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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.HConstants.EMPTY_END_ROW;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.HConstants.EMPTY_START_ROW;</span> |
| <span class="source-line-no">022</span><span id="line-22">import static org.apache.hadoop.hbase.client.ConnectionUtils.createScanResultCache;</span> |
| <span class="source-line-no">023</span><span id="line-23">import static org.apache.hadoop.hbase.client.ConnectionUtils.getLocateType;</span> |
| <span class="source-line-no">024</span><span id="line-24">import static org.apache.hadoop.hbase.client.ConnectionUtils.incRPCCallsMetrics;</span> |
| <span class="source-line-no">025</span><span id="line-25">import static org.apache.hadoop.hbase.client.ConnectionUtils.incRPCRetriesMetrics;</span> |
| <span class="source-line-no">026</span><span id="line-26">import static org.apache.hadoop.hbase.client.ConnectionUtils.incRegionCountMetrics;</span> |
| <span class="source-line-no">027</span><span id="line-27">import static org.apache.hadoop.hbase.client.ConnectionUtils.isRemote;</span> |
| <span class="source-line-no">028</span><span id="line-28">import static org.apache.hadoop.hbase.client.ConnectionUtils.timelineConsistentRead;</span> |
| <span class="source-line-no">029</span><span id="line-29">import static org.apache.hadoop.hbase.util.FutureUtils.addListener;</span> |
| <span class="source-line-no">030</span><span id="line-30"></span> |
| <span class="source-line-no">031</span><span id="line-31">import io.opentelemetry.api.trace.Span;</span> |
| <span class="source-line-no">032</span><span id="line-32">import io.opentelemetry.api.trace.StatusCode;</span> |
| <span class="source-line-no">033</span><span id="line-33">import io.opentelemetry.context.Scope;</span> |
| <span class="source-line-no">034</span><span id="line-34">import java.io.IOException;</span> |
| <span class="source-line-no">035</span><span id="line-35">import java.util.Map;</span> |
| <span class="source-line-no">036</span><span id="line-36">import java.util.concurrent.CompletableFuture;</span> |
| <span class="source-line-no">037</span><span id="line-37">import java.util.concurrent.TimeUnit;</span> |
| <span class="source-line-no">038</span><span id="line-38">import java.util.concurrent.atomic.AtomicInteger;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.hadoop.hbase.HRegionLocation;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.apache.hadoop.hbase.TableName;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.apache.hadoop.hbase.client.metrics.ScanMetrics;</span> |
| <span class="source-line-no">042</span><span id="line-42">import org.apache.hadoop.hbase.client.trace.TableOperationSpanBuilder;</span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hadoop.hbase.ipc.HBaseRpcController;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hadoop.hbase.trace.TraceUtil;</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.io.netty.util.Timer;</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.hadoop.hbase.shaded.protobuf.RequestConverter;</span> |
| <span class="source-line-no">050</span><span id="line-50">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService;</span> |
| <span class="source-line-no">051</span><span id="line-51">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService.Interface;</span> |
| <span class="source-line-no">052</span><span id="line-52">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest;</span> |
| <span class="source-line-no">053</span><span id="line-53">import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanResponse;</span> |
| <span class="source-line-no">054</span><span id="line-54"></span> |
| <span class="source-line-no">055</span><span id="line-55">/**</span> |
| <span class="source-line-no">056</span><span id="line-56"> * The asynchronous client scanner implementation.</span> |
| <span class="source-line-no">057</span><span id="line-57"> * <p></span> |
| <span class="source-line-no">058</span><span id="line-58"> * Here we will call OpenScanner first and use the returned scannerId to create a</span> |
