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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.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 org.apache.hadoop.hbase.trace.TraceUtil.trace;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.trace.TraceUtil.tracedFuture;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.util.FutureUtils.addListener;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">import com.google.errorprone.annotations.RestrictedApi;</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.util.ArrayList;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.util.Collections;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.List;</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.CompletableFuture;</span> |
| <span class="source-line-no">031</span><span id="line-31">import java.util.concurrent.ConcurrentLinkedQueue;</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.atomic.AtomicInteger;</span> |
| <span class="source-line-no">034</span><span id="line-34">import java.util.function.Predicate;</span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">036</span><span id="line-36">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">037</span><span id="line-37">import org.apache.hadoop.hbase.RegionLocations;</span> |
| <span class="source-line-no">038</span><span id="line-38">import org.apache.hadoop.hbase.ServerName;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.exceptions.MasterRegistryFetchException;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.ipc.HBaseRpcController;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.ipc.RpcControllerFactory;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.security.User;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.util.FutureUtils;</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"></span> |
| <span class="source-line-no">047</span><span id="line-47">import org.apache.hbase.thirdparty.com.google.protobuf.Message;</span> |
| <span class="source-line-no">048</span><span id="line-48">import org.apache.hbase.thirdparty.com.google.protobuf.RpcCallback;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.ClientMetaService;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetActiveMasterRequest;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetActiveMasterResponse;</span> |
| <span class="source-line-no">054</span><span id="line-54">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetClusterIdRequest;</span> |
| <span class="source-line-no">055</span><span id="line-55">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetClusterIdResponse;</span> |
| <span class="source-line-no">056</span><span id="line-56">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetMetaRegionLocationsRequest;</span> |
| <span class="source-line-no">057</span><span id="line-57">import org.apache.hadoop.hbase.shaded.protobuf.generated.RegistryProtos.GetMetaRegionLocationsResponse;</span> |
| <span class="source-line-no">058</span><span id="line-58"></span> |
| <span class="source-line-no">059</span><span id="line-59">/**</span> |
| <span class="source-line-no">060</span><span id="line-60"> * Base class for rpc based connection registry implementation.</span> |
| <span class="source-line-no">061</span><span id="line-61"> * <p/></span> |
| <span class="source-line-no">062</span><span id="line-62"> * The implementation needs a bootstrap node list in configuration, and then it will use the methods</span> |
| <span class="source-line-no">063</span><span id="line-63"> * in {@link ClientMetaService} to refresh the connection registry end points.</span> |
| <span class="source-line-no">064</span><span id="line-64"> * <p/></span> |
| <span class="source-line-no">065</span><span id="line-65"> * It also supports hedged reads, the default fan out value is 2.</span> |
| <span class="source-line-no">066</span><span id="line-66"> * <p/></span> |
| <span class="source-line-no">067</span><span id="line-67"> * For the actual configuration names, see javadoc of sub classes.</span> |
| <span class="source-line-no">068</span><span id="line-68"> */</span> |
| <span class="source-line-no">069</span><span id="line-69">@InterfaceAudience.Private</span> |
| <span class="source-line-no">070</span><span id="line-70">abstract class AbstractRpcBasedConnectionRegistry implements ConnectionRegistry {</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> /** Default value for the fan out of hedged requests. **/</span> |
| <span class="source-line-no">073</span><span id="line-73"> public static final int HEDGED_REQS_FANOUT_DEFAULT = 2;</span> |
| <span class="source-line-no">074</span><span id="line-74"></span> |
| <span class="source-line-no">075</span><span id="line-75"> private final int hedgedReadFanOut;</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> // RPC client used to talk to the masters.</span> |
