| <!DOCTYPE HTML> |
| <html lang="en"> |
| <head> |
| <!-- Generated by javadoc (17) --> |
| <title>Source code</title> |
| <meta name="viewport" content="width=device-width, initial-scale=1"> |
| <meta name="description" content="source: package: org.apache.hadoop.hbase.client, class: ConnectionUtils, interface: RpcCall"> |
| <meta name="generator" content="javadoc/SourceToHTMLConverter"> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body class="source-page"> |
| <main role="main"> |
| <div class="source-container"> |
| <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.client;</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 static java.util.stream.Collectors.toList;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.HConstants.EMPTY_END_ROW;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.HConstants.EMPTY_START_ROW;</span> |
| <span class="source-line-no">023</span><span id="line-23">import static org.apache.hadoop.hbase.util.FutureUtils.addListener;</span> |
| <span class="source-line-no">024</span><span id="line-24"></span> |
| <span class="source-line-no">025</span><span id="line-25">import java.io.IOException;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.lang.reflect.UndeclaredThrowableException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.net.UnknownHostException;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.Arrays;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.List;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.Optional;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.CompletableFuture;</span> |
| <span class="source-line-no">032</span><span id="line-32">import java.util.concurrent.ExecutorService;</span> |
| <span class="source-line-no">033</span><span id="line-33">import java.util.concurrent.ThreadLocalRandom;</span> |
| <span class="source-line-no">034</span><span id="line-34">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">035</span><span id="line-35">import java.util.concurrent.atomic.AtomicReference;</span> |
| <span class="source-line-no">036</span><span id="line-36">import java.util.function.Function;</span> |
| <span class="source-line-no">037</span><span id="line-37">import java.util.function.Predicate;</span> |
| <span class="source-line-no">038</span><span id="line-38">import java.util.function.Supplier;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.Cell;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.CellComparator;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.ExtendedCell;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.hadoop.hbase.PrivateCellUtil;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.apache.hadoop.hbase.RegionLocations;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">049</span><span id="line-49">import org.apache.hadoop.hbase.client.metrics.ScanMetrics;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hadoop.hbase.ipc.FatalConnectionException;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hadoop.hbase.ipc.HBaseRpcController;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hadoop.hbase.ipc.ServerRpcController;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hadoop.hbase.util.Bytes;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hadoop.hbase.util.ReflectionUtils;</span> |
| <span class="source-line-no">055</span><span id="line-55">import org.apache.hadoop.ipc.RemoteException;</span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hadoop.net.DNS;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">058</span><span id="line-58">import org.slf4j.Logger;</span> |
| <span class="source-line-no">059</span><span id="line-59">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">060</span><span id="line-60"></span> |
| <span class="source-line-no">061</span><span id="line-61">import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;</span> |
| <span class="source-line-no">062</span><span id="line-62">import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;</span> |
| <span class="source-line-no">063</span><span id="line-63">import org.apache.hbase.thirdparty.com.google.protobuf.RpcController;</span> |
| <span class="source-line-no">064</span><span id="line-64">import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException;</span> |
| <span class="source-line-no">065</span><span id="line-65">import org.apache.hbase.thirdparty.io.netty.util.Timer;</span> |
| <span class="source-line-no">066</span><span id="line-66"></span> |
| <span class="source-line-no">067</span><span id="line-67">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">068</span><span id="line-68">import org.apache.hadoop.hbase.shaded.protobuf.ResponseConverter;</span> |
| <span class="source-line-no">069</span><span id="line-69">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos;</span> |
| <span class="source-line-no">070</span><span id="line-70">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService;</span> |
| <span class="source-line-no">071</span><span id="line-71">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanResponse;</span> |
| <span class="source-line-no">072</span><span id="line-72"></span> |
| <span class="source-line-no">073</span><span id="line-73">/**</span> |
| <span class="source-line-no">074</span><span id="line-74"> * Utility used by client connections.</span> |
| <span class="source-line-no">075</span><span id="line-75"> */</span> |
| <span class="source-line-no">076</span><span id="line-76">@InterfaceAudience.Private</span> |
| <span class="source-line-no">077</span><span id="line-77">public final class ConnectionUtils {</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> private static final Logger LOG = LoggerFactory.getLogger(ConnectionUtils.class);</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> /**</span> |
| <span class="source-line-no">082</span><span id="line-82"> * Key for configuration in Configuration whose value is the class we implement making a new</span> |
| <span class="source-line-no">083</span><span id="line-83"> * Connection instance.</span> |
| <span class="source-line-no">084</span><span id="line-84"> */</span> |
| <span class="source-line-no">085</span><span id="line-85"> public static final String HBASE_CLIENT_CONNECTION_IMPL = "hbase.client.connection.impl";</span> |
| <span class="source-line-no">086</span><span id="line-86"></span> |
| <span class="source-line-no">087</span><span id="line-87"> private ConnectionUtils() {</span> |
| <span class="source-line-no">088</span><span id="line-88"> }</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> /**</span> |
| <span class="source-line-no">091</span><span id="line-91"> * Calculate pause time. Built on {@link HConstants#RETRY_BACKOFF}.</span> |
| <span class="source-line-no">092</span><span id="line-92"> * @param pause time to pause</span> |
| <span class="source-line-no">093</span><span id="line-93"> * @param tries amount of tries</span> |
| <span class="source-line-no">094</span><span id="line-94"> * @return How long to wait after <code>tries</code> retries</span> |
| <span class="source-line-no">095</span><span id="line-95"> */</span> |
| <span class="source-line-no">096</span><span id="line-96"> public static long getPauseTime(final long pause, final int tries) {</span> |
| <span class="source-line-no">097</span><span id="line-97"> int ntries = tries;</span> |
| <span class="source-line-no">098</span><span id="line-98"> if (ntries >= HConstants.RETRY_BACKOFF.length) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> ntries = HConstants.RETRY_BACKOFF.length - 1;</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"> if (ntries < 0) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> ntries = 0;</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"> long normalPause = pause * HConstants.RETRY_BACKOFF[ntries];</span> |
| <span class="source-line-no">106</span><span id="line-106"> // 1% possible jitter</span> |
| <span class="source-line-no">107</span><span id="line-107"> long jitter = (long) (normalPause * ThreadLocalRandom.current().nextFloat() * 0.01f);</span> |
| <span class="source-line-no">108</span><span id="line-108"> return normalPause + jitter;</span> |
