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From git-site-r...@apache.org
Subject [01/51] [partial] hbase-site git commit: Published site at .
Date Tue, 28 Nov 2017 15:17:45 GMT
Repository: hbase-site
Updated Branches:
  refs/heads/asf-site 9f95f7932 -> b9722a17b


http://git-wip-us.apache.org/repos/asf/hbase-site/blob/b9722a17/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.NodeFailoverWorker.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.NodeFailoverWorker.html b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.NodeFailoverWorker.html
index c552d8a..a792ab2 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.NodeFailoverWorker.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/replication/regionserver/ReplicationSourceManager.NodeFailoverWorker.html
@@ -48,922 +48,928 @@
 <span class="sourceLineNo">040</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.40"></a>
 <span class="sourceLineNo">041</span>import java.util.concurrent.TimeUnit;<a name="line.41"></a>
 <span class="sourceLineNo">042</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.42"></a>
-<span class="sourceLineNo">043</span><a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.commons.logging.Log;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.commons.logging.LogFactory;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.conf.Configuration;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.fs.FileSystem;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.fs.Path;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.HConstants;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.MetaTableAccessor;<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.TableDescriptors;<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.yetus.audience.InterfaceAudience;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.replication.ReplicationEndpoint;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.replication.ReplicationListener;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.replication.ReplicationPeer;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.replication.ReplicationPeers;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.replication.ReplicationQueueInfo;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.replication.ReplicationQueues;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.replication.ReplicationTracker;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.70"></a>
-<span class="sourceLineNo">071</span><a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.shaded.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.73"></a>
-<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span>/**<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * This class is responsible to manage all the replication<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * sources. There are two classes of sources:<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * &lt;ul&gt;<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * &lt;li&gt; Normal sources are persistent and one per peer cluster&lt;/li&gt;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * &lt;li&gt; Old sources are recovered from a failed region server and our<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * only goal is to finish replicating the WAL queue it had up in ZK&lt;/li&gt;<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * &lt;/ul&gt;<a name="line.82"></a>
-<span class="sourceLineNo">083</span> *<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * When a region server dies, this class uses a watcher to get notified and it<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * tries to grab a lock in order to transfer all the queues in a local<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * old source.<a name="line.86"></a>
-<span class="sourceLineNo">087</span> *<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * This class implements the ReplicationListener interface so that it can track changes in<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * replication state.<a name="line.89"></a>
-<span class="sourceLineNo">090</span> */<a name="line.90"></a>
-<span class="sourceLineNo">091</span>@InterfaceAudience.Private<a name="line.91"></a>
-<span class="sourceLineNo">092</span>public class ReplicationSourceManager implements ReplicationListener {<a name="line.92"></a>
-<span class="sourceLineNo">093</span>  private static final Log LOG =<a name="line.93"></a>
-<span class="sourceLineNo">094</span>      LogFactory.getLog(ReplicationSourceManager.class);<a name="line.94"></a>
-<span class="sourceLineNo">095</span>  // List of all the sources that read this RS's logs<a name="line.95"></a>
-<span class="sourceLineNo">096</span>  private final List&lt;ReplicationSourceInterface&gt; sources;<a name="line.96"></a>
-<span class="sourceLineNo">097</span>  // List of all the sources we got from died RSs<a name="line.97"></a>
-<span class="sourceLineNo">098</span>  private final List&lt;ReplicationSourceInterface&gt; oldsources;<a name="line.98"></a>
-<span class="sourceLineNo">099</span>  private final ReplicationQueues replicationQueues;<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  private final ReplicationTracker replicationTracker;<a name="line.100"></a>
-<span class="sourceLineNo">101</span>  private final ReplicationPeers replicationPeers;<a name="line.101"></a>
-<span class="sourceLineNo">102</span>  // UUID for this cluster<a name="line.102"></a>
-<span class="sourceLineNo">103</span>  private final UUID clusterId;<a name="line.103"></a>
-<span class="sourceLineNo">104</span>  // All about stopping<a name="line.104"></a>
-<span class="sourceLineNo">105</span>  private final Server server;<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  // All logs we are currently tracking<a name="line.106"></a>
-<span class="sourceLineNo">107</span>  // Index structure of the map is: peer_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  private final Map&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsById;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>  // Logs for recovered sources we are currently tracking<a name="line.109"></a>