| <span class="source-line-no">059</span><span id="line-59"> * {@link AsyncScanSingleRegionRpcRetryingCaller} to do the real scan operation. The return value of</span> |
| <span class="source-line-no">060</span><span id="line-60"> * {@link AsyncScanSingleRegionRpcRetryingCaller} will tell us whether open a new scanner or finish</span> |
| <span class="source-line-no">061</span><span id="line-61"> * scan.</span> |
| <span class="source-line-no">062</span><span id="line-62"> */</span> |
| <span class="source-line-no">063</span><span id="line-63">@InterfaceAudience.Private</span> |
| <span class="source-line-no">064</span><span id="line-64">class AsyncClientScanner {</span> |
| <span class="source-line-no">065</span><span id="line-65"></span> |
| <span class="source-line-no">066</span><span id="line-66"> // We will use this scan object during the whole scan operation. The</span> |
| <span class="source-line-no">067</span><span id="line-67"> // AsyncScanSingleRegionRpcRetryingCaller will modify this scan object directly.</span> |
| <span class="source-line-no">068</span><span id="line-68"> private final Scan scan;</span> |
| <span class="source-line-no">069</span><span id="line-69"></span> |
| <span class="source-line-no">070</span><span id="line-70"> private final ScanMetrics scanMetrics;</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> private final AdvancedScanResultConsumer consumer;</span> |
| <span class="source-line-no">073</span><span id="line-73"></span> |
| <span class="source-line-no">074</span><span id="line-74"> private final TableName tableName;</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> private final AsyncConnectionImpl conn;</span> |
| <span class="source-line-no">077</span><span id="line-77"></span> |
| <span class="source-line-no">078</span><span id="line-78"> private final Timer retryTimer;</span> |
| <span class="source-line-no">079</span><span id="line-79"></span> |
| <span class="source-line-no">080</span><span id="line-80"> private final long pauseNs;</span> |
| <span class="source-line-no">081</span><span id="line-81"></span> |
| <span class="source-line-no">082</span><span id="line-82"> private final long pauseNsForServerOverloaded;</span> |
| <span class="source-line-no">083</span><span id="line-83"></span> |
| <span class="source-line-no">084</span><span id="line-84"> private final int maxAttempts;</span> |
| <span class="source-line-no">085</span><span id="line-85"></span> |
| <span class="source-line-no">086</span><span id="line-86"> private final long scanTimeoutNs;</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> private final long rpcTimeoutNs;</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> private final int startLogErrorsCnt;</span> |
| <span class="source-line-no">091</span><span id="line-91"></span> |
| <span class="source-line-no">092</span><span id="line-92"> private final ScanResultCache resultCache;</span> |
| <span class="source-line-no">093</span><span id="line-93"></span> |
| <span class="source-line-no">094</span><span id="line-94"> private final Span span;</span> |
| <span class="source-line-no">095</span><span id="line-95"></span> |
| <span class="source-line-no">096</span><span id="line-96"> private final Map<String, byte[]> requestAttributes;</span> |
| <span class="source-line-no">097</span><span id="line-97"></span> |
| <span class="source-line-no">098</span><span id="line-98"> public AsyncClientScanner(Scan scan, AdvancedScanResultConsumer consumer, TableName tableName,</span> |
| <span class="source-line-no">099</span><span id="line-99"> AsyncConnectionImpl conn, Timer retryTimer, long pauseNs, long pauseNsForServerOverloaded,</span> |
| <span class="source-line-no">100</span><span id="line-100"> int maxAttempts, long scanTimeoutNs, long rpcTimeoutNs, int startLogErrorsCnt,</span> |
| <span class="source-line-no">101</span><span id="line-101"> Map<String, byte[]> requestAttributes) {</span> |
| <span class="source-line-no">102</span><span id="line-102"> if (scan.getStartRow() == null) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> scan.withStartRow(EMPTY_START_ROW, scan.includeStartRow());</span> |
