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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.ipc;</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 org.apache.hadoop.hbase.ipc.CallEvent.Type.CANCELLED;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.ipc.CallEvent.Type.TIMEOUT;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.ipc.IPCUtil.execute;</span> |
| <span class="source-line-no">023</span><span id="line-23">import static org.apache.hadoop.hbase.ipc.IPCUtil.setCancelled;</span> |
| <span class="source-line-no">024</span><span id="line-24">import static org.apache.hadoop.hbase.ipc.IPCUtil.toIOE;</span> |
| <span class="source-line-no">025</span><span id="line-25"></span> |
| <span class="source-line-no">026</span><span id="line-26">import java.io.IOException;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.net.InetSocketAddress;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.net.UnknownHostException;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.Set;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.concurrent.Executors;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.ScheduledExecutorService;</span> |
| <span class="source-line-no">032</span><span id="line-32">import java.util.concurrent.ThreadLocalRandom;</span> |
| <span class="source-line-no">033</span><span id="line-33">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">034</span><span id="line-34">import javax.security.sasl.SaslException;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.hbase.client.ConnectionUtils;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.io.crypto.tls.X509Util;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.ipc.BufferCallBeforeInitHandler.BufferCallEvent;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.ipc.HBaseRpcController.CancellationCallback;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.security.NettyHBaseRpcConnectionHeaderHandler;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClientHandler;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.security.SaslChallengeDecoder;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.util.NettyFutureUtils;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.util.Threads;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.security.UserGroupInformation;</span> |
| <span class="source-line-no">045</span><span id="line-45">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">046</span><span id="line-46">import org.slf4j.Logger;</span> |
| <span class="source-line-no">047</span><span id="line-47">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49">import org.apache.hbase.thirdparty.com.google.common.util.concurrent.ThreadFactoryBuilder;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hbase.thirdparty.io.netty.bootstrap.Bootstrap;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufOutputStream;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hbase.thirdparty.io.netty.buffer.Unpooled;</span> |
| <span class="source-line-no">055</span><span id="line-55">import org.apache.hbase.thirdparty.io.netty.channel.Channel;</span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hbase.thirdparty.io.netty.channel.ChannelFuture;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.hbase.thirdparty.io.netty.channel.ChannelFutureListener;</span> |
| <span class="source-line-no">058</span><span id="line-58">import org.apache.hbase.thirdparty.io.netty.channel.ChannelInitializer;</span> |
| <span class="source-line-no">059</span><span id="line-59">import org.apache.hbase.thirdparty.io.netty.channel.ChannelOption;</span> |
| <span class="source-line-no">060</span><span id="line-60">import org.apache.hbase.thirdparty.io.netty.channel.ChannelPipeline;</span> |
| <span class="source-line-no">061</span><span id="line-61">import org.apache.hbase.thirdparty.io.netty.channel.EventLoop;</span> |
| <span class="source-line-no">062</span><span id="line-62">import org.apache.hbase.thirdparty.io.netty.handler.codec.LengthFieldBasedFrameDecoder;</span> |
| <span class="source-line-no">063</span><span id="line-63">import org.apache.hbase.thirdparty.io.netty.handler.ssl.SslContext;</span> |
| <span class="source-line-no">064</span><span id="line-64">import org.apache.hbase.thirdparty.io.netty.handler.ssl.SslHandler;</span> |
| <span class="source-line-no">065</span><span id="line-65">import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateHandler;</span> |
| <span class="source-line-no">066</span><span id="line-66">import org.apache.hbase.thirdparty.io.netty.handler.timeout.ReadTimeoutHandler;</span> |
| <span class="source-line-no">067</span><span id="line-67">import org.apache.hbase.thirdparty.io.netty.util.ReferenceCountUtil;</span> |
| <span class="source-line-no">068</span><span id="line-68">import org.apache.hbase.thirdparty.io.netty.util.concurrent.Future;</span> |
| <span class="source-line-no">069</span><span id="line-69">import org.apache.hbase.thirdparty.io.netty.util.concurrent.FutureListener;</span> |
| <span class="source-line-no">070</span><span id="line-70">import org.apache.hbase.thirdparty.io.netty.util.concurrent.Promise;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72">import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.ConnectionHeader;</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74">/**</span> |
| <span class="source-line-no">075</span><span id="line-75"> * RPC connection implementation based on netty.</span> |
| <span class="source-line-no">076</span><span id="line-76"> * <p/></span> |
| <span class="source-line-no">077</span><span id="line-77"> * Most operations are executed in handlers. Netty handler is always executed in the same</span> |
| <span class="source-line-no">078</span><span id="line-78"> * thread(EventLoop) so no lock is needed.</span> |
| <span class="source-line-no">079</span><span id="line-79"> * <p/></span> |