-<span class="sourceLineNo">110</span>  private final Map&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsByIdRecoveredQueues;<a name="line.110"></a>
-<span class="sourceLineNo">111</span>  private final Configuration conf;<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  private final FileSystem fs;<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  // The paths to the latest log of each wal group, for new coming peers<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  private Set&lt;Path&gt; latestPaths;<a name="line.114"></a>
-<span class="sourceLineNo">115</span>  // Path to the wals directories<a name="line.115"></a>
-<span class="sourceLineNo">116</span>  private final Path logDir;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>  // Path to the wal archive<a name="line.117"></a>
-<span class="sourceLineNo">118</span>  private final Path oldLogDir;<a name="line.118"></a>
-<span class="sourceLineNo">119</span>  private final WALFileLengthProvider walFileLengthProvider;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  // The number of ms that we wait before moving znodes, HBASE-3596<a name="line.120"></a>
-<span class="sourceLineNo">121</span>  private final long sleepBeforeFailover;<a name="line.121"></a>
-<span class="sourceLineNo">122</span>  // Homemade executer service for replication<a name="line.122"></a>
-<span class="sourceLineNo">123</span>  private final ThreadPoolExecutor executor;<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>  private final boolean replicationForBulkLoadDataEnabled;<a name="line.125"></a>
-<span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span>  private Connection connection;<a name="line.127"></a>
-<span class="sourceLineNo">128</span>  private long replicationWaitTime;<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>  private AtomicLong totalBufferUsed = new AtomicLong();<a name="line.130"></a>
-<span class="sourceLineNo">131</span><a name="line.131"></a>
-<span class="sourceLineNo">132</span>  /**<a name="line.132"></a>
-<span class="sourceLineNo">133</span>   * Creates a replication manager and sets the watch on all the other registered region servers<a name="line.133"></a>
-<span class="sourceLineNo">134</span>   * @param replicationQueues the interface for manipulating replication queues<a name="line.134"></a>
-<span class="sourceLineNo">135</span>   * @param replicationPeers<a name="line.135"></a>
-<span class="sourceLineNo">136</span>   * @param replicationTracker<a name="line.136"></a>
-<span class="sourceLineNo">137</span>   * @param conf the configuration to use<a name="line.137"></a>
-<span class="sourceLineNo">138</span>   * @param server the server for this region server<a name="line.138"></a>
-<span class="sourceLineNo">139</span>   * @param fs the file system to use<a name="line.139"></a>
-<span class="sourceLineNo">140</span>   * @param logDir the directory that contains all wal directories of live RSs<a name="line.140"></a>
-<span class="sourceLineNo">141</span>   * @param oldLogDir the directory where old logs are archived<a name="line.141"></a>
-<span class="sourceLineNo">142</span>   * @param clusterId<a name="line.142"></a>
-<span class="sourceLineNo">143</span>   */<a name="line.143"></a>
-<span class="sourceLineNo">144</span>  public ReplicationSourceManager(ReplicationQueues replicationQueues,<a name="line.144"></a>
-<span class="sourceLineNo">145</span>      ReplicationPeers replicationPeers, ReplicationTracker replicationTracker, Configuration conf,<a name="line.145"></a>
-<span class="sourceLineNo">146</span>      Server server, FileSystem fs, Path logDir, Path oldLogDir, UUID clusterId,<a name="line.146"></a>
-<span class="sourceLineNo">147</span>      WALFileLengthProvider walFileLengthProvider) throws IOException {<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    //CopyOnWriteArrayList is thread-safe.<a name="line.148"></a>
-<span class="sourceLineNo">149</span>    //Generally, reading is more than modifying.<a name="line.149"></a>
-<span class="sourceLineNo">150</span>    this.sources = new CopyOnWriteArrayList&lt;&gt;();<a name="line.150"></a>
-<span class="sourceLineNo">151</span>    this.replicationQueues = replicationQueues;<a name="line.151"></a>
-<span class="sourceLineNo">152</span>    this.replicationPeers = replicationPeers;<a name="line.152"></a>
-<span class="sourceLineNo">153</span>    this.replicationTracker = replicationTracker;<a name="line.153"></a>
-<span class="sourceLineNo">154</span>    this.server = server;<a name="line.154"></a>
-<span class="sourceLineNo">155</span>    this.walsById = new HashMap&lt;&gt;();<a name="line.155"></a>
-<span class="sourceLineNo">156</span>    this.walsByIdRecoveredQueues = new ConcurrentHashMap&lt;&gt;();<a name="line.156"></a>
-<span class="sourceLineNo">157</span>    this.oldsources = new CopyOnWriteArrayList&lt;&gt;();<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    this.conf = conf;<a name="line.158"></a>
-<span class="sourceLineNo">159</span>    this.fs = fs;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    this.logDir = logDir;<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    this.oldLogDir = oldLogDir;<a name="line.161"></a>
-<span class="sourceLineNo">162</span>    this.sleepBeforeFailover =<a name="line.162"></a>
-<span class="sourceLineNo">163</span>        conf.getLong("replication.sleep.before.failover", 30000); // 30 seconds<a name="line.163"></a>
-<span class="sourceLineNo">164</span>    this.clusterId = clusterId;<a name="line.164"></a>
-<span class="sourceLineNo">165</span>    this.walFileLengthProvider = walFileLengthProvider;<a name="line.165"></a>
-<span class="sourceLineNo">166</span>    this.replicationTracker.registerListener(this);<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    this.replicationPeers.getAllPeerIds();<a name="line.167"></a>
-<span class="sourceLineNo">168</span>    // It's preferable to failover 1 RS at a time, but with good zk servers<a name="line.168"></a>
-<span class="sourceLineNo">169</span>    // more could be processed at the same time.<a name="line.169"></a>
-<span class="sourceLineNo">170</span>    int nbWorkers = conf.getInt("replication.executor.workers", 1);<a name="line.170"></a>