| <span class="source-line-no">104</span><span id="line-104"> }</span> |
| <span class="source-line-no">105</span><span id="line-105"> if (scan.getStopRow() == null) {</span> |
| <span class="source-line-no">106</span><span id="line-106"> scan.withStopRow(EMPTY_END_ROW, scan.includeStopRow());</span> |
| <span class="source-line-no">107</span><span id="line-107"> }</span> |
| <span class="source-line-no">108</span><span id="line-108"> this.scan = scan;</span> |
| <span class="source-line-no">109</span><span id="line-109"> this.consumer = consumer;</span> |
| <span class="source-line-no">110</span><span id="line-110"> this.tableName = tableName;</span> |
| <span class="source-line-no">111</span><span id="line-111"> this.conn = conn;</span> |
| <span class="source-line-no">112</span><span id="line-112"> this.retryTimer = retryTimer;</span> |
| <span class="source-line-no">113</span><span id="line-113"> this.pauseNs = pauseNs;</span> |
| <span class="source-line-no">114</span><span id="line-114"> this.pauseNsForServerOverloaded = pauseNsForServerOverloaded;</span> |
| <span class="source-line-no">115</span><span id="line-115"> this.maxAttempts = maxAttempts;</span> |
| <span class="source-line-no">116</span><span id="line-116"> this.scanTimeoutNs = scanTimeoutNs;</span> |
| <span class="source-line-no">117</span><span id="line-117"> this.rpcTimeoutNs = rpcTimeoutNs;</span> |
| <span class="source-line-no">118</span><span id="line-118"> this.startLogErrorsCnt = startLogErrorsCnt;</span> |
| <span class="source-line-no">119</span><span id="line-119"> this.resultCache = createScanResultCache(scan);</span> |
| <span class="source-line-no">120</span><span id="line-120"> this.requestAttributes = requestAttributes;</span> |
| <span class="source-line-no">121</span><span id="line-121"> if (scan.isScanMetricsEnabled()) {</span> |
| <span class="source-line-no">122</span><span id="line-122"> this.scanMetrics = new ScanMetrics();</span> |
| <span class="source-line-no">123</span><span id="line-123"> consumer.onScanMetricsCreated(scanMetrics);</span> |
| <span class="source-line-no">124</span><span id="line-124"> } else {</span> |
| <span class="source-line-no">125</span><span id="line-125"> this.scanMetrics = null;</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</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"> * Assumes that the `start()` method is called immediately after construction. If this is no</span> |
| <span class="source-line-no">130</span><span id="line-130"> * longer the case, for tracing correctness, we should move the start of the span into the</span> |
| <span class="source-line-no">131</span><span id="line-131"> * `start()` method. The cost of doing so would be making access to the `span` safe for</span> |
| <span class="source-line-no">132</span><span id="line-132"> * concurrent threads.</span> |
| <span class="source-line-no">133</span><span id="line-133"> */</span> |
| <span class="source-line-no">134</span><span id="line-134"> span = new TableOperationSpanBuilder(conn).setTableName(tableName).setOperation(scan).build();</span> |
| <span class="source-line-no">135</span><span id="line-135"> if (consumer instanceof AsyncTableResultScanner) {</span> |
| <span class="source-line-no">136</span><span id="line-136"> AsyncTableResultScanner scanner = (AsyncTableResultScanner) consumer;</span> |
| <span class="source-line-no">137</span><span id="line-137"> scanner.setSpan(span);</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"></span> |
| <span class="source-line-no">141</span><span id="line-141"> private static final class OpenScannerResponse {</span> |
| <span class="source-line-no">142</span><span id="line-142"></span> |
| <span class="source-line-no">143</span><span id="line-143"> public final HRegionLocation loc;</span> |
| <span class="source-line-no">144</span><span id="line-144"></span> |
| <span class="source-line-no">145</span><span id="line-145"> public final boolean isRegionServerRemote;</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> public final ClientService.Interface stub;</span> |
| <span class="source-line-no">148</span><span id="line-148"></span> |