| <span class="source-line-no">080</span><span id="line-80"> * <strong>Implementation assumptions:</strong> All the private methods should be called in the</span> |
| <span class="source-line-no">081</span><span id="line-81"> * {@link #eventLoop} thread, otherwise there will be races.</span> |
| <span class="source-line-no">082</span><span id="line-82"> * @since 2.0.0</span> |
| <span class="source-line-no">083</span><span id="line-83"> */</span> |
| <span class="source-line-no">084</span><span id="line-84">@InterfaceAudience.Private</span> |
| <span class="source-line-no">085</span><span id="line-85">class NettyRpcConnection extends RpcConnection {</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 static final Logger LOG = LoggerFactory.getLogger(NettyRpcConnection.class);</span> |
| <span class="source-line-no">088</span><span id="line-88"></span> |
| <span class="source-line-no">089</span><span id="line-89"> private static final ScheduledExecutorService RELOGIN_EXECUTOR = Executors</span> |
| <span class="source-line-no">090</span><span id="line-90"> .newSingleThreadScheduledExecutor(new ThreadFactoryBuilder().setNameFormat("Relogin-pool-%d")</span> |
| <span class="source-line-no">091</span><span id="line-91"> .setDaemon(true).setUncaughtExceptionHandler(Threads.LOGGING_EXCEPTION_HANDLER).build());</span> |
| <span class="source-line-no">092</span><span id="line-92"></span> |
| <span class="source-line-no">093</span><span id="line-93"> private final NettyRpcClient rpcClient;</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> // the event loop used to set up the connection, we will also execute other operations for this</span> |
| <span class="source-line-no">096</span><span id="line-96"> // connection in this event loop, to avoid locking everywhere.</span> |
| <span class="source-line-no">097</span><span id="line-97"> private final EventLoop eventLoop;</span> |
| <span class="source-line-no">098</span><span id="line-98"></span> |
| <span class="source-line-no">099</span><span id="line-99"> private ByteBuf connectionHeaderPreamble;</span> |
| <span class="source-line-no">100</span><span id="line-100"></span> |
| <span class="source-line-no">101</span><span id="line-101"> private ByteBuf connectionHeaderWithLength;</span> |
| <span class="source-line-no">102</span><span id="line-102"></span> |
| <span class="source-line-no">103</span><span id="line-103"> // make it volatile so in the isActive method below we do not need to switch to the event loop</span> |
| <span class="source-line-no">104</span><span id="line-104"> // thread to access this field.</span> |
| <span class="source-line-no">105</span><span id="line-105"> private volatile Channel channel;</span> |
| <span class="source-line-no">106</span><span id="line-106"></span> |
| <span class="source-line-no">107</span><span id="line-107"> NettyRpcConnection(NettyRpcClient rpcClient, ConnectionId remoteId) throws IOException {</span> |
| <span class="source-line-no">108</span><span id="line-108"> super(rpcClient.conf, AbstractRpcClient.WHEEL_TIMER, remoteId, rpcClient.clusterId,</span> |
| <span class="source-line-no">109</span><span id="line-109"> rpcClient.userProvider.isHBaseSecurityEnabled(), rpcClient.codec, rpcClient.compressor,</span> |
| <span class="source-line-no">110</span><span id="line-110"> rpcClient.cellBlockBuilder, rpcClient.metrics, rpcClient.connectionAttributes);</span> |
| <span class="source-line-no">111</span><span id="line-111"> this.rpcClient = rpcClient;</span> |
| <span class="source-line-no">112</span><span id="line-112"> this.eventLoop = rpcClient.group.next();</span> |
| <span class="source-line-no">113</span><span id="line-113"> byte[] connectionHeaderPreamble = getConnectionHeaderPreamble();</span> |
| <span class="source-line-no">114</span><span id="line-114"> this.connectionHeaderPreamble =</span> |
| <span class="source-line-no">115</span><span id="line-115"> Unpooled.directBuffer(connectionHeaderPreamble.length).writeBytes(connectionHeaderPreamble);</span> |
| <span class="source-line-no">116</span><span id="line-116"> ConnectionHeader header = getConnectionHeader();</span> |
| <span class="source-line-no">117</span><span id="line-117"> this.connectionHeaderWithLength = Unpooled.directBuffer(4 + header.getSerializedSize());</span> |
| <span class="source-line-no">118</span><span id="line-118"> this.connectionHeaderWithLength.writeInt(header.getSerializedSize());</span> |
| <span class="source-line-no">119</span><span id="line-119"> header.writeTo(new ByteBufOutputStream(this.connectionHeaderWithLength));</span> |
| <span class="source-line-no">120</span><span id="line-120"> }</span> |
| <span class="source-line-no">121</span><span id="line-121"></span> |
| <span class="source-line-no">122</span><span id="line-122"> @Override</span> |
| <span class="source-line-no">123</span><span id="line-123"> protected void callTimeout(Call call) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> execute(eventLoop, () -> {</span> |
| <span class="source-line-no">125</span><span id="line-125"> if (channel != null) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> channel.pipeline().fireUserEventTriggered(new CallEvent(TIMEOUT, call));</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"></span> |
| <span class="source-line-no">131</span><span id="line-131"> @Override</span> |
| <span class="source-line-no">132</span><span id="line-132"> public boolean isActive() {</span> |
| <span class="source-line-no">133</span><span id="line-133"> return channel != null;</span> |
| <span class="source-line-no">134</span><span id="line-134"> }</span> |
| <span class="source-line-no">135</span><span id="line-135"></span> |
| <span class="source-line-no">136</span><span id="line-136"> private void shutdown0() {</span> |
| <span class="source-line-no">137</span><span id="line-137"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">138</span><span id="line-138"> if (channel != null) {</span> |
