Java Code Examples for org.apache.hive.service.server.HiveServer2#init()

@Before
public void setup() throws IOException {
    hdfsTemp = Files.createTempDirectory("hdfs");
    derbyDBPath = Files.createTempDirectory("derbyDB");

    HiveConf hiveConf = new HiveConf();
    hiveConf.set(HiveConf.ConfVars.METASTORECONNECTURLKEY.toString(), "jdbc:derby:;databaseName=" +
        derbyDBPath.toString() + "/derbyDB" + ";create=true");

    ServerSocket s = new ServerSocket(0);
    port = String.valueOf(s.getLocalPort());
    hiveConf.set(HiveConf.ConfVars.HIVE_SERVER2_THRIFT_PORT.varname, port);
    // Required to avoid NoSuchMethodError org.apache.hive.service.cli.operation.LogDivertAppender.setWriter
    hiveConf.set(HiveConf.ConfVars.HIVE_SERVER2_LOGGING_OPERATION_ENABLED.varname, "false");

    hiveServer2 = new HiveServer2();
    hiveServer2.init(hiveConf);
    s.close();
    hiveServer2.start();
}
 

private void createHiveServer() {
  HiveServer2 server = new HiveServer2();
  server.init(new HiveConf());
  for (Service service : server.getServices()) {
    if (service instanceof CLIService) {
      _client = (CLIService) service;
    }
  }
  Preconditions.checkNotNull(_client, "CLI service not found in local Hive server");
  try {
    _sessionHandle = _client.openSession(null, null, null);
    _functionRegistry = SessionState.getRegistryForWrite();
    // "map_from_entries" UDF is required to create maps with non-primitive key types
    _functionRegistry.registerGenericUDF("map_from_entries", MapFromEntriesWrapper.class);
    // TODO: This is a hack. Hive's public API does not have a way to register an already created GenericUDF object
    // It only accepts a class name after which the parameterless constructor of the class is called to create a
    // GenericUDF object. This does not work for HiveTestStdUDFWrapper as it accepts the UDF classes as parameters.
    // However, Hive has an internal method which does allow passing GenericUDF objects instead of classes.
    _functionRegistryAddFunctionMethod =
        _functionRegistry.getClass().getDeclaredMethod("addFunction", String.class, FunctionInfo.class);
    _functionRegistryAddFunctionMethod.setAccessible(true);
  } catch (HiveSQLException | NoSuchMethodException e) {
    throw new RuntimeException(e);
  }
}
 

public void initialise() throws InterruptedException {
  beejuCore.setHiveVar(HiveConf.ConfVars.HIVE_AUTHORIZATION_MANAGER,
      RelaxedSQLStdHiveAuthorizerFactory.class.getName());
  hiveServer2 = new HiveServer2();
  hiveServer2.init(beejuCore.conf());
  hiveServer2.start();
  waitForHiveServer2StartUp();

  jdbcConnectionUrl = "jdbc:hive2://localhost:" + port + "/" + beejuCore.databaseName();
}
 

@Override
public void start() throws Exception {
    hiveServer2 = new HiveServer2();
    LOG.info("HIVESERVER2: Starting HiveServer2 on port: {}", hiveServer2Port);
    configure();
    hiveServer2.init(hiveConf);
    hiveServer2.start();
}
 

/**
 * Will start the HiveServer.
 *
 * @param testConfig Specific test case properties. Will be merged with the HiveConf of the context
 * @param hiveVars   HiveVars to pass on to the HiveServer for this session
 */
public void init(Map<String, String> testConfig, Map<String, String> hiveVars) {

    context.init();

    HiveConf hiveConf = context.getHiveConf();

    // merge test case properties with hive conf before HiveServer is started.
    for (Map.Entry<String, String> property : testConfig.entrySet()) {
        hiveConf.set(property.getKey(), property.getValue());
    }

    try {
        hiveServer2 = new HiveServer2();
        hiveServer2.init(hiveConf);

        // Locate the ClIService in the HiveServer2
        for (Service service : hiveServer2.getServices()) {
            if (service instanceof CLIService) {
                client = (CLIService) service;
            }
        }

        Preconditions.checkNotNull(client, "ClIService was not initialized by HiveServer2");

        sessionHandle = client.openSession("noUser", "noPassword", null);

        SessionState sessionState = client.getSessionManager().getSession(sessionHandle).getSessionState();
        currentSessionState = sessionState;
        currentSessionState.setHiveVariables(hiveVars);
    } catch (Exception e) {
        throw new IllegalStateException("Failed to create HiveServer :" + e.getMessage(), e);
    }

    // Ping hive server before we do anything more with it! If validation
    // is switched on, this will fail if metastorage is not set up properly
    pingHiveServer();
}
 

private HiveServer2 startHiveServer(HiveConf serverConf) {
  HiveServer2 hiveServer = new HiveServer2();
  hiveServer.init(serverConf);
  hiveServer.start();
  return hiveServer;
}
 

@org.junit.BeforeClass
public static void setup() throws Exception {
    // Get a random port
    ServerSocket serverSocket = new ServerSocket(0);
    port = serverSocket.getLocalPort();
    serverSocket.close();

    HiveConf conf = new HiveConf();

    // Warehouse
    File warehouseDir = new File("./target/hdfs/warehouse").getAbsoluteFile();
    conf.set(HiveConf.ConfVars.METASTOREWAREHOUSE.varname, warehouseDir.getPath());

    // Scratchdir
    File scratchDir = new File("./target/hdfs/scratchdir").getAbsoluteFile();
    conf.set("hive.exec.scratchdir", scratchDir.getPath());

    // REPL DUMP target folder
    File replRootDir = new File("./target/user/hive").getAbsoluteFile();
    conf.set("hive.repl.rootdir", replRootDir.getPath());