| <span class="source-line-no">109</span><span id="line-109"> }</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> /**</span> |
| <span class="source-line-no">112</span><span id="line-112"> * Changes the configuration to set the number of retries needed when using Connection internally,</span> |
| <span class="source-line-no">113</span><span id="line-113"> * e.g. for updating catalog tables, etc. Call this method before we create any Connections.</span> |
| <span class="source-line-no">114</span><span id="line-114"> * @param c The Configuration instance to set the retries into.</span> |
| <span class="source-line-no">115</span><span id="line-115"> * @param log Used to log what we set in here.</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 void setServerSideHConnectionRetriesConfig(final Configuration c, final String sn,</span> |
| <span class="source-line-no">118</span><span id="line-118"> final Logger log) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> // TODO: Fix this. Not all connections from server side should have 10 times the retries.</span> |
| <span class="source-line-no">120</span><span id="line-120"> int hcRetries = c.getInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER,</span> |
| <span class="source-line-no">121</span><span id="line-121"> HConstants.DEFAULT_HBASE_CLIENT_RETRIES_NUMBER);</span> |
| <span class="source-line-no">122</span><span id="line-122"> // Go big. Multiply by 10. If we can't get to meta after this many retries</span> |
| <span class="source-line-no">123</span><span id="line-123"> // then something seriously wrong.</span> |
| <span class="source-line-no">124</span><span id="line-124"> int serversideMultiplier = c.getInt(HConstants.HBASE_CLIENT_SERVERSIDE_RETRIES_MULTIPLIER,</span> |
| <span class="source-line-no">125</span><span id="line-125"> HConstants.DEFAULT_HBASE_CLIENT_SERVERSIDE_RETRIES_MULTIPLIER);</span> |
| <span class="source-line-no">126</span><span id="line-126"> int retries = hcRetries * serversideMultiplier;</span> |
| <span class="source-line-no">127</span><span id="line-127"> c.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, retries);</span> |
| <span class="source-line-no">128</span><span id="line-128"> log.info(sn + " server-side Connection retries=" + retries);</span> |
| <span class="source-line-no">129</span><span id="line-129"> }</span> |
| <span class="source-line-no">130</span><span id="line-130"></span> |
| <span class="source-line-no">131</span><span id="line-131"> /**</span> |
| <span class="source-line-no">132</span><span id="line-132"> * Get a unique key for the rpc stub to the given server.</span> |
| <span class="source-line-no">133</span><span id="line-133"> */</span> |
| <span class="source-line-no">134</span><span id="line-134"> static String getStubKey(String serviceName, ServerName serverName) {</span> |
| <span class="source-line-no">135</span><span id="line-135"> return String.format("%s@%s", serviceName, serverName);</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</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"> * Return retires + 1. The returned value will be in range [1, Integer.MAX_VALUE].</span> |
| <span class="source-line-no">140</span><span id="line-140"> */</span> |
| <span class="source-line-no">141</span><span id="line-141"> static int retries2Attempts(int retries) {</span> |
| <span class="source-line-no">142</span><span id="line-142"> return Math.max(1, retries == Integer.MAX_VALUE ? Integer.MAX_VALUE : retries + 1);</span> |
| <span class="source-line-no">143</span><span id="line-143"> }</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> static void checkHasFamilies(Mutation mutation) {</span> |
| <span class="source-line-no">146</span><span id="line-146"> Preconditions.checkArgument(mutation.numFamilies() > 0,</span> |
| <span class="source-line-no">147</span><span id="line-147"> "Invalid arguments to %s, zero columns specified", mutation.toString());</span> |
| <span class="source-line-no">148</span><span id="line-148"> }</span> |
| <span class="source-line-no">149</span><span id="line-149"></span> |
| <span class="source-line-no">150</span><span id="line-150"> /** Dummy nonce generator for disabled nonces. */</span> |
| <span class="source-line-no">151</span><span id="line-151"> static final NonceGenerator NO_NONCE_GENERATOR = new NonceGenerator() {</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"> public long newNonce() {</span> |
| <span class="source-line-no">155</span><span id="line-155"> return HConstants.NO_NONCE;</span> |
| <span class="source-line-no">156</span><span id="line-156"> }</span> |
| <span class="source-line-no">157</span><span id="line-157"></span> |
| <span class="source-line-no">158</span><span id="line-158"> @Override</span> |
| <span class="source-line-no">159</span><span id="line-159"> public long getNonceGroup() {</span> |
| <span class="source-line-no">160</span><span id="line-160"> return HConstants.NO_NONCE;</span> |
| <span class="source-line-no">161</span><span id="line-161"> }</span> |
| <span class="source-line-no">162</span><span id="line-162"> };</span> |
| <span class="source-line-no">163</span><span id="line-163"></span> |
| <span class="source-line-no">164</span><span id="line-164"> // A byte array in which all elements are the max byte, and it is used to</span> |
| <span class="source-line-no">165</span><span id="line-165"> // construct closest front row</span> |
| <span class="source-line-no">166</span><span id="line-166"> static final byte[] MAX_BYTE_ARRAY = Bytes.createMaxByteArray(9);</span> |
| <span class="source-line-no">167</span><span id="line-167"></span> |
| <span class="source-line-no">168</span><span id="line-168"> /**</span> |
| <span class="source-line-no">169</span><span id="line-169"> * Create the closest row after the specified row</span> |
| <span class="source-line-no">170</span><span id="line-170"> */</span> |
| <span class="source-line-no">171</span><span id="line-171"> static byte[] createClosestRowAfter(byte[] row) {</span> |
| <span class="source-line-no">172</span><span id="line-172"> return Arrays.copyOf(row, row.length + 1);</span> |
| <span class="source-line-no">173</span><span id="line-173"> }</span> |
| <span class="source-line-no">174</span><span id="line-174"></span> |
| <span class="source-line-no">175</span><span id="line-175"> /**</span> |
| <span class="source-line-no">176</span><span id="line-176"> * Create a row before the specified row and very close to the specified row.</span> |
| <span class="source-line-no">177</span><span id="line-177"> */</span> |
| <span class="source-line-no">178</span><span id="line-178"> static byte[] createCloseRowBefore(byte[] row) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> if (row.length == 0) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> return MAX_BYTE_ARRAY;</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> if (row[row.length - 1] == 0) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> return Arrays.copyOf(row, row.length - 1);</span> |
| <span class="source-line-no">184</span><span id="line-184"> } else {</span> |
| <span class="source-line-no">185</span><span id="line-185"> byte[] nextRow = new byte[row.length + MAX_BYTE_ARRAY.length];</span> |
| <span class="source-line-no">186</span><span id="line-186"> System.arraycopy(row, 0, nextRow, 0, row.length - 1);</span> |
| <span class="source-line-no">187</span><span id="line-187"> nextRow[row.length - 1] = (byte) ((row[row.length - 1] & 0xFF) - 1);</span> |
| <span class="source-line-no">188</span><span id="line-188"> System.arraycopy(MAX_BYTE_ARRAY, 0, nextRow, row.length, MAX_BYTE_ARRAY.length);</span> |
| <span class="source-line-no">189</span><span id="line-189"> return nextRow;</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"> }</span> |
| <span class="source-line-no">192</span><span id="line-192"></span> |
| <span class="source-line-no">193</span><span id="line-193"> static boolean isEmptyStartRow(byte[] row) {</span> |
| <span class="source-line-no">194</span><span id="line-194"> return Bytes.equals(row, EMPTY_START_ROW);</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"></span> |
