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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.ipc;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import io.opentelemetry.context.Scope;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.HashMap;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.codec.Codec;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.exceptions.ConnectionClosedException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.io.compress.CompressionCodec;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.slf4j.Logger;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.slf4j.LoggerFactory;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span><a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufInputStream;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufOutputStream;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelDuplexHandler;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelFuture;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelPromise;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateEvent;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.PromiseCombiner;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.CellBlockMeta;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span><a name="line.43"></a> |
| <span class="sourceLineNo">044</span>/**<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * The netty rpc handler.<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * @since 2.0.0<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>@InterfaceAudience.Private<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>class NettyRpcDuplexHandler extends ChannelDuplexHandler {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> private static final Logger LOG = LoggerFactory.getLogger(NettyRpcDuplexHandler.class);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private final NettyRpcConnection conn;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private final CellBlockBuilder cellBlockBuilder;<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> private final Codec codec;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private final CompressionCodec compressor;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private final Map<Integer, Call> id2Call = new HashMap<>();<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public NettyRpcDuplexHandler(NettyRpcConnection conn, CellBlockBuilder cellBlockBuilder,<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> Codec codec, CompressionCodec compressor) {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> this.conn = conn;<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> this.cellBlockBuilder = cellBlockBuilder;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> this.codec = codec;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> this.compressor = compressor;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> }<a name="line.70"></a> |
| <span class="sourceLineNo">071</span><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> private void writeRequest(ChannelHandlerContext ctx, Call call, ChannelPromise promise)<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> throws IOException {<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> id2Call.put(call.id, call);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> ByteBuf cellBlock = cellBlockBuilder.buildCellBlock(codec, compressor, call.cells, ctx.alloc());<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> CellBlockMeta cellBlockMeta;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> if (cellBlock != null) {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> CellBlockMeta.Builder cellBlockMetaBuilder = CellBlockMeta.newBuilder();<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> cellBlockMetaBuilder.setLength(cellBlock.writerIndex());<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> cellBlockMeta = cellBlockMetaBuilder.build();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> } else {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> cellBlockMeta = null;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> RequestHeader requestHeader = IPCUtil.buildRequestHeader(call, cellBlockMeta);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> int sizeWithoutCellBlock = IPCUtil.getTotalSizeWhenWrittenDelimited(requestHeader, call.param);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> int totalSize =<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> cellBlock != null ? sizeWithoutCellBlock + cellBlock.writerIndex() : sizeWithoutCellBlock;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> ByteBuf buf = ctx.alloc().buffer(sizeWithoutCellBlock + 4);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> buf.writeInt(totalSize);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> try (ByteBufOutputStream bbos = new ByteBufOutputStream(buf)) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> requestHeader.writeDelimitedTo(bbos);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (call.param != null) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> call.param.writeDelimitedTo(bbos);<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> if (cellBlock != null) {<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> ChannelPromise withoutCellBlockPromise = ctx.newPromise();<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> ctx.write(buf, withoutCellBlockPromise);<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> ChannelPromise cellBlockPromise = ctx.newPromise();<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> ctx.write(cellBlock, cellBlockPromise);<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> PromiseCombiner combiner = new PromiseCombiner(ctx.executor());<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> combiner.addAll((ChannelFuture) withoutCellBlockPromise, cellBlockPromise);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> combiner.finish(promise);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> } else {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> ctx.write(buf, promise);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> call.callStats.setRequestSizeBytes(totalSize);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> }<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> @Override<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise)<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> throws Exception {<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (msg instanceof Call) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> Call call = (Call) msg;<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> try (Scope scope = call.span.makeCurrent()) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> writeRequest(ctx, call, promise);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> } else {<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> ctx.write(msg, promise);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> }<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> private void readResponse(ChannelHandlerContext ctx, ByteBuf buf) throws IOException {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> try {<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> conn.readResponse(new ByteBufInputStream(buf), id2Call, null,<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> remoteExc -> exceptionCaught(ctx, remoteExc));<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> } catch (IOException e) {<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // In netty, the decoding the frame based, when reaching here we have already read a full<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // frame, so hitting exception here does not mean the stream decoding is broken, thus we do<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // not need to throw the exception out and close the connection.<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> LOG.warn("failed to process response", e);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> }<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> }<a name="line.133"></a> |
| <span class="sourceLineNo">134</span><a name="line.134"></a> |
| <span class="sourceLineNo">135</span> @Override<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> if (msg instanceof ByteBuf) {<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> ByteBuf buf = (ByteBuf) msg;<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> try {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> readResponse(ctx, buf);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> } finally {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> buf.release();<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> } else {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> super.channelRead(ctx, msg);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> }<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> private void cleanupCalls(IOException error) {<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> for (Call call : id2Call.values()) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> call.setException(error);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> id2Call.clear();<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> }<a name="line.154"></a> |
| <span class="sourceLineNo">155</span><a name="line.155"></a> |
| <span class="sourceLineNo">156</span> @Override<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> public void channelInactive(ChannelHandlerContext ctx) throws Exception {<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> if (!id2Call.isEmpty()) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> cleanupCalls(new ConnectionClosedException("Connection closed"));<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> conn.shutdown();<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> ctx.fireChannelInactive();<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> }<a name="line.163"></a> |
| <span class="sourceLineNo">164</span><a name="line.164"></a> |
| <span class="sourceLineNo">165</span> @Override<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> if (!id2Call.isEmpty()) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> cleanupCalls(IPCUtil.toIOE(cause));<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> conn.shutdown();<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> }<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> @Override<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> if (evt instanceof IdleStateEvent) {<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> IdleStateEvent idleEvt = (IdleStateEvent) evt;<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> switch (idleEvt.state()) {<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> case WRITER_IDLE:<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> if (id2Call.isEmpty()) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> if (LOG.isTraceEnabled()) {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> LOG.trace("shutdown connection to " + conn.remoteId().address<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> + " because idle for a long time");<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> }<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // It may happen that there are still some pending calls in the event loop queue and<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> // they will get a closed channel exception. But this is not a big deal as it rarely<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> // rarely happens and the upper layer could retry immediately.<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> conn.shutdown();<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> }<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> break;<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> default:<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> LOG.warn("Unrecognized idle state " + idleEvt.state());<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> break;<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> }<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> } else if (evt instanceof CallEvent) {<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> // just remove the call for now until we add other call event other than timeout and cancel.<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> id2Call.remove(((CallEvent) evt).call.id);<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> } else {<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> ctx.fireUserEventTriggered(evt);<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> }<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span>}<a name="line.201"></a> |
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