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From git-site-r...@apache.org
Subject [17/26] hbase-site git commit: Published site at 67f013430c9ba051385c45d72ee680c44eb88470.
Date Mon, 19 Mar 2018 14:53:57 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fd35fe02/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 8e48140..2676386 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
@@ -33,855 +33,860 @@
 <span class="sourceLineNo">025</span>import java.util.Iterator;<a name="line.25"></a>
 <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a>
 <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import java.util.Set;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import java.util.SortedSet;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import java.util.TreeSet;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import java.util.UUID;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.util.concurrent.ConcurrentMap;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import java.util.concurrent.Future;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import java.util.concurrent.RejectedExecutionException;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import java.util.concurrent.TimeUnit;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import java.util.stream.Collectors;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.conf.Configuration;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.fs.FileSystem;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.fs.Path;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.HConstants;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.Server;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.ServerName;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.TableName;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.replication.ReplicationListener;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.replication.ReplicationPeer;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.replication.ReplicationPeer.PeerState;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.replication.ReplicationPeers;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.replication.ReplicationQueueInfo;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.replication.ReplicationQueueStorage;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.replication.ReplicationTracker;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.slf4j.Logger;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import org.slf4j.LoggerFactory;<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span>/**<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * This class is responsible to manage all the replication sources. There are two classes of<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * sources:<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * &lt;ul&gt;<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * &lt;li&gt;Normal sources are persistent and one per peer cluster&lt;/li&gt;<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * &lt;li&gt;Old sources are recovered from a failed region server and our only goal is to finish<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * replicating the WAL queue it had&lt;/li&gt;<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * &lt;/ul&gt;<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * &lt;p&gt;<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * When a region server dies, this class uses a watcher to get notified and it tries to grab a lock<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * in order to transfer all the queues in a local old source.<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * &lt;p&gt;<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * Synchronization specification:<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * &lt;ul&gt;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * &lt;li&gt;No need synchronized on {@link #sources}. {@link #sources} is a ConcurrentHashMap and there<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * is a Lock for peer id in {@link PeerProcedureHandlerImpl}. So there is no race for peer<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * operations.&lt;/li&gt;<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * &lt;li&gt;Need synchronized on {@link #walsById}. There are four methods which modify it,<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * {@link #addPeer(String)}, {@link #removePeer(String)},<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * {@link #cleanOldLogs(SortedSet, String, String)} and {@link #preLogRoll(Path)}.<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * {@link #walsById} is a ConcurrentHashMap and there is a Lock for peer id in<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * {@link PeerProcedureHandlerImpl}. So there is no race between {@link #addPeer(String)} and<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * {@link #removePeer(String)}. {@link #cleanOldLogs(SortedSet, String, String)} is called by<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * {@link ReplicationSourceInterface}. So no race with {@link #addPeer(String)}.<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * {@link #removePeer(String)} will terminate the {@link ReplicationSourceInterface} firstly, then<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * remove the wals from {@link #walsById}. So no race with {@link #removePeer(String)}. The only<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * case need synchronized is {@link #cleanOldLogs(SortedSet, String, String)} and<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * {@link #preLogRoll(Path)}.&lt;/li&gt;<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * &lt;li&gt;No need synchronized on {@link #walsByIdRecoveredQueues}. There are three methods which<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * modify it, {@link #removePeer(String)} , {@link #cleanOldLogs(SortedSet, String, String)} and<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * {@link ReplicationSourceManager.NodeFailoverWorker#run()}.<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * {@link #cleanOldLogs(SortedSet, String, String)} is called by {@link ReplicationSourceInterface}.<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * {@link #removePeer(String)} will terminate the {@link ReplicationSourceInterface} firstly, then<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * remove the wals from {@link #walsByIdRecoveredQueues}. And<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * {@link ReplicationSourceManager.NodeFailoverWorker#run()} will add the wals to<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * {@link #walsByIdRecoveredQueues} firstly, then start up a {@link ReplicationSourceInterface}. So<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * there is no race here. For {@link ReplicationSourceManager.NodeFailoverWorker#run()} and<a name="line.102"></a>
-<span class="sourceLineNo">103</span> * {@link #removePeer(String)}, there is already synchronized on {@link #oldsources}. So no need<a name="line.103"></a>
-<span class="sourceLineNo">104</span> * synchronized on {@link #walsByIdRecoveredQueues}.&lt;/li&gt;<a name="line.104"></a>
-<span class="sourceLineNo">105</span> * &lt;li&gt;Need synchronized on {@link #latestPaths} to avoid the new open source miss new log.&lt;/li&gt;<a name="line.105"></a>
-<span class="sourceLineNo">106</span> * &lt;li&gt;Need synchronized on {@link #oldsources} to avoid adding recovered source for the<a name="line.106"></a>
-<span class="sourceLineNo">107</span> * to-be-removed peer.&lt;/li&gt;<a name="line.107"></a>
-<span class="sourceLineNo">108</span> * &lt;/ul&gt;<a name="line.108"></a>
-<span class="sourceLineNo">109</span> */<a name="line.109"></a>
-<span class="sourceLineNo">110</span>@InterfaceAudience.Private<a name="line.110"></a>
-<span class="sourceLineNo">111</span>public class ReplicationSourceManager implements ReplicationListener {<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  private static final Logger LOG = LoggerFactory.getLogger(ReplicationSourceManager.class);<a name="line.112"></a>
-<span class="sourceLineNo">113</span>  // all the sources that read this RS's logs and every peer only has one replication source<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  private final ConcurrentMap&lt;String, ReplicationSourceInterface&gt; sources;<a name="line.114"></a>
-<span class="sourceLineNo">115</span>  // List of all the sources we got from died RSs<a name="line.115"></a>
-<span class="sourceLineNo">116</span>  private final List&lt;ReplicationSourceInterface&gt; oldsources;<a name="line.116"></a>
-<span class="sourceLineNo">117</span>  private final ReplicationQueueStorage queueStorage;<a name="line.117"></a>
-<span class="sourceLineNo">118</span>  private final ReplicationTracker replicationTracker;<a name="line.118"></a>
-<span class="sourceLineNo">119</span>  private final ReplicationPeers replicationPeers;<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  // UUID for this cluster<a name="line.120"></a>
-<span class="sourceLineNo">121</span>  private final UUID clusterId;<a name="line.121"></a>
-<span class="sourceLineNo">122</span>  // All about stopping<a name="line.122"></a>
-<span class="sourceLineNo">123</span>  private final Server server;<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>  // All logs we are currently tracking<a name="line.125"></a>
-<span class="sourceLineNo">126</span>  // Index structure of the map is: queue_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.126"></a>
-<span class="sourceLineNo">127</span>  // For normal replication source, the peer id is same with the queue id<a name="line.127"></a>
-<span class="sourceLineNo">128</span>  private final ConcurrentMap&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsById;<a name="line.128"></a>
-<span class="sourceLineNo">129</span>  // Logs for recovered sources we are currently tracking<a name="line.129"></a>
-<span class="sourceLineNo">130</span>  // the map is: queue_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.130"></a>
-<span class="sourceLineNo">131</span>  // For recovered source, the queue id's format is peer_id-servername-*<a name="line.131"></a>