| <span class="source-line-no">197</span><span id="line-197"> static boolean isEmptyStopRow(byte[] row) {</span> |
| <span class="source-line-no">198</span><span id="line-198"> return Bytes.equals(row, EMPTY_END_ROW);</span> |
| <span class="source-line-no">199</span><span id="line-199"> }</span> |
| <span class="source-line-no">200</span><span id="line-200"></span> |
| <span class="source-line-no">201</span><span id="line-201"> static void resetController(HBaseRpcController controller, long timeoutNs, int priority,</span> |
| <span class="source-line-no">202</span><span id="line-202"> TableName tableName) {</span> |
| <span class="source-line-no">203</span><span id="line-203"> controller.reset();</span> |
| <span class="source-line-no">204</span><span id="line-204"> if (timeoutNs >= 0) {</span> |
| <span class="source-line-no">205</span><span id="line-205"> controller.setCallTimeout(</span> |
| <span class="source-line-no">206</span><span id="line-206"> (int) Math.min(Integer.MAX_VALUE, TimeUnit.NANOSECONDS.toMillis(timeoutNs)));</span> |
| <span class="source-line-no">207</span><span id="line-207"> }</span> |
| <span class="source-line-no">208</span><span id="line-208"> controller.setPriority(priority);</span> |
| <span class="source-line-no">209</span><span id="line-209"> if (tableName != null) {</span> |
| <span class="source-line-no">210</span><span id="line-210"> controller.setTableName(tableName);</span> |
| <span class="source-line-no">211</span><span id="line-211"> }</span> |
| <span class="source-line-no">212</span><span id="line-212"> }</span> |
| <span class="source-line-no">213</span><span id="line-213"></span> |
| <span class="source-line-no">214</span><span id="line-214"> static Throwable translateException(Throwable t) {</span> |
| <span class="source-line-no">215</span><span id="line-215"> if (t instanceof UndeclaredThrowableException && t.getCause() != null) {</span> |
| <span class="source-line-no">216</span><span id="line-216"> t = t.getCause();</span> |
| <span class="source-line-no">217</span><span id="line-217"> }</span> |
| <span class="source-line-no">218</span><span id="line-218"> if (t instanceof RemoteException) {</span> |
| <span class="source-line-no">219</span><span id="line-219"> t = ((RemoteException) t).unwrapRemoteException();</span> |
| <span class="source-line-no">220</span><span id="line-220"> }</span> |
| <span class="source-line-no">221</span><span id="line-221"> if (t instanceof ServiceException && t.getCause() != null) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> t = translateException(t.getCause());</span> |
| <span class="source-line-no">223</span><span id="line-223"> }</span> |
| <span class="source-line-no">224</span><span id="line-224"> return t;</span> |
| <span class="source-line-no">225</span><span id="line-225"> }</span> |
| <span class="source-line-no">226</span><span id="line-226"></span> |
| <span class="source-line-no">227</span><span id="line-227"> static long calcEstimatedSize(Result rs) {</span> |
| <span class="source-line-no">228</span><span id="line-228"> long estimatedHeapSizeOfResult = 0;</span> |
| <span class="source-line-no">229</span><span id="line-229"> // We don't make Iterator here</span> |
| <span class="source-line-no">230</span><span id="line-230"> for (Cell cell : rs.rawCells()) {</span> |
| <span class="source-line-no">231</span><span id="line-231"> estimatedHeapSizeOfResult += cell.heapSize();</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"> return estimatedHeapSizeOfResult;</span> |
| <span class="source-line-no">234</span><span id="line-234"> }</span> |
| <span class="source-line-no">235</span><span id="line-235"></span> |
| <span class="source-line-no">236</span><span id="line-236"> static Result filterCells(Result result, ExtendedCell keepCellsAfter) {</span> |
| <span class="source-line-no">237</span><span id="line-237"> if (keepCellsAfter == null) {</span> |
| <span class="source-line-no">238</span><span id="line-238"> // do not need to filter</span> |
| <span class="source-line-no">239</span><span id="line-239"> return result;</span> |
| <span class="source-line-no">240</span><span id="line-240"> }</span> |
| <span class="source-line-no">241</span><span id="line-241"> // not the same row</span> |
| <span class="source-line-no">242</span><span id="line-242"> if (!PrivateCellUtil.matchingRows(keepCellsAfter, result.getRow(), 0, result.getRow().length)) {</span> |
| <span class="source-line-no">243</span><span id="line-243"> return result;</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"> ExtendedCell[] rawCells = result.rawExtendedCells();</span> |
| <span class="source-line-no">246</span><span id="line-246"> int index = Arrays.binarySearch(rawCells, keepCellsAfter,</span> |
| <span class="source-line-no">247</span><span id="line-247"> CellComparator.getInstance()::compareWithoutRow);</span> |
| <span class="source-line-no">248</span><span id="line-248"> if (index < 0) {</span> |
| <span class="source-line-no">249</span><span id="line-249"> index = -index - 1;</span> |
| <span class="source-line-no">250</span><span id="line-250"> } else {</span> |
| <span class="source-line-no">251</span><span id="line-251"> index++;</span> |
| <span class="source-line-no">252</span><span id="line-252"> }</span> |
| <span class="source-line-no">253</span><span id="line-253"> if (index == 0) {</span> |
| <span class="source-line-no">254</span><span id="line-254"> return result;</span> |
| <span class="source-line-no">255</span><span id="line-255"> }</span> |
| <span class="source-line-no">256</span><span id="line-256"> if (index == rawCells.length) {</span> |
| <span class="source-line-no">257</span><span id="line-257"> return null;</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"> return Result.create(Arrays.copyOfRange(rawCells, index, rawCells.length), null,</span> |
| <span class="source-line-no">260</span><span id="line-260"> result.isStale(), result.mayHaveMoreCellsInRow());</span> |
| <span class="source-line-no">261</span><span id="line-261"> }</span> |
| <span class="source-line-no">262</span><span id="line-262"></span> |
| <span class="source-line-no">263</span><span id="line-263"> // Add a delta to avoid timeout immediately after a retry sleeping.</span> |
| <span class="source-line-no">264</span><span id="line-264"> public static final long SLEEP_DELTA_NS = TimeUnit.MILLISECONDS.toNanos(1);</span> |
| <span class="source-line-no">265</span><span id="line-265"></span> |
| <span class="source-line-no">266</span><span id="line-266"> static Get toCheckExistenceOnly(Get get) {</span> |
| <span class="source-line-no">267</span><span id="line-267"> if (get.isCheckExistenceOnly()) {</span> |
| <span class="source-line-no">268</span><span id="line-268"> return get;</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> return ReflectionUtils.newInstance(get.getClass(), get).setCheckExistenceOnly(true);</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"></span> |
| <span class="source-line-no">273</span><span id="line-273"> static List<Get> toCheckExistenceOnly(List<Get> gets) {</span> |
| <span class="source-line-no">274</span><span id="line-274"> return gets.stream().map(ConnectionUtils::toCheckExistenceOnly).collect(toList());</span> |
| <span class="source-line-no">275</span><span id="line-275"> }</span> |
| <span class="source-line-no">276</span><span id="line-276"></span> |
| <span class="source-line-no">277</span><span id="line-277"> static RegionLocateType getLocateType(Scan scan) {</span> |
| <span class="source-line-no">278</span><span id="line-278"> if (scan.isReversed()) {</span> |
| <span class="source-line-no">279</span><span id="line-279"> if (isEmptyStartRow(scan.getStartRow())) {</span> |
| <span class="source-line-no">280</span><span id="line-280"> return RegionLocateType.BEFORE;</span> |
| <span class="source-line-no">281</span><span id="line-281"> } else {</span> |
| <span class="source-line-no">282</span><span id="line-282"> return scan.includeStartRow() ? RegionLocateType.CURRENT : RegionLocateType.BEFORE;</span> |
