Question

我正在尝试通过Java应用程序连接到Hive2，但是我收到以下错误 -

Exception in thread "main" java.sql.SQLException: [Simba][HiveJDBCDriver](500310) Invalid operation: Peer indicated failure: Unsupported mechanism type PLAIN;

        at com.cloudera.hive.hivecommon.api.HiveServer2ClientFactory.createTransport(HiveServer2ClientFactory.java:224)
        at com.cloudera.hive.hive.api.ExtendedHS2Factory.createClient(ExtendedHS2Factory.java:38)
        at com.cloudera.hive.hivecommon.core.HiveJDBCConnection.connect(HiveJDBCConnection.java:597)
        at com.cloudera.hive.jdbc.common.BaseConnectionFactory.doConnect(BaseConnectionFactory.java:219)
        at com.cloudera.hive.jdbc.common.AbstractDriver.connect(AbstractDriver.java:216)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:247)
    Caused by: com.cloudera.hive.support.exceptions.GeneralException: [Simba][HiveJDBCDriver](500310) Invalid operation: Peer indicated failure: Unsupported mechanism type PLAIN;
        ... 7 more
    Caused by: org.apache.thrift.transport.TTransportException: Peer indicated failure: Unsupported mechanism type PLAIN
        at org.apache.thrift.transport.TSaslTransport.receiveSaslMessage(TSaslTransport.java:190)
        at org.apache.thrift.transport.TSaslTransport.open(TSaslTransport.java:288)
        at org.apache.thrift.transport.TSaslClientTransport.open(TSaslClientTransport.java:37)
        at com.cloudera.hive.hivecommon.api.HiveServer2ClientFactory.createTransport(HiveServer2ClientFactory.java:210)
        at com.cloudera.hive.hive.api.ExtendedHS2Factory.createClient(ExtendedHS2Factory.java:38)
        at com.cloudera.hive.hivecommon.core.HiveJDBCConnection.connect(HiveJDBCConnection.java:597)
        at com.cloudera.hive.jdbc.common.BaseConnectionFactory.doConnect(BaseConnectionFactory.java:219)
        at com.cloudera.hive.jdbc.common.AbstractDriver.connect(AbstractDriver.java:216)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:247)
        at hive2.hive.main(hive.java:30)

我在cloudera中使用了相同的文档：https://www.cloudera.com/documentation/other/connectors/hive-jdbc/2-5-4.html 任何帮助将不胜感激。我正在尝试以下连接字符串： - Connection con = DriverManager.getConnection("jdbc:hive2://server.com:12345/default;principal=hive/_org.COM","user_id","pwd");

完整的代码：

package hive2;
import java.sql.SQLException;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;


import java.sql.DriverManager;

public class hive {
  private static String driverName = "com.cloudera.hive.jdbc4.HS2Driver";

  public static void main(String[] args) throws SQLException {
    try {
      Class.forName(driverName);
    } catch (ClassNotFoundException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
      System.exit(1);
    }





   Connection con = DriverManager.getConnection("jdbc:hive2://server.com:12345/default;principal=hive/_org.COM","user_id","pwd");
    Statement stmt = con.createStatement();
    String tableName = "testHiveDriverTable";
    stmt.executeQuery("drop table " + tableName);
    ResultSet res = stmt.executeQuery("create table " + tableName + " (key int, value string)");
    // show tables
    String sql = "show tables '" + tableName + "'";
    System.out.println("Running: " + sql);
    res = stmt.executeQuery(sql);
    if (res.next()) {
      System.out.println(res.getString(1));
    }
    // describe table
    sql = "describe " + tableName;
    System.out.println("Running: " + sql);
    res = stmt.executeQuery(sql);
    while (res.next()) {
      System.out.println(res.getString(1) + "\t" + res.getString(2));
    }

    // load data into table
    // NOTE: filepath has to be local to the hive server
    // NOTE: /tmp/a.txt is a ctrl-A separated file with two fields per line
    String filepath = "/tmp/a.txt";
    sql = "load data local inpath '" + filepath + "' into table " + tableName;
    System.out.println("Running: " + sql);
    res = stmt.executeQuery(sql);

    // select * query
    sql = "select * from " + tableName;
    System.out.println("Running: " + sql);
    res = stmt.executeQuery(sql);
    while (res.next()) {
      System.out.println(String.valueOf(res.getInt(1)) + "\t" + res.getString(2));
    }

    // regular hive query
    sql = "select count(1) from " + tableName;
    System.out.println("Running: " + sql);
    res = stmt.executeQuery(sql);
    while (res.next()) {
      System.out.println(res.getString(1));
    }
  }
}

Answer 1

代码中的驱动程序类是ODBC驱动程序，不能用于与hiveserver2的JDBC连接。请参阅以下apache Hive url以获取JDBC连接。

以下是Hiveserver2 JDBC连接的示例代码段。

https://cwiki.apache.org/confluence/display/Hive/HiveClient#HiveClient-JDBC

文档中也提供了依赖jar，您可以在hive lib路径中找到这些依赖jar。（/ opt / cloudera / CDH / hive / lib / *）

无法通过Java应用程序连接到Hive

1 个答案: