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<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a>
<span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a>
<span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a>
<span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a>
<span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a>
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.replication.regionserver;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.io.EOFException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.ArrayList;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.List;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.concurrent.locks.Lock;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import org.apache.hadoop.conf.Configuration;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.FileSystem;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.Path;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.executor.EventType;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.procedure2.RSProcedureCallable;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.protobuf.ReplicationProtobufUtil;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.regionserver.HRegionServer;<a name="line.33"></a>
<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.34"></a>
<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.util.KeyLocker;<a name="line.35"></a>
<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.36"></a>
<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.RecoverLeaseFSUtils;<a name="line.37"></a>
<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.38"></a>
<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.wal.WAL.Reader;<a name="line.39"></a>
<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.wal.WALEdit;<a name="line.40"></a>
<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.wal.WALFactory;<a name="line.41"></a>
<span class="sourceLineNo">042</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.42"></a>
<span class="sourceLineNo">043</span>import org.slf4j.Logger;<a name="line.43"></a>
<span class="sourceLineNo">044</span>import org.slf4j.LoggerFactory;<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span>import org.apache.hbase.thirdparty.com.google.protobuf.InvalidProtocolBufferException;<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos;<a name="line.48"></a>
<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryRequest;<a name="line.49"></a>
<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos.ReplaySyncReplicationWALParameter;<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>/**<a name="line.52"></a>
<span class="sourceLineNo">053</span> * This callable executed at RS side to replay sync replication wal.<a name="line.53"></a>
<span class="sourceLineNo">054</span> */<a name="line.54"></a>
<span class="sourceLineNo">055</span>@InterfaceAudience.Private<a name="line.55"></a>
<span class="sourceLineNo">056</span>public class ReplaySyncReplicationWALCallable implements RSProcedureCallable {<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span> private static final Logger LOG = LoggerFactory.getLogger(ReplaySyncReplicationWALCallable.class);<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span> private static final String REPLAY_SYNC_REPLICATION_WAL_BATCH_SIZE =<a name="line.60"></a>
<span class="sourceLineNo">061</span> "hbase.replay.sync.replication.wal.batch.size";<a name="line.61"></a>
<span class="sourceLineNo">062</span><a name="line.62"></a>
<span class="sourceLineNo">063</span> private static final long DEFAULT_REPLAY_SYNC_REPLICATION_WAL_BATCH_SIZE = 8 * 1024 * 1024;<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span> private HRegionServer rs;<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span> private FileSystem fs;<a name="line.67"></a>
<span class="sourceLineNo">068</span><a name="line.68"></a>
<span class="sourceLineNo">069</span> private Configuration conf;<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span> private String peerId;<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span> private List&lt;String&gt; wals = new ArrayList&lt;&gt;();<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span> private Exception initError;<a name="line.75"></a>
<span class="sourceLineNo">076</span><a name="line.76"></a>
<span class="sourceLineNo">077</span> private long batchSize;<a name="line.77"></a>