| <span class="source-line-no">139</span><span id="line-139"> channel.close();</span> |
| <span class="source-line-no">140</span><span id="line-140"> channel = null;</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"> @Override</span> |
| <span class="source-line-no">145</span><span id="line-145"> public void shutdown() {</span> |
| <span class="source-line-no">146</span><span id="line-146"> execute(eventLoop, this::shutdown0);</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> @Override</span> |
| <span class="source-line-no">150</span><span id="line-150"> public void cleanupConnection() {</span> |
| <span class="source-line-no">151</span><span id="line-151"> execute(eventLoop, () -> {</span> |
| <span class="source-line-no">152</span><span id="line-152"> if (connectionHeaderPreamble != null) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> ReferenceCountUtil.safeRelease(connectionHeaderPreamble);</span> |
| <span class="source-line-no">154</span><span id="line-154"> connectionHeaderPreamble = null;</span> |
| <span class="source-line-no">155</span><span id="line-155"> }</span> |
| <span class="source-line-no">156</span><span id="line-156"> if (connectionHeaderWithLength != null) {</span> |
| <span class="source-line-no">157</span><span id="line-157"> ReferenceCountUtil.safeRelease(connectionHeaderWithLength);</span> |
| <span class="source-line-no">158</span><span id="line-158"> connectionHeaderWithLength = null;</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> |
| <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"> private void established(Channel ch) {</span> |
| <span class="source-line-no">164</span><span id="line-164"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">165</span><span id="line-165"> ch.pipeline()</span> |
| <span class="source-line-no">166</span><span id="line-166"> .addBefore(BufferCallBeforeInitHandler.NAME, null,</span> |
| <span class="source-line-no">167</span><span id="line-167"> new IdleStateHandler(0, rpcClient.minIdleTimeBeforeClose, 0, TimeUnit.MILLISECONDS))</span> |
| <span class="source-line-no">168</span><span id="line-168"> .addBefore(BufferCallBeforeInitHandler.NAME, null,</span> |
| <span class="source-line-no">169</span><span id="line-169"> new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4))</span> |
| <span class="source-line-no">170</span><span id="line-170"> .addBefore(BufferCallBeforeInitHandler.NAME, null,</span> |
| <span class="source-line-no">171</span><span id="line-171"> new NettyRpcDuplexHandler(this, rpcClient.cellBlockBuilder, codec, compressor))</span> |
| <span class="source-line-no">172</span><span id="line-172"> .fireUserEventTriggered(BufferCallEvent.success());</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"> private void saslEstablished(Channel ch, String serverPrincipal) {</span> |
| <span class="source-line-no">176</span><span id="line-176"> saslNegotiationDone(serverPrincipal, true);</span> |
| <span class="source-line-no">177</span><span id="line-177"> established(ch);</span> |
| <span class="source-line-no">178</span><span id="line-178"> }</span> |
| <span class="source-line-no">179</span><span id="line-179"></span> |
| <span class="source-line-no">180</span><span id="line-180"> private boolean reloginInProgress;</span> |
| <span class="source-line-no">181</span><span id="line-181"></span> |
| <span class="source-line-no">182</span><span id="line-182"> private void scheduleRelogin(Throwable error) {</span> |
| <span class="source-line-no">183</span><span id="line-183"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">184</span><span id="line-184"> if (error instanceof FallbackDisallowedException) {</span> |
| <span class="source-line-no">185</span><span id="line-185"> return;</span> |
| <span class="source-line-no">186</span><span id="line-186"> }</span> |
| <span class="source-line-no">187</span><span id="line-187"> if (!provider.canRetry()) {</span> |
| <span class="source-line-no">188</span><span id="line-188"> LOG.trace("SASL Provider does not support retries");</span> |
| <span class="source-line-no">189</span><span id="line-189"> return;</span> |
| <span class="source-line-no">190</span><span id="line-190"> }</span> |
| <span class="source-line-no">191</span><span id="line-191"> if (reloginInProgress) {</span> |
| <span class="source-line-no">192</span><span id="line-192"> return;</span> |
| <span class="source-line-no">193</span><span id="line-193"> }</span> |
| <span class="source-line-no">194</span><span id="line-194"> reloginInProgress = true;</span> |
| <span class="source-line-no">195</span><span id="line-195"> RELOGIN_EXECUTOR.schedule(() -> {</span> |
| <span class="source-line-no">196</span><span id="line-196"> try {</span> |
| <span class="source-line-no">197</span><span id="line-197"> provider.relogin();</span> |
| <span class="source-line-no">198</span><span id="line-198"> } catch (IOException e) {</span> |
| <span class="source-line-no">199</span><span id="line-199"> LOG.warn("Relogin failed", e);</span> |
| <span class="source-line-no">200</span><span id="line-200"> }</span> |
| <span class="source-line-no">201</span><span id="line-201"> eventLoop.execute(() -> {</span> |
| <span class="source-line-no">202</span><span id="line-202"> reloginInProgress = false;</span> |
| <span class="source-line-no">203</span><span id="line-203"> });</span> |
| <span class="source-line-no">204</span><span id="line-204"> }, ThreadLocalRandom.current().nextInt(reloginMaxBackoff), TimeUnit.MILLISECONDS);</span> |
| <span class="source-line-no">205</span><span id="line-205"> }</span> |
| <span class="source-line-no">206</span><span id="line-206"></span> |
| <span class="source-line-no">207</span><span id="line-207"> private void failInit(Channel ch, IOException e) {</span> |
| <span class="source-line-no">208</span><span id="line-208"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">209</span><span id="line-209"> // fail all pending calls</span> |