| <span class="source-line-no">078</span><span id="line-78"> private final ConnectionRegistryRpcStubHolder rpcStubHolder;</span> |
| <span class="source-line-no">079</span><span id="line-79"> private final RpcControllerFactory rpcControllerFactory;</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> private final RegistryEndpointsRefresher registryEndpointRefresher;</span> |
| <span class="source-line-no">082</span><span id="line-82"></span> |
| <span class="source-line-no">083</span><span id="line-83"> protected AbstractRpcBasedConnectionRegistry(Configuration conf, User user,</span> |
| <span class="source-line-no">084</span><span id="line-84"> String hedgedReqsFanoutConfigName, String initialRefreshDelaySecsConfigName,</span> |
| <span class="source-line-no">085</span><span id="line-85"> String refreshIntervalSecsConfigName, String minRefreshIntervalSecsConfigName)</span> |
| <span class="source-line-no">086</span><span id="line-86"> throws IOException {</span> |
| <span class="source-line-no">087</span><span id="line-87"> this.hedgedReadFanOut =</span> |
| <span class="source-line-no">088</span><span id="line-88"> Math.max(1, conf.getInt(hedgedReqsFanoutConfigName, HEDGED_REQS_FANOUT_DEFAULT));</span> |
| <span class="source-line-no">089</span><span id="line-89"> rpcControllerFactory = RpcControllerFactory.instantiate(conf);</span> |
| <span class="source-line-no">090</span><span id="line-90"> rpcStubHolder = new ConnectionRegistryRpcStubHolder(conf, user, rpcControllerFactory,</span> |
| <span class="source-line-no">091</span><span id="line-91"> getBootstrapNodes(conf));</span> |
| <span class="source-line-no">092</span><span id="line-92"> // could return null here is refresh interval is less than zero</span> |
| <span class="source-line-no">093</span><span id="line-93"> registryEndpointRefresher =</span> |
| <span class="source-line-no">094</span><span id="line-94"> RegistryEndpointsRefresher.create(conf, initialRefreshDelaySecsConfigName,</span> |
| <span class="source-line-no">095</span><span id="line-95"> refreshIntervalSecsConfigName, minRefreshIntervalSecsConfigName, this::refreshStubs);</span> |
| <span class="source-line-no">096</span><span id="line-96"> }</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> protected abstract Set<ServerName> getBootstrapNodes(Configuration conf) throws IOException;</span> |
| <span class="source-line-no">099</span><span id="line-99"></span> |
| <span class="source-line-no">100</span><span id="line-100"> protected abstract CompletableFuture<Set<ServerName>> fetchEndpoints();</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> private void refreshStubs() throws IOException {</span> |
| <span class="source-line-no">103</span><span id="line-103"> rpcStubHolder.refreshStubs(() -> FutureUtils.get(fetchEndpoints()));</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"></span> |
| <span class="source-line-no">106</span><span id="line-106"> /**</span> |
| <span class="source-line-no">107</span><span id="line-107"> * For describing the actual asynchronous rpc call.</span> |
| <span class="source-line-no">108</span><span id="line-108"> * <p/></span> |
| <span class="source-line-no">109</span><span id="line-109"> * Typically, you can use lambda expression to implement this interface as</span> |
| <span class="source-line-no">110</span><span id="line-110"> *</span> |
| <span class="source-line-no">111</span><span id="line-111"> * <pre></span> |
| <span class="source-line-no">112</span><span id="line-112"> * (c, s, d) -&gt; s.xxx(c, your request here, d)</span> |
| <span class="source-line-no">113</span><span id="line-113"> * </pre></span> |
| <span class="source-line-no">114</span><span id="line-114"> */</span> |
| <span class="source-line-no">115</span><span id="line-115"> @FunctionalInterface</span> |
| <span class="source-line-no">116</span><span id="line-116"> protected interface Callable<T> {</span> |
| <span class="source-line-no">117</span><span id="line-117"> void call(HBaseRpcController controller, ClientMetaService.Interface stub, RpcCallback<T> done);</span> |
| <span class="source-line-no">118</span><span id="line-118"> }</span> |
| <span class="source-line-no">119</span><span id="line-119"></span> |
| <span class="source-line-no">120</span><span id="line-120"> private <T extends Message> CompletableFuture<T> call(ClientMetaService.Interface stub,</span> |
| <span class="source-line-no">121</span><span id="line-121"> Callable<T> callable) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> HBaseRpcController controller = rpcControllerFactory.newController();</span> |
| <span class="source-line-no">123</span><span id="line-123"> CompletableFuture<T> future = new CompletableFuture<>();</span> |