-<span class="sourceLineNo">132</span>  private final ConcurrentMap&lt;String, Map&lt;String, SortedSet&lt;String&gt;&gt;&gt; walsByIdRecoveredQueues;<a name="line.132"></a>
-<span class="sourceLineNo">133</span><a name="line.133"></a>
-<span class="sourceLineNo">134</span>  private final Configuration conf;<a name="line.134"></a>
-<span class="sourceLineNo">135</span>  private final FileSystem fs;<a name="line.135"></a>
-<span class="sourceLineNo">136</span>  // The paths to the latest log of each wal group, for new coming peers<a name="line.136"></a>
-<span class="sourceLineNo">137</span>  private final Set&lt;Path&gt; latestPaths;<a name="line.137"></a>
-<span class="sourceLineNo">138</span>  // Path to the wals directories<a name="line.138"></a>
-<span class="sourceLineNo">139</span>  private final Path logDir;<a name="line.139"></a>
-<span class="sourceLineNo">140</span>  // Path to the wal archive<a name="line.140"></a>
-<span class="sourceLineNo">141</span>  private final Path oldLogDir;<a name="line.141"></a>
-<span class="sourceLineNo">142</span>  private final WALFileLengthProvider walFileLengthProvider;<a name="line.142"></a>
-<span class="sourceLineNo">143</span>  // The number of ms that we wait before moving znodes, HBASE-3596<a name="line.143"></a>
-<span class="sourceLineNo">144</span>  private final long sleepBeforeFailover;<a name="line.144"></a>
-<span class="sourceLineNo">145</span>  // Homemade executer service for replication<a name="line.145"></a>
-<span class="sourceLineNo">146</span>  private final ThreadPoolExecutor executor;<a name="line.146"></a>
-<span class="sourceLineNo">147</span><a name="line.147"></a>
-<span class="sourceLineNo">148</span>  private final boolean replicationForBulkLoadDataEnabled;<a name="line.148"></a>
-<span class="sourceLineNo">149</span><a name="line.149"></a>
+<span class="sourceLineNo">028</span>import java.util.NavigableSet;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import java.util.Set;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.util.SortedSet;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.util.TreeSet;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.UUID;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.concurrent.ConcurrentMap;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.concurrent.Future;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.concurrent.RejectedExecutionException;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.concurrent.ThreadLocalRandom;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import java.util.concurrent.ThreadPoolExecutor;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import java.util.concurrent.TimeUnit;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import java.util.stream.Collectors;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.conf.Configuration;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.fs.FileSystem;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.fs.Path;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.HConstants;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.Server;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.ServerName;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.TableName;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.replication.ReplicationException;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.replication.ReplicationListener;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.replication.ReplicationPeer;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.replication.ReplicationPeer.PeerState;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.replication.ReplicationPeers;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.replication.ReplicationQueueInfo;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.replication.ReplicationQueueStorage;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.replication.ReplicationTracker;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hbase.wal.AbstractFSWALProvider;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.slf4j.Logger;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import org.slf4j.LoggerFactory;<a name="line.62"></a>
+<span class="sourceLineNo">063</span><a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.65"></a>
+<span class="sourceLineNo">066</span><a name="line.66"></a>
+<span class="sourceLineNo">067</span>/**<a name="line.67"></a>