| <span class="source-line-no">210</span><span id="line-210"> ch.pipeline().fireUserEventTriggered(BufferCallEvent.fail(e));</span> |
| <span class="source-line-no">211</span><span id="line-211"> shutdown0();</span> |
| <span class="source-line-no">212</span><span id="line-212"> rpcClient.failedServers.addToFailedServers(remoteId.getAddress(), e);</span> |
| <span class="source-line-no">213</span><span id="line-213"> }</span> |
| <span class="source-line-no">214</span><span id="line-214"></span> |
| <span class="source-line-no">215</span><span id="line-215"> private void saslFailInit(Channel ch, String serverPrincipal, IOException error) {</span> |
| <span class="source-line-no">216</span><span id="line-216"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">217</span><span id="line-217"> saslNegotiationDone(serverPrincipal, false);</span> |
| <span class="source-line-no">218</span><span id="line-218"> failInit(ch, error);</span> |
| <span class="source-line-no">219</span><span id="line-219"> }</span> |
| <span class="source-line-no">220</span><span id="line-220"></span> |
| <span class="source-line-no">221</span><span id="line-221"> private void saslNegotiate(Channel ch, String serverPrincipal) {</span> |
| <span class="source-line-no">222</span><span id="line-222"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">223</span><span id="line-223"> NettyFutureUtils.safeWriteAndFlush(ch, connectionHeaderPreamble.retainedDuplicate());</span> |
| <span class="source-line-no">224</span><span id="line-224"> UserGroupInformation ticket = provider.getRealUser(remoteId.getTicket());</span> |
| <span class="source-line-no">225</span><span id="line-225"> if (ticket == null) {</span> |
| <span class="source-line-no">226</span><span id="line-226"> saslFailInit(ch, serverPrincipal, new FatalConnectionException("ticket/user is null"));</span> |
| <span class="source-line-no">227</span><span id="line-227"> return;</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</span> |
| <span class="source-line-no">229</span><span id="line-229"> Promise<Boolean> saslPromise = ch.eventLoop().newPromise();</span> |
| <span class="source-line-no">230</span><span id="line-230"> final NettyHBaseSaslRpcClientHandler saslHandler;</span> |
| <span class="source-line-no">231</span><span id="line-231"> try {</span> |
| <span class="source-line-no">232</span><span id="line-232"> saslHandler = new NettyHBaseSaslRpcClientHandler(saslPromise, ticket, provider, token,</span> |
| <span class="source-line-no">233</span><span id="line-233"> ((InetSocketAddress) ch.remoteAddress()).getAddress(), serverPrincipal,</span> |
| <span class="source-line-no">234</span><span id="line-234"> rpcClient.fallbackAllowed, this.rpcClient.conf);</span> |
| <span class="source-line-no">235</span><span id="line-235"> } catch (IOException e) {</span> |
| <span class="source-line-no">236</span><span id="line-236"> saslFailInit(ch, serverPrincipal, e);</span> |
| <span class="source-line-no">237</span><span id="line-237"> return;</span> |
| <span class="source-line-no">238</span><span id="line-238"> }</span> |
| <span class="source-line-no">239</span><span id="line-239"> ch.pipeline().addBefore(BufferCallBeforeInitHandler.NAME, null, new SaslChallengeDecoder())</span> |
| <span class="source-line-no">240</span><span id="line-240"> .addBefore(BufferCallBeforeInitHandler.NAME, NettyHBaseSaslRpcClientHandler.HANDLER_NAME,</span> |
| <span class="source-line-no">241</span><span id="line-241"> saslHandler);</span> |
| <span class="source-line-no">242</span><span id="line-242"> NettyFutureUtils.addListener(saslPromise, new FutureListener<Boolean>() {</span> |
| <span class="source-line-no">243</span><span id="line-243"></span> |
| <span class="source-line-no">244</span><span id="line-244"> @Override</span> |
| <span class="source-line-no">245</span><span id="line-245"> public void operationComplete(Future<Boolean> future) throws Exception {</span> |
| <span class="source-line-no">246</span><span id="line-246"> if (future.isSuccess()) {</span> |
| <span class="source-line-no">247</span><span id="line-247"> ChannelPipeline p = ch.pipeline();</span> |
| <span class="source-line-no">248</span><span id="line-248"> // check if negotiate with server for connection header is necessary</span> |
| <span class="source-line-no">249</span><span id="line-249"> if (saslHandler.isNeedProcessConnectionHeader()) {</span> |
| <span class="source-line-no">250</span><span id="line-250"> Promise<Boolean> connectionHeaderPromise = ch.eventLoop().newPromise();</span> |
| <span class="source-line-no">251</span><span id="line-251"> // create the handler to handle the connection header</span> |
| <span class="source-line-no">252</span><span id="line-252"> NettyHBaseRpcConnectionHeaderHandler chHandler =</span> |
| <span class="source-line-no">253</span><span id="line-253"> new NettyHBaseRpcConnectionHeaderHandler(connectionHeaderPromise, conf,</span> |
| <span class="source-line-no">254</span><span id="line-254"> connectionHeaderWithLength);</span> |
| <span class="source-line-no">255</span><span id="line-255"></span> |
| <span class="source-line-no">256</span><span id="line-256"> // add ReadTimeoutHandler to deal with server doesn't response connection header</span> |
| <span class="source-line-no">257</span><span id="line-257"> // because of the different configuration in client side and server side</span> |
| <span class="source-line-no">258</span><span id="line-258"> final String readTimeoutHandlerName = "ReadTimeout";</span> |
| <span class="source-line-no">259</span><span id="line-259"> p.addBefore(BufferCallBeforeInitHandler.NAME, readTimeoutHandlerName,</span> |
| <span class="source-line-no">260</span><span id="line-260"> new ReadTimeoutHandler(rpcClient.readTO, TimeUnit.MILLISECONDS))</span> |