| <span class="source-line-no">283</span><span id="line-283"> }</span> |
| <span class="source-line-no">284</span><span id="line-284"> } else {</span> |
| <span class="source-line-no">285</span><span id="line-285"> return scan.includeStartRow() ? RegionLocateType.CURRENT : RegionLocateType.AFTER;</span> |
| <span class="source-line-no">286</span><span id="line-286"> }</span> |
| <span class="source-line-no">287</span><span id="line-287"> }</span> |
| <span class="source-line-no">288</span><span id="line-288"></span> |
| <span class="source-line-no">289</span><span id="line-289"> static boolean noMoreResultsForScan(Scan scan, RegionInfo info) {</span> |
| <span class="source-line-no">290</span><span id="line-290"> if (isEmptyStopRow(info.getEndKey())) {</span> |
| <span class="source-line-no">291</span><span id="line-291"> return true;</span> |
| <span class="source-line-no">292</span><span id="line-292"> }</span> |
| <span class="source-line-no">293</span><span id="line-293"> if (isEmptyStopRow(scan.getStopRow())) {</span> |
| <span class="source-line-no">294</span><span id="line-294"> return false;</span> |
| <span class="source-line-no">295</span><span id="line-295"> }</span> |
| <span class="source-line-no">296</span><span id="line-296"> int c = Bytes.compareTo(info.getEndKey(), scan.getStopRow());</span> |
| <span class="source-line-no">297</span><span id="line-297"> // 1. if our stop row is less than the endKey of the region</span> |
| <span class="source-line-no">298</span><span id="line-298"> // 2. if our stop row is equal to the endKey of the region and we do not include the stop row</span> |
| <span class="source-line-no">299</span><span id="line-299"> // for scan.</span> |
| <span class="source-line-no">300</span><span id="line-300"> return c > 0 || (c == 0 && !scan.includeStopRow());</span> |
| <span class="source-line-no">301</span><span id="line-301"> }</span> |
| <span class="source-line-no">302</span><span id="line-302"></span> |
| <span class="source-line-no">303</span><span id="line-303"> static boolean noMoreResultsForReverseScan(Scan scan, RegionInfo info) {</span> |
| <span class="source-line-no">304</span><span id="line-304"> if (isEmptyStartRow(info.getStartKey())) {</span> |
| <span class="source-line-no">305</span><span id="line-305"> return true;</span> |
| <span class="source-line-no">306</span><span id="line-306"> }</span> |
| <span class="source-line-no">307</span><span id="line-307"> if (isEmptyStopRow(scan.getStopRow())) {</span> |
| <span class="source-line-no">308</span><span id="line-308"> return false;</span> |
| <span class="source-line-no">309</span><span id="line-309"> }</span> |
| <span class="source-line-no">310</span><span id="line-310"> // no need to test the inclusive of the stop row as the start key of a region is included in</span> |
| <span class="source-line-no">311</span><span id="line-311"> // the region.</span> |
| <span class="source-line-no">312</span><span id="line-312"> return Bytes.compareTo(info.getStartKey(), scan.getStopRow()) <= 0;</span> |
| <span class="source-line-no">313</span><span id="line-313"> }</span> |
| <span class="source-line-no">314</span><span id="line-314"></span> |
| <span class="source-line-no">315</span><span id="line-315"> public static ScanResultCache createScanResultCache(Scan scan) {</span> |
| <span class="source-line-no">316</span><span id="line-316"> if (scan.getAllowPartialResults()) {</span> |
| <span class="source-line-no">317</span><span id="line-317"> return new AllowPartialScanResultCache();</span> |
| <span class="source-line-no">318</span><span id="line-318"> } else if (scan.getBatch() > 0) {</span> |
| <span class="source-line-no">319</span><span id="line-319"> return new BatchScanResultCache(scan.getBatch());</span> |
| <span class="source-line-no">320</span><span id="line-320"> } else {</span> |
| <span class="source-line-no">321</span><span id="line-321"> return new CompleteScanResultCache();</span> |
| <span class="source-line-no">322</span><span id="line-322"> }</span> |
| <span class="source-line-no">323</span><span id="line-323"> }</span> |
| <span class="source-line-no">324</span><span id="line-324"></span> |
| <span class="source-line-no">325</span><span id="line-325"> private static final String MY_ADDRESS = getMyAddress();</span> |
| <span class="source-line-no">326</span><span id="line-326"></span> |
| <span class="source-line-no">327</span><span id="line-327"> private static String getMyAddress() {</span> |
| <span class="source-line-no">328</span><span id="line-328"> try {</span> |
| <span class="source-line-no">329</span><span id="line-329"> return DNS.getDefaultHost("default", "default");</span> |
| <span class="source-line-no">330</span><span id="line-330"> } catch (UnknownHostException uhe) {</span> |
| <span class="source-line-no">331</span><span id="line-331"> LOG.error("cannot determine my address", uhe);</span> |
| <span class="source-line-no">332</span><span id="line-332"> return null;</span> |
| <span class="source-line-no">333</span><span id="line-333"> }</span> |
| <span class="source-line-no">334</span><span id="line-334"> }</span> |
| <span class="source-line-no">335</span><span id="line-335"></span> |
| <span class="source-line-no">336</span><span id="line-336"> static boolean isRemote(String host) {</span> |
| <span class="source-line-no">337</span><span id="line-337"> return !host.equalsIgnoreCase(MY_ADDRESS);</span> |
| <span class="source-line-no">338</span><span id="line-338"> }</span> |
| <span class="source-line-no">339</span><span id="line-339"></span> |
| <span class="source-line-no">340</span><span id="line-340"> static void incRPCCallsMetrics(ScanMetrics scanMetrics, boolean isRegionServerRemote) {</span> |
| <span class="source-line-no">341</span><span id="line-341"> if (scanMetrics == null) {</span> |
| <span class="source-line-no">342</span><span id="line-342"> return;</span> |
| <span class="source-line-no">343</span><span id="line-343"> }</span> |
| <span class="source-line-no">344</span><span id="line-344"> scanMetrics.countOfRPCcalls.incrementAndGet();</span> |
| <span class="source-line-no">345</span><span id="line-345"> if (isRegionServerRemote) {</span> |
| <span class="source-line-no">346</span><span id="line-346"> scanMetrics.countOfRemoteRPCcalls.incrementAndGet();</span> |
| <span class="source-line-no">347</span><span id="line-347"> }</span> |
| <span class="source-line-no">348</span><span id="line-348"> }</span> |
| <span class="source-line-no">349</span><span id="line-349"></span> |
| <span class="source-line-no">350</span><span id="line-350"> static void incRPCRetriesMetrics(ScanMetrics scanMetrics, boolean isRegionServerRemote) {</span> |
| <span class="source-line-no">351</span><span id="line-351"> if (scanMetrics == null) {</span> |
| <span class="source-line-no">352</span><span id="line-352"> return;</span> |
| <span class="source-line-no">353</span><span id="line-353"> }</span> |
| <span class="source-line-no">354</span><span id="line-354"> scanMetrics.countOfRPCRetries.incrementAndGet();</span> |
| <span class="source-line-no">355</span><span id="line-355"> if (isRegionServerRemote) {</span> |
| <span class="source-line-no">356</span><span id="line-356"> scanMetrics.countOfRemoteRPCRetries.incrementAndGet();</span> |
| <span class="source-line-no">357</span><span id="line-357"> }</span> |
| <span class="source-line-no">358</span><span id="line-358"> }</span> |
| <span class="source-line-no">359</span><span id="line-359"></span> |
| <span class="source-line-no">360</span><span id="line-360"> static void updateResultsMetrics(ScanMetrics scanMetrics, Result[] rrs,</span> |
| <span class="source-line-no">361</span><span id="line-361"> boolean isRegionServerRemote) {</span> |
| <span class="source-line-no">362</span><span id="line-362"> if (scanMetrics == null || rrs == null || rrs.length == 0) {</span> |
| <span class="source-line-no">363</span><span id="line-363"> return;</span> |
| <span class="source-line-no">364</span><span id="line-364"> }</span> |
| <span class="source-line-no">365</span><span id="line-365"> long resultSize = 0;</span> |