+<span class="sourceLineNo">068</span> * This class is responsible to manage all the replication sources. There are two classes of<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * sources:<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * &lt;ul&gt;<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * &lt;li&gt;Normal sources are persistent and one per peer cluster&lt;/li&gt;<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * &lt;li&gt;Old sources are recovered from a failed region server and our only goal is to finish<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * replicating the WAL queue it had&lt;/li&gt;<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * &lt;/ul&gt;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * &lt;p&gt;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * When a region server dies, this class uses a watcher to get notified and it tries to grab a lock<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * in order to transfer all the queues in a local old source.<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * &lt;p&gt;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * Synchronization specification:<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * &lt;ul&gt;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * &lt;li&gt;No need synchronized on {@link #sources}. {@link #sources} is a ConcurrentHashMap and there<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * is a Lock for peer id in {@link PeerProcedureHandlerImpl}. So there is no race for peer<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * operations.&lt;/li&gt;<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * &lt;li&gt;Need synchronized on {@link #walsById}. There are four methods which modify it,<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * {@link #addPeer(String)}, {@link #removePeer(String)},<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * {@link #cleanOldLogs(NavigableSet, String, boolean, String)} and {@link #preLogRoll(Path)}.<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * {@link #walsById} is a ConcurrentHashMap and there is a Lock for peer id in<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * {@link PeerProcedureHandlerImpl}. So there is no race between {@link #addPeer(String)} and<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * {@link #removePeer(String)}. {@link #cleanOldLogs(NavigableSet, String, boolean, String)} is<a name="line.89"></a>
+<span class="sourceLineNo">090</span> * called by {@link ReplicationSourceInterface}. So no race with {@link #addPeer(String)}.<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * {@link #removePeer(String)} will terminate the {@link ReplicationSourceInterface} firstly, then<a name="line.91"></a>
+<span class="sourceLineNo">092</span> * remove the wals from {@link #walsById}. So no race with {@link #removePeer(String)}. The only<a name="line.92"></a>
+<span class="sourceLineNo">093</span> * case need synchronized is {@link #cleanOldLogs(NavigableSet, String, boolean, String)} and<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * {@link #preLogRoll(Path)}.&lt;/li&gt;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * &lt;li&gt;No need synchronized on {@link #walsByIdRecoveredQueues}. There are three methods which<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * modify it, {@link #removePeer(String)} ,<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * {@link #cleanOldLogs(NavigableSet, String, boolean, String)} and<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * {@link ReplicationSourceManager.NodeFailoverWorker#run()}.<a name="line.98"></a>
+<span class="sourceLineNo">099</span> * {@link #cleanOldLogs(NavigableSet, String, boolean, String)} is called by<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * {@link ReplicationSourceInterface}. {@link #removePeer(String)} will terminate the<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * {@link ReplicationSourceInterface} firstly, then remove the wals from<a name="line.101"></a>
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+<span class="sourceLineNo">108</span> * &lt;li&gt;Need synchronized on {@link #latestPaths} to avoid the new open source miss new log.&lt;/li&gt;<a name="line.108"></a>
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+<span class="sourceLineNo">113</span>@InterfaceAudience.Private<a name="line.113"></a>
+<span class="sourceLineNo">114</span>public class ReplicationSourceManager implements ReplicationListener {<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  private static final Logger LOG = LoggerFactory.getLogger(ReplicationSourceManager.class);<a name="line.115"></a>
+<span class="sourceLineNo">116</span>  // all the sources that read this RS's logs and every peer only has one replication source<a name="line.116"></a>
+<span class="sourceLineNo">117</span>  private final ConcurrentMap&lt;String, ReplicationSourceInterface&gt; sources;<a name="line.117"></a>
+<span class="sourceLineNo">118</span>  // List of all the sources we got from died RSs<a name="line.118"></a>
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+<span class="sourceLineNo">123</span>  // UUID for this cluster<a name="line.123"></a>
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+<span class="sourceLineNo">125</span>  // All about stopping<a name="line.125"></a>
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+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  // All logs we are currently tracking<a name="line.128"></a>
+<span class="sourceLineNo">129</span>  // Index structure of the map is: queue_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.129"></a>
+<span class="sourceLineNo">130</span>  // For normal replication source, the peer id is same with the queue id<a name="line.130"></a>
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+<span class="sourceLineNo">132</span>  // Logs for recovered sources we are currently tracking<a name="line.132"></a>