<span class="sourceLineNo">078</span><a name="line.78"></a>
<span class="sourceLineNo">079</span> private final KeyLocker&lt;String&gt; peersLock = new KeyLocker&lt;&gt;();<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span> @Override<a name="line.81"></a>
<span class="sourceLineNo">082</span> public Void call() throws Exception {<a name="line.82"></a>
<span class="sourceLineNo">083</span> if (initError != null) {<a name="line.83"></a>
<span class="sourceLineNo">084</span> throw initError;<a name="line.84"></a>
<span class="sourceLineNo">085</span> }<a name="line.85"></a>
<span class="sourceLineNo">086</span> LOG.info("Received a replay sync replication wals {} event, peerId={}", wals, peerId);<a name="line.86"></a>
<span class="sourceLineNo">087</span> if (rs.getReplicationSinkService() != null) {<a name="line.87"></a>
<span class="sourceLineNo">088</span> Lock peerLock = peersLock.acquireLock(wals.get(0));<a name="line.88"></a>
<span class="sourceLineNo">089</span> try {<a name="line.89"></a>
<span class="sourceLineNo">090</span> for (String wal : wals) {<a name="line.90"></a>
<span class="sourceLineNo">091</span> replayWAL(wal);<a name="line.91"></a>
<span class="sourceLineNo">092</span> }<a name="line.92"></a>
<span class="sourceLineNo">093</span> } finally {<a name="line.93"></a>
<span class="sourceLineNo">094</span> peerLock.unlock();<a name="line.94"></a>
<span class="sourceLineNo">095</span> }<a name="line.95"></a>
<span class="sourceLineNo">096</span> }<a name="line.96"></a>
<span class="sourceLineNo">097</span> return null;<a name="line.97"></a>
<span class="sourceLineNo">098</span> }<a name="line.98"></a>
<span class="sourceLineNo">099</span><a name="line.99"></a>
<span class="sourceLineNo">100</span> @Override<a name="line.100"></a>
<span class="sourceLineNo">101</span> public void init(byte[] parameter, HRegionServer rs) {<a name="line.101"></a>
<span class="sourceLineNo">102</span> this.rs = rs;<a name="line.102"></a>
<span class="sourceLineNo">103</span> this.fs = rs.getWALFileSystem();<a name="line.103"></a>
<span class="sourceLineNo">104</span> this.conf = rs.getConfiguration();<a name="line.104"></a>
<span class="sourceLineNo">105</span> try {<a name="line.105"></a>
<span class="sourceLineNo">106</span> ReplaySyncReplicationWALParameter param =<a name="line.106"></a>
<span class="sourceLineNo">107</span> ReplaySyncReplicationWALParameter.parseFrom(parameter);<a name="line.107"></a>
<span class="sourceLineNo">108</span> this.peerId = param.getPeerId();<a name="line.108"></a>
<span class="sourceLineNo">109</span> param.getWalList().forEach(this.wals::add);<a name="line.109"></a>
<span class="sourceLineNo">110</span> this.batchSize = rs.getConfiguration().getLong(REPLAY_SYNC_REPLICATION_WAL_BATCH_SIZE,<a name="line.110"></a>
<span class="sourceLineNo">111</span> DEFAULT_REPLAY_SYNC_REPLICATION_WAL_BATCH_SIZE);<a name="line.111"></a>
<span class="sourceLineNo">112</span> } catch (InvalidProtocolBufferException e) {<a name="line.112"></a>
<span class="sourceLineNo">113</span> initError = e;<a name="line.113"></a>
<span class="sourceLineNo">114</span> }<a name="line.114"></a>
<span class="sourceLineNo">115</span> }<a name="line.115"></a>
<span class="sourceLineNo">116</span><a name="line.116"></a>
<span class="sourceLineNo">117</span> @Override<a name="line.117"></a>
<span class="sourceLineNo">118</span> public EventType getEventType() {<a name="line.118"></a>
<span class="sourceLineNo">119</span> return EventType.RS_REPLAY_SYNC_REPLICATION_WAL;<a name="line.119"></a>
<span class="sourceLineNo">120</span> }<a name="line.120"></a>
<span class="sourceLineNo">121</span><a name="line.121"></a>
<span class="sourceLineNo">122</span> private void replayWAL(String wal) throws IOException {<a name="line.122"></a>
<span class="sourceLineNo">123</span> try (Reader reader = getReader(wal)) {<a name="line.123"></a>
<span class="sourceLineNo">124</span> List&lt;Entry&gt; entries = readWALEntries(reader);<a name="line.124"></a>
<span class="sourceLineNo">125</span> while (!entries.isEmpty()) {<a name="line.125"></a>
<span class="sourceLineNo">126</span> Pair&lt;AdminProtos.ReplicateWALEntryRequest, CellScanner&gt; pair = ReplicationProtobufUtil<a name="line.126"></a>
<span class="sourceLineNo">127</span> .buildReplicateWALEntryRequest(entries.toArray(new Entry[entries.size()]));<a name="line.127"></a>
<span class="sourceLineNo">128</span> ReplicateWALEntryRequest request = pair.getFirst();<a name="line.128"></a>