-<span class="sourceLineNo">171</span>    // use a short 100ms sleep since this could be done inline with a RS startup<a name="line.171"></a>
-<span class="sourceLineNo">172</span>    // even if we fail, other region servers can take care of it<a name="line.172"></a>
-<span class="sourceLineNo">173</span>    this.executor = new ThreadPoolExecutor(nbWorkers, nbWorkers,<a name="line.173"></a>
-<span class="sourceLineNo">174</span>        100, TimeUnit.MILLISECONDS, new LinkedBlockingQueue&lt;&gt;());<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    ThreadFactoryBuilder tfb = new ThreadFactoryBuilder();<a name="line.175"></a>
-<span class="sourceLineNo">176</span>    tfb.setNameFormat("ReplicationExecutor-%d");<a name="line.176"></a>
-<span class="sourceLineNo">177</span>    tfb.setDaemon(true);<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    this.executor.setThreadFactory(tfb.build());<a name="line.178"></a>
-<span class="sourceLineNo">179</span>    this.latestPaths = new HashSet&lt;Path&gt;();<a name="line.179"></a>
-<span class="sourceLineNo">180</span>    replicationForBulkLoadDataEnabled =<a name="line.180"></a>
-<span class="sourceLineNo">181</span>        conf.getBoolean(HConstants.REPLICATION_BULKLOAD_ENABLE_KEY,<a name="line.181"></a>
-<span class="sourceLineNo">182</span>          HConstants.REPLICATION_BULKLOAD_ENABLE_DEFAULT);<a name="line.182"></a>
-<span class="sourceLineNo">183</span>    this.replicationWaitTime = conf.getLong(HConstants.REPLICATION_SERIALLY_WAITING_KEY,<a name="line.183"></a>
-<span class="sourceLineNo">184</span>          HConstants.REPLICATION_SERIALLY_WAITING_DEFAULT);<a name="line.184"></a>
-<span class="sourceLineNo">185</span>    connection = ConnectionFactory.createConnection(conf);<a name="line.185"></a>
-<span class="sourceLineNo">186</span>  }<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>   * Provide the id of the peer and a log key and this method will figure which<a name="line.189"></a>
-<span class="sourceLineNo">190</span>   * wal it belongs to and will log, for this region server, the current<a name="line.190"></a>
-<span class="sourceLineNo">191</span>   * position. It will also clean old logs from the queue.<a name="line.191"></a>
-<span class="sourceLineNo">192</span>   * @param log Path to the log currently being replicated from<a name="line.192"></a>
-<span class="sourceLineNo">193</span>   * replication status in zookeeper. It will also delete older entries.<a name="line.193"></a>
-<span class="sourceLineNo">194</span>   * @param id id of the peer cluster<a name="line.194"></a>
-<span class="sourceLineNo">195</span>   * @param position current location in the log<a name="line.195"></a>
-<span class="sourceLineNo">196</span>   * @param queueRecovered indicates if this queue comes from another region server<a name="line.196"></a>
-<span class="sourceLineNo">197</span>   * @param holdLogInZK if true then the log is retained in ZK<a name="line.197"></a>
-<span class="sourceLineNo">198</span>   */<a name="line.198"></a>
-<span class="sourceLineNo">199</span>  public void logPositionAndCleanOldLogs(Path log, String id, long position,<a name="line.199"></a>
-<span class="sourceLineNo">200</span>      boolean queueRecovered, boolean holdLogInZK) {<a name="line.200"></a>
-<span class="sourceLineNo">201</span>    String fileName = log.getName();<a name="line.201"></a>
-<span class="sourceLineNo">202</span>    this.replicationQueues.setLogPosition(id, fileName, position);<a name="line.202"></a>
-<span class="sourceLineNo">203</span>    if (holdLogInZK) {<a name="line.203"></a>
-<span class="sourceLineNo">204</span>     return;<a name="line.204"></a>
-<span class="sourceLineNo">205</span>    }<a name="line.205"></a>
-<span class="sourceLineNo">206</span>    cleanOldLogs(fileName, id, queueRecovered);<a name="line.206"></a>
-<span class="sourceLineNo">207</span>  }<a name="line.207"></a>
-<span class="sourceLineNo">208</span><a name="line.208"></a>
-<span class="sourceLineNo">209</span>  /**<a name="line.209"></a>
-<span class="sourceLineNo">210</span>   * Cleans a log file and all older files from ZK. Called when we are sure that a<a name="line.210"></a>
-<span class="sourceLineNo">211</span>   * log file is closed and has no more entries.<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   * @param key Path to the log<a name="line.212"></a>
-<span class="sourceLineNo">213</span>   * @param id id of the peer cluster<a name="line.213"></a>
-<span class="sourceLineNo">214</span>   * @param queueRecovered Whether this is a recovered queue<a name="line.214"></a>
-<span class="sourceLineNo">215</span>   */<a name="line.215"></a>
-<span class="sourceLineNo">216</span>  public void cleanOldLogs(String key, String id, boolean queueRecovered) {<a name="line.216"></a>
-<span class="sourceLineNo">217</span>    String logPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(key);<a name="line.217"></a>
-<span class="sourceLineNo">218</span>    if (queueRecovered) {<a name="line.218"></a>
-<span class="sourceLineNo">219</span>      SortedSet&lt;String&gt; wals = walsByIdRecoveredQueues.get(id).get(logPrefix);<a name="line.219"></a>
-<span class="sourceLineNo">220</span>      if (wals != null &amp;&amp; !wals.first().equals(key)) {<a name="line.220"></a>
-<span class="sourceLineNo">221</span>        cleanOldLogs(wals, key, id);<a name="line.221"></a>
-<span class="sourceLineNo">222</span>      }<a name="line.222"></a>
-<span class="sourceLineNo">223</span>    } else {<a name="line.223"></a>
-<span class="sourceLineNo">224</span>      synchronized (this.walsById) {<a name="line.224"></a>
-<span class="sourceLineNo">225</span>        SortedSet&lt;String&gt; wals = walsById.get(id).get(logPrefix);<a name="line.225"></a>
-<span class="sourceLineNo">226</span>        if (wals != null &amp;&amp; !wals.first().equals(key)) {<a name="line.226"></a>
-<span class="sourceLineNo">227</span>          cleanOldLogs(wals, key, id);<a name="line.227"></a>
-<span class="sourceLineNo">228</span>        }<a name="line.228"></a>
-<span class="sourceLineNo">229</span>      }<a name="line.229"></a>
-<span class="sourceLineNo">230</span>    }<a name="line.230"></a>
-<span class="sourceLineNo">231</span> }<a name="line.231"></a>
-<span class="sourceLineNo">232</span><a name="line.232"></a>