+<span class="sourceLineNo">133</span>  // the map is: queue_id-&gt;logPrefix/logGroup-&gt;logs<a name="line.133"></a>
+<span class="sourceLineNo">134</span>  // For recovered source, the queue id's format is peer_id-servername-*<a name="line.134"></a>
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+<span class="sourceLineNo">143</span>  // Path to the wal archive<a name="line.143"></a>
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+<span class="sourceLineNo">146</span>  // The number of ms that we wait before moving znodes, HBASE-3596<a name="line.146"></a>
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+<span class="sourceLineNo">148</span>  // Homemade executer service for replication<a name="line.148"></a>
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 <span class="sourceLineNo">150</span><a name="line.150"></a>
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 <span class="sourceLineNo">152</span><a name="line.152"></a>
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+<span class="sourceLineNo">187</span>                                                                                         // seconds<a name="line.187"></a>
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+<span class="sourceLineNo">327</span><a name="line.327"></a>
+<span class="sourceLineNo">328</span>  /**<a name="line.328"></a>
+<span class="sourceLineNo">329</span>   * Add a normal source for the given peer on this region server. Meanwhile, add new replication<a name="line.329"></a>
+<span class="sourceLineNo">330</span>   * queue to storage. For the newly added peer, we only need to enqueue the latest log of each wal<a name="line.330"></a>
+<span class="sourceLineNo">331</span>   * group and do replication<a name="line.331"></a>
+<span class="sourceLineNo">332</span>   * @param peerId the id of the replication peer<a name="line.332"></a>
+<span class="sourceLineNo">333</span>   * @return the source that was created<a name="line.333"></a>
+<span class="sourceLineNo">334</span>   */<a name="line.334"></a>
+<span class="sourceLineNo">335</span>  @VisibleForTesting<a name="line.335"></a>
+<span class="sourceLineNo">336</span>  ReplicationSourceInterface addSource(String peerId) throws IOException {<a name="line.336"></a>
+<span class="sourceLineNo">337</span>    ReplicationPeer peer = replicationPeers.getPeer(peerId);<a name="line.337"></a>
+<span class="sourceLineNo">338</span>    ReplicationSourceInterface src = createSource(peerId, peer);<a name="line.338"></a>
+<span class="sourceLineNo">339</span>    // synchronized on latestPaths to avoid missing the new log<a name="line.339"></a>
+<span class="sourceLineNo">340</span>    synchronized (this.latestPaths) {<a name="line.340"></a>
+<span class="sourceLineNo">341</span>      this.sources.put(peerId, src);<a name="line.341"></a>
+<span class="sourceLineNo">342</span>      Map&lt;String, NavigableSet&lt;String&gt;&gt; walsByGroup = new HashMap&lt;&gt;();<a name="line.342"></a>
+<span class="sourceLineNo">343</span>      this.walsById.put(peerId, walsByGroup);<a name="line.343"></a>
+<span class="sourceLineNo">344</span>      // Add the latest wal to that source's queue<a name="line.344"></a>
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+<span class="sourceLineNo">346</span>        for (Path logPath : latestPaths) {<a name="line.346"></a>
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+<span class="sourceLineNo">348</span>          String walPrefix = AbstractFSWALProvider.getWALPrefixFromWALName(name);<a name="line.348"></a>
+<span class="sourceLineNo">349</span>          NavigableSet&lt;String&gt; logs = new TreeSet&lt;&gt;();<a name="line.349"></a>
+<span class="sourceLineNo">350</span>          logs.add(name);<a name="line.350"></a>
+<span class="sourceLineNo">351</span>          walsByGroup.put(walPrefix, logs);<a name="line.351"></a>
+<span class="sourceLineNo">352</span>          // Abort RS and throw exception to make add peer failed<a name="line.352"></a>
+<span class="sourceLineNo">353</span>          abortAndThrowIOExceptionWhenFail(<a name="line.353"></a>
+<span class="sourceLineNo">354</span>            () -&gt; this.queueStorage.addWAL(server.getServerName(), peerId, name));<a name="line.354"></a>
+<span class="sourceLineNo">355</span>          src.enqueueLog(logPath);<a name="line.355"></a>
+<span class="sourceLineNo">356</span>        }<a name="line.356"></a>
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+<span class="sourceLineNo">359</span>    src.startup();<a name="line.359"></a>
+<span class="sourceLineNo">360</span>    return src;<a name="line.360"></a>
+<span class="sourceLineNo">361</span>  }<a name="line.361"></a>
+<span class="sourceLineNo">362</span><a name="line.362"></a>
+<span class="sourceLineNo">363</span>  /**<a name="line.363"></a>
+<span class="sourceLineNo">364</span>   * Close the previous replication sources of this peer id and open new sources to trigger the new<a name="line.364"></a>
+<span class="sourceLineNo">365</span>   * replication state changes or new replication config changes. Here we don't need to change<a name="line.365"></a>