<span class="sourceLineNo">129</span> rs.getReplicationSinkService().replicateLogEntries(request.getEntryList(),<a name="line.129"></a>
<span class="sourceLineNo">130</span> pair.getSecond(), request.getReplicationClusterId(),<a name="line.130"></a>
<span class="sourceLineNo">131</span> request.getSourceBaseNamespaceDirPath(), request.getSourceHFileArchiveDirPath());<a name="line.131"></a>
<span class="sourceLineNo">132</span> // Read next entries.<a name="line.132"></a>
<span class="sourceLineNo">133</span> entries = readWALEntries(reader);<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span> }<a name="line.135"></a>
<span class="sourceLineNo">136</span> }<a name="line.136"></a>
<span class="sourceLineNo">137</span><a name="line.137"></a>
<span class="sourceLineNo">138</span> private Reader getReader(String wal) throws IOException {<a name="line.138"></a>
<span class="sourceLineNo">139</span> Path path = new Path(rs.getWALRootDir(), wal);<a name="line.139"></a>
<span class="sourceLineNo">140</span> long length = rs.getWALFileSystem().getFileStatus(path).getLen();<a name="line.140"></a>
<span class="sourceLineNo">141</span> try {<a name="line.141"></a>
<span class="sourceLineNo">142</span> RecoverLeaseFSUtils.recoverFileLease(fs, path, conf);<a name="line.142"></a>
<span class="sourceLineNo">143</span> return WALFactory.createReader(rs.getWALFileSystem(), path, rs.getConfiguration());<a name="line.143"></a>
<span class="sourceLineNo">144</span> } catch (EOFException e) {<a name="line.144"></a>
<span class="sourceLineNo">145</span> if (length &lt;= 0) {<a name="line.145"></a>
<span class="sourceLineNo">146</span> LOG.warn("File is empty. Could not open {} for reading because {}", path, e);<a name="line.146"></a>
<span class="sourceLineNo">147</span> return null;<a name="line.147"></a>
<span class="sourceLineNo">148</span> }<a name="line.148"></a>
<span class="sourceLineNo">149</span> throw e;<a name="line.149"></a>
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span> }<a name="line.151"></a>
<span class="sourceLineNo">152</span><a name="line.152"></a>
<span class="sourceLineNo">153</span> // return whether we should include this entry.<a name="line.153"></a>
<span class="sourceLineNo">154</span> private boolean filter(Entry entry) {<a name="line.154"></a>
<span class="sourceLineNo">155</span> WALEdit edit = entry.getEdit();<a name="line.155"></a>
<span class="sourceLineNo">156</span> WALUtil.filterCells(edit, c -&gt; CellUtil.matchingFamily(c, WALEdit.METAFAMILY) ? null : c);<a name="line.156"></a>
<span class="sourceLineNo">157</span> return !edit.isEmpty();<a name="line.157"></a>
<span class="sourceLineNo">158</span> }<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> private List&lt;Entry&gt; readWALEntries(Reader reader) throws IOException {<a name="line.160"></a>
<span class="sourceLineNo">161</span> List&lt;Entry&gt; entries = new ArrayList&lt;&gt;();<a name="line.161"></a>
<span class="sourceLineNo">162</span> if (reader == null) {<a name="line.162"></a>
<span class="sourceLineNo">163</span> return entries;<a name="line.163"></a>
<span class="sourceLineNo">164</span> }<a name="line.164"></a>
<span class="sourceLineNo">165</span> long size = 0;<a name="line.165"></a>
<span class="sourceLineNo">166</span> for (;;) {<a name="line.166"></a>
<span class="sourceLineNo">167</span> Entry entry = reader.next();<a name="line.167"></a>
<span class="sourceLineNo">168</span> if (entry == null) {<a name="line.168"></a>
<span class="sourceLineNo">169</span> break;<a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span> if (filter(entry)) {<a name="line.171"></a>
<span class="sourceLineNo">172</span> entries.add(entry);<a name="line.172"></a>
<span class="sourceLineNo">173</span> size += entry.getEdit().heapSize();<a name="line.173"></a>
<span class="sourceLineNo">174</span> if (size &gt; batchSize) {<a name="line.174"></a>
<span class="sourceLineNo">175</span> break;<a name="line.175"></a>
<span class="sourceLineNo">176</span> }<a name="line.176"></a>
<span class="sourceLineNo">177</span> }<a name="line.177"></a>
<span class="sourceLineNo">178</span> }<a name="line.178"></a>
<span class="sourceLineNo">179</span> return entries;<a name="line.179"></a>
<span class="sourceLineNo">180</span> }<a name="line.180"></a>
<span class="sourceLineNo">181</span>}<a name="line.181"></a>
</pre>
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