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| public class QuorumPeerMain {
private static final Logger LOG = LoggerFactory.getLogger(QuorumPeerMain.class);
private static final String USAGE = "Usage: QuorumPeerMain configfile";
protected QuorumPeer quorumPeer;
public static void main(String[] args) { QuorumPeerMain main = new QuorumPeerMain(); 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 { QuorumPeerConfig config = new QuorumPeerConfig(); if (args.length == 1) { config.parse(args[0]); }
DatadirCleanupManager purgeMgr = new DatadirCleanupManager( config.getDataDir(), config.getDataLogDir(), config.getSnapRetainCount(), config.getPurgeInterval()); purgeMgr.start();
if (args.length == 1 && config.isDistributed()) { runFromConfig(config); } else { LOG.warn("Either no config or no quorum defined in config, running in standalone mode"); ZooKeeperServerMain.main(args); } }
public void runFromConfig(QuorumPeerConfig config) throws IOException, AdminServerException { try { ManagedUtil.registerLog4jMBeans(); } catch (JMException e) { LOG.warn("Unable to register log4j JMX control", e); }
LOG.info("Starting quorum peer"); MetricsProvider metricsProvider; try { metricsProvider = MetricsProviderBootstrap.startMetricsProvider( config.getMetricsProviderClassName(), config.getMetricsProviderConfiguration()); } catch (MetricsProviderLifeCycleException error) { throw new IOException("Cannot boot MetricsProvider " + config.getMetricsProviderClassName(), error); } try { ServerMetrics.metricsProviderInitialized(metricsProvider); ServerCnxnFactory cnxnFactory = null; ServerCnxnFactory secureCnxnFactory = null;
if (config.getClientPortAddress() != null) { cnxnFactory = ServerCnxnFactory.createFactory(); cnxnFactory.configure(config.getClientPortAddress(), config.getMaxClientCnxns(), config.getClientPortListenBacklog(), false); }
if (config.getSecureClientPortAddress() != null) { secureCnxnFactory = ServerCnxnFactory.createFactory(); secureCnxnFactory.configure(config.getSecureClientPortAddress(), config.getMaxClientCnxns(), config.getClientPortListenBacklog(), true); }
quorumPeer = getQuorumPeer(); quorumPeer.setTxnFactory(new FileTxnSnapLog(config.getDataLogDir(), config.getDataDir())); quorumPeer.enableLocalSessions(config.areLocalSessionsEnabled()); quorumPeer.enableLocalSessionsUpgrading(config.isLocalSessionsUpgradingEnabled()); quorumPeer.setElectionType(config.getElectionAlg()); quorumPeer.setMyid(config.getServerId()); quorumPeer.setTickTime(config.getTickTime()); quorumPeer.setMinSessionTimeout(config.getMinSessionTimeout()); quorumPeer.setMaxSessionTimeout(config.getMaxSessionTimeout()); quorumPeer.setInitLimit(config.getInitLimit()); quorumPeer.setSyncLimit(config.getSyncLimit()); quorumPeer.setConnectToLearnerMasterLimit(config.getConnectToLearnerMasterLimit()); quorumPeer.setObserverMasterPort(config.getObserverMasterPort()); quorumPeer.setConfigFileName(config.getConfigFilename()); quorumPeer.setClientPortListenBacklog(config.getClientPortListenBacklog()); quorumPeer.setZKDatabase(new ZKDatabase(quorumPeer.getTxnFactory())); quorumPeer.setQuorumVerifier(config.getQuorumVerifier(), false); if (config.getLastSeenQuorumVerifier() != null) { quorumPeer.setLastSeenQuorumVerifier(config.getLastSeenQuorumVerifier(), false); } quorumPeer.initConfigInZKDatabase(); quorumPeer.setCnxnFactory(cnxnFactory); quorumPeer.setSecureCnxnFactory(secureCnxnFactory); quorumPeer.setSslQuorum(config.isSslQuorum()); quorumPeer.setUsePortUnification(config.shouldUsePortUnification()); quorumPeer.setLearnerType(config.getPeerType()); quorumPeer.setSyncEnabled(config.getSyncEnabled()); quorumPeer.setQuorumListenOnAllIPs(config.getQuorumListenOnAllIPs()); if (config.sslQuorumReloadCertFiles) { quorumPeer.getX509Util().enableCertFileReloading(); } quorumPeer.setMultiAddressEnabled(config.isMultiAddressEnabled()); quorumPeer.setMultiAddressReachabilityCheckEnabled(config.isMultiAddressReachabilityCheckEnabled()); quorumPeer.setMultiAddressReachabilityCheckTimeoutMs(config.getMultiAddressReachabilityCheckTimeoutMs());
quorumPeer.setQuorumSaslEnabled(config.quorumEnableSasl); if (quorumPeer.isQuorumSaslAuthEnabled()) { quorumPeer.setQuorumServerSaslRequired(config.quorumServerRequireSasl); quorumPeer.setQuorumLearnerSaslRequired(config.quorumLearnerRequireSasl); quorumPeer.setQuorumServicePrincipal(config.quorumServicePrincipal); quorumPeer.setQuorumServerLoginContext(config.quorumServerLoginContext); quorumPeer.setQuorumLearnerLoginContext(config.quorumLearnerLoginContext); } quorumPeer.setQuorumCnxnThreadsSize(config.quorumCnxnThreadsSize); quorumPeer.initialize();
if (config.jvmPauseMonitorToRun) { quorumPeer.setJvmPauseMonitor(new JvmPauseMonitor(config)); }
quorumPeer.start(); ZKAuditProvider.addZKStartStopAuditLog(); quorumPeer.join(); } catch (InterruptedException e) { LOG.warn("Quorum Peer interrupted", e); } finally { if (metricsProvider != null) { try { metricsProvider.stop(); } catch (Throwable error) { LOG.warn("Error while stopping metrics", error); } } } }
protected QuorumPeer getQuorumPeer() throws SaslException { return new QuorumPeer(); }
}
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