-<span class="sourceLineNo">233</span>  private void cleanOldLogs(SortedSet&lt;String&gt; wals, String key, String id) {<a name="line.233"></a>
-<span class="sourceLineNo">234</span>    SortedSet&lt;String&gt; walSet = wals.headSet(key);<a name="line.234"></a>
-<span class="sourceLineNo">235</span>    LOG.debug("Removing " + walSet.size() + " logs in the list: " + walSet);<a name="line.235"></a>
-<span class="sourceLineNo">236</span>    for (String wal : walSet) {<a name="line.236"></a>
-<span class="sourceLineNo">237</span>      this.replicationQueues.removeLog(id, wal);<a name="line.237"></a>
-<span class="sourceLineNo">238</span>    }<a name="line.238"></a>
-<span class="sourceLineNo">239</span>    walSet.clear();<a name="line.239"></a>
-<span class="sourceLineNo">240</span>  }<a name="line.240"></a>
-<span class="sourceLineNo">241</span><a name="line.241"></a>
-<span class="sourceLineNo">242</span>  /**<a name="line.242"></a>
-<span class="sourceLineNo">243</span>   * Adds a normal source per registered peer cluster and tries to process all<a name="line.243"></a>
-<span class="sourceLineNo">244</span>   * old region server wal queues<a name="line.244"></a>
-<span class="sourceLineNo">245</span>   */<a name="line.245"></a>
-<span class="sourceLineNo">246</span>  void init() throws IOException, ReplicationException {<a name="line.246"></a>
-<span class="sourceLineNo">247</span>    for (String id : this.replicationPeers.getConnectedPeerIds()) {<a name="line.247"></a>
-<span class="sourceLineNo">248</span>      addSource(id);<a name="line.248"></a>
-<span class="sourceLineNo">249</span>      if (replicationForBulkLoadDataEnabled) {<a name="line.249"></a>
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-<span class="sourceLineNo">493</span>        if(newReplicationEndPoint != null) {<a name="line.493"></a>
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-<span class="sourceLineNo">499</span>      LOG.warn("Passed replication endpoint implementation throws errors"<a name="line.499"></a>
-<span class="sourceLineNo">500</span>          + " while initializing ReplicationSource for peer: " + peerId, e);<a name="line.500"></a>
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-<span class="sourceLineNo">504</span>    MetricsSource metrics = new MetricsSource(peerId);<a name="line.504"></a>
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-<span class="sourceLineNo">564</span>   * @param id The id of the peer cluster<a name="line.564"></a>
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-<span class="sourceLineNo">568</span>        + sources.size() + " and another "<a name="line.568"></a>
-<span class="sourceLineNo">569</span>        + oldsources.size() + " that were recovered");<a name="line.569"></a>
-<span class="sourceLineNo">570</span>    String terminateMessage = "Replication stream was removed by a user";<a name="line.570"></a>
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-<span class="sourceLineNo">586</span>    LOG.info("Number of deleted recovered sources for " + id + ": "<a name="line.586"></a>
-<span class="sourceLineNo">587</span>        + oldSourcesToDelete.size());<a name="line.587"></a>
-<span class="sourceLineNo">588</span>    // Now look for the one on this cluster<a name="line.588"></a>
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-<span class="sourceLineNo">598</span>        LOG.error("The peer we wanted to remove is missing a ReplicationSourceInterface. " +<a name="line.598"></a>
-<span class="sourceLineNo">599</span>            "This could mean that ReplicationSourceInterface initialization failed for this peer " +<a name="line.599"></a>
-<span class="sourceLineNo">600</span>            "and that replication on this peer may not be caught up. peerId=" + id);<a name="line.600"></a>
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-<span class="sourceLineNo">618</span>    this.replicationQueues.removePeerFromHFileRefs(peerId);<a name="line.618"></a>
+<span class="sourceLineNo">043</span>import org.apache.commons.logging.Log;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.commons.logging.LogFactory;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.conf.Configuration;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.fs.FileSystem;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.fs.Path;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HConstants;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.MetaTableAccessor;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.Server;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.TableDescriptors;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.TableName;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.regionserver.RegionServerCoprocessorHost;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.replication.ReplicationEndpoint;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.replication.ReplicationListener;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.hbase.replication.ReplicationPeer;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.hadoop.hbase.replication.ReplicationPeerConfig;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.replication.ReplicationPeers;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.replication.ReplicationQueueInfo;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.replication.ReplicationQueues;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.replication.ReplicationTracker;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.util.Bytes;<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.yetus.audience.InterfaceAudience;<a name="line.69"></a>
+<span class="sourceLineNo">070</span><a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.shaded.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>/**<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * This class is responsible to manage all the replication<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * sources. There are two classes of sources:<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * &lt;ul&gt;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * &lt;li&gt; Normal sources are persistent and one per peer cluster&lt;/li&gt;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * &lt;li&gt; Old sources are recovered from a failed region server and our<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * only goal is to finish replicating the WAL queue it had up in ZK&lt;/li&gt;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * &lt;/ul&gt;<a name="line.81"></a>