| <span class="source-line-no">261</span><span id="line-261"> .addBefore(BufferCallBeforeInitHandler.NAME, null, chHandler);</span> |
| <span class="source-line-no">262</span><span id="line-262"> NettyFutureUtils.addListener(connectionHeaderPromise, new FutureListener<Boolean>() {</span> |
| <span class="source-line-no">263</span><span id="line-263"> @Override</span> |
| <span class="source-line-no">264</span><span id="line-264"> public void operationComplete(Future<Boolean> future) throws Exception {</span> |
| <span class="source-line-no">265</span><span id="line-265"> if (future.isSuccess()) {</span> |
| <span class="source-line-no">266</span><span id="line-266"> ChannelPipeline p = ch.pipeline();</span> |
| <span class="source-line-no">267</span><span id="line-267"> p.remove(readTimeoutHandlerName);</span> |
| <span class="source-line-no">268</span><span id="line-268"> p.remove(NettyHBaseRpcConnectionHeaderHandler.class);</span> |
| <span class="source-line-no">269</span><span id="line-269"> // don't send connection header, NettyHBaseRpcConnectionHeaderHandler</span> |
| <span class="source-line-no">270</span><span id="line-270"> // sent it already</span> |
| <span class="source-line-no">271</span><span id="line-271"> saslEstablished(ch, serverPrincipal);</span> |
| <span class="source-line-no">272</span><span id="line-272"> } else {</span> |
| <span class="source-line-no">273</span><span id="line-273"> final Throwable error = future.cause();</span> |
| <span class="source-line-no">274</span><span id="line-274"> scheduleRelogin(error);</span> |
| <span class="source-line-no">275</span><span id="line-275"> saslFailInit(ch, serverPrincipal, toIOE(error));</span> |
| <span class="source-line-no">276</span><span id="line-276"> }</span> |
| <span class="source-line-no">277</span><span id="line-277"> }</span> |
| <span class="source-line-no">278</span><span id="line-278"> });</span> |
| <span class="source-line-no">279</span><span id="line-279"> } else {</span> |
| <span class="source-line-no">280</span><span id="line-280"> // send the connection header to server</span> |
| <span class="source-line-no">281</span><span id="line-281"> ch.write(connectionHeaderWithLength.retainedDuplicate());</span> |
| <span class="source-line-no">282</span><span id="line-282"> saslEstablished(ch, serverPrincipal);</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"> final Throwable error = future.cause();</span> |
| <span class="source-line-no">286</span><span id="line-286"> scheduleRelogin(error);</span> |
| <span class="source-line-no">287</span><span id="line-287"> saslFailInit(ch, serverPrincipal, toIOE(error));</span> |
| <span class="source-line-no">288</span><span id="line-288"> }</span> |
| <span class="source-line-no">289</span><span id="line-289"> }</span> |
| <span class="source-line-no">290</span><span id="line-290"> });</span> |
| <span class="source-line-no">291</span><span id="line-291"> }</span> |
| <span class="source-line-no">292</span><span id="line-292"></span> |
| <span class="source-line-no">293</span><span id="line-293"> private void getConnectionRegistry(Channel ch, Call connectionRegistryCall) {</span> |
| <span class="source-line-no">294</span><span id="line-294"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">295</span><span id="line-295"> PreambleCallHandler.setup(ch.pipeline(), rpcClient.readTO, this,</span> |
| <span class="source-line-no">296</span><span id="line-296"> RpcClient.REGISTRY_PREAMBLE_HEADER, connectionRegistryCall);</span> |
| <span class="source-line-no">297</span><span id="line-297"> }</span> |
| <span class="source-line-no">298</span><span id="line-298"></span> |
| <span class="source-line-no">299</span><span id="line-299"> private void onSecurityPreambleError(Channel ch, Set<String> serverPrincipals,</span> |
| <span class="source-line-no">300</span><span id="line-300"> IOException error) {</span> |
| <span class="source-line-no">301</span><span id="line-301"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">302</span><span id="line-302"> LOG.debug("Error when trying to do a security preamble call to {}", remoteId.address, error);</span> |
| <span class="source-line-no">303</span><span id="line-303"> if (ConnectionUtils.isUnexpectedPreambleHeaderException(error)) {</span> |
| <span class="source-line-no">304</span><span id="line-304"> // this means we are connecting to an old server which does not support the security</span> |
| <span class="source-line-no">305</span><span id="line-305"> // preamble call, so we should fallback to randomly select a principal to use</span> |
| <span class="source-line-no">306</span><span id="line-306"> // TODO: find a way to reconnect without failing all the pending calls, for now, when we</span> |
| <span class="source-line-no">307</span><span id="line-307"> // reach here, shutdown should have already been scheduled</span> |
| <span class="source-line-no">308</span><span id="line-308"> return;</span> |
| <span class="source-line-no">309</span><span id="line-309"> }</span> |
| <span class="source-line-no">310</span><span id="line-310"> if (IPCUtil.isSecurityNotEnabledException(error)) {</span> |
| <span class="source-line-no">311</span><span id="line-311"> // server tells us security is not enabled, then we should check whether fallback to</span> |
| <span class="source-line-no">312</span><span id="line-312"> // simple is allowed, if so we just go without security, otherwise we should fail the</span> |
| <span class="source-line-no">313</span><span id="line-313"> // negotiation immediately</span> |
| <span class="source-line-no">314</span><span id="line-314"> if (rpcClient.fallbackAllowed) {</span> |
| <span class="source-line-no">315</span><span id="line-315"> // TODO: just change the preamble and skip the fallback to simple logic, for now, just</span> |
| <span class="source-line-no">316</span><span id="line-316"> // select the first principal can finish the connection setup, but waste one client</span> |
