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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.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 org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.fs.FileSystem;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.fs.Path;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.client.RegionInfo;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutput;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.io.asyncfs.monitor.StreamSlowMonitor;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.hadoop.hbase.regionserver.wal.WALUtil;</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.util.Pair;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.yetus.audience.InterfaceStability;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.slf4j.Logger;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">039</span><span id="line-39"></span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hbase.thirdparty.com.google.common.base.Throwables;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hbase.thirdparty.io.netty.channel.Channel;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;</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"> * A WAL provider that use {@link AsyncFSWAL}.</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">@InterfaceStability.Evolving</span> |
| <span class="source-line-no">049</span><span id="line-49">public class AsyncFSWALProvider extends AbstractFSWALProvider<AsyncFSWAL> {</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private static final Logger LOG = LoggerFactory.getLogger(AsyncFSWALProvider.class);</span> |
| <span class="source-line-no">052</span><span id="line-52"></span> |
| <span class="source-line-no">053</span><span id="line-53"> public static final String WRITER_IMPL = "hbase.regionserver.wal.async.writer.impl";</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55"> // Only public so classes back in regionserver.wal can access</span> |
| <span class="source-line-no">056</span><span id="line-56"> public interface AsyncWriter extends WALProvider.AsyncWriter {</span> |
| <span class="source-line-no">057</span><span id="line-57"> /**</span> |
| <span class="source-line-no">058</span><span id="line-58"> * @throws IOException if something goes wrong initializing an output stream</span> |
| <span class="source-line-no">059</span><span id="line-59"> * @throws StreamLacksCapabilityException if the given FileSystem can't provide streams that</span> |
| <span class="source-line-no">060</span><span id="line-60"> * meet the needs of the given Writer implementation.</span> |
| <span class="source-line-no">061</span><span id="line-61"> */</span> |
| <span class="source-line-no">062</span><span id="line-62"> void init(FileSystem fs, Path path, Configuration c, boolean overwritable, long blocksize,</span> |
| <span class="source-line-no">063</span><span id="line-63"> StreamSlowMonitor monitor) throws IOException, CommonFSUtils.StreamLacksCapabilityException;</span> |
| <span class="source-line-no">064</span><span id="line-64"> }</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"> * Protected visibility for used in tests.</span> |
| <span class="source-line-no">068</span><span id="line-68"> */</span> |
| <span class="source-line-no">069</span><span id="line-69"> protected EventLoopGroup eventLoopGroup;</span> |
| <span class="source-line-no">070</span><span id="line-70"></span> |
| <span class="source-line-no">071</span><span id="line-71"> /**</span> |
| <span class="source-line-no">072</span><span id="line-72"> * Protected visibility for used in tests.</span> |
| <span class="source-line-no">073</span><span id="line-73"> */</span> |
| <span class="source-line-no">074</span><span id="line-74"> protected Class<? extends Channel> channelClass;</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> @Override</span> |
| <span class="source-line-no">077</span><span id="line-77"> protected AsyncFSWAL createWAL() throws IOException {</span> |
| <span class="source-line-no">078</span><span id="line-78"> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), this.abortable,</span> |
| <span class="source-line-no">079</span><span id="line-79"> CommonFSUtils.getWALRootDir(conf), getWALDirectoryName(factory.factoryId),</span> |
| <span class="source-line-no">080</span><span id="line-80"> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, logPrefix,</span> |
| <span class="source-line-no">081</span><span id="line-81"> META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null, null, null,</span> |
| <span class="source-line-no">082</span><span id="line-82"> eventLoopGroup, channelClass,</span> |
| <span class="source-line-no">083</span><span id="line-83"> factory.getExcludeDatanodeManager().getStreamSlowMonitor(providerId));</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 WAL createRemoteWAL(RegionInfo region, FileSystem remoteFs, Path remoteWALDir,</span> |
| <span class="source-line-no">088</span><span id="line-88"> String prefix, String suffix) throws IOException {</span> |
| <span class="source-line-no">089</span><span id="line-89"> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), this.abortable,</span> |
| <span class="source-line-no">090</span><span id="line-90"> CommonFSUtils.getWALRootDir(conf), getWALDirectoryName(factory.factoryId),</span> |
| <span class="source-line-no">091</span><span id="line-91"> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, prefix, suffix,</span> |
| <span class="source-line-no">092</span><span id="line-92"> remoteFs, remoteWALDir, eventLoopGroup, channelClass,</span> |
| <span class="source-line-no">093</span><span id="line-93"> factory.getExcludeDatanodeManager().getStreamSlowMonitor(providerId));</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"> protected void doInit(Configuration conf) throws IOException {</span> |
| <span class="source-line-no">098</span><span id="line-98"> Pair<EventLoopGroup, Class<? extends Channel>> eventLoopGroupAndChannelClass =</span> |
| <span class="source-line-no">099</span><span id="line-99"> NettyAsyncFSWALConfigHelper.getEventLoopConfig(conf);</span> |