+<span class="sourceLineNo">366</span>   * replication queue storage and only to enqueue all logs to the new replication source<a name="line.366"></a>
+<span class="sourceLineNo">367</span>   * @param peerId the id of the replication peer<a name="line.367"></a>
+<span class="sourceLineNo">368</span>   * @throws IOException<a name="line.368"></a>
+<span class="sourceLineNo">369</span>   */<a name="line.369"></a>
+<span class="sourceLineNo">370</span>  public void refreshSources(String peerId) throws IOException {<a name="line.370"></a>
+<span class="sourceLineNo">371</span>    String terminateMessage = "Peer " + peerId +<a name="line.371"></a>
+<span class="sourceLineNo">372</span>      " state or config changed. Will close the previous replication source and open a new one";<a name="line.372"></a>
+<span class="sourceLineNo">373</span>    ReplicationPeer peer = replicationPeers.getPeer(peerId);<a name="line.373"></a>
+<span class="sourceLineNo">374</span>    ReplicationSourceInterface src = createSource(peerId, peer);<a name="line.374"></a>
+<span class="sourceLineNo">375</span>    // synchronized on latestPaths to avoid missing the new log<a name="line.375"></a>
+<span class="sourceLineNo">376</span>    synchronized (this.latestPaths) {<a name="line.376"></a>
+<span class="sourceLineNo">377</span>      ReplicationSourceInterface toRemove = this.sources.put(peerId, src);<a name="line.377"></a>
+<span class="sourceLineNo">378</span>      if (toRemove != null) {<a name="line.378"></a>
+<span class="sourceLineNo">379</span>        LOG.info("Terminate replication source for " + toRemove.getPeerId());<a name="line.379"></a>
+<span class="sourceLineNo">380</span>        toRemove.terminate(terminateMessage);<a name="line.380"></a>
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-<span class="sourceLineNo">383</span>    LOG.info("Startup replication source for " + src.getPeerId());<a name="line.383"></a>
-<span class="sourceLineNo">384</span>    src.startup();<a name="line.384"></a>
-<span class="sourceLineNo">385</span><a name="line.385"></a>
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-<span class="sourceLineNo">388</span>    synchronized (this.oldsources) {<a name="line.388"></a>
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+<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>    LOG.info("Startup replication source for " + src.getPeerId());<a name="line.386"></a>
+<span class="sourceLineNo">387</span>    src.startup();<a name="line.387"></a>
+<span class="sourceLineNo">388</span><a name="line.388"></a>
+<span class="sourceLineNo">389</span>    List&lt;ReplicationSourceInterface&gt; toStartup = new ArrayList&lt;&gt;();<a name="line.389"></a>
+<span class="sourceLineNo">390</span>    // synchronized on oldsources to avoid race with NodeFailoverWorker<a name="line.390"></a>
+<span class="sourceLineNo">391</span>    synchronized (this.oldsources) {<a name="line.391"></a>
+<span class="sourceLineNo">392</span>      List&lt;String&gt; previousQueueIds = new ArrayList&lt;&gt;();<a name="line.392"></a>
+<span class="sourceLineNo">393</span>      for (ReplicationSourceInterface oldSource : this.oldsources) {<a name="line.393"></a>
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+<span class="sourceLineNo">396</span>          oldSource.terminate(terminateMessage);<a name="line.396"></a>
+<span class="sourceLineNo">397</span>          this.oldsources.remove(oldSource);<a name="line.397"></a>
+<span class="sourceLineNo">398</span>        }<a name="line.398"></a>
+<span class="sourceLineNo">399</span>      }<a name="line.399"></a>
+<span class="sourceLineNo">400</span>      for (String queueId : previousQueueIds) {<a name="line.400"></a>
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+<span class="sourceLineNo">402</span>        this.oldsources.add(replicationSource);<a name="line.402"></a>
+<span class="sourceLineNo">403</span>        for (SortedSet&lt;String&gt; walsByGroup : walsByIdRecoveredQueues.get(queueId).values()) {<a name="line.403"></a>
+<span class="sourceLineNo">404</span>          walsByGroup.forEach(wal -&gt; src.enqueueLog(new Path(wal)));<a name="line.404"></a>
+<span class="sourceLineNo">405</span>        }<a name="line.405"></a>
+<span class="sourceLineNo">406</span>        toStartup.add(replicationSource);<a name="line.406"></a>
+<span class="sourceLineNo">407</span>      }<a name="line.407"></a>
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-<span class="sourceLineNo">409</span>  }<a name="line.409"></a>
-<span class="sourceLineNo">410</span><a name="line.410"></a>
-<span class="sourceLineNo">411</span>  /**<a name="line.411"></a>
-<span class="sourceLineNo">412</span>   * Clear the metrics and related replication queue of the specified old source<a name="line.412"></a>
-<span class="sourceLineNo">413</span>   * @param src source to clear<a name="line.413"></a>
-<span class="sourceLineNo">414</span>   */<a name="line.414"></a>
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-<span class="sourceLineNo">416</span>    LOG.info("Done with the recovered queue " + src.getQueueId());<a name="line.416"></a>
