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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.regionserver.wal;</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.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.OutputStream;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.util.concurrent.atomic.AtomicLong;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.fs.FSDataOutputStream;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.fs.FSDataOutputStreamBuilder;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.fs.StreamCapabilities;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.io.asyncfs.monitor.StreamSlowMonitor;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.util.AtomicUtils;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.apache.hadoop.hbase.util.CommonFSUtils;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;</span> |
| <span class="source-line-no">034</span><span id="line-34">import org.apache.hadoop.hbase.wal.FSHLogProvider;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.wal.WAL.Entry;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hdfs.DistributedFileSystem;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.Logger;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer;</span> |
| <span class="source-line-no">043</span><span id="line-43"></span> |
| <span class="source-line-no">044</span><span id="line-44">/**</span> |
| <span class="source-line-no">045</span><span id="line-45"> * Writer for protobuf-based WAL.</span> |
| <span class="source-line-no">046</span><span id="line-46"> */</span> |
| <span class="source-line-no">047</span><span id="line-47">@InterfaceAudience.Private</span> |
| <span class="source-line-no">048</span><span id="line-48">public class ProtobufLogWriter extends AbstractProtobufLogWriter implements FSHLogProvider.Writer {</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> private static final Logger LOG = LoggerFactory.getLogger(ProtobufLogWriter.class);</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> protected FSDataOutputStream output;</span> |
| <span class="source-line-no">053</span><span id="line-53"></span> |
| <span class="source-line-no">054</span><span id="line-54"> private final AtomicLong syncedLength = new AtomicLong(0);</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> @Override</span> |
| <span class="source-line-no">057</span><span id="line-57"> public void append(Entry entry) throws IOException {</span> |
| <span class="source-line-no">058</span><span id="line-58"> entry.getKey().getBuilder(compressor).setFollowingKvCount(entry.getEdit().size()).build()</span> |
| <span class="source-line-no">059</span><span id="line-59"> .writeDelimitedTo(output);</span> |
| <span class="source-line-no">060</span><span id="line-60"> for (Cell cell : entry.getEdit().getCells()) {</span> |
| <span class="source-line-no">061</span><span id="line-61"> // cellEncoder must assume little about the stream, since we write PB and cells in turn.</span> |
| <span class="source-line-no">062</span><span id="line-62"> cellEncoder.write((ExtendedCell) cell);</span> |
| <span class="source-line-no">063</span><span id="line-63"> }</span> |
| <span class="source-line-no">064</span><span id="line-64"> length.set(output.getPos());</span> |
| <span class="source-line-no">065</span><span id="line-65"> }</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67"> @Override</span> |
| <span class="source-line-no">068</span><span id="line-68"> public void close() throws IOException {</span> |
| <span class="source-line-no">069</span><span id="line-69"> if (this.output != null) {</span> |
| <span class="source-line-no">070</span><span id="line-70"> if (!trailerWritten) {</span> |
| <span class="source-line-no">071</span><span id="line-71"> writeWALTrailer();</span> |
| <span class="source-line-no">072</span><span id="line-72"> }</span> |
| <span class="source-line-no">073</span><span id="line-73"> this.output.close();</span> |
| <span class="source-line-no">074</span><span id="line-74"> this.output = null;</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"> }</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> @Override</span> |
| <span class="source-line-no">079</span><span id="line-79"> public void sync(boolean forceSync) throws IOException {</span> |
| <span class="source-line-no">080</span><span id="line-80"> FSDataOutputStream fsdos = this.output;</span> |
| <span class="source-line-no">081</span><span id="line-81"> if (fsdos == null) {</span> |
| <span class="source-line-no">082</span><span id="line-82"> return; // Presume closed</span> |
| <span class="source-line-no">083</span><span id="line-83"> }</span> |
| <span class="source-line-no">084</span><span id="line-84"> fsdos.flush();</span> |
| <span class="source-line-no">085</span><span id="line-85"> if (forceSync) {</span> |
| <span class="source-line-no">086</span><span id="line-86"> fsdos.hsync();</span> |
| <span class="source-line-no">087</span><span id="line-87"> } else {</span> |
| <span class="source-line-no">088</span><span id="line-88"> fsdos.hflush();</span> |
| <span class="source-line-no">089</span><span id="line-89"> }</span> |
| <span class="source-line-no">090</span><span id="line-90"> AtomicUtils.updateMax(this.syncedLength, fsdos.getPos());</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"></span> |
| <span class="source-line-no">093</span><span id="line-93"> @Override</span> |
| <span class="source-line-no">094</span><span id="line-94"> public long getSyncedLength() {</span> |