| <span class="source-line-no">149</span><span id="line-149"> public final HBaseRpcController controller;</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> public final ScanResponse resp;</span> |
| <span class="source-line-no">152</span><span id="line-152"></span> |
| <span class="source-line-no">153</span><span id="line-153"> public OpenScannerResponse(HRegionLocation loc, boolean isRegionServerRemote, Interface stub,</span> |
| <span class="source-line-no">154</span><span id="line-154"> HBaseRpcController controller, ScanResponse resp) {</span> |
| <span class="source-line-no">155</span><span id="line-155"> this.loc = loc;</span> |
| <span class="source-line-no">156</span><span id="line-156"> this.isRegionServerRemote = isRegionServerRemote;</span> |
| <span class="source-line-no">157</span><span id="line-157"> this.stub = stub;</span> |
| <span class="source-line-no">158</span><span id="line-158"> this.controller = controller;</span> |
| <span class="source-line-no">159</span><span id="line-159"> this.resp = resp;</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 final AtomicInteger openScannerTries = new AtomicInteger();</span> |
| <span class="source-line-no">164</span><span id="line-164"></span> |
| <span class="source-line-no">165</span><span id="line-165"> private CompletableFuture<OpenScannerResponse> callOpenScanner(HBaseRpcController controller,</span> |
| <span class="source-line-no">166</span><span id="line-166"> HRegionLocation loc, ClientService.Interface stub) {</span> |
| <span class="source-line-no">167</span><span id="line-167"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">168</span><span id="line-168"> boolean isRegionServerRemote = isRemote(loc.getHostname());</span> |
| <span class="source-line-no">169</span><span id="line-169"> incRPCCallsMetrics(scanMetrics, isRegionServerRemote);</span> |
| <span class="source-line-no">170</span><span id="line-170"> if (openScannerTries.getAndIncrement() > 1) {</span> |
| <span class="source-line-no">171</span><span id="line-171"> incRPCRetriesMetrics(scanMetrics, isRegionServerRemote);</span> |
| <span class="source-line-no">172</span><span id="line-172"> }</span> |
| <span class="source-line-no">173</span><span id="line-173"> CompletableFuture<OpenScannerResponse> future = new CompletableFuture<>();</span> |
| <span class="source-line-no">174</span><span id="line-174"> try {</span> |
| <span class="source-line-no">175</span><span id="line-175"> ScanRequest request = RequestConverter.buildScanRequest(loc.getRegion().getRegionName(),</span> |
| <span class="source-line-no">176</span><span id="line-176"> scan, scan.getCaching(), false);</span> |
| <span class="source-line-no">177</span><span id="line-177"> stub.scan(controller, request, resp -> {</span> |
| <span class="source-line-no">178</span><span id="line-178"> try (Scope ignored1 = span.makeCurrent()) {</span> |
| <span class="source-line-no">179</span><span id="line-179"> if (controller.failed()) {</span> |
| <span class="source-line-no">180</span><span id="line-180"> final IOException e = controller.getFailed();</span> |
| <span class="source-line-no">181</span><span id="line-181"> future.completeExceptionally(e);</span> |
| <span class="source-line-no">182</span><span id="line-182"> TraceUtil.setError(span, e);</span> |
| <span class="source-line-no">183</span><span id="line-183"> span.end();</span> |
| <span class="source-line-no">184</span><span id="line-184"> return;</span> |
| <span class="source-line-no">185</span><span id="line-185"> }</span> |
| <span class="source-line-no">186</span><span id="line-186"> future</span> |
| <span class="source-line-no">187</span><span id="line-187"> .complete(new OpenScannerResponse(loc, isRegionServerRemote, stub, controller, resp));</span> |
| <span class="source-line-no">188</span><span id="line-188"> }</span> |
| <span class="source-line-no">189</span><span id="line-189"> });</span> |
| <span class="source-line-no">190</span><span id="line-190"> } catch (IOException e) {</span> |
| <span class="source-line-no">191</span><span id="line-191"> // span is closed by listener attached to the Future in `openScanner()`</span> |
