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21 package org.apache.hadoop.hbase.rest;
22
23 import org.apache.commons.cli.CommandLine;
24 import org.apache.commons.cli.HelpFormatter;
25 import org.apache.commons.cli.Options;
26 import org.apache.commons.cli.PosixParser;
27 import org.apache.commons.cli.ParseException;
28
29 import org.apache.commons.logging.Log;
30 import org.apache.commons.logging.LogFactory;
31 import org.apache.hadoop.conf.Configuration;
32 import org.apache.hadoop.hbase.HBaseConfiguration;
33 import org.apache.hadoop.hbase.rest.filter.GzipFilter;
34 import org.apache.hadoop.hbase.security.User;
35 import org.apache.hadoop.hbase.util.InfoServer;
36 import org.apache.hadoop.hbase.util.Strings;
37 import org.apache.hadoop.hbase.util.VersionInfo;
38 import org.apache.hadoop.net.DNS;
39
40 import java.util.List;
41 import java.util.ArrayList;
42 import java.util.Map;
43 import java.util.Map.Entry;
44
45 import org.mortbay.jetty.Connector;
46 import org.mortbay.jetty.Server;
47 import org.mortbay.jetty.nio.SelectChannelConnector;
48 import org.mortbay.jetty.servlet.Context;
49 import org.mortbay.jetty.servlet.ServletHolder;
50 import org.mortbay.thread.QueuedThreadPool;
51
52 import com.sun.jersey.api.json.JSONConfiguration;
53 import com.sun.jersey.spi.container.servlet.ServletContainer;
54
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61
62
63
64 public class Main implements Constants {
65
66 private static void printUsageAndExit(Options options, int exitCode) {
67 HelpFormatter formatter = new HelpFormatter();
68 formatter.printHelp("bin/hbase rest start", "", options,
69 "\nTo run the REST server as a daemon, execute " +
70 "bin/hbase-daemon.sh start|stop rest [--infoport <port>] [-p <port>] [-ro]\n", true);
71 System.exit(exitCode);
72 }
73
74
75
76
77
78
79 public static void main(String[] args) throws Exception {
80 Log LOG = LogFactory.getLog("RESTServer");
81
82 VersionInfo.logVersion();
83 Configuration conf = HBaseConfiguration.create();
84
85 if (User.isSecurityEnabled() && User.isHBaseSecurityEnabled(conf)) {
86 String machineName = Strings.domainNamePointerToHostName(
87 DNS.getDefaultHost(conf.get("hbase.rest.dns.interface", "default"),
88 conf.get("hbase.rest.dns.nameserver", "default")));
89 User.login(conf, "hbase.rest.keytab.file", "hbase.rest.kerberos.principal",
90 machineName);
91 }
92
93 RESTServlet servlet = RESTServlet.getInstance(conf);
94
95 Options options = new Options();
96 options.addOption("p", "port", true, "Port to bind to [default: 8080]");
97 options.addOption("ro", "readonly", false, "Respond only to GET HTTP " +
98 "method requests [default: false]");
99 options.addOption(null, "infoport", true, "Port for web UI");
100
101 CommandLine commandLine = null;
102 try {
103 commandLine = new PosixParser().parse(options, args);
104 } catch (ParseException e) {
105 LOG.error("Could not parse: ", e);
106 printUsageAndExit(options, -1);
107 }
108
109
110 if (commandLine != null && commandLine.hasOption("port")) {
111 String val = commandLine.getOptionValue("port");
112 servlet.getConfiguration()
113 .setInt("hbase.rest.port", Integer.valueOf(val));
114 LOG.debug("port set to " + val);
115 }
116
117
118 if (commandLine != null && commandLine.hasOption("readonly")) {
119 servlet.getConfiguration().setBoolean("hbase.rest.readonly", true);
120 LOG.debug("readonly set to true");
121 }
122
123
124 if (commandLine != null && commandLine.hasOption("infoport")) {
125 String val = commandLine.getOptionValue("infoport");
126 servlet.getConfiguration()
127 .setInt("hbase.rest.info.port", Integer.valueOf(val));
128 LOG.debug("Web UI port set to " + val);
129 }
130
131 @SuppressWarnings("unchecked")
132 List<String> remainingArgs = commandLine != null ?
133 commandLine.getArgList() : new ArrayList<String>();
134 if (remainingArgs.size() != 1) {
135 printUsageAndExit(options, 1);
136 }
137
138 String command = remainingArgs.get(0);
139 if ("start".equals(command)) {
140
141 } else if ("stop".equals(command)) {
142 System.exit(1);
143 } else {
144 printUsageAndExit(options, 1);
145 }
146
147
148 ServletHolder sh = new ServletHolder(ServletContainer.class);
149 sh.setInitParameter(
150 "com.sun.jersey.config.property.resourceConfigClass",
151 ResourceConfig.class.getCanonicalName());
152 sh.setInitParameter("com.sun.jersey.config.property.packages",
153 "jetty");
154 ServletHolder shPojoMap = new ServletHolder(ServletContainer.class);
155 @SuppressWarnings("unchecked")
156 Map<String, String> shInitMap = sh.getInitParameters();
157 for (Entry<String, String> e : shInitMap.entrySet()) {
158 shPojoMap.setInitParameter(e.getKey(), e.getValue());
159 }
160 shPojoMap.setInitParameter(JSONConfiguration.FEATURE_POJO_MAPPING, "true");
161
162
163
164 Server server = new Server();
165
166 Connector connector = new SelectChannelConnector();
167 connector.setPort(servlet.getConfiguration().getInt("hbase.rest.port", 8080));
168 connector.setHost(servlet.getConfiguration().get("hbase.rest.host", "0.0.0.0"));
169
170 server.addConnector(connector);
171
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175
176
177 int maxThreads = servlet.getConfiguration().getInt("hbase.rest.threads.max", 100);
178 int minThreads = servlet.getConfiguration().getInt("hbase.rest.threads.min", 2);
179 QueuedThreadPool threadPool = new QueuedThreadPool(maxThreads);
180 threadPool.setMinThreads(minThreads);
181 server.setThreadPool(threadPool);
182
183 server.setSendServerVersion(false);
184 server.setSendDateHeader(false);
185 server.setStopAtShutdown(true);
186
187
188 Context context = new Context(server, "/", Context.SESSIONS);
189 context.addServlet(shPojoMap, "/status/cluster");
190 context.addServlet(sh, "/*");
191 context.addFilter(GzipFilter.class, "/*", 0);
192
193
194 int port = conf.getInt("hbase.rest.info.port", 8085);
195 if (port >= 0) {
196 conf.setLong("startcode", System.currentTimeMillis());
197 String a = conf.get("hbase.rest.info.bindAddress", "0.0.0.0");
198 InfoServer infoServer = new InfoServer("rest", a, port, false, conf);
199 infoServer.setAttribute("hbase.conf", conf);
200 infoServer.start();
201 }
202
203
204 server.start();
205 server.join();
206 }
207 }