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19 package org.apache.hadoop.hbase.rest;
20
21 import java.util.ArrayList;
22 import java.util.List;
23 import java.util.Map;
24 import java.util.Map.Entry;
25
26 import org.apache.commons.cli.CommandLine;
27 import org.apache.commons.cli.HelpFormatter;
28 import org.apache.commons.cli.Options;
29 import org.apache.commons.cli.ParseException;
30 import org.apache.commons.cli.PosixParser;
31 import org.apache.commons.lang.ArrayUtils;
32 import org.apache.commons.logging.Log;
33 import org.apache.commons.logging.LogFactory;
34 import org.apache.hadoop.classification.InterfaceAudience;
35 import org.apache.hadoop.conf.Configuration;
36 import org.apache.hadoop.hbase.HBaseConfiguration;
37 import org.apache.hadoop.hbase.rest.filter.AuthFilter;
38 import org.apache.hadoop.hbase.security.UserProvider;
39 import org.apache.hadoop.hbase.util.HttpServerUtil;
40 import org.apache.hadoop.hbase.util.InfoServer;
41 import org.apache.hadoop.hbase.util.Strings;
42 import org.apache.hadoop.hbase.util.VersionInfo;
43 import org.apache.hadoop.net.DNS;
44 import org.apache.hadoop.security.UserGroupInformation;
45 import org.mortbay.jetty.Connector;
46 import org.mortbay.jetty.Server;
47 import org.mortbay.jetty.nio.SelectChannelConnector;
48 import org.mortbay.jetty.security.SslSelectChannelConnector;
49 import org.mortbay.jetty.servlet.Context;
50 import org.mortbay.jetty.servlet.FilterHolder;
51 import org.mortbay.jetty.servlet.ServletHolder;
52 import org.mortbay.thread.QueuedThreadPool;
53
54 import com.google.common.base.Preconditions;
55 import com.sun.jersey.api.json.JSONConfiguration;
56 import com.sun.jersey.spi.container.servlet.ServletContainer;
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66
67 @InterfaceAudience.Private
68 public class RESTServer implements Constants {
69
70 private static void printUsageAndExit(Options options, int exitCode) {
71 HelpFormatter formatter = new HelpFormatter();
72 formatter.printHelp("bin/hbase rest start", "", options,
73 "\nTo run the REST server as a daemon, execute " +
74 "bin/hbase-daemon.sh start|stop rest [--infoport <port>] [-p <port>] [-ro]\n", true);
75 System.exit(exitCode);
76 }
77
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81
82
83 public static void main(String[] args) throws Exception {
84 Log LOG = LogFactory.getLog("RESTServer");
85
86 VersionInfo.logVersion();
87 FilterHolder authFilter = null;
88 Configuration conf = HBaseConfiguration.create();
89 Class<? extends ServletContainer> containerClass = ServletContainer.class;
90 UserProvider userProvider = UserProvider.instantiate(conf);
91
92 if (userProvider.isHadoopSecurityEnabled() && userProvider.isHBaseSecurityEnabled()) {
93 String machineName = Strings.domainNamePointerToHostName(
94 DNS.getDefaultHost(conf.get(REST_DNS_INTERFACE, "default"),
95 conf.get(REST_DNS_NAMESERVER, "default")));
96 String keytabFilename = conf.get(REST_KEYTAB_FILE);
97 Preconditions.checkArgument(keytabFilename != null && !keytabFilename.isEmpty(),
98 REST_KEYTAB_FILE + " should be set if security is enabled");
99 String principalConfig = conf.get(REST_KERBEROS_PRINCIPAL);
100 Preconditions.checkArgument(principalConfig != null && !principalConfig.isEmpty(),
101 REST_KERBEROS_PRINCIPAL + " should be set if security is enabled");
102 userProvider.login(REST_KEYTAB_FILE, REST_KERBEROS_PRINCIPAL, machineName);
103 if (conf.get(REST_AUTHENTICATION_TYPE) != null) {
104 containerClass = RESTServletContainer.class;
105 authFilter = new FilterHolder();
106 authFilter.setClassName(AuthFilter.class.getName());
107 authFilter.setName("AuthenticationFilter");
108 }
109 }
110
111 UserGroupInformation realUser = userProvider.getCurrent().getUGI();
112 RESTServlet servlet = RESTServlet.getInstance(conf, realUser);
113
114 Options options = new Options();
115 options.addOption("p", "port", true, "Port to bind to [default: 8080]");
116 options.addOption("ro", "readonly", false, "Respond only to GET HTTP " +
117 "method requests [default: false]");
118 options.addOption(null, "infoport", true, "Port for web UI");
119
120 CommandLine commandLine = null;
121 try {
122 commandLine = new PosixParser().parse(options, args);
123 } catch (ParseException e) {
124 LOG.error("Could not parse: ", e);
125 printUsageAndExit(options, -1);
126 }
127
128
129 if (commandLine != null && commandLine.hasOption("port")) {
130 String val = commandLine.getOptionValue("port");
131 servlet.getConfiguration()
132 .setInt("hbase.rest.port", Integer.valueOf(val));
133 LOG.debug("port set to " + val);
134 }
135
136
137 if (commandLine != null && commandLine.hasOption("readonly")) {
138 servlet.getConfiguration().setBoolean("hbase.rest.readonly", true);
139 LOG.debug("readonly set to true");
140 }
141
142
143 if (commandLine != null && commandLine.hasOption("infoport")) {
144 String val = commandLine.getOptionValue("infoport");
145 servlet.getConfiguration()
146 .setInt("hbase.rest.info.port", Integer.valueOf(val));
147 LOG.debug("Web UI port set to " + val);
148 }
149
150 @SuppressWarnings("unchecked")