| <span class="source-line-no">124</span><span id="line-124"> callable.call(controller, stub, resp -> {</span> |
| <span class="source-line-no">125</span><span id="line-125"> if (controller.failed()) {</span> |
| <span class="source-line-no">126</span><span id="line-126"> IOException failureReason = controller.getFailed();</span> |
| <span class="source-line-no">127</span><span id="line-127"> future.completeExceptionally(failureReason);</span> |
| <span class="source-line-no">128</span><span id="line-128"> if (ClientExceptionsUtil.isConnectionException(failureReason)) {</span> |
| <span class="source-line-no">129</span><span id="line-129"> // RPC has failed, trigger a refresh of end points. We can have some spurious</span> |
| <span class="source-line-no">130</span><span id="line-130"> // refreshes, but that is okay since the RPC is not expensive and not in a hot path.</span> |
| <span class="source-line-no">131</span><span id="line-131"> registryEndpointRefresher.refreshNow();</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"> } else {</span> |
| <span class="source-line-no">134</span><span id="line-134"> future.complete(resp);</span> |
| <span class="source-line-no">135</span><span id="line-135"> }</span> |
| <span class="source-line-no">136</span><span id="line-136"> });</span> |
| <span class="source-line-no">137</span><span id="line-137"> return future;</span> |
| <span class="source-line-no">138</span><span id="line-138"> }</span> |
| <span class="source-line-no">139</span><span id="line-139"></span> |
| <span class="source-line-no">140</span><span id="line-140"> private IOException badResponse(String debug) {</span> |
| <span class="source-line-no">141</span><span id="line-141"> return new IOException(String.format("Invalid result for request %s. Will be retried", debug));</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"> /**</span> |
| <span class="source-line-no">145</span><span id="line-145"> * send requests concurrently to hedgedReadsFanout end points. If any of the request is succeeded,</span> |
| <span class="source-line-no">146</span><span id="line-146"> * we will complete the future and quit. If all the requests in one round are failed, we will</span> |
| <span class="source-line-no">147</span><span id="line-147"> * start another round to send requests concurrently tohedgedReadsFanout end points. If all end</span> |
| <span class="source-line-no">148</span><span id="line-148"> * points have been tried and all of them are failed, we will fail the future.</span> |
| <span class="source-line-no">149</span><span id="line-149"> */</span> |
| <span class="source-line-no">150</span><span id="line-150"> private <T extends Message> void groupCall(CompletableFuture<T> future, Set<ServerName> servers,</span> |
| <span class="source-line-no">151</span><span id="line-151"> List<ClientMetaService.Interface> stubs, int startIndexInclusive, Callable<T> callable,</span> |
| <span class="source-line-no">152</span><span id="line-152"> Predicate<T> isValidResp, String debug, ConcurrentLinkedQueue<Throwable> errors) {</span> |
| <span class="source-line-no">153</span><span id="line-153"> int endIndexExclusive = Math.min(startIndexInclusive + hedgedReadFanOut, stubs.size());</span> |
| <span class="source-line-no">154</span><span id="line-154"> AtomicInteger remaining = new AtomicInteger(endIndexExclusive - startIndexInclusive);</span> |
| <span class="source-line-no">155</span><span id="line-155"> for (int i = startIndexInclusive; i < endIndexExclusive; i++) {</span> |
| <span class="source-line-no">156</span><span id="line-156"> addListener(call(stubs.get(i), callable), (r, e) -> {</span> |
| <span class="source-line-no">157</span><span id="line-157"> // a simple check to skip all the later operations earlier</span> |
| <span class="source-line-no">158</span><span id="line-158"> if (future.isDone()) {</span> |
| <span class="source-line-no">159</span><span id="line-159"> return;</span> |
| <span class="source-line-no">160</span><span id="line-160"> }</span> |
| <span class="source-line-no">161</span><span id="line-161"> if (e == null && !isValidResp.test(r)) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> e = badResponse(debug);</span> |
| <span class="source-line-no">163</span><span id="line-163"> }</span> |
| <span class="source-line-no">164</span><span id="line-164"> if (e != null) {</span> |
| <span class="source-line-no">165</span><span id="line-165"> // make sure when remaining reaches 0 we have all exceptions in the errors queue</span> |
| <span class="source-line-no">166</span><span id="line-166"> errors.add(e);</span> |
| <span class="source-line-no">167</span><span id="line-167"> if (remaining.decrementAndGet() == 0) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> if (endIndexExclusive == stubs.size()) {</span> |
| <span class="source-line-no">169</span><span id="line-169"> // we are done, complete the future with exception</span> |