    // Create a temporary directory for the Hive metastore
    File metastoreDir = new File("./metastore_db/").getAbsoluteFile();
    conf.set(HiveConf.ConfVars.METASTORECONNECTURLKEY.varname,
             String.format("jdbc:derby:;databaseName=%s;create=true",  metastoreDir.getPath()));

    conf.set(HiveConf.ConfVars.METASTORE_AUTO_CREATE_ALL.varname, "true");
    conf.set(HiveConf.ConfVars.HIVE_SERVER2_THRIFT_PORT.varname, "" + port);
    conf.set(HiveConf.ConfVars.METASTORE_SCHEMA_VERIFICATION.toString(), "false");
    conf.set(HiveConf.ConfVars.HIVE_SERVER2_WEBUI_PORT.varname, "0");
    conf.set(HiveConf.ConfVars.HIVE_EXECUTION_ENGINE.varname,"mr");

    hiveServer = new HiveServer2();
    hiveServer.init(conf);
    hiveServer.start();

    Class.forName("org.apache.hive.jdbc.HiveDriver");

    // Create database
    String initialUrl = "jdbc:hive2://localhost:" + port;
    Connection connection = DriverManager.getConnection(initialUrl, "admin", "admin");
    Statement statement = connection.createStatement();

    statement.execute("CREATE DATABASE IF NOT EXISTS rangerauthz with dbproperties ('repl.source.for'='1,2,3')");
    statement.execute("CREATE DATABASE IF NOT EXISTS demo");

    statement.close();
    connection.close();

    // Load data into HIVE
    String url = "jdbc:hive2://localhost:" + port + "/rangerauthz";
    connection = DriverManager.getConnection(url, "admin", "admin");
    statement = connection.createStatement();
    // statement.execute("CREATE TABLE WORDS (word STRING, count INT)");
    statement.execute("create table if not exists words (word STRING, count INT) row format delimited fields terminated by '\t' stored as textfile");

    // Copy "wordcount.txt" to "target" to avoid overwriting it during load
    File inputFile = new File(HIVERangerAuthorizerTest.class.getResource("../../../../../wordcount.txt").toURI());
    Path outputPath = Paths.get(inputFile.toPath().getParent().getParent().toString() + File.separator + "wordcountout.txt");
    Files.copy(inputFile.toPath(), outputPath);

    statement.execute("LOAD DATA INPATH '" + outputPath + "' OVERWRITE INTO TABLE words");

    // Just test to make sure it's working
    ResultSet resultSet = statement.executeQuery("SELECT * FROM words where count == '100'");
    if (resultSet.next()) {
        Assert.assertEquals("Mr.", resultSet.getString(1));
    } else {
        Assert.fail("No ResultSet found");
    }

    statement.close();
    connection.close();

    // Enable ranger authorization after the initial db setup and table creating is done.
    conf.set(HiveConf.ConfVars.HIVE_AUTHORIZATION_ENABLED.varname, "true");
    conf.set(HiveConf.ConfVars.HIVE_SERVER2_ENABLE_DOAS.varname, "true");
    conf.set(HiveConf.ConfVars.HIVE_AUTHORIZATION_MANAGER.varname,
             "org.apache.ranger.authorization.hive.authorizer.RangerHiveAuthorizerFactory");

}
 

private int runLoad(boolean disableMrUpdate) throws IOException, InterruptedException, ClassNotFoundException,
    SQLException {

  Configuration configuration = miniCluster.getMRConfiguration();
  writeSiteFiles(configuration);
  HiveConf hiveConf = new HiveConf(configuration, getClass());
  hiveConf.set("hive.server2.thrift.port", "0");
  HiveServer2 hiveServer2 = new HiveServer2();
  hiveServer2.init(hiveConf);
  hiveServer2.start();

  int port = waitForStartupAndGetPort(hiveServer2);

  Class.forName(HiveDriver.class.getName());
  String userName = UserGroupInformation.getCurrentUser().getShortUserName();
  Connection connection = DriverManager.getConnection("jdbc:hive2://localhost:" + port, userName, "");

  UserGroupInformation currentUser = UserGroupInformation.getCurrentUser();

  run(connection, "set blur.user.name=" + currentUser.getUserName());
  run(connection, "set blur.mr.update.disabled=" + disableMrUpdate);
  run(connection, "set hive.metastore.warehouse.dir=" + WAREHOUSE.toURI().toString());
  run(connection, "create database if not exists testdb");
  run(connection, "use testdb");

  run(connection, "CREATE TABLE if not exists testtable ROW FORMAT SERDE 'org.apache.blur.hive.BlurSerDe' "
      + "WITH SERDEPROPERTIES ( 'blur.zookeeper.connection'='" + miniCluster.getZkConnectionString() + "', "
      + "'blur.table'='" + TEST + "', 'blur.family'='" + FAM + "' ) "
      + "STORED BY 'org.apache.blur.hive.BlurHiveStorageHandler'");

  run(connection, "desc testtable");

  String createLoadTable = buildCreateLoadTable(connection);
  run(connection, createLoadTable);
  File dbDir = new File(WAREHOUSE, "testdb.db");
  File tableDir = new File(dbDir, "loadtable");
  int totalRecords = 100;
  generateData(tableDir, totalRecords);

  run(connection, "select * from loadtable");
  run(connection, "set " + BlurSerDe.BLUR_BLOCKING_APPLY + "=true");
  run(connection, "insert into table testtable select * from loadtable");
  connection.close();
  hiveServer2.stop();
  return totalRecords;
}
 

private HiveServer2 startHiveServer(HiveConf serverConf) {
  HiveServer2 hiveServer = new HiveServer2();
  hiveServer.init(serverConf);
  hiveServer.start();
  return hiveServer;
}