| <span class="source-line-no">366</span><span id="line-366"> for (Result rr : rrs) {</span> |
| <span class="source-line-no">367</span><span id="line-367"> for (Cell cell : rr.rawCells()) {</span> |
| <span class="source-line-no">368</span><span id="line-368"> resultSize += PrivateCellUtil.estimatedSerializedSizeOf(cell);</span> |
| <span class="source-line-no">369</span><span id="line-369"> }</span> |
| <span class="source-line-no">370</span><span id="line-370"> }</span> |
| <span class="source-line-no">371</span><span id="line-371"> scanMetrics.countOfBytesInResults.addAndGet(resultSize);</span> |
| <span class="source-line-no">372</span><span id="line-372"> if (isRegionServerRemote) {</span> |
| <span class="source-line-no">373</span><span id="line-373"> scanMetrics.countOfBytesInRemoteResults.addAndGet(resultSize);</span> |
| <span class="source-line-no">374</span><span id="line-374"> }</span> |
| <span class="source-line-no">375</span><span id="line-375"> }</span> |
| <span class="source-line-no">376</span><span id="line-376"></span> |
| <span class="source-line-no">377</span><span id="line-377"> /**</span> |
| <span class="source-line-no">378</span><span id="line-378"> * Use the scan metrics returned by the server to add to the identically named counters in the</span> |
| <span class="source-line-no">379</span><span id="line-379"> * client side metrics. If a counter does not exist with the same name as the server side metric,</span> |
| <span class="source-line-no">380</span><span id="line-380"> * the attempt to increase the counter will fail.</span> |
| <span class="source-line-no">381</span><span id="line-381"> */</span> |
| <span class="source-line-no">382</span><span id="line-382"> static void updateServerSideMetrics(ScanMetrics scanMetrics, ScanResponse response) {</span> |
| <span class="source-line-no">383</span><span id="line-383"> if (scanMetrics == null || response == null || !response.hasScanMetrics()) {</span> |
| <span class="source-line-no">384</span><span id="line-384"> return;</span> |
| <span class="source-line-no">385</span><span id="line-385"> }</span> |
| <span class="source-line-no">386</span><span id="line-386"> ResponseConverter.getScanMetrics(response).forEach(scanMetrics::addToCounter);</span> |
| <span class="source-line-no">387</span><span id="line-387"> }</span> |
| <span class="source-line-no">388</span><span id="line-388"></span> |
| <span class="source-line-no">389</span><span id="line-389"> static void incRegionCountMetrics(ScanMetrics scanMetrics) {</span> |
| <span class="source-line-no">390</span><span id="line-390"> if (scanMetrics == null) {</span> |
| <span class="source-line-no">391</span><span id="line-391"> return;</span> |
| <span class="source-line-no">392</span><span id="line-392"> }</span> |
| <span class="source-line-no">393</span><span id="line-393"> scanMetrics.countOfRegions.incrementAndGet();</span> |
| <span class="source-line-no">394</span><span id="line-394"> }</span> |
| <span class="source-line-no">395</span><span id="line-395"></span> |
| <span class="source-line-no">396</span><span id="line-396"> /**</span> |
| <span class="source-line-no">397</span><span id="line-397"> * Connect the two futures, if the src future is done, then mark the dst future as done. And if</span> |
| <span class="source-line-no">398</span><span id="line-398"> * the dst future is done, then cancel the src future. This is used for timeline consistent read.</span> |
| <span class="source-line-no">399</span><span id="line-399"> * <p/></span> |
| <span class="source-line-no">400</span><span id="line-400"> * Pass empty metrics if you want to link the primary future and the dst future so we will not</span> |
| <span class="source-line-no">401</span><span id="line-401"> * increase the hedge read related metrics.</span> |
| <span class="source-line-no">402</span><span id="line-402"> */</span> |
| <span class="source-line-no">403</span><span id="line-403"> private static <T> void connect(CompletableFuture<T> srcFuture, CompletableFuture<T> dstFuture,</span> |
| <span class="source-line-no">404</span><span id="line-404"> Optional<MetricsConnection> metrics) {</span> |
| <span class="source-line-no">405</span><span id="line-405"> addListener(srcFuture, (r, e) -> {</span> |
| <span class="source-line-no">406</span><span id="line-406"> if (e != null) {</span> |
| <span class="source-line-no">407</span><span id="line-407"> dstFuture.completeExceptionally(e);</span> |
| <span class="source-line-no">408</span><span id="line-408"> } else {</span> |
| <span class="source-line-no">409</span><span id="line-409"> if (dstFuture.complete(r)) {</span> |
| <span class="source-line-no">410</span><span id="line-410"> metrics.ifPresent(MetricsConnection::incrHedgedReadWin);</span> |
| <span class="source-line-no">411</span><span id="line-411"> }</span> |
| <span class="source-line-no">412</span><span id="line-412"> }</span> |
| <span class="source-line-no">413</span><span id="line-413"> });</span> |
| <span class="source-line-no">414</span><span id="line-414"> // The cancellation may be a dummy one as the dstFuture may be completed by this srcFuture.</span> |
| <span class="source-line-no">415</span><span id="line-415"> // Notice that this is a bit tricky, as the execution chain maybe 'complete src -> complete dst</span> |
| <span class="source-line-no">416</span><span id="line-416"> // -> cancel src', for now it seems to be fine, as the will use CAS to set the result first in</span> |
| <span class="source-line-no">417</span><span id="line-417"> // CompletableFuture. If later this causes problems, we could use whenCompleteAsync to break the</span> |
| <span class="source-line-no">418</span><span id="line-418"> // tie.</span> |
| <span class="source-line-no">419</span><span id="line-419"> addListener(dstFuture, (r, e) -> srcFuture.cancel(false));</span> |
| <span class="source-line-no">420</span><span id="line-420"> }</span> |
| <span class="source-line-no">421</span><span id="line-421"></span> |
| <span class="source-line-no">422</span><span id="line-422"> private static <T> void sendRequestsToSecondaryReplicas(</span> |
| <span class="source-line-no">423</span><span id="line-423"> Function<Integer, CompletableFuture<T>> requestReplica, RegionLocations locs,</span> |
| <span class="source-line-no">424</span><span id="line-424"> CompletableFuture<T> future, Optional<MetricsConnection> metrics) {</span> |
| <span class="source-line-no">425</span><span id="line-425"> if (future.isDone()) {</span> |
| <span class="source-line-no">426</span><span id="line-426"> // do not send requests to secondary replicas if the future is done, i.e, the primary request</span> |
| <span class="source-line-no">427</span><span id="line-427"> // has already been finished.</span> |
| <span class="source-line-no">428</span><span id="line-428"> return;</span> |
| <span class="source-line-no">429</span><span id="line-429"> }</span> |
| <span class="source-line-no">430</span><span id="line-430"> for (int replicaId = 1, n = locs.size(); replicaId < n; replicaId++) {</span> |
| <span class="source-line-no">431</span><span id="line-431"> CompletableFuture<T> secondaryFuture = requestReplica.apply(replicaId);</span> |
| <span class="source-line-no">432</span><span id="line-432"> metrics.ifPresent(MetricsConnection::incrHedgedReadOps);</span> |
| <span class="source-line-no">433</span><span id="line-433"> connect(secondaryFuture, future, metrics);</span> |
| <span class="source-line-no">434</span><span id="line-434"> }</span> |
| <span class="source-line-no">435</span><span id="line-435"> }</span> |
| <span class="source-line-no">436</span><span id="line-436"></span> |
| <span class="source-line-no">437</span><span id="line-437"> static <T> CompletableFuture<T> timelineConsistentRead(AsyncRegionLocator locator,</span> |
| <span class="source-line-no">438</span><span id="line-438"> TableName tableName, Query query, byte[] row, RegionLocateType locateType,</span> |
| <span class="source-line-no">439</span><span id="line-439"> Function<Integer, CompletableFuture<T>> requestReplica, long rpcTimeoutNs,</span> |