+<span class="sourceLineNo">082</span> *<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * When a region server dies, this class uses a watcher to get notified and it<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * tries to grab a lock in order to transfer all the queues in a local<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * old source.<a name="line.85"></a>
+<span class="sourceLineNo">086</span> *<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * This class implements the ReplicationListener interface so that it can track changes in<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * replication state.<a name="line.88"></a>
+<span class="sourceLineNo">089</span> */<a name="line.89"></a>
+<span class="sourceLineNo">090</span>@InterfaceAudience.Private<a name="line.90"></a>
+<span class="sourceLineNo">091</span>public class ReplicationSourceManager implements ReplicationListener {<a name="line.91"></a>
+<span class="sourceLineNo">092</span>  private static final Log LOG =<a name="line.92"></a>
+<span class="sourceLineNo">093</span>      LogFactory.getLog(ReplicationSourceManager.class);<a name="line.93"></a>
+<span class="sourceLineNo">094</span>  // List of all the sources that read this RS's logs<a name="line.94"></a>
+<span class="sourceLineNo">095</span>  private final List&lt;ReplicationSourceInterface&gt; sources;<a name="line.95"></a>
+<span class="sourceLineNo">096</span>  // List of all the sources we got from died RSs<a name="line.96"></a>
+<span class="sourceLineNo">097</span>  private final List&lt;ReplicationSourceInterface&gt; oldsources;<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  private final ReplicationQueues replicationQueues;<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  private final ReplicationTracker replicationTracker;<a name="line.99"></a>
+<span class="sourceLineNo">100</span>  private final ReplicationPeers replicationPeers;<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  // UUID for this cluster<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  private final UUID clusterId;<a name="line.102"></a>
+<span class="sourceLineNo">103</span>  // All about stopping<a name="line.103"></a>
+<span class="sourceLineNo">104</span>  private final Server server;<a name="line.104"></a>
+<span class="sourceLineNo">105</span>  // All logs we are currently tracking<a name="line.105"></a>
+<span class="sourceLineNo">106</span>  // Index structure of the map is: peer_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.106"></a>
+<span class="sourceLineNo">107</span>  private final Map&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsById;<a name="line.107"></a>
+<span class="sourceLineNo">108</span>  // Logs for recovered sources we are currently tracking<a name="line.108"></a>
+<span class="sourceLineNo">109</span>  private final Map&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsByIdRecoveredQueues;<a name="line.109"></a>
+<span class="sourceLineNo">110</span>  private final Configuration conf;<a name="line.110"></a>
+<span class="sourceLineNo">111</span>  private final FileSystem fs;<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  // The paths to the latest log of each wal group, for new coming peers<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  private Set&lt;Path&gt; latestPaths;<a name="line.113"></a>
+<span class="sourceLineNo">114</span>  // Path to the wals directories<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  private final Path logDir;<a name="line.115"></a>
+<span class="sourceLineNo">116</span>  // Path to the wal archive<a name="line.116"></a>
+<span class="sourceLineNo">117</span>  private final Path oldLogDir;<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  private final WALFileLengthProvider walFileLengthProvider;<a name="line.118"></a>
+<span class="sourceLineNo">119</span>  // The number of ms that we wait before moving znodes, HBASE-3596<a name="line.119"></a>
+<span class="sourceLineNo">120</span>  private final long sleepBeforeFailover;<a name="line.120"></a>
+<span class="sourceLineNo">121</span>  // Homemade executer service for replication<a name="line.121"></a>
+<span class="sourceLineNo">122</span>  private final ThreadPoolExecutor executor;<a name="line.122"></a>
+<span class="sourceLineNo">123</span><a name="line.123"></a>
+<span class="sourceLineNo">124</span>  private final boolean replicationForBulkLoadDataEnabled;<a name="line.124"></a>
+<span class="sourceLineNo">125</span><a name="line.125"></a>
+<span class="sourceLineNo">126</span>  private Connection connection;<a name="line.126"></a>
+<span class="sourceLineNo">127</span>  private long replicationWaitTime;<a name="line.127"></a>
+<span class="sourceLineNo">128</span><a name="line.128"></a>
+<span class="sourceLineNo">129</span>  private AtomicLong totalBufferUsed = new AtomicLong();<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>  /**<a name="line.131"></a>
+<span class="sourceLineNo">132</span>   * Creates a replication manager and sets the watch on all the other registered region servers<a name="line.132"></a>
+<span class="sourceLineNo">133</span>   * @param replicationQueues the interface for manipulating replication queues<a name="line.133"></a>
+<span class="sourceLineNo">134</span>   * @param replicationPeers<a name="line.134"></a>
+<span class="sourceLineNo">135</span>   * @param replicationTracker<a name="line.135"></a>
+<span class="sourceLineNo">136</span>   * @param conf the configuration to use<a name="line.136"></a>
+<span class="sourceLineNo">137</span>   * @param server the server for this region server<a name="line.137"></a>
+<span class="sourceLineNo">138</span>   * @param fs the file system to use<a name="line.138"></a>
+<span class="sourceLineNo">139</span>   * @param logDir the directory that contains all wal directories of live RSs<a name="line.139"></a>