| <span class="source-line-no">317</span><span id="line-317"> // message</span> |
| <span class="source-line-no">318</span><span id="line-318"> saslNegotiate(ch, serverPrincipals.iterator().next());</span> |
| <span class="source-line-no">319</span><span id="line-319"> } else {</span> |
| <span class="source-line-no">320</span><span id="line-320"> failInit(ch, new FallbackDisallowedException());</span> |
| <span class="source-line-no">321</span><span id="line-321"> }</span> |
| <span class="source-line-no">322</span><span id="line-322"> return;</span> |
| <span class="source-line-no">323</span><span id="line-323"> }</span> |
| <span class="source-line-no">324</span><span id="line-324"> // usually we should not reach here, but for robust, just randomly select a principal to</span> |
| <span class="source-line-no">325</span><span id="line-325"> // connect</span> |
| <span class="source-line-no">326</span><span id="line-326"> saslNegotiate(ch, randomSelect(serverPrincipals));</span> |
| <span class="source-line-no">327</span><span id="line-327"> }</span> |
| <span class="source-line-no">328</span><span id="line-328"></span> |
| <span class="source-line-no">329</span><span id="line-329"> private void onSecurityPreambleFinish(Channel ch, Set<String> serverPrincipals,</span> |
| <span class="source-line-no">330</span><span id="line-330"> Call securityPreambleCall) {</span> |
| <span class="source-line-no">331</span><span id="line-331"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">332</span><span id="line-332"> String serverPrincipal;</span> |
| <span class="source-line-no">333</span><span id="line-333"> try {</span> |
| <span class="source-line-no">334</span><span id="line-334"> serverPrincipal = chooseServerPrincipal(serverPrincipals, securityPreambleCall);</span> |
| <span class="source-line-no">335</span><span id="line-335"> } catch (SaslException e) {</span> |
| <span class="source-line-no">336</span><span id="line-336"> failInit(ch, e);</span> |
| <span class="source-line-no">337</span><span id="line-337"> return;</span> |
| <span class="source-line-no">338</span><span id="line-338"> }</span> |
| <span class="source-line-no">339</span><span id="line-339"> saslNegotiate(ch, serverPrincipal);</span> |
| <span class="source-line-no">340</span><span id="line-340"> }</span> |
| <span class="source-line-no">341</span><span id="line-341"></span> |
| <span class="source-line-no">342</span><span id="line-342"> private void saslNegotiate(Channel ch) throws IOException {</span> |
| <span class="source-line-no">343</span><span id="line-343"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">344</span><span id="line-344"> Set<String> serverPrincipals = getServerPrincipals();</span> |
| <span class="source-line-no">345</span><span id="line-345"> if (serverPrincipals.size() == 1) {</span> |
| <span class="source-line-no">346</span><span id="line-346"> saslNegotiate(ch, serverPrincipals.iterator().next());</span> |
| <span class="source-line-no">347</span><span id="line-347"> return;</span> |
| <span class="source-line-no">348</span><span id="line-348"> }</span> |
| <span class="source-line-no">349</span><span id="line-349"> // this means we use kerberos authentication and there are multiple server principal candidates,</span> |
| <span class="source-line-no">350</span><span id="line-350"> // in this way we need to send a special preamble header to get server principal from server</span> |
| <span class="source-line-no">351</span><span id="line-351"> Call securityPreambleCall = createSecurityPreambleCall(call -> {</span> |
| <span class="source-line-no">352</span><span id="line-352"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">353</span><span id="line-353"> if (call.error != null) {</span> |
| <span class="source-line-no">354</span><span id="line-354"> onSecurityPreambleError(ch, serverPrincipals, call.error);</span> |
| <span class="source-line-no">355</span><span id="line-355"> } else {</span> |
| <span class="source-line-no">356</span><span id="line-356"> onSecurityPreambleFinish(ch, serverPrincipals, call);</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"> PreambleCallHandler.setup(ch.pipeline(), rpcClient.readTO, this,</span> |
| <span class="source-line-no">360</span><span id="line-360"> RpcClient.SECURITY_PREAMBLE_HEADER, securityPreambleCall);</span> |
| <span class="source-line-no">361</span><span id="line-361"> }</span> |
| <span class="source-line-no">362</span><span id="line-362"></span> |
| <span class="source-line-no">363</span><span id="line-363"> private void connect(Call connectionRegistryCall) throws UnknownHostException {</span> |
| <span class="source-line-no">364</span><span id="line-364"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">365</span><span id="line-365"> LOG.trace("Connecting to {}", remoteId.getAddress());</span> |
| <span class="source-line-no">366</span><span id="line-366"> InetSocketAddress remoteAddr = getRemoteInetAddress(rpcClient.metrics);</span> |
| <span class="source-line-no">367</span><span id="line-367"> this.channel = new Bootstrap().group(eventLoop).channel(rpcClient.channelClass)</span> |
| <span class="source-line-no">368</span><span id="line-368"> .option(ChannelOption.TCP_NODELAY, rpcClient.isTcpNoDelay())</span> |
| <span class="source-line-no">369</span><span id="line-369"> .option(ChannelOption.SO_KEEPALIVE, rpcClient.tcpKeepAlive)</span> |
| <span class="source-line-no">370</span><span id="line-370"> .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, rpcClient.connectTO)</span> |
| <span class="source-line-no">371</span><span id="line-371"> .handler(new ChannelInitializer<Channel>() {</span> |
| <span class="source-line-no">372</span><span id="line-372"> @Override</span> |
| <span class="source-line-no">373</span><span id="line-373"> protected void initChannel(Channel ch) throws Exception {</span> |