| <span class="source-line-no">440</span><span id="line-440"> long primaryCallTimeoutNs, Timer retryTimer, Optional<MetricsConnection> metrics) {</span> |
| <span class="source-line-no">441</span><span id="line-441"> if (query.getConsistency() != Consistency.TIMELINE) {</span> |
| <span class="source-line-no">442</span><span id="line-442"> return requestReplica.apply(RegionReplicaUtil.DEFAULT_REPLICA_ID);</span> |
| <span class="source-line-no">443</span><span id="line-443"> }</span> |
| <span class="source-line-no">444</span><span id="line-444"> // user specifies a replica id explicitly, just send request to the specific replica</span> |
| <span class="source-line-no">445</span><span id="line-445"> if (query.getReplicaId() >= 0) {</span> |
| <span class="source-line-no">446</span><span id="line-446"> return requestReplica.apply(query.getReplicaId());</span> |
| <span class="source-line-no">447</span><span id="line-447"> }</span> |
| <span class="source-line-no">448</span><span id="line-448"> // Timeline consistent read, where we may send requests to other region replicas</span> |
| <span class="source-line-no">449</span><span id="line-449"> CompletableFuture<T> primaryFuture = requestReplica.apply(RegionReplicaUtil.DEFAULT_REPLICA_ID);</span> |
| <span class="source-line-no">450</span><span id="line-450"> CompletableFuture<T> future = new CompletableFuture<>();</span> |
| <span class="source-line-no">451</span><span id="line-451"> connect(primaryFuture, future, Optional.empty());</span> |
| <span class="source-line-no">452</span><span id="line-452"> long startNs = System.nanoTime();</span> |
| <span class="source-line-no">453</span><span id="line-453"> // after the getRegionLocations, all the locations for the replicas of this region should have</span> |
| <span class="source-line-no">454</span><span id="line-454"> // been cached, so it is not big deal to locate them again when actually sending requests to</span> |
| <span class="source-line-no">455</span><span id="line-455"> // these replicas.</span> |
| <span class="source-line-no">456</span><span id="line-456"> addListener(locator.getRegionLocations(tableName, row, locateType, false, rpcTimeoutNs),</span> |
| <span class="source-line-no">457</span><span id="line-457"> (locs, error) -> {</span> |
| <span class="source-line-no">458</span><span id="line-458"> if (error != null) {</span> |
| <span class="source-line-no">459</span><span id="line-459"> LOG.warn(</span> |
| <span class="source-line-no">460</span><span id="line-460"> "Failed to locate all the replicas for table={}, row='{}', locateType={}"</span> |
| <span class="source-line-no">461</span><span id="line-461"> + " give up timeline consistent read",</span> |
| <span class="source-line-no">462</span><span id="line-462"> tableName, Bytes.toStringBinary(row), locateType, error);</span> |
| <span class="source-line-no">463</span><span id="line-463"> return;</span> |
| <span class="source-line-no">464</span><span id="line-464"> }</span> |
| <span class="source-line-no">465</span><span id="line-465"> if (locs.size() <= 1) {</span> |
| <span class="source-line-no">466</span><span id="line-466"> LOG.warn(</span> |
| <span class="source-line-no">467</span><span id="line-467"> "There are no secondary replicas for region {}, give up timeline consistent read",</span> |
| <span class="source-line-no">468</span><span id="line-468"> locs.getDefaultRegionLocation().getRegion());</span> |
| <span class="source-line-no">469</span><span id="line-469"> return;</span> |
| <span class="source-line-no">470</span><span id="line-470"> }</span> |
| <span class="source-line-no">471</span><span id="line-471"> long delayNs = primaryCallTimeoutNs - (System.nanoTime() - startNs);</span> |
| <span class="source-line-no">472</span><span id="line-472"> if (delayNs <= 0) {</span> |
| <span class="source-line-no">473</span><span id="line-473"> sendRequestsToSecondaryReplicas(requestReplica, locs, future, metrics);</span> |
| <span class="source-line-no">474</span><span id="line-474"> } else {</span> |
| <span class="source-line-no">475</span><span id="line-475"> retryTimer.newTimeout(</span> |
| <span class="source-line-no">476</span><span id="line-476"> timeout -> sendRequestsToSecondaryReplicas(requestReplica, locs, future, metrics),</span> |
| <span class="source-line-no">477</span><span id="line-477"> delayNs, TimeUnit.NANOSECONDS);</span> |
| <span class="source-line-no">478</span><span id="line-478"> }</span> |
| <span class="source-line-no">479</span><span id="line-479"> });</span> |
| <span class="source-line-no">480</span><span id="line-480"> return future;</span> |
| <span class="source-line-no">481</span><span id="line-481"> }</span> |
| <span class="source-line-no">482</span><span id="line-482"></span> |
| <span class="source-line-no">483</span><span id="line-483"> // validate for well-formedness</span> |
| <span class="source-line-no">484</span><span id="line-484"> static void validatePut(Put put, int maxKeyValueSize) {</span> |
| <span class="source-line-no">485</span><span id="line-485"> if (put.isEmpty()) {</span> |
| <span class="source-line-no">486</span><span id="line-486"> throw new IllegalArgumentException("No columns to insert");</span> |
| <span class="source-line-no">487</span><span id="line-487"> }</span> |
| <span class="source-line-no">488</span><span id="line-488"> if (maxKeyValueSize > 0) {</span> |
| <span class="source-line-no">489</span><span id="line-489"> for (List<Cell> list : put.getFamilyCellMap().values()) {</span> |
| <span class="source-line-no">490</span><span id="line-490"> for (Cell cell : list) {</span> |
| <span class="source-line-no">491</span><span id="line-491"> if (cell.getSerializedSize() > maxKeyValueSize) {</span> |
| <span class="source-line-no">492</span><span id="line-492"> throw new IllegalArgumentException("KeyValue size too large");</span> |
| <span class="source-line-no">493</span><span id="line-493"> }</span> |
| <span class="source-line-no">494</span><span id="line-494"> }</span> |
| <span class="source-line-no">495</span><span id="line-495"> }</span> |
| <span class="source-line-no">496</span><span id="line-496"> }</span> |
| <span class="source-line-no">497</span><span id="line-497"> }</span> |
| <span class="source-line-no">498</span><span id="line-498"></span> |
| <span class="source-line-no">499</span><span id="line-499"> static void validatePutsInRowMutations(RowMutations rowMutations, int maxKeyValueSize) {</span> |
| <span class="source-line-no">500</span><span id="line-500"> for (Mutation mutation : rowMutations.getMutations()) {</span> |
| <span class="source-line-no">501</span><span id="line-501"> if (mutation instanceof Put) {</span> |
| <span class="source-line-no">502</span><span id="line-502"> validatePut((Put) mutation, maxKeyValueSize);</span> |
| <span class="source-line-no">503</span><span id="line-503"> }</span> |
| <span class="source-line-no">504</span><span id="line-504"> }</span> |
| <span class="source-line-no">505</span><span id="line-505"> }</span> |
| <span class="source-line-no">506</span><span id="line-506"></span> |
| <span class="source-line-no">507</span><span id="line-507"> /**</span> |
| <span class="source-line-no">508</span><span id="line-508"> * Select the priority for the rpc call.</span> |
| <span class="source-line-no">509</span><span id="line-509"> * <p/></span> |
| <span class="source-line-no">510</span><span id="line-510"> * The rules are:</span> |
| <span class="source-line-no">511</span><span id="line-511"> * <ol></span> |
| <span class="source-line-no">512</span><span id="line-512"> * <li>If user set a priority explicitly, then just use it.</li></span> |
| <span class="source-line-no">513</span><span id="line-513"> * <li>For system table, use {@link HConstants#SYSTEMTABLE_QOS}.</li></span> |
| <span class="source-line-no">514</span><span id="line-514"> * <li>For other tables, use {@link HConstants#NORMAL_QOS}.</li></span> |
| <span class="source-line-no">515</span><span id="line-515"> * </ol></span> |
| <span class="source-line-no">516</span><span id="line-516"> * @param priority the priority set by user, can be {@link HConstants#PRIORITY_UNSET}.</span> |