| <span class="source-line-no">095</span><span id="line-95"> return this.syncedLength.get();</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> public FSDataOutputStream getStream() {</span> |
| <span class="source-line-no">099</span><span id="line-99"> return this.output;</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> @Override</span> |
| <span class="source-line-no">103</span><span id="line-103"> protected void initOutput(FileSystem fs, Path path, boolean overwritable, int bufferSize,</span> |
| <span class="source-line-no">104</span><span id="line-104"> short replication, long blockSize, StreamSlowMonitor monitor, boolean noLocalWrite)</span> |
| <span class="source-line-no">105</span><span id="line-105"> throws IOException, StreamLacksCapabilityException {</span> |
| <span class="source-line-no">106</span><span id="line-106"> FSDataOutputStreamBuilder<?, ?> builder = fs.createFile(path).overwrite(overwritable)</span> |
| <span class="source-line-no">107</span><span id="line-107"> .bufferSize(bufferSize).replication(replication).blockSize(blockSize);</span> |
| <span class="source-line-no">108</span><span id="line-108"> if (builder instanceof DistributedFileSystem.HdfsDataOutputStreamBuilder) {</span> |
| <span class="source-line-no">109</span><span id="line-109"> DistributedFileSystem.HdfsDataOutputStreamBuilder dfsBuilder =</span> |
| <span class="source-line-no">110</span><span id="line-110"> (DistributedFileSystem.HdfsDataOutputStreamBuilder) builder;</span> |
| <span class="source-line-no">111</span><span id="line-111"> dfsBuilder.replicate();</span> |
| <span class="source-line-no">112</span><span id="line-112"> if (noLocalWrite) {</span> |
| <span class="source-line-no">113</span><span id="line-113"> dfsBuilder.noLocalWrite();</span> |
| <span class="source-line-no">114</span><span id="line-114"> }</span> |
| <span class="source-line-no">115</span><span id="line-115"> this.output = dfsBuilder.build();</span> |
| <span class="source-line-no">116</span><span id="line-116"> } else {</span> |
| <span class="source-line-no">117</span><span id="line-117"> this.output = builder.build();</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> if (fs.getConf().getBoolean(CommonFSUtils.UNSAFE_STREAM_CAPABILITY_ENFORCE, true)) {</span> |
| <span class="source-line-no">121</span><span id="line-121"> if (!output.hasCapability(StreamCapabilities.HFLUSH)) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> throw new StreamLacksCapabilityException(StreamCapabilities.HFLUSH);</span> |
| <span class="source-line-no">123</span><span id="line-123"> }</span> |
| <span class="source-line-no">124</span><span id="line-124"> if (!output.hasCapability(StreamCapabilities.HSYNC)) {</span> |
| <span class="source-line-no">125</span><span id="line-125"> throw new StreamLacksCapabilityException(StreamCapabilities.HSYNC);</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"> }</span> |
| <span class="source-line-no">128</span><span id="line-128"> }</span> |
| <span class="source-line-no">129</span><span id="line-129"></span> |
| <span class="source-line-no">130</span><span id="line-130"> @Override</span> |
| <span class="source-line-no">131</span><span id="line-131"> protected void closeOutputIfNecessary() {</span> |
| <span class="source-line-no">132</span><span id="line-132"> if (this.output != null) {</span> |
| <span class="source-line-no">133</span><span id="line-133"> try {</span> |
| <span class="source-line-no">134</span><span id="line-134"> this.output.close();</span> |
| <span class="source-line-no">135</span><span id="line-135"> } catch (IOException e) {</span> |
| <span class="source-line-no">136</span><span id="line-136"> LOG.warn("Close output failed", e);</span> |
| <span class="source-line-no">137</span><span id="line-137"> }</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"> }</span> |
| <span class="source-line-no">140</span><span id="line-140"></span> |
| <span class="source-line-no">141</span><span id="line-141"> @Override</span> |
| <span class="source-line-no">142</span><span id="line-142"> protected long writeMagicAndWALHeader(byte[] magic, WALHeader header) throws IOException {</span> |
| <span class="source-line-no">143</span><span id="line-143"> output.write(magic);</span> |
| <span class="source-line-no">144</span><span id="line-144"> header.writeDelimitedTo(output);</span> |
| <span class="source-line-no">145</span><span id="line-145"> return output.getPos();</span> |
| <span class="source-line-no">146</span><span id="line-146"> }</span> |
| <span class="source-line-no">147</span><span id="line-147"></span> |
| <span class="source-line-no">148</span><span id="line-148"> @Override</span> |
| <span class="source-line-no">149</span><span id="line-149"> protected OutputStream getOutputStreamForCellEncoder() {</span> |
| <span class="source-line-no">150</span><span id="line-150"> return this.output;</span> |
| <span class="source-line-no">151</span><span id="line-151"> }</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> @Override</span> |
| <span class="source-line-no">154</span><span id="line-154"> protected long writeWALTrailerAndMagic(WALTrailer trailer, byte[] magic) throws IOException {</span> |
| <span class="source-line-no">155</span><span id="line-155"> trailer.writeTo(output);</span> |
| <span class="source-line-no">156</span><span id="line-156"> output.writeInt(trailer.getSerializedSize());</span> |
| <span class="source-line-no">157</span><span id="line-157"> output.write(magic);</span> |
| <span class="source-line-no">158</span><span id="line-158"> return output.getPos();</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160">}</span> |
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