| <span class="source-line-no">374</span><span id="line-374"> if (conf.getBoolean(X509Util.HBASE_CLIENT_NETTY_TLS_ENABLED, false)) {</span> |
| <span class="source-line-no">375</span><span id="line-375"> SslContext sslContext = rpcClient.getSslContext();</span> |
| <span class="source-line-no">376</span><span id="line-376"> SslHandler sslHandler = sslContext.newHandler(ch.alloc(),</span> |
| <span class="source-line-no">377</span><span id="line-377"> remoteId.address.getHostName(), remoteId.address.getPort());</span> |
| <span class="source-line-no">378</span><span id="line-378"> sslHandler.setHandshakeTimeoutMillis(</span> |
| <span class="source-line-no">379</span><span id="line-379"> conf.getInt(X509Util.HBASE_CLIENT_NETTY_TLS_HANDSHAKETIMEOUT,</span> |
| <span class="source-line-no">380</span><span id="line-380"> X509Util.DEFAULT_HANDSHAKE_DETECTION_TIMEOUT_MILLIS));</span> |
| <span class="source-line-no">381</span><span id="line-381"> ch.pipeline().addFirst(sslHandler);</span> |
| <span class="source-line-no">382</span><span id="line-382"> LOG.debug("SSL handler added with handshake timeout {} ms",</span> |
| <span class="source-line-no">383</span><span id="line-383"> sslHandler.getHandshakeTimeoutMillis());</span> |
| <span class="source-line-no">384</span><span id="line-384"> }</span> |
| <span class="source-line-no">385</span><span id="line-385"> ch.pipeline().addLast(BufferCallBeforeInitHandler.NAME,</span> |
| <span class="source-line-no">386</span><span id="line-386"> new BufferCallBeforeInitHandler());</span> |
| <span class="source-line-no">387</span><span id="line-387"> }</span> |
| <span class="source-line-no">388</span><span id="line-388"> }).localAddress(rpcClient.localAddr).remoteAddress(remoteAddr).connect()</span> |
| <span class="source-line-no">389</span><span id="line-389"> .addListener(new ChannelFutureListener() {</span> |
| <span class="source-line-no">390</span><span id="line-390"></span> |
| <span class="source-line-no">391</span><span id="line-391"> private void succeed(Channel ch) throws IOException {</span> |
| <span class="source-line-no">392</span><span id="line-392"> if (connectionRegistryCall != null) {</span> |
| <span class="source-line-no">393</span><span id="line-393"> getConnectionRegistry(ch, connectionRegistryCall);</span> |
| <span class="source-line-no">394</span><span id="line-394"> return;</span> |
| <span class="source-line-no">395</span><span id="line-395"> }</span> |
| <span class="source-line-no">396</span><span id="line-396"> if (!useSasl) {</span> |
| <span class="source-line-no">397</span><span id="line-397"> // BufferCallBeforeInitHandler will call ctx.flush when receiving the</span> |
| <span class="source-line-no">398</span><span id="line-398"> // BufferCallEvent.success() event, so here we just use write for the below two messages</span> |
| <span class="source-line-no">399</span><span id="line-399"> NettyFutureUtils.safeWrite(ch, connectionHeaderPreamble.retainedDuplicate());</span> |
| <span class="source-line-no">400</span><span id="line-400"> NettyFutureUtils.safeWrite(ch, connectionHeaderWithLength.retainedDuplicate());</span> |
| <span class="source-line-no">401</span><span id="line-401"> established(ch);</span> |
| <span class="source-line-no">402</span><span id="line-402"> } else {</span> |
| <span class="source-line-no">403</span><span id="line-403"> saslNegotiate(ch);</span> |
| <span class="source-line-no">404</span><span id="line-404"> }</span> |
| <span class="source-line-no">405</span><span id="line-405"> }</span> |
| <span class="source-line-no">406</span><span id="line-406"></span> |
| <span class="source-line-no">407</span><span id="line-407"> private void fail(Channel ch, Throwable error) {</span> |
| <span class="source-line-no">408</span><span id="line-408"> IOException ex = toIOE(error);</span> |
| <span class="source-line-no">409</span><span id="line-409"> LOG.warn("Exception encountered while connecting to the server " + remoteId.getAddress(),</span> |
| <span class="source-line-no">410</span><span id="line-410"> ex);</span> |
| <span class="source-line-no">411</span><span id="line-411"> if (connectionRegistryCall != null) {</span> |
| <span class="source-line-no">412</span><span id="line-412"> connectionRegistryCall.setException(ex);</span> |
| <span class="source-line-no">413</span><span id="line-413"> }</span> |
| <span class="source-line-no">414</span><span id="line-414"> failInit(ch, ex);</span> |
| <span class="source-line-no">415</span><span id="line-415"> }</span> |
| <span class="source-line-no">416</span><span id="line-416"></span> |
| <span class="source-line-no">417</span><span id="line-417"> @Override</span> |
| <span class="source-line-no">418</span><span id="line-418"> public void operationComplete(ChannelFuture future) throws Exception {</span> |
| <span class="source-line-no">419</span><span id="line-419"> Channel ch = future.channel();</span> |
| <span class="source-line-no">420</span><span id="line-420"> if (!future.isSuccess()) {</span> |
| <span class="source-line-no">421</span><span id="line-421"> fail(ch, future.cause());</span> |
| <span class="source-line-no">422</span><span id="line-422"> return;</span> |
| <span class="source-line-no">423</span><span id="line-423"> }</span> |
| <span class="source-line-no">424</span><span id="line-424"> SslHandler sslHandler = ch.pipeline().get(SslHandler.class);</span> |
| <span class="source-line-no">425</span><span id="line-425"> if (sslHandler != null) {</span> |
| <span class="source-line-no">426</span><span id="line-426"> NettyFutureUtils.addListener(sslHandler.handshakeFuture(), f -> {</span> |
| <span class="source-line-no">427</span><span id="line-427"> if (f.isSuccess()) {</span> |
| <span class="source-line-no">428</span><span id="line-428"> succeed(ch);</span> |
| <span class="source-line-no">429</span><span id="line-429"> } else {</span> |
| <span class="source-line-no">430</span><span id="line-430"> fail(ch, f.cause());</span> |