| <span class="source-line-no">517</span><span id="line-517"> * @param tableName the table we operate on</span> |
| <span class="source-line-no">518</span><span id="line-518"> */</span> |
| <span class="source-line-no">519</span><span id="line-519"> static int calcPriority(int priority, TableName tableName) {</span> |
| <span class="source-line-no">520</span><span id="line-520"> if (priority != HConstants.PRIORITY_UNSET) {</span> |
| <span class="source-line-no">521</span><span id="line-521"> return priority;</span> |
| <span class="source-line-no">522</span><span id="line-522"> } else {</span> |
| <span class="source-line-no">523</span><span id="line-523"> return getPriority(tableName);</span> |
| <span class="source-line-no">524</span><span id="line-524"> }</span> |
| <span class="source-line-no">525</span><span id="line-525"> }</span> |
| <span class="source-line-no">526</span><span id="line-526"></span> |
| <span class="source-line-no">527</span><span id="line-527"> static int getPriority(TableName tableName) {</span> |
| <span class="source-line-no">528</span><span id="line-528"> if (tableName.isSystemTable()) {</span> |
| <span class="source-line-no">529</span><span id="line-529"> return HConstants.SYSTEMTABLE_QOS;</span> |
| <span class="source-line-no">530</span><span id="line-530"> } else {</span> |
| <span class="source-line-no">531</span><span id="line-531"> return HConstants.NORMAL_QOS;</span> |
| <span class="source-line-no">532</span><span id="line-532"> }</span> |
| <span class="source-line-no">533</span><span id="line-533"> }</span> |
| <span class="source-line-no">534</span><span id="line-534"></span> |
| <span class="source-line-no">535</span><span id="line-535"> static <T> CompletableFuture<T> getOrFetch(AtomicReference<T> cacheRef,</span> |
| <span class="source-line-no">536</span><span id="line-536"> AtomicReference<CompletableFuture<T>> futureRef, boolean reload,</span> |
| <span class="source-line-no">537</span><span id="line-537"> Supplier<CompletableFuture<T>> fetch, Predicate<T> validator, String type) {</span> |
| <span class="source-line-no">538</span><span id="line-538"> for (;;) {</span> |
| <span class="source-line-no">539</span><span id="line-539"> if (!reload) {</span> |
| <span class="source-line-no">540</span><span id="line-540"> T value = cacheRef.get();</span> |
| <span class="source-line-no">541</span><span id="line-541"> if (value != null && validator.test(value)) {</span> |
| <span class="source-line-no">542</span><span id="line-542"> return CompletableFuture.completedFuture(value);</span> |
| <span class="source-line-no">543</span><span id="line-543"> }</span> |
| <span class="source-line-no">544</span><span id="line-544"> }</span> |
| <span class="source-line-no">545</span><span id="line-545"> LOG.trace("{} cache is null, try fetching from registry", type);</span> |
| <span class="source-line-no">546</span><span id="line-546"> if (futureRef.compareAndSet(null, new CompletableFuture<>())) {</span> |
| <span class="source-line-no">547</span><span id="line-547"> LOG.debug("Start fetching {} from registry", type);</span> |
| <span class="source-line-no">548</span><span id="line-548"> CompletableFuture<T> future = futureRef.get();</span> |
| <span class="source-line-no">549</span><span id="line-549"> addListener(fetch.get(), (value, error) -> {</span> |
| <span class="source-line-no">550</span><span id="line-550"> if (error != null) {</span> |
| <span class="source-line-no">551</span><span id="line-551"> LOG.debug("Failed to fetch {} from registry", type, error);</span> |
| <span class="source-line-no">552</span><span id="line-552"> futureRef.getAndSet(null).completeExceptionally(error);</span> |
| <span class="source-line-no">553</span><span id="line-553"> return;</span> |
| <span class="source-line-no">554</span><span id="line-554"> }</span> |
| <span class="source-line-no">555</span><span id="line-555"> LOG.debug("The fetched {} is {}", type, value);</span> |
| <span class="source-line-no">556</span><span id="line-556"> // Here we update cache before reset future, so it is possible that someone can get a</span> |
| <span class="source-line-no">557</span><span id="line-557"> // stale value. Consider this:</span> |
| <span class="source-line-no">558</span><span id="line-558"> // 1. update cacheRef</span> |
| <span class="source-line-no">559</span><span id="line-559"> // 2. someone clears the cache and relocates again</span> |
| <span class="source-line-no">560</span><span id="line-560"> // 3. the futureRef is not null so the old future is used.</span> |
| <span class="source-line-no">561</span><span id="line-561"> // 4. we clear futureRef and complete the future in it with the value being</span> |
| <span class="source-line-no">562</span><span id="line-562"> // cleared in step 2.</span> |
| <span class="source-line-no">563</span><span id="line-563"> // But we do not think it is a big deal as it rarely happens, and even if it happens, the</span> |
| <span class="source-line-no">564</span><span id="line-564"> // caller will retry again later, no correctness problems.</span> |
| <span class="source-line-no">565</span><span id="line-565"> cacheRef.set(value);</span> |
| <span class="source-line-no">566</span><span id="line-566"> futureRef.set(null);</span> |
| <span class="source-line-no">567</span><span id="line-567"> future.complete(value);</span> |
| <span class="source-line-no">568</span><span id="line-568"> });</span> |
| <span class="source-line-no">569</span><span id="line-569"> return future;</span> |
| <span class="source-line-no">570</span><span id="line-570"> } else {</span> |
| <span class="source-line-no">571</span><span id="line-571"> CompletableFuture<T> future = futureRef.get();</span> |
| <span class="source-line-no">572</span><span id="line-572"> if (future != null) {</span> |
| <span class="source-line-no">573</span><span id="line-573"> return future;</span> |
| <span class="source-line-no">574</span><span id="line-574"> }</span> |
| <span class="source-line-no">575</span><span id="line-575"> }</span> |
| <span class="source-line-no">576</span><span id="line-576"> }</span> |
| <span class="source-line-no">577</span><span id="line-577"> }</span> |
| <span class="source-line-no">578</span><span id="line-578"></span> |
| <span class="source-line-no">579</span><span id="line-579"> static void updateStats(Optional<ServerStatisticTracker> optStats,</span> |
| <span class="source-line-no">580</span><span id="line-580"> Optional<MetricsConnection> optMetrics, ServerName serverName, MultiResponse resp) {</span> |
| <span class="source-line-no">581</span><span id="line-581"> if (!optStats.isPresent() && !optMetrics.isPresent()) {</span> |
| <span class="source-line-no">582</span><span id="line-582"> // ServerStatisticTracker and MetricsConnection are both not present, just return</span> |
| <span class="source-line-no">583</span><span id="line-583"> return;</span> |
| <span class="source-line-no">584</span><span id="line-584"> }</span> |
| <span class="source-line-no">585</span><span id="line-585"> resp.getResults().forEach((regionName, regionResult) -> {</span> |
| <span class="source-line-no">586</span><span id="line-586"> ClientProtos.RegionLoadStats stat = regionResult.getStat();</span> |
| <span class="source-line-no">587</span><span id="line-587"> if (stat == null) {</span> |
| <span class="source-line-no">588</span><span id="line-588"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">589</span><span id="line-589"> LOG.debug("No ClientProtos.RegionLoadStats found for server={}, region={}", serverName,</span> |
| <span class="source-line-no">590</span><span id="line-590"> Bytes.toStringBinary(regionName));</span> |
| <span class="source-line-no">591</span><span id="line-591"> }</span> |
| <span class="source-line-no">592</span><span id="line-592"> return;</span> |
| <span class="source-line-no">593</span><span id="line-593"> }</span> |
| <span class="source-line-no">594</span><span id="line-594"> RegionLoadStats regionLoadStats = ProtobufUtil.createRegionLoadStats(stat);</span> |
| <span class="source-line-no">595</span><span id="line-595"> optStats.ifPresent(</span> |