| <span class="source-line-no">192</span><span id="line-192"> future.completeExceptionally(e);</span> |
| <span class="source-line-no">193</span><span id="line-193"> }</span> |
| <span class="source-line-no">194</span><span id="line-194"> return future;</span> |
| <span class="source-line-no">195</span><span id="line-195"> }</span> |
| <span class="source-line-no">196</span><span id="line-196"> }</span> |
| <span class="source-line-no">197</span><span id="line-197"></span> |
| <span class="source-line-no">198</span><span id="line-198"> private void startScan(OpenScannerResponse resp) {</span> |
| <span class="source-line-no">199</span><span id="line-199"> addListener(</span> |
| <span class="source-line-no">200</span><span id="line-200"> conn.callerFactory.scanSingleRegion().id(resp.resp.getScannerId()).location(resp.loc)</span> |
| <span class="source-line-no">201</span><span id="line-201"> .remote(resp.isRegionServerRemote)</span> |
| <span class="source-line-no">202</span><span id="line-202"> .scannerLeaseTimeoutPeriod(resp.resp.getTtl(), TimeUnit.MILLISECONDS).stub(resp.stub)</span> |
| <span class="source-line-no">203</span><span id="line-203"> .setScan(scan).metrics(scanMetrics).consumer(consumer).resultCache(resultCache)</span> |
| <span class="source-line-no">204</span><span id="line-204"> .rpcTimeout(rpcTimeoutNs, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">205</span><span id="line-205"> .scanTimeout(scanTimeoutNs, TimeUnit.NANOSECONDS).pause(pauseNs, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">206</span><span id="line-206"> .pauseForServerOverloaded(pauseNsForServerOverloaded, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">207</span><span id="line-207"> .maxAttempts(maxAttempts).startLogErrorsCnt(startLogErrorsCnt)</span> |
| <span class="source-line-no">208</span><span id="line-208"> .setRequestAttributes(requestAttributes).start(resp.controller, resp.resp),</span> |
| <span class="source-line-no">209</span><span id="line-209"> (hasMore, error) -> {</span> |
| <span class="source-line-no">210</span><span id="line-210"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">211</span><span id="line-211"> if (error != null) {</span> |
| <span class="source-line-no">212</span><span id="line-212"> try {</span> |
| <span class="source-line-no">213</span><span id="line-213"> consumer.onError(error);</span> |
| <span class="source-line-no">214</span><span id="line-214"> return;</span> |
| <span class="source-line-no">215</span><span id="line-215"> } finally {</span> |
| <span class="source-line-no">216</span><span id="line-216"> TraceUtil.setError(span, error);</span> |
| <span class="source-line-no">217</span><span id="line-217"> span.end();</span> |
| <span class="source-line-no">218</span><span id="line-218"> }</span> |
| <span class="source-line-no">219</span><span id="line-219"> }</span> |
| <span class="source-line-no">220</span><span id="line-220"> if (hasMore) {</span> |
| <span class="source-line-no">221</span><span id="line-221"> openScanner();</span> |
| <span class="source-line-no">222</span><span id="line-222"> } else {</span> |
| <span class="source-line-no">223</span><span id="line-223"> try {</span> |
| <span class="source-line-no">224</span><span id="line-224"> consumer.onComplete();</span> |
| <span class="source-line-no">225</span><span id="line-225"> } finally {</span> |
| <span class="source-line-no">226</span><span id="line-226"> span.setStatus(StatusCode.OK);</span> |
| <span class="source-line-no">227</span><span id="line-227"> span.end();</span> |
| <span class="source-line-no">228</span><span id="line-228"> }</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"> });</span> |
| <span class="source-line-no">232</span><span id="line-232"> }</span> |
| <span class="source-line-no">233</span><span id="line-233"></span> |
| <span class="source-line-no">234</span><span id="line-234"> private CompletableFuture<OpenScannerResponse> openScanner(int replicaId) {</span> |
| <span class="source-line-no">235</span><span id="line-235"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">236</span><span id="line-236"> return conn.callerFactory.<OpenScannerResponse> single().table(tableName)</span> |