151 List<String> remainingArgs = commandLine != null ?
152 commandLine.getArgList() : new ArrayList<String>();
153 if (remainingArgs.size() != 1) {
154 printUsageAndExit(options, 1);
155 }
156
157 String command = remainingArgs.get(0);
158 if ("start".equals(command)) {
159
160 } else if ("stop".equals(command)) {
161 System.exit(1);
162 } else {
163 printUsageAndExit(options, 1);
164 }
165
166
167 ServletHolder sh = new ServletHolder(containerClass);
168 sh.setInitParameter(
169 "com.sun.jersey.config.property.resourceConfigClass",
170 ResourceConfig.class.getCanonicalName());
171 sh.setInitParameter("com.sun.jersey.config.property.packages",
172 "jetty");
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180 ServletHolder shPojoMap = new ServletHolder(containerClass);
181 @SuppressWarnings("unchecked")
182 Map<String, String> shInitMap = sh.getInitParameters();
183 for (Entry<String, String> e : shInitMap.entrySet()) {
184 shPojoMap.setInitParameter(e.getKey(), e.getValue());
185 }
186 shPojoMap.setInitParameter(JSONConfiguration.FEATURE_POJO_MAPPING, "true");
187
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190 Server server = new Server();
191
192 Connector connector = new SelectChannelConnector();
193 if(conf.getBoolean(REST_SSL_ENABLED, false)) {
194 SslSelectChannelConnector sslConnector = new SslSelectChannelConnector();
195 String keystore = conf.get(REST_SSL_KEYSTORE_STORE);
196 String password = conf.get(REST_SSL_KEYSTORE_PASSWORD);
197 String keyPassword = conf.get(REST_SSL_KEYSTORE_KEYPASSWORD, password);
198 sslConnector.setKeystore(keystore);
199 sslConnector.setPassword(password);
200 sslConnector.setKeyPassword(keyPassword);
201 connector = sslConnector;
202 }
203 connector.setPort(servlet.getConfiguration().getInt("hbase.rest.port", 8080));
204 connector.setHost(servlet.getConfiguration().get("hbase.rest.host", "0.0.0.0"));
205
206 server.addConnector(connector);
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211
212
213 int maxThreads = servlet.getConfiguration().getInt("hbase.rest.threads.max", 100);
214 int minThreads = servlet.getConfiguration().getInt("hbase.rest.threads.min", 2);
215 QueuedThreadPool threadPool = new QueuedThreadPool(maxThreads);
216 threadPool.setMinThreads(minThreads);
217 server.setThreadPool(threadPool);
218
219 server.setSendServerVersion(false);
220 server.setSendDateHeader(false);
221 server.setStopAtShutdown(true);
222
223 Context context = new Context(server, "/", Context.SESSIONS);
224 context.addServlet(shPojoMap, "/status/cluster");
225 context.addServlet(sh, "/*");
226 if (authFilter != null) {
227 context.addFilter(authFilter, "/*", 1);
228 }
229
230
231 String[] filterClasses = servlet.getConfiguration().getStrings(FILTER_CLASSES,
232 ArrayUtils.EMPTY_STRING_ARRAY);
233 for (String filter : filterClasses) {
234 filter = filter.trim();
235 context.addFilter(Class.forName(filter), "/*", 0);
236 }
237 HttpServerUtil.constrainHttpMethods(context);
238
239
240 int port = conf.getInt("hbase.rest.info.port", 8085);
241 if (port >= 0) {
242 conf.setLong("startcode", System.currentTimeMillis());
243 String a = conf.get("hbase.rest.info.bindAddress", "0.0.0.0");
244 InfoServer infoServer = new InfoServer("rest", a, port, false, conf);
245 infoServer.setAttribute("hbase.conf", conf);
246 infoServer.start();
247 }
248
249
250 server.start();
251 server.join();
252 }
253 }