| <span class="source-line-no">170</span><span id="line-170"> RetriesExhaustedException ex =</span> |
| <span class="source-line-no">171</span><span id="line-171"> new RetriesExhaustedException("masters", stubs.size(), new ArrayList<>(errors));</span> |
| <span class="source-line-no">172</span><span id="line-172"> future.completeExceptionally(new MasterRegistryFetchException(servers, ex));</span> |
| <span class="source-line-no">173</span><span id="line-173"> } else {</span> |
| <span class="source-line-no">174</span><span id="line-174"> groupCall(future, servers, stubs, endIndexExclusive, callable, isValidResp, debug,</span> |
| <span class="source-line-no">175</span><span id="line-175"> errors);</span> |
| <span class="source-line-no">176</span><span id="line-176"> }</span> |
| <span class="source-line-no">177</span><span id="line-177"> }</span> |
| <span class="source-line-no">178</span><span id="line-178"> } else {</span> |
| <span class="source-line-no">179</span><span id="line-179"> // do not need to decrement the counter any more as we have already finished the future.</span> |
| <span class="source-line-no">180</span><span id="line-180"> future.complete(r);</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182"> });</span> |
| <span class="source-line-no">183</span><span id="line-183"> }</span> |
| <span class="source-line-no">184</span><span id="line-184"> }</span> |
| <span class="source-line-no">185</span><span id="line-185"></span> |
| <span class="source-line-no">186</span><span id="line-186"> protected final <T extends Message> CompletableFuture<T> call(Callable<T> callable,</span> |
| <span class="source-line-no">187</span><span id="line-187"> Predicate<T> isValidResp, String debug) {</span> |
| <span class="source-line-no">188</span><span id="line-188"> CompletableFuture<T> future = new CompletableFuture<>();</span> |
| <span class="source-line-no">189</span><span id="line-189"> FutureUtils.addListener(rpcStubHolder.getStubs(), (addr2Stub, error) -> {</span> |
| <span class="source-line-no">190</span><span id="line-190"> if (error != null) {</span> |
| <span class="source-line-no">191</span><span id="line-191"> future.completeExceptionally(error);</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"> Set<ServerName> servers = addr2Stub.keySet();</span> |
| <span class="source-line-no">195</span><span id="line-195"> List<ClientMetaService.Interface> stubs = new ArrayList<>(addr2Stub.values());</span> |
| <span class="source-line-no">196</span><span id="line-196"> Collections.shuffle(stubs, ThreadLocalRandom.current());</span> |
| <span class="source-line-no">197</span><span id="line-197"> groupCall(future, servers, stubs, 0, callable, isValidResp, debug,</span> |
| <span class="source-line-no">198</span><span id="line-198"> new ConcurrentLinkedQueue<>());</span> |
| <span class="source-line-no">199</span><span id="line-199"> });</span> |
| <span class="source-line-no">200</span><span id="line-200"> return future;</span> |
| <span class="source-line-no">201</span><span id="line-201"> }</span> |
| <span class="source-line-no">202</span><span id="line-202"></span> |
| <span class="source-line-no">203</span><span id="line-203"> @RestrictedApi(explanation = "Should only be called in tests", link = "",</span> |
| <span class="source-line-no">204</span><span id="line-204"> allowedOnPath = ".*/src/test/.*")</span> |
| <span class="source-line-no">205</span><span id="line-205"> Set<ServerName> getParsedServers() throws IOException {</span> |
| <span class="source-line-no">206</span><span id="line-206"> return FutureUtils.get(rpcStubHolder.getStubs()).keySet();</span> |
| <span class="source-line-no">207</span><span id="line-207"> }</span> |
| <span class="source-line-no">208</span><span id="line-208"></span> |
| <span class="source-line-no">209</span><span id="line-209"> /**</span> |
| <span class="source-line-no">210</span><span id="line-210"> * Simple helper to transform the result of getMetaRegionLocations() rpc.</span> |
| <span class="source-line-no">211</span><span id="line-211"> */</span> |
| <span class="source-line-no">212</span><span id="line-212"> private static RegionLocations transformMetaRegionLocations(GetMetaRegionLocationsResponse resp) {</span> |
| <span class="source-line-no">213</span><span id="line-213"> List<HRegionLocation> regionLocations = new ArrayList<>();</span> |
| <span class="source-line-no">214</span><span id="line-214"> resp.getMetaLocationsList()</span> |
| <span class="source-line-no">215</span><span id="line-215"> .forEach(location -> regionLocations.add(ProtobufUtil.toRegionLocation(location)));</span> |
| <span class="source-line-no">216</span><span id="line-216"> return new RegionLocations(regionLocations);</span> |