| <span class="source-line-no">237</span><span id="line-237"> .row(scan.getStartRow()).replicaId(replicaId).locateType(getLocateType(scan))</span> |
| <span class="source-line-no">238</span><span id="line-238"> .priority(scan.getPriority()).rpcTimeout(rpcTimeoutNs, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">239</span><span id="line-239"> .operationTimeout(scanTimeoutNs, TimeUnit.NANOSECONDS).pause(pauseNs, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">240</span><span id="line-240"> .pauseForServerOverloaded(pauseNsForServerOverloaded, TimeUnit.NANOSECONDS)</span> |
| <span class="source-line-no">241</span><span id="line-241"> .maxAttempts(maxAttempts).startLogErrorsCnt(startLogErrorsCnt)</span> |
| <span class="source-line-no">242</span><span id="line-242"> .setRequestAttributes(requestAttributes).action(this::callOpenScanner).call();</span> |
| <span class="source-line-no">243</span><span id="line-243"> }</span> |
| <span class="source-line-no">244</span><span id="line-244"> }</span> |
| <span class="source-line-no">245</span><span id="line-245"></span> |
| <span class="source-line-no">246</span><span id="line-246"> private long getPrimaryTimeoutNs() {</span> |
| <span class="source-line-no">247</span><span id="line-247"> return TableName.isMetaTableName(tableName)</span> |
| <span class="source-line-no">248</span><span id="line-248"> ? conn.connConf.getPrimaryMetaScanTimeoutNs()</span> |
| <span class="source-line-no">249</span><span id="line-249"> : conn.connConf.getPrimaryScanTimeoutNs();</span> |
| <span class="source-line-no">250</span><span id="line-250"> }</span> |
| <span class="source-line-no">251</span><span id="line-251"></span> |
| <span class="source-line-no">252</span><span id="line-252"> private void openScanner() {</span> |
| <span class="source-line-no">253</span><span id="line-253"> incRegionCountMetrics(scanMetrics);</span> |
| <span class="source-line-no">254</span><span id="line-254"> openScannerTries.set(1);</span> |
| <span class="source-line-no">255</span><span id="line-255"> addListener(timelineConsistentRead(conn.getLocator(), tableName, scan, scan.getStartRow(),</span> |
| <span class="source-line-no">256</span><span id="line-256"> getLocateType(scan), this::openScanner, rpcTimeoutNs, getPrimaryTimeoutNs(), retryTimer,</span> |
| <span class="source-line-no">257</span><span id="line-257"> conn.getConnectionMetrics()), (resp, error) -> {</span> |
| <span class="source-line-no">258</span><span id="line-258"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">259</span><span id="line-259"> if (error != null) {</span> |
| <span class="source-line-no">260</span><span id="line-260"> try {</span> |
| <span class="source-line-no">261</span><span id="line-261"> consumer.onError(error);</span> |
| <span class="source-line-no">262</span><span id="line-262"> return;</span> |
| <span class="source-line-no">263</span><span id="line-263"> } finally {</span> |
| <span class="source-line-no">264</span><span id="line-264"> TraceUtil.setError(span, error);</span> |
| <span class="source-line-no">265</span><span id="line-265"> span.end();</span> |
| <span class="source-line-no">266</span><span id="line-266"> }</span> |
| <span class="source-line-no">267</span><span id="line-267"> }</span> |
| <span class="source-line-no">268</span><span id="line-268"> startScan(resp);</span> |
| <span class="source-line-no">269</span><span id="line-269"> }</span> |
| <span class="source-line-no">270</span><span id="line-270"> });</span> |
| <span class="source-line-no">271</span><span id="line-271"> }</span> |
| <span class="source-line-no">272</span><span id="line-272"></span> |
| <span class="source-line-no">273</span><span id="line-273"> public void start() {</span> |
| <span class="source-line-no">274</span><span id="line-274"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">275</span><span id="line-275"> openScanner();</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> |
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| </pre> |
| </div> |
| </main> |
| </body> |
| </html> |