+<span class="sourceLineNo">140</span>   * @param oldLogDir the directory where old logs are archived<a name="line.140"></a>
+<span class="sourceLineNo">141</span>   * @param clusterId<a name="line.141"></a>
+<span class="sourceLineNo">142</span>   */<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  public ReplicationSourceManager(ReplicationQueues replicationQueues,<a name="line.143"></a>
+<span class="sourceLineNo">144</span>      ReplicationPeers replicationPeers, ReplicationTracker replicationTracker, Configuration conf,<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      Server server, FileSystem fs, Path logDir, Path oldLogDir, UUID clusterId,<a name="line.145"></a>
+<span class="sourceLineNo">146</span>      WALFileLengthProvider walFileLengthProvider) throws IOException {<a name="line.146"></a>
+<span class="sourceLineNo">147</span>    //CopyOnWriteArrayList is thread-safe.<a name="line.147"></a>
+<span class="sourceLineNo">148</span>    //Generally, reading is more than modifying.<a name="line.148"></a>
+<span class="sourceLineNo">149</span>    this.sources = new CopyOnWriteArrayList&lt;&gt;();<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    this.replicationQueues = replicationQueues;<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    this.replicationPeers = replicationPeers;<a name="line.151"></a>
+<span class="sourceLineNo">152</span>    this.replicationTracker = replicationTracker;<a name="line.152"></a>
+<span class="sourceLineNo">153</span>    this.server = server;<a name="line.153"></a>
+<span class="sourceLineNo">154</span>    this.walsById = new HashMap&lt;&gt;();<a name="line.154"></a>
+<span class="sourceLineNo">155</span>    this.walsByIdRecoveredQueues = new ConcurrentHashMap&lt;&gt;();<a name="line.155"></a>
+<span class="sourceLineNo">156</span>    this.oldsources = new CopyOnWriteArrayList&lt;&gt;();<a name="line.156"></a>
+<span class="sourceLineNo">157</span>    this.conf = conf;<a name="line.157"></a>
+<span class="sourceLineNo">158</span>    this.fs = fs;<a name="line.158"></a>
+<span class="sourceLineNo">159</span>    this.logDir = logDir;<a name="line.159"></a>
+<span class="sourceLineNo">160</span>    this.oldLogDir = oldLogDir;<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    this.sleepBeforeFailover =<a name="line.161"></a>
+<span class="sourceLineNo">162</span>        conf.getLong("replication.sleep.before.failover", 30000); // 30 seconds<a name="line.162"></a>
+<span class="sourceLineNo">163</span>    this.clusterId = clusterId;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>    this.walFileLengthProvider = walFileLengthProvider;<a name="line.164"></a>
+<span class="sourceLineNo">165</span>    this.replicationTracker.registerListener(this);<a name="line.165"></a>
+<span class="sourceLineNo">166</span>    this.replicationPeers.getAllPeerIds();<a name="line.166"></a>
+<span class="sourceLineNo">167</span>    // It's preferable to failover 1 RS at a time, but with good zk servers<a name="line.167"></a>
+<span class="sourceLineNo">168</span>    // more could be processed at the same time.<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    int nbWorkers = conf.getInt("replication.executor.workers", 1);<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    // use a short 100ms sleep since this could be done inline with a RS startup<a name="line.170"></a>
+<span class="sourceLineNo">171</span>    // even if we fail, other region servers can take care of it<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    this.executor = new ThreadPoolExecutor(nbWorkers, nbWorkers,<a name="line.172"></a>
+<span class="sourceLineNo">173</span>        100, TimeUnit.MILLISECONDS, new LinkedBlockingQueue&lt;&gt;());<a name="line.173"></a>
+<span class="sourceLineNo">174</span>    ThreadFactoryBuilder tfb = new ThreadFactoryBuilder();<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    tfb.setNameFormat("ReplicationExecutor-%d");<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    tfb.setDaemon(true);<a name="line.176"></a>
+<span class="sourceLineNo">177</span>    this.executor.setThreadFactory(tfb.build());<a name="line.177"></a>
+<span class="sourceLineNo">178</span>    this.latestPaths = new HashSet&lt;Path&gt;();<a name="line.178"></a>
+<span class="sourceLineNo">179</span>    replicationForBulkLoadDataEnabled =<a name="line.179"></a>
+<span class="sourceLineNo">180</span>        conf.getBoolean(HConstants.REPLICATION_BULKLOAD_ENABLE_KEY,<a name="line.180"></a>
+<span class="sourceLineNo">181</span>          HConstants.REPLICATION_BULKLOAD_ENABLE_DEFAULT);<a name="line.181"></a>
+<span class="sourceLineNo">182</span>    this.replicationWaitTime = conf.getLong(HConstants.REPLICATION_SERIALLY_WAITING_KEY,<a name="line.182"></a>
+<span class="sourceLineNo">183</span>          HConstants.REPLICATION_SERIALLY_WAITING_DEFAULT);<a name="line.183"></a>
+<span class="sourceLineNo">184</span>    connection = ConnectionFactory.createConnection(conf);<a name="line.184"></a>
+<span class="sourceLineNo">185</span>  }<a name="line.185"></a>
+<span class="sourceLineNo">186</span><a name="line.186"></a>
+<span class="sourceLineNo">187</span>  /**<a name="line.187"></a>
+<span class="sourceLineNo">188</span>   * Provide the id of the peer and a log key and this method will figure which<a name="line.188"></a>
+<span class="sourceLineNo">189</span>   * wal it belongs to and will log, for this region server, the current<a name="line.189"></a>
+<span class="sourceLineNo">190</span>   * position. It will also clean old logs from the queue.<a name="line.190"></a>
+<span class="sourceLineNo">191</span>   * @param log Path to the log currently being replicated from<a name="line.191"></a>
+<span class="sourceLineNo">192</span>   * replication status in zookeeper. It will also delete older entries.<a name="line.192"></a>
+<span class="sourceLineNo">193</span>   * @param id id of the peer cluster<a name="line.193"></a>
+<span class="sourceLineNo">194</span>   * @param position current location in the log<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * @param queueRecovered indicates if this queue comes from another region server<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   * @param holdLogInZK if true then the log is retained in ZK<a name="line.196"></a>
