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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.regionserver;</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 io.opentelemetry.api.trace.Span;</span> |
| <span class="source-line-no">021</span><span id="line-21">import io.opentelemetry.api.trace.StatusCode;</span> |
| <span class="source-line-no">022</span><span id="line-22">import io.opentelemetry.context.Scope;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.hbase.HConstants;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.hbase.LocalHBaseCluster;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.hbase.trace.TraceUtil;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.util.ServerCommandLine;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.slf4j.Logger;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">031</span><span id="line-31"></span> |
| <span class="source-line-no">032</span><span id="line-32">/**</span> |
| <span class="source-line-no">033</span><span id="line-33"> * Class responsible for parsing the command line and starting the RegionServer.</span> |
| <span class="source-line-no">034</span><span id="line-34"> */</span> |
| <span class="source-line-no">035</span><span id="line-35">@InterfaceAudience.Private</span> |
| <span class="source-line-no">036</span><span id="line-36">public class HRegionServerCommandLine extends ServerCommandLine {</span> |
| <span class="source-line-no">037</span><span id="line-37"> private static final Logger LOG = LoggerFactory.getLogger(HRegionServerCommandLine.class);</span> |
| <span class="source-line-no">038</span><span id="line-38"></span> |
| <span class="source-line-no">039</span><span id="line-39"> private final Class<? extends HRegionServer> regionServerClass;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41"> private static final String USAGE = "Usage: HRegionServer [-D conf.param=value] start";</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> public HRegionServerCommandLine(Class<? extends HRegionServer> clazz) {</span> |
| <span class="source-line-no">044</span><span id="line-44"> this.regionServerClass = clazz;</span> |
| <span class="source-line-no">045</span><span id="line-45"> }</span> |
| <span class="source-line-no">046</span><span id="line-46"></span> |
| <span class="source-line-no">047</span><span id="line-47"> @Override</span> |
| <span class="source-line-no">048</span><span id="line-48"> protected String getUsage() {</span> |
| <span class="source-line-no">049</span><span id="line-49"> return USAGE;</span> |
| <span class="source-line-no">050</span><span id="line-50"> }</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> private int start() throws Exception {</span> |
| <span class="source-line-no">053</span><span id="line-53"> Configuration conf = getConf();</span> |
| <span class="source-line-no">054</span><span id="line-54"> final Span span = TraceUtil.createSpan("HRegionServerCommandLine.start");</span> |
| <span class="source-line-no">055</span><span id="line-55"> try (Scope ignored = span.makeCurrent()) {</span> |
| <span class="source-line-no">056</span><span id="line-56"> // If 'local', don't start a region server here. Defer to</span> |
| <span class="source-line-no">057</span><span id="line-57"> // LocalHBaseCluster. It manages 'local' clusters.</span> |
| <span class="source-line-no">058</span><span id="line-58"> if (LocalHBaseCluster.isLocal(conf)) {</span> |
| <span class="source-line-no">059</span><span id="line-59"> LOG.warn("Not starting a distinct region server because " + HConstants.CLUSTER_DISTRIBUTED</span> |
| <span class="source-line-no">060</span><span id="line-60"> + " is false");</span> |
| <span class="source-line-no">061</span><span id="line-61"> } else {</span> |
| <span class="source-line-no">062</span><span id="line-62"> logProcessInfo(getConf());</span> |
| <span class="source-line-no">063</span><span id="line-63"> HRegionServer hrs = HRegionServer.constructRegionServer(regionServerClass, conf);</span> |
| <span class="source-line-no">064</span><span id="line-64"> hrs.start();</span> |
| <span class="source-line-no">065</span><span id="line-65"> hrs.join();</span> |
| <span class="source-line-no">066</span><span id="line-66"> if (hrs.isAborted()) {</span> |
| <span class="source-line-no">067</span><span id="line-67"> throw new RuntimeException("HRegionServer Aborted");</span> |
| <span class="source-line-no">068</span><span id="line-68"> }</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</span> |
| <span class="source-line-no">070</span><span id="line-70"> span.setStatus(StatusCode.OK);</span> |
| <span class="source-line-no">071</span><span id="line-71"> } catch (Throwable t) {</span> |
| <span class="source-line-no">072</span><span id="line-72"> TraceUtil.setError(span, t);</span> |
| <span class="source-line-no">073</span><span id="line-73"> LOG.error("Region server exiting", t);</span> |
| <span class="source-line-no">074</span><span id="line-74"> return 1;</span> |
| <span class="source-line-no">075</span><span id="line-75"> } finally {</span> |
| <span class="source-line-no">076</span><span id="line-76"> span.end();</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"> return 0;</span> |
| <span class="source-line-no">079</span><span id="line-79"> }</span> |
| <span class="source-line-no">080</span><span id="line-80"></span> |
| <span class="source-line-no">081</span><span id="line-81"> @Override</span> |
| <span class="source-line-no">082</span><span id="line-82"> public int run(String args[]) throws Exception {</span> |
| <span class="source-line-no">083</span><span id="line-83"> if (args.length != 1) {</span> |
| <span class="source-line-no">084</span><span id="line-84"> usage(null);</span> |
| <span class="source-line-no">085</span><span id="line-85"> return 1;</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> String cmd = args[0];</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> if ("start".equals(cmd)) {</span> |
| <span class="source-line-no">091</span><span id="line-91"> return start();</span> |
| <span class="source-line-no">092</span><span id="line-92"> } else if ("stop".equals(cmd)) {</span> |
| <span class="source-line-no">093</span><span id="line-93"> System.err.println("To shutdown the regionserver run "</span> |
| <span class="source-line-no">094</span><span id="line-94"> + "hbase-daemon.sh stop regionserver or send a kill signal to " + "the regionserver pid");</span> |
| <span class="source-line-no">095</span><span id="line-95"> return 1;</span> |
| <span class="source-line-no">096</span><span id="line-96"> } else {</span> |
| <span class="source-line-no">097</span><span id="line-97"> usage("Unknown command: " + args[0]);</span> |
| <span class="source-line-no">098</span><span id="line-98"> return 1;</span> |
| <span class="source-line-no">099</span><span id="line-99"> }</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101">}</span> |
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| </pre> |
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