-<span class="sourceLineNo">417</span>    src.getSourceMetrics().clear();<a name="line.417"></a>
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-<span class="sourceLineNo">419</span>    // Delete queue from storage and memory<a name="line.419"></a>
-<span class="sourceLineNo">420</span>    deleteQueue(src.getQueueId());<a name="line.420"></a>
-<span class="sourceLineNo">421</span>    this.walsByIdRecoveredQueues.remove(src.getQueueId());<a name="line.421"></a>
-<span class="sourceLineNo">422</span>  }<a name="line.422"></a>
-<span class="sourceLineNo">423</span><a name="line.423"></a>
-<span class="sourceLineNo">424</span>  /**<a name="line.424"></a>
-<span class="sourceLineNo">425</span>   * Clear the metrics and related replication queue of the specified old source<a name="line.425"></a>
-<span class="sourceLineNo">426</span>   * @param src source to clear<a name="line.426"></a>
-<span class="sourceLineNo">427</span>   */<a name="line.427"></a>
-<span class="sourceLineNo">428</span>  void removeSource(ReplicationSourceInterface src) {<a name="line.428"></a>
-<span class="sourceLineNo">429</span>    LOG.info("Done with the queue " + src.getQueueId());<a name="line.429"></a>
-<span class="sourceLineNo">430</span>    src.getSourceMetrics().clear();<a name="line.430"></a>
-<span class="sourceLineNo">431</span>    this.sources.remove(src.getPeerId());<a name="line.431"></a>
-<span class="sourceLineNo">432</span>    // Delete queue from storage and memory<a name="line.432"></a>
-<span class="sourceLineNo">433</span>    deleteQueue(src.getQueueId());<a name="line.433"></a>
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-<span class="sourceLineNo">436</span><a name="line.436"></a>
-<span class="sourceLineNo">437</span>  /**<a name="line.437"></a>
-<span class="sourceLineNo">438</span>   * Delete a complete queue of wals associated with a replication source<a name="line.438"></a>
-<span class="sourceLineNo">439</span>   * @param queueId the id of replication queue to delete<a name="line.439"></a>
-<span class="sourceLineNo">440</span>   */<a name="line.440"></a>
-<span class="sourceLineNo">441</span>  private void deleteQueue(String queueId) {<a name="line.441"></a>
-<span class="sourceLineNo">442</span>    abortWhenFail(() -&gt; this.queueStorage.removeQueue(server.getServerName(), queueId));<a name="line.442"></a>
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-<span class="sourceLineNo">444</span><a name="line.444"></a>
-<span class="sourceLineNo">445</span>  @FunctionalInterface<a name="line.445"></a>
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-<span class="sourceLineNo">449</span><a name="line.449"></a>
-<span class="sourceLineNo">450</span>  private void abortWhenFail(ReplicationQueueOperation op) {<a name="line.450"></a>
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-<span class="sourceLineNo">452</span>      op.exec();<a name="line.452"></a>
-<span class="sourceLineNo">453</span>    } catch (ReplicationException e) {<a name="line.453"></a>
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-<span class="sourceLineNo">455</span>    }<a name="line.455"></a>
-<span class="sourceLineNo">456</span>  }<a name="line.456"></a>
-<span class="sourceLineNo">457</span><a name="line.457"></a>
-<span class="sourceLineNo">458</span>  private void throwIOExceptionWhenFail(ReplicationQueueOperation op) throws IOException {<a name="line.458"></a>
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-<span class="sourceLineNo">461</span>    } catch (ReplicationException e) {<a name="line.461"></a>
-<span class="sourceLineNo">462</span>      throw new IOException(e);<a name="line.462"></a>
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-<span class="sourceLineNo">465</span><a name="line.465"></a>
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-<span class="sourceLineNo">468</span>      op.exec();<a name="line.468"></a>
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-<span class="sourceLineNo">471</span>      throw new IOException(e);<a name="line.471"></a>
-<span class="sourceLineNo">472</span>    }<a name="line.472"></a>
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-<span class="sourceLineNo">474</span><a name="line.474"></a>
-<span class="sourceLineNo">475</span>  /**<a name="line.475"></a>
-<span class="sourceLineNo">476</span>   * This method will log the current position to storage. And also clean old logs from the<a name="line.476"></a>
-<span class="sourceLineNo">477</span>   * replication queue.<a name="line.477"></a>
-<span class="sourceLineNo">478</span>   * @param log Path to the log currently being replicated<a name="line.478"></a>
-<span class="sourceLineNo">479</span>   * @param queueId id of the replication queue<a name="line.479"></a>
-<span class="sourceLineNo">480</span>   * @param position current location in the log<a name="line.480"></a>
-<span class="sourceLineNo">481</span>   * @param queueRecovered indicates if this queue comes from another region server<a name="line.481"></a>
-<span class="sourceLineNo">482</span>   */

<TRUNCATED>

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