+<span class="sourceLineNo">197</span>   */<a name="line.197"></a>
+<span class="sourceLineNo">198</span>  public void logPositionAndCleanOldLogs(Path log, String id, long position,<a name="line.198"></a>
+<span class="sourceLineNo">199</span>      boolean queueRecovered, boolean holdLogInZK) {<a name="line.199"></a>
+<span class="sourceLineNo">200</span>    String fileName = log.getName();<a name="line.200"></a>
+<span class="sourceLineNo">201</span>    this.replicationQueues.setLogPosition(id, fileName, position);<a name="line.201"></a>
+<span class="sourceLineNo">202</span>    if (holdLogInZK) {<a name="line.202"></a>
+<span class="sourceLineNo">203</span>     return;<a name="line.203"></a>
+<span class="sourceLineNo">204</span>    }<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    cleanOldLogs(fileName, id, queueRecovered);<a name="line.205"></a>
+<span class="sourceLineNo">206</span>  }<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>  /**<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   * Cleans a log file and all older files from ZK. Called when we are sure that a<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   * log file is closed and has no more entries.<a name="line.210"></a>
+<span class="sourceLineNo">211</span>   * @param key Path to the log<a name="line.211"></a>
+<span class="sourceLineNo">212</span>   * @param id id of the peer cluster<a name="line.212"></a>
+<span class="sourceLineNo">213</span>   * @param queueRecovered Whether this is a recovered queue<a name="line.213"></a>
+<span class="sourceLineNo">214</span>   */<a name="line.214"></a>
+<span class="sourceLineNo">215</span>  public void cleanOldLogs(String key, String id, boolean queueRecovered) {<a name="line.215"></a>
+<span class="sourceLineNo">216</span>    String logPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(key);<a name="line.216"></a>
+<span class="sourceLineNo">217</span>    if (queueRecovered) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span>      SortedSet&lt;String&gt; wals = walsByIdRecoveredQueues.get(id).get(logPrefix);<a name="line.218"></a>
+<span class="sourceLineNo">219</span>      if (wals != null &amp;&amp; !wals.first().equals(key)) {<a name="line.219"></a>
+<span class="sourceLineNo">220</span>        cleanOldLogs(wals, key, id);<a name="line.220"></a>
+<span class="sourceLineNo">221</span>      }<a name="line.221"></a>
+<span class="sourceLineNo">222</span>    } else {<a name="line.222"></a>
+<span class="sourceLineNo">223</span>      synchronized (this.walsById) {<a name="line.223"></a>
+<span class="sourceLineNo">224</span>        SortedSet&lt;String&gt; wals = walsById.get(id).get(logPrefix);<a name="line.224"></a>
+<span class="sourceLineNo">225</span>        if (wals != null &amp;&amp; !wals.first().equals(key)) {<a name="line.225"></a>
+<span class="sourceLineNo">226</span>          cleanOldLogs(wals, key, id);<a name="line.226"></a>
+<span class="sourceLineNo">227</span>        }<a name="line.227"></a>
+<span class="sourceLineNo">228</span>      }<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    }<a name="line.229"></a>
+<span class="sourceLineNo">230</span> }<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span>  private void cleanOldLogs(SortedSet&lt;String&gt; wals, String key, String id) {<a name="line.232"></a>
+<span class="sourceLineNo">233</span>    SortedSet&lt;String&gt; walSet = wals.headSet(key);<a name="line.233"></a>
+<span class="sourceLineNo">234</span>    LOG.debug("Removing " + walSet.size() + " logs in the list: " + walSet);<a name="line.234"></a>
+<span class="sourceLineNo">235</span>    for (String wal : walSet) {<a name="line.235"></a>
+<span class="sourceLineNo">236</span>      this.replicationQueues.removeLog(id, wal);<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    }<a name="line.237"></a>
+<span class="sourceLineNo">238</span>    walSet.clear();<a name="line.238"></a>
+<span class="sourceLineNo">239</span>  }<a name="line.239"></a>
+<span class="sourceLineNo">240</span><a name="line.240"></a>
+<span class="sourceLineNo">241</span>  /**<a name="line.241"></a>
+<span class="sourceLineNo">242</span>   * Adds a normal source per registered peer cluster and tries to process all<a name="line.242"></a>
+<span class="sourceLineNo">243</span>   * old region server wal queues<a name="line.243"></a>
+<span class="sourceLineNo">244</span>   */<a name="line.244"></a>
+<span class="sourceLineNo">245</span>  void init() throws IOException, ReplicationException {<a name="line.245"></a>
+<span class="sourceLineNo">246</span>    for (String id : this.replicationPeers.getConnectedPeerIds()) {<a name="line.246"></a>
+<span class="sourceLineNo">247</span>      addSource(id);<a name="line.247"></a>
+<span class="sourceLineNo">248</span>      if (replicationForBulkLoadDataEnabled) {<a name="line.248"></a>
+<span class="sourceLineNo">249</span>        // Check if peer exists in hfile-refs queue, if not add it. This can happen in the case<a name="line.249"></a>
+<span class="sourceLineNo">250</span>        // when a peer was added before replication for bulk loaded data was enabled.<a name="line.250"></a>
+<span class="sourceLineNo">251</span>        this.replicationQueues.addPeerToHFileRefs(id);<a name="line.251"></a>
+<span class="sourceLineNo">252</span>      }<a name="line.252"></a>
+<span class="sourceLineNo">253</span>    }<a name="line.253"></a>
+<span class="sourceLineNo">254</span>    AdoptAbandonedQueuesWorker adoptionWorker = new AdoptAbandonedQueuesWorker();<a name="line.254"></a>
+<span class="sourceLineNo">255</span>    try {<a name="line.255"></a>
+<span class="sourceLineNo">256</span>      this.executor.execute(adoptionWorker);<a name="line.256"></a>
+<span class="sourceLineNo">257</span>    } catch (RejectedExecutionException ex) {<a name="line.257"></a>
+<span class="sourceLineNo">258</span>      LOG.info("Cancelling the adoption of abandoned queues because of " + ex.getMessage());<a name="line.258"></a>
+<span class="sourceLineNo">259</span>    }<a name="line.259"></a>
+<span class="sourceLineNo">260</span>  }<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span>  /**<a name="line.262"></a>
