo">1178</span><a name="line.1178"></a> |
| <span class="sourceLineNo">1179</span> private long addTotalBufferUsed(long size) {<a name="line.1179"></a> |
| <span class="sourceLineNo">1180</span> if (size == 0) {<a name="line.1180"></a> |
| <span class="sourceLineNo">1181</span> return totalBufferUsed.get();<a name="line.1181"></a> |
| <span class="sourceLineNo">1182</span> }<a name="line.1182"></a> |
| <span class="sourceLineNo">1183</span> long newBufferUsed = totalBufferUsed.addAndGet(size);<a name="line.1183"></a> |
| <span class="sourceLineNo">1184</span> // Record the new buffer usage<a name="line.1184"></a> |
| <span class="sourceLineNo">1185</span> this.globalMetrics.setWALReaderEditsBufferBytes(newBufferUsed);<a name="line.1185"></a> |
| <span class="sourceLineNo">1186</span> return newBufferUsed;<a name="line.1186"></a> |
| <span class="sourceLineNo">1187</span> }<a name="line.1187"></a> |
| <span class="sourceLineNo">1188</span><a name="line.1188"></a> |
| <span class="sourceLineNo">1189</span> /**<a name="line.1189"></a> |
| <span class="sourceLineNo">1190</span> * Check if {@link ReplicationSourceManager#totalBufferUsed} exceeds<a name="line.1190"></a> |
| <span class="sourceLineNo">1191</span> * {@link ReplicationSourceManager#totalBufferLimit} for peer.<a name="line.1191"></a> |
| <span class="sourceLineNo">1192</span> * @return true if {@link ReplicationSourceManager#totalBufferUsed} not more than<a name="line.1192"></a> |
| <span class="sourceLineNo">1193</span> * {@link ReplicationSourceManager#totalBufferLimit}.<a name="line.1193"></a> |
| <span class="sourceLineNo">1194</span> */<a name="line.1194"></a> |
| <span class="sourceLineNo">1195</span> boolean checkBufferQuota(String peerId) {<a name="line.1195"></a> |
| <span class="sourceLineNo">1196</span> // try not to go over total quota<a name="line.1196"></a> |
| <span class="sourceLineNo">1197</span> if (totalBufferUsed.get() > totalBufferLimit) {<a name="line.1197"></a> |
| <span class="sourceLineNo">1198</span> LOG.warn("peer={}, can't read more edits from WAL as buffer usage {}B exceeds limit {}B",<a name="line.1198"></a> |
| <span class="sourceLineNo">1199</span> peerId, totalBufferUsed.get(), totalBufferLimit);<a name="line.1199"></a> |
| <span class="sourceLineNo">1200</span> return false;<a name="line.1200"></a> |
| <span class="sourceLineNo">1201</span> }<a name="line.1201"></a> |
| <span class="sourceLineNo">1202</span> return true;<a name="line.1202"></a> |
| <span class="sourceLineNo">1203</span> }<a name="line.1203"></a> |
| <span class="sourceLineNo">1204</span>}<a name="line.1204"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
