Example usage for org.apache.hadoop.hdfs.server.namenode NameNode getServiceRpcAddress

Introduction

In this page you can find the example usage for org.apache.hadoop.hdfs.server.namenode NameNode getServiceRpcAddress.

Prototype

public InetSocketAddress getServiceRpcAddress() 

Source Link

Usage

From source file:backup.namenode.NameNodeBackupServicePlugin.java

License:Apache License

@Override
public void start(Object service) {
    UserGroupInformation ugi;/*from   w ww .ja  v  a  2 s. c  o  m*/
    try {
        ugi = UserGroupInformation.getCurrentUser();
        LOG.info("Starting NameNodeBackupServicePlugin with ugi {}", ugi);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
    Configuration conf = getConf();
    NameNode namenode = (NameNode) service;
    BlockManager blockManager = namenode.getNamesystem().getBlockManager();
    // This object is created here so that it's lifecycle follows the namenode
    try {
        restoreProcessor = SingletonManager.getManager(NameNodeRestoreProcessor.class).getInstance(namenode,
                () -> new NameNodeRestoreProcessor(getConf(), namenode, ugi));
        LOG.info("NameNode Backup plugin setup using UGI {}", ugi);

        NameNodeBackupRPCImpl backupRPCImpl = new NameNodeBackupRPCImpl(blockManager);

        InetSocketAddress listenerAddress = namenode.getServiceRpcAddress();
        int ipcPort = listenerAddress.getPort();
        String bindAddress = listenerAddress.getAddress().getHostAddress();
        int port = conf.getInt(DFS_BACKUP_NAMENODE_RPC_PORT_KEY, DFS_BACKUP_NAMENODE_RPC_PORT_DEFAULT);
        if (port == 0) {
            port = ipcPort + 1;
        }
        server = new RPC.Builder(conf).setBindAddress(bindAddress).setPort(port).setInstance(backupRPCImpl)
                .setProtocol(NameNodeBackupRPC.class).build();
        ServiceAuthorizationManager serviceAuthorizationManager = server.getServiceAuthorizationManager();
        serviceAuthorizationManager.refresh(conf, new BackupPolicyProvider());
        server.start();

        LOG.info("NameNode Backup RPC listening on {}", port);

        int httpPort = getConf().getInt(DFS_BACKUP_NAMENODE_HTTP_PORT_KEY,
                DFS_BACKUP_NAMENODE_HTTP_PORT_DEFAULT);
        if (httpPort != 0) {
            ClassLoader classLoader = getClassLoader();
            if (classLoader != null) {
                ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
                try {
                    BackupWebService<Stats> stats = getBackupWebService(ugi, blockManager, restoreProcessor);

                    // Have to setup classloader in thread context to get the static
                    // files in the http server tp be setup correctly.
                    Thread.currentThread().setContextClassLoader(classLoader);
                    Class<?> backupStatusServerClass = classLoader.loadClass(BACKUP_WEB_BACKUP_WEB_SERVER);

                    Object server = DuckTypeUtil.newInstance(backupStatusServerClass,
                            new Class[] { Integer.TYPE, BackupWebService.class },
                            new Object[] { httpPort, stats });
                    httpServer = DuckTypeUtil.wrap(HttpServer.class, server);
                    httpServer.start();
                    LOG.info("NameNode Backup HTTP listening on {}", httpPort);
                } finally {
                    Thread.currentThread().setContextClassLoader(contextClassLoader);
                }
            } else {
                LOG.info("NameNode Backup HTTP classes not found.");
            }
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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