| <span class="source-line-no">431</span><span id="line-431"> }</span> |
| <span class="source-line-no">432</span><span id="line-432"> });</span> |
| <span class="source-line-no">433</span><span id="line-433"> } else {</span> |
| <span class="source-line-no">434</span><span id="line-434"> succeed(ch);</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"> }).channel();</span> |
| <span class="source-line-no">438</span><span id="line-438"> }</span> |
| <span class="source-line-no">439</span><span id="line-439"></span> |
| <span class="source-line-no">440</span><span id="line-440"> private void sendRequest0(Call call, HBaseRpcController hrc) throws IOException {</span> |
| <span class="source-line-no">441</span><span id="line-441"> assert eventLoop.inEventLoop();</span> |
| <span class="source-line-no">442</span><span id="line-442"> if (call.isConnectionRegistryCall()) {</span> |
| <span class="source-line-no">443</span><span id="line-443"> // For get connection registry call, we will send a special preamble header to get the</span> |
| <span class="source-line-no">444</span><span id="line-444"> // response, instead of sending a real rpc call. See HBASE-25051</span> |
| <span class="source-line-no">445</span><span id="line-445"> connect(call);</span> |
| <span class="source-line-no">446</span><span id="line-446"> return;</span> |
| <span class="source-line-no">447</span><span id="line-447"> }</span> |
| <span class="source-line-no">448</span><span id="line-448"> if (reloginInProgress) {</span> |
| <span class="source-line-no">449</span><span id="line-449"> throw new IOException(RpcConnectionConstants.RELOGIN_IS_IN_PROGRESS);</span> |
| <span class="source-line-no">450</span><span id="line-450"> }</span> |
| <span class="source-line-no">451</span><span id="line-451"> hrc.notifyOnCancel(new RpcCallback<Object>() {</span> |
| <span class="source-line-no">452</span><span id="line-452"></span> |
| <span class="source-line-no">453</span><span id="line-453"> @Override</span> |
| <span class="source-line-no">454</span><span id="line-454"> public void run(Object parameter) {</span> |
| <span class="source-line-no">455</span><span id="line-455"> setCancelled(call);</span> |
| <span class="source-line-no">456</span><span id="line-456"> if (channel != null) {</span> |
| <span class="source-line-no">457</span><span id="line-457"> channel.pipeline().fireUserEventTriggered(new CallEvent(CANCELLED, call));</span> |
| <span class="source-line-no">458</span><span id="line-458"> }</span> |
| <span class="source-line-no">459</span><span id="line-459"> }</span> |
| <span class="source-line-no">460</span><span id="line-460"> }, new CancellationCallback() {</span> |
| <span class="source-line-no">461</span><span id="line-461"></span> |
| <span class="source-line-no">462</span><span id="line-462"> @Override</span> |
| <span class="source-line-no">463</span><span id="line-463"> public void run(boolean cancelled) throws IOException {</span> |
| <span class="source-line-no">464</span><span id="line-464"> if (cancelled) {</span> |
| <span class="source-line-no">465</span><span id="line-465"> setCancelled(call);</span> |
| <span class="source-line-no">466</span><span id="line-466"> } else {</span> |
| <span class="source-line-no">467</span><span id="line-467"> if (channel == null) {</span> |
| <span class="source-line-no">468</span><span id="line-468"> connect(null);</span> |
| <span class="source-line-no">469</span><span id="line-469"> }</span> |
| <span class="source-line-no">470</span><span id="line-470"> scheduleTimeoutTask(call);</span> |
| <span class="source-line-no">471</span><span id="line-471"> channel.writeAndFlush(call).addListener(new ChannelFutureListener() {</span> |
| <span class="source-line-no">472</span><span id="line-472"></span> |
| <span class="source-line-no">473</span><span id="line-473"> @Override</span> |
| <span class="source-line-no">474</span><span id="line-474"> public void operationComplete(ChannelFuture future) throws Exception {</span> |
| <span class="source-line-no">475</span><span id="line-475"> // Fail the call if we failed to write it out. This usually because the channel is</span> |
| <span class="source-line-no">476</span><span id="line-476"> // closed. This is needed because we may shutdown the channel inside event loop and</span> |
| <span class="source-line-no">477</span><span id="line-477"> // there may still be some pending calls in the event loop queue after us.</span> |
| <span class="source-line-no">478</span><span id="line-478"> if (!future.isSuccess()) {</span> |
| <span class="source-line-no">479</span><span id="line-479"> call.setException(toIOE(future.cause()));</span> |
| <span class="source-line-no">480</span><span id="line-480"> }</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"> }</span> |
| <span class="source-line-no">484</span><span id="line-484"> }</span> |
| <span class="source-line-no">485</span><span id="line-485"> });</span> |
| <span class="source-line-no">486</span><span id="line-486"> }</span> |
| <span class="source-line-no">487</span><span id="line-487"></span> |
| <span class="source-line-no">488</span><span id="line-488"> @Override</span> |
| <span class="source-line-no">489</span><span id="line-489"> public void sendRequest(final Call call, HBaseRpcController hrc) {</span> |
| <span class="source-line-no">490</span><span id="line-490"> execute(eventLoop, () -> {</span> |
| <span class="source-line-no">491</span><span id="line-491"> try {</span> |
| <span class="source-line-no">492</span><span id="line-492"> sendRequest0(call, hrc);</span> |
| <span class="source-line-no">493</span><span id="line-493"> } catch (Exception e) {</span> |
| <span class="source-line-no">494</span><span id="line-494"> call.setException(toIOE(e));</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> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