| <span class="source-line-no">596</span><span id="line-596"> stats -> ResultStatsUtil.updateStats(stats, serverName, regionName, regionLoadStats));</span> |
| <span class="source-line-no">597</span><span id="line-597"> optMetrics.ifPresent(</span> |
| <span class="source-line-no">598</span><span id="line-598"> metrics -> ResultStatsUtil.updateStats(metrics, serverName, regionName, regionLoadStats));</span> |
| <span class="source-line-no">599</span><span id="line-599"> });</span> |
| <span class="source-line-no">600</span><span id="line-600"> }</span> |
| <span class="source-line-no">601</span><span id="line-601"></span> |
| <span class="source-line-no">602</span><span id="line-602"> @FunctionalInterface</span> |
| <span class="source-line-no">603</span><span id="line-603"> interface Converter<D, I, S> {</span> |
| <span class="source-line-no">604</span><span id="line-604"> D convert(I info, S src) throws IOException;</span> |
| <span class="source-line-no">605</span><span id="line-605"> }</span> |
| <span class="source-line-no">606</span><span id="line-606"></span> |
| <span class="source-line-no">607</span><span id="line-607"> @FunctionalInterface</span> |
| <span class="source-line-no">608</span><span id="line-608"> interface RpcCall<RESP, REQ> {</span> |
| <span class="source-line-no">609</span><span id="line-609"> void call(ClientService.Interface stub, HBaseRpcController controller, REQ req,</span> |
| <span class="source-line-no">610</span><span id="line-610"> RpcCallback<RESP> done);</span> |
| <span class="source-line-no">611</span><span id="line-611"> }</span> |
| <span class="source-line-no">612</span><span id="line-612"></span> |
| <span class="source-line-no">613</span><span id="line-613"> static <REQ, PREQ, PRESP, RESP> CompletableFuture<RESP> call(HBaseRpcController controller,</span> |
| <span class="source-line-no">614</span><span id="line-614"> HRegionLocation loc, ClientService.Interface stub, REQ req,</span> |
| <span class="source-line-no">615</span><span id="line-615"> Converter<PREQ, byte[], REQ> reqConvert, RpcCall<PRESP, PREQ> rpcCall,</span> |
| <span class="source-line-no">616</span><span id="line-616"> Converter<RESP, HBaseRpcController, PRESP> respConverter) {</span> |
| <span class="source-line-no">617</span><span id="line-617"> CompletableFuture<RESP> future = new CompletableFuture<>();</span> |
| <span class="source-line-no">618</span><span id="line-618"> try {</span> |
| <span class="source-line-no">619</span><span id="line-619"> rpcCall.call(stub, controller, reqConvert.convert(loc.getRegion().getRegionName(), req),</span> |
| <span class="source-line-no">620</span><span id="line-620"> new RpcCallback<PRESP>() {</span> |
| <span class="source-line-no">621</span><span id="line-621"></span> |
| <span class="source-line-no">622</span><span id="line-622"> @Override</span> |
| <span class="source-line-no">623</span><span id="line-623"> public void run(PRESP resp) {</span> |
| <span class="source-line-no">624</span><span id="line-624"> if (controller.failed()) {</span> |
| <span class="source-line-no">625</span><span id="line-625"> future.completeExceptionally(controller.getFailed());</span> |
| <span class="source-line-no">626</span><span id="line-626"> } else {</span> |
| <span class="source-line-no">627</span><span id="line-627"> try {</span> |
| <span class="source-line-no">628</span><span id="line-628"> future.complete(respConverter.convert(controller, resp));</span> |
| <span class="source-line-no">629</span><span id="line-629"> } catch (IOException e) {</span> |
| <span class="source-line-no">630</span><span id="line-630"> future.completeExceptionally(e);</span> |
| <span class="source-line-no">631</span><span id="line-631"> }</span> |
| <span class="source-line-no">632</span><span id="line-632"> }</span> |
| <span class="source-line-no">633</span><span id="line-633"> }</span> |
| <span class="source-line-no">634</span><span id="line-634"> });</span> |
| <span class="source-line-no">635</span><span id="line-635"> } catch (IOException e) {</span> |
| <span class="source-line-no">636</span><span id="line-636"> future.completeExceptionally(e);</span> |
| <span class="source-line-no">637</span><span id="line-637"> }</span> |
| <span class="source-line-no">638</span><span id="line-638"> return future;</span> |
| <span class="source-line-no">639</span><span id="line-639"> }</span> |
| <span class="source-line-no">640</span><span id="line-640"></span> |
| <span class="source-line-no">641</span><span id="line-641"> static void shutdownPool(ExecutorService pool) {</span> |
| <span class="source-line-no">642</span><span id="line-642"> pool.shutdown();</span> |
| <span class="source-line-no">643</span><span id="line-643"> try {</span> |
| <span class="source-line-no">644</span><span id="line-644"> if (!pool.awaitTermination(10, TimeUnit.SECONDS)) {</span> |
| <span class="source-line-no">645</span><span id="line-645"> pool.shutdownNow();</span> |
| <span class="source-line-no">646</span><span id="line-646"> }</span> |
| <span class="source-line-no">647</span><span id="line-647"> } catch (InterruptedException e) {</span> |
| <span class="source-line-no">648</span><span id="line-648"> pool.shutdownNow();</span> |
| <span class="source-line-no">649</span><span id="line-649"> }</span> |
| <span class="source-line-no">650</span><span id="line-650"> }</span> |
| <span class="source-line-no">651</span><span id="line-651"></span> |
| <span class="source-line-no">652</span><span id="line-652"> static void setCoprocessorError(RpcController controller, Throwable error) {</span> |
| <span class="source-line-no">653</span><span id="line-653"> if (controller == null) {</span> |
| <span class="source-line-no">654</span><span id="line-654"> return;</span> |
| <span class="source-line-no">655</span><span id="line-655"> }</span> |
| <span class="source-line-no">656</span><span id="line-656"> if (controller instanceof ServerRpcController) {</span> |
| <span class="source-line-no">657</span><span id="line-657"> if (error instanceof IOException) {</span> |
| <span class="source-line-no">658</span><span id="line-658"> ((ServerRpcController) controller).setFailedOn((IOException) error);</span> |
| <span class="source-line-no">659</span><span id="line-659"> } else {</span> |
| <span class="source-line-no">660</span><span id="line-660"> ((ServerRpcController) controller).setFailedOn(new IOException(error));</span> |
| <span class="source-line-no">661</span><span id="line-661"> }</span> |
| <span class="source-line-no">662</span><span id="line-662"> } else if (controller instanceof ClientCoprocessorRpcController) {</span> |
| <span class="source-line-no">663</span><span id="line-663"> ((ClientCoprocessorRpcController) controller).setFailed(error);</span> |
| <span class="source-line-no">664</span><span id="line-664"> } else {</span> |
| <span class="source-line-no">665</span><span id="line-665"> controller.setFailed(error.toString());</span> |
| <span class="source-line-no">666</span><span id="line-666"> }</span> |
| <span class="source-line-no">667</span><span id="line-667"> }</span> |
| <span class="source-line-no">668</span><span id="line-668"></span> |
| <span class="source-line-no">669</span><span id="line-669"> public static boolean isUnexpectedPreambleHeaderException(IOException e) {</span> |
| <span class="source-line-no">670</span><span id="line-670"> if (!(e instanceof RemoteException)) {</span> |
| <span class="source-line-no">671</span><span id="line-671"> return false;</span> |
| <span class="source-line-no">672</span><span id="line-672"> }</span> |
| <span class="source-line-no">673</span><span id="line-673"> RemoteException re = (RemoteException) e;</span> |
| <span class="source-line-no">674</span><span id="line-674"> return FatalConnectionException.class.getName().equals(re.getClassName())</span> |
| <span class="source-line-no">675</span><span id="line-675"> && re.getMessage().startsWith("Expected HEADER=");</span> |
| <span class="source-line-no">676</span><span id="line-676"> }</span> |
| <span class="source-line-no">677</span><span id="line-677">}</span> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