| <span class="source-line-no">100</span><span id="line-100"> eventLoopGroup = eventLoopGroupAndChannelClass.getFirst();</span> |
| <span class="source-line-no">101</span><span id="line-101"> channelClass = eventLoopGroupAndChannelClass.getSecond();</span> |
| <span class="source-line-no">102</span><span id="line-102"> }</span> |
| <span class="source-line-no">103</span><span id="line-103"></span> |
| <span class="source-line-no">104</span><span id="line-104"> /**</span> |
| <span class="source-line-no">105</span><span id="line-105"> * Public because of AsyncFSWAL. Should be package-private</span> |
| <span class="source-line-no">106</span><span id="line-106"> */</span> |
| <span class="source-line-no">107</span><span id="line-107"> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,</span> |
| <span class="source-line-no">108</span><span id="line-108"> boolean overwritable, EventLoopGroup eventLoopGroup, Class<? extends Channel> channelClass)</span> |
| <span class="source-line-no">109</span><span id="line-109"> throws IOException {</span> |
| <span class="source-line-no">110</span><span id="line-110"> return createAsyncWriter(conf, fs, path, overwritable, WALUtil.getWALBlockSize(conf, fs, path),</span> |
| <span class="source-line-no">111</span><span id="line-111"> eventLoopGroup, channelClass, StreamSlowMonitor.create(conf, path.getName()));</span> |
| <span class="source-line-no">112</span><span id="line-112"> }</span> |
| <span class="source-line-no">113</span><span id="line-113"></span> |
| <span class="source-line-no">114</span><span id="line-114"> /**</span> |
| <span class="source-line-no">115</span><span id="line-115"> * Public because of AsyncFSWAL. Should be package-private</span> |
| <span class="source-line-no">116</span><span id="line-116"> */</span> |
| <span class="source-line-no">117</span><span id="line-117"> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,</span> |
| <span class="source-line-no">118</span><span id="line-118"> boolean overwritable, long blocksize, EventLoopGroup eventLoopGroup,</span> |
| <span class="source-line-no">119</span><span id="line-119"> Class<? extends Channel> channelClass, StreamSlowMonitor monitor) throws IOException {</span> |
| <span class="source-line-no">120</span><span id="line-120"> // Configuration already does caching for the Class lookup.</span> |
| <span class="source-line-no">121</span><span id="line-121"> Class<? extends AsyncWriter> logWriterClass =</span> |
| <span class="source-line-no">122</span><span id="line-122"> conf.getClass(WRITER_IMPL, AsyncProtobufLogWriter.class, AsyncWriter.class);</span> |
| <span class="source-line-no">123</span><span id="line-123"> try {</span> |
| <span class="source-line-no">124</span><span id="line-124"> AsyncWriter writer = logWriterClass.getConstructor(EventLoopGroup.class, Class.class)</span> |
| <span class="source-line-no">125</span><span id="line-125"> .newInstance(eventLoopGroup, channelClass);</span> |
| <span class="source-line-no">126</span><span id="line-126"> writer.init(fs, path, conf, overwritable, blocksize, monitor);</span> |
| <span class="source-line-no">127</span><span id="line-127"> return writer;</span> |
| <span class="source-line-no">128</span><span id="line-128"> } catch (Exception e) {</span> |
| <span class="source-line-no">129</span><span id="line-129"> if (e instanceof CommonFSUtils.StreamLacksCapabilityException) {</span> |
| <span class="source-line-no">130</span><span id="line-130"> LOG.error("The RegionServer async write ahead log provider "</span> |
| <span class="source-line-no">131</span><span id="line-131"> + "relies on the ability to call " + e.getMessage() + " for proper operation during "</span> |
| <span class="source-line-no">132</span><span id="line-132"> + "component failures, but the current FileSystem does not support doing so. Please "</span> |
| <span class="source-line-no">133</span><span id="line-133"> + "check the config value of '" + CommonFSUtils.HBASE_WAL_DIR + "' and ensure "</span> |
| <span class="source-line-no">134</span><span id="line-134"> + "it points to a FileSystem mount that has suitable capabilities for output streams.");</span> |
| <span class="source-line-no">135</span><span id="line-135"> } else {</span> |
| <span class="source-line-no">136</span><span id="line-136"> LOG.debug("Error instantiating log writer.", 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"> Throwables.propagateIfPossible(e, IOException.class);</span> |
| <span class="source-line-no">139</span><span id="line-139"> throw new IOException("cannot get log writer", e);</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"></span> |
| <span class="source-line-no">143</span><span id="line-143"> /**</span> |
| <span class="source-line-no">144</span><span id="line-144"> * Test whether we can load the helper classes for async dfs output.</span> |
| <span class="source-line-no">145</span><span id="line-145"> */</span> |
| <span class="source-line-no">146</span><span id="line-146"> public static boolean load() {</span> |
| <span class="source-line-no">147</span><span id="line-147"> try {</span> |
| <span class="source-line-no">148</span><span id="line-148"> Class.forName(FanOutOneBlockAsyncDFSOutput.class.getName());</span> |
| <span class="source-line-no">149</span><span id="line-149"> Class.forName(FanOutOneBlockAsyncDFSOutputHelper.class.getName());</span> |
| <span class="source-line-no">150</span><span id="line-150"> Class.forName(FanOutOneBlockAsyncDFSOutputSaslHelper.class.getName());</span> |
| <span class="source-line-no">151</span><span id="line-151"> return true;</span> |
| <span class="source-line-no">152</span><span id="line-152"> } catch (Throwable e) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> return false;</span> |
| <span class="source-line-no">154</span><span id="line-154"> }</span> |
| <span class="source-line-no">155</span><span id="line-155"> }</span> |
| <span class="source-line-no">156</span><span id="line-156">}</span> |
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