| <span class="source-line-no">217</span><span id="line-217"> }</span> |
| <span class="source-line-no">218</span><span id="line-218"></span> |
| <span class="source-line-no">219</span><span id="line-219"> @Override</span> |
| <span class="source-line-no">220</span><span id="line-220"> public CompletableFuture<RegionLocations> getMetaRegionLocations() {</span> |
| <span class="source-line-no">221</span><span id="line-221"> return tracedFuture(</span> |
| <span class="source-line-no">222</span><span id="line-222"> () -> this</span> |
| <span class="source-line-no">223</span><span id="line-223"> .<GetMetaRegionLocationsResponse> call(</span> |
| <span class="source-line-no">224</span><span id="line-224"> (c, s, d) -> s.getMetaRegionLocations(c,</span> |
| <span class="source-line-no">225</span><span id="line-225"> GetMetaRegionLocationsRequest.getDefaultInstance(), d),</span> |
| <span class="source-line-no">226</span><span id="line-226"> r -> r.getMetaLocationsCount() != 0, "getMetaLocationsCount")</span> |
| <span class="source-line-no">227</span><span id="line-227"> .thenApply(AbstractRpcBasedConnectionRegistry::transformMetaRegionLocations),</span> |
| <span class="source-line-no">228</span><span id="line-228"> getClass().getSimpleName() + ".getMetaRegionLocations");</span> |
| <span class="source-line-no">229</span><span id="line-229"> }</span> |
| <span class="source-line-no">230</span><span id="line-230"></span> |
| <span class="source-line-no">231</span><span id="line-231"> @Override</span> |
| <span class="source-line-no">232</span><span id="line-232"> public CompletableFuture<String> getClusterId() {</span> |
| <span class="source-line-no">233</span><span id="line-233"> return tracedFuture(</span> |
| <span class="source-line-no">234</span><span id="line-234"> () -> this</span> |
| <span class="source-line-no">235</span><span id="line-235"> .<GetClusterIdResponse> call(</span> |
| <span class="source-line-no">236</span><span id="line-236"> (c, s, d) -> s.getClusterId(c, GetClusterIdRequest.getDefaultInstance(), d),</span> |
| <span class="source-line-no">237</span><span id="line-237"> GetClusterIdResponse::hasClusterId, "getClusterId()")</span> |
| <span class="source-line-no">238</span><span id="line-238"> .thenApply(GetClusterIdResponse::getClusterId),</span> |
| <span class="source-line-no">239</span><span id="line-239"> getClass().getSimpleName() + ".getClusterId");</span> |
| <span class="source-line-no">240</span><span id="line-240"> }</span> |
| <span class="source-line-no">241</span><span id="line-241"></span> |
| <span class="source-line-no">242</span><span id="line-242"> @Override</span> |
| <span class="source-line-no">243</span><span id="line-243"> public CompletableFuture<ServerName> getActiveMaster() {</span> |
| <span class="source-line-no">244</span><span id="line-244"> return tracedFuture(</span> |
| <span class="source-line-no">245</span><span id="line-245"> () -> this</span> |
| <span class="source-line-no">246</span><span id="line-246"> .<GetActiveMasterResponse> call(</span> |
| <span class="source-line-no">247</span><span id="line-247"> (c, s, d) -> s.getActiveMaster(c, GetActiveMasterRequest.getDefaultInstance(), d),</span> |
| <span class="source-line-no">248</span><span id="line-248"> GetActiveMasterResponse::hasServerName, "getActiveMaster()")</span> |
| <span class="source-line-no">249</span><span id="line-249"> .thenApply(resp -> ProtobufUtil.toServerName(resp.getServerName())),</span> |
| <span class="source-line-no">250</span><span id="line-250"> getClass().getSimpleName() + ".getActiveMaster");</span> |
| <span class="source-line-no">251</span><span id="line-251"> }</span> |
| <span class="source-line-no">252</span><span id="line-252"></span> |
| <span class="source-line-no">253</span><span id="line-253"> @Override</span> |
| <span class="source-line-no">254</span><span id="line-254"> public void close() {</span> |
| <span class="source-line-no">255</span><span id="line-255"> trace(() -> {</span> |
| <span class="source-line-no">256</span><span id="line-256"> if (registryEndpointRefresher != null) {</span> |
| <span class="source-line-no">257</span><span id="line-257"> registryEndpointRefresher.stop();</span> |
| <span class="source-line-no">258</span><span id="line-258"> }</span> |
| <span class="source-line-no">259</span><span id="line-259"> if (rpcStubHolder != null) {</span> |
| <span class="source-line-no">260</span><span id="line-260"> rpcStubHolder.close();</span> |
| <span class="source-line-no">261</span><span id="line-261"> }</span> |
| <span class="source-line-no">262</span><span id="line-262"> }, getClass().getSimpleName() + ".close");</span> |
| <span class="source-line-no">263</span><span id="line-263"> }</span> |
| <span class="source-line-no">264</span><span id="line-264">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
