1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
|
@InterfaceAudience.Public public class ZooKeeperServerMain {
private static final Logger LOG = LoggerFactory.getLogger(ZooKeeperServerMain.class);
private static final String USAGE = "Usage: ZooKeeperServerMain configfile | port datadir [ticktime] [maxcnxns]";
private ServerCnxnFactory cnxnFactory; private ServerCnxnFactory secureCnxnFactory; private ContainerManager containerManager; private MetricsProvider metricsProvider; private AdminServer adminServer;
public static void main(String[] args) { ZooKeeperServerMain main = new ZooKeeperServerMain(); try { main.initializeAndRun(args); } catch (IllegalArgumentException e) { LOG.error("Invalid arguments, exiting abnormally", e); LOG.info(USAGE); System.err.println(USAGE); ZKAuditProvider.addServerStartFailureAuditLog(); ServiceUtils.requestSystemExit(ExitCode.INVALID_INVOCATION.getValue()); } catch (ConfigException e) { LOG.error("Invalid config, exiting abnormally", e); System.err.println("Invalid config, exiting abnormally"); ZKAuditProvider.addServerStartFailureAuditLog(); ServiceUtils.requestSystemExit(ExitCode.INVALID_INVOCATION.getValue()); } catch (DatadirException e) { LOG.error("Unable to access datadir, exiting abnormally", e); System.err.println("Unable to access datadir, exiting abnormally"); ZKAuditProvider.addServerStartFailureAuditLog(); ServiceUtils.requestSystemExit(ExitCode.UNABLE_TO_ACCESS_DATADIR.getValue()); } catch (AdminServerException e) { LOG.error("Unable to start AdminServer, exiting abnormally", e); System.err.println("Unable to start AdminServer, exiting abnormally"); ZKAuditProvider.addServerStartFailureAuditLog(); ServiceUtils.requestSystemExit(ExitCode.ERROR_STARTING_ADMIN_SERVER.getValue()); } catch (Exception e) { LOG.error("Unexpected exception, exiting abnormally", e); ZKAuditProvider.addServerStartFailureAuditLog(); ServiceUtils.requestSystemExit(ExitCode.UNEXPECTED_ERROR.getValue()); } LOG.info("Exiting normally"); ServiceUtils.requestSystemExit(ExitCode.EXECUTION_FINISHED.getValue()); }
protected void initializeAndRun(String[] args) throws ConfigException, IOException, AdminServerException { try { ManagedUtil.registerLog4jMBeans(); } catch (JMException e) { LOG.warn("Unable to register log4j JMX control", e); }
ServerConfig config = new ServerConfig(); if (args.length == 1) { config.parse(args[0]); } else { config.parse(args); }
runFromConfig(config); }
public void runFromConfig(ServerConfig config) throws IOException, AdminServerException { LOG.info("Starting server"); FileTxnSnapLog txnLog = null; try { try { metricsProvider = MetricsProviderBootstrap.startMetricsProvider( config.getMetricsProviderClassName(), config.getMetricsProviderConfiguration()); } catch (MetricsProviderLifeCycleException error) { throw new IOException("Cannot boot MetricsProvider " + config.getMetricsProviderClassName(), error); } ServerMetrics.metricsProviderInitialized(metricsProvider); txnLog = new FileTxnSnapLog(config.dataLogDir, config.dataDir); JvmPauseMonitor jvmPauseMonitor = null; if (config.jvmPauseMonitorToRun) { jvmPauseMonitor = new JvmPauseMonitor(config); } final ZooKeeperServer zkServer = new ZooKeeperServer(jvmPauseMonitor, txnLog, config.tickTime, config.minSessionTimeout, config.maxSessionTimeout, config.listenBacklog, null, config.initialConfig); txnLog.setServerStats(zkServer.serverStats());
final CountDownLatch shutdownLatch = new CountDownLatch(1); zkServer.registerServerShutdownHandler(new ZooKeeperServerShutdownHandler(shutdownLatch));
adminServer = AdminServerFactory.createAdminServer(); adminServer.setZooKeeperServer(zkServer); adminServer.start();
boolean needStartZKServer = true; if (config.getClientPortAddress() != null) { cnxnFactory = ServerCnxnFactory.createFactory(); cnxnFactory.configure(config.getClientPortAddress(), config.getMaxClientCnxns(), config.getClientPortListenBacklog(), false); cnxnFactory.startup(zkServer); needStartZKServer = false; } if (config.getSecureClientPortAddress() != null) { secureCnxnFactory = ServerCnxnFactory.createFactory(); secureCnxnFactory.configure(config.getSecureClientPortAddress(), config.getMaxClientCnxns(), config.getClientPortListenBacklog(), true); secureCnxnFactory.startup(zkServer, needStartZKServer); }
containerManager = new ContainerManager( zkServer.getZKDatabase(), zkServer.firstProcessor, Integer.getInteger("znode.container.checkIntervalMs", (int) TimeUnit.MINUTES.toMillis(1)), Integer.getInteger("znode.container.maxPerMinute", 10000), Long.getLong("znode.container.maxNeverUsedIntervalMs", 0) ); containerManager.start(); ZKAuditProvider.addZKStartStopAuditLog();
shutdownLatch.await();
shutdown();
if (cnxnFactory != null) { cnxnFactory.join(); } if (secureCnxnFactory != null) { secureCnxnFactory.join(); } if (zkServer.canShutdown()) { zkServer.shutdown(true); } } catch (InterruptedException e) { LOG.warn("Server interrupted", e); } finally { if (txnLog != null) { txnLog.close(); } if (metricsProvider != null) { try { metricsProvider.stop(); } catch (Throwable error) { LOG.warn("Error while stopping metrics", error); } } } }
protected void shutdown() { if (containerManager != null) { containerManager.stop(); } if (cnxnFactory != null) { cnxnFactory.shutdown(); } if (secureCnxnFactory != null) { secureCnxnFactory.shutdown(); } try { if (adminServer != null) { adminServer.shutdown(); } } catch (AdminServerException e) { LOG.warn("Problem stopping AdminServer", e); } }
ServerCnxnFactory getCnxnFactory() { return cnxnFactory; }
}
|