+<span class="sourceLineNo">263</span>   * Add sources for the given peer cluster on this region server. For the newly added peer, we only<a name="line.263"></a>
+<span class="sourceLineNo">264</span>   * need to enqueue the latest log of each wal group and do replication<a name="line.264"></a>
+<span class="sourceLineNo">265</span>   * @param id the id of the peer cluster<a name="line.265"></a>
+<span class="sourceLineNo">266</span>   * @return the source that was created<a name="line.266"></a>
+<span class="sourceLineNo">267</span>   * @throws IOException<a name="line.267"></a>
+<span class="sourceLineNo">268</span>   */<a name="line.268"></a>
+<span class="sourceLineNo">269</span>  @VisibleForTesting<a name="line.269"></a>
+<span class="sourceLineNo">270</span>  ReplicationSourceInterface addSource(String id) throws IOException, ReplicationException {<a name="line.270"></a>
+<span class="sourceLineNo">271</span>    ReplicationPeerConfig peerConfig = replicationPeers.getReplicationPeerConfig(id);<a name="line.271"></a>
+<span class="sourceLineNo">272</span>    ReplicationPeer peer = replicationPeers.getConnectedPeer(id);<a name="line.272"></a>
+<span class="sourceLineNo">273</span>    ReplicationSourceInterface src = getReplicationSource(this.conf, this.fs, this,<a name="line.273"></a>
+<span class="sourceLineNo">274</span>      this.replicationQueues, this.replicationPeers, server, id, this.clusterId, peerConfig, peer,<a name="line.274"></a>
+<span class="sourceLineNo">275</span>      walFileLengthProvider);<a name="line.275"></a>
+<span class="sourceLineNo">276</span>    synchronized (this.walsById) {<a name="line.276"></a>
+<span class="sourceLineNo">277</span>      this.sources.add(src);<a name="line.277"></a>
+<span class="sourceLineNo">278</span>      Map&lt;String, SortedSet&lt;String&gt;&gt; walsByGroup = new HashMap&lt;&gt;();<a name="line.278"></a>
+<span class="sourceLineNo">279</span>      this.walsById.put(id, walsByGroup);<a name="line.279"></a>
+<span class="sourceLineNo">280</span>      // Add the latest wal to that source's queue<a name="line.280"></a>
+<span class="sourceLineNo">281</span>      synchronized (latestPaths) {<a name="line.281"></a>
+<span class="sourceLineNo">282</span>        if (this.latestPaths.size() &gt; 0) {<a name="line.282"></a>
+<span class="sourceLineNo">283</span>          for (Path logPath : latestPaths) {<a name="line.283"></a>
+<span class="sourceLineNo">284</span>            String name = logPath.getName();<a name="line.284"></a>
+<span class="sourceLineNo">285</span>            String walPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(name);<a name="line.285"></a>
+<span class="sourceLineNo">286</span>            SortedSet&lt;String&gt; logs = new TreeSet&lt;&gt;();<a name="line.286"></a>
+<span class="sourceLineNo">287</span>            logs.add(name);<a name="line.287"></a>
+<span class="sourceLineNo">288</span>            walsByGroup.put(walPrefix, logs);<a name="line.288"></a>
+<span class="sourceLineNo">289</span>            try {<a name="line.289"></a>
+<span class="sourceLineNo">290</span>              this.replicationQueues.addLog(id, name);<a name="line.290"></a>
+<span class="sourceLineNo">291</span>            } catch (ReplicationException e) {<a name="line.291"></a>
+<span class="sourceLineNo">292</span>              String message =<a name="line.292"></a>
+<span class="sourceLineNo">293</span>                  "Cannot add log to queue when creating a new source, queueId=" + id<a name="line.293"></a>
+<span class="sourceLineNo">294</span>                      + ", filename=" + name;<a name="line.294"></a>
+<span class="sourceLineNo">295</span>              server.stop(message);<a name="line.295"></a>
+<span class="sourceLineNo">296</span>              throw e;<a name="line.296"></a>
+<span class="sourceLineNo">297</span>            }<a name="line.297"></a>
+<span class="sourceLineNo">298</span>            src.enqueueLog(logPath);<a name="line.298"></a>
+<span class="sourceLineNo">299</span>          }<a name="line.299"></a>
+<span class="sourceLineNo">300</span>        }<a name="line.300"></a>
+<span class="sourceLineNo">301</span>      }<a name="line.301"></a>
+<span class="sourceLineNo">302</span>    }<a name="line.302"></a>
+<span class="sourceLineNo">303</span>    src.startup();<a name="line.303"></a>
+<span class="sourceLineNo">304</span>    return src;<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>  @VisibleForTesting<a name="line.307"></a>
+<span class="sourceLineNo">308</span>  int getSizeOfLatestPath() {<a name="line.308"></a>
+<span class="sourceLineNo">309</span>    synchronized (latestPaths) {<a name="line.309"></a>
+<span class="sourceLineNo">310</span>      return latestPaths.size();<a name="line.310"></a>
+<span class="sourceLineNo">311</span>    }<a name="line.311"></a>
+<span class="sourceLineNo">312</span>  }<a name="line.312"></a>
+<span class="sourceLineNo">313</span><a name="line.313"></a>
+<span class="sourceLineNo">314</span>  /**<a name="line.314"></a>
+<span class="sourceLineNo">315</span>   * Delete a complete queue of wals associated with a peer cluster<a name="line.315"></a>
+<span class="sourceLineNo">316</span>   * @param peerId Id of the peer cluster queue of wals to delete<a name="line.316"></a>
+<span class="sourceLineNo">317</span>   */<a name="line.317"></a>
+<span class="sourceLineNo">318</span>  public void deleteSource(String peerId, boolean closeConnection) {<a name="line.318"></a>
+<span class="sourceLineNo">319</span>    this.replicationQueues.removeQueue(peerId);<a name="line.319"></a>
+<span class="sourceLineNo">320</span>    if (closeConnection) {<a name="line.320"></a>
+<span class="sourceLineNo">321</span>      this.replicationPeers.peerDisconnected(peerId);<a name="line.321"></a>
+<span class="sourceLineNo">322</span>    }<a name="line.322"></a>
+<span class="sourceLineNo">323</span>  }<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>   * Terminate the replication on this region server<a name="line.326"></a>
+<span class="sourceLineNo">327</span>   */<a name="line.327"></a>
+<span class="sourceLineNo">328</span>  public void join() {<a name="line.328"></a>
+<sp

<TRUNCATED>

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