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