无法通过hortonworks沙盒2.0中的jdbc访问配置单元表

00jrzges  于 2021-06-04  发布在  Hadoop
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我正在使用hortonworks沙盒2.0。我在EclipseIDE中尝试了以下程序,但无法访问配置单元表。出现以下错误。我要怎么做才能解决这个问题?
我也用了这个: hive –service hiveserver ,无法连接。我正在使用vmware。

import java.sql.SQLException;
    import java.sql.Connection;
    import java.sql.ResultSet;
    import java.sql.Statement;
    import java.sql.DriverManager;

    public class HiveJdbcClient {
    private static String driverName = “org.apache.hadoop.hive.jdbc.HiveDriver”;

    /**
    * @param args
    * @throws SQLException
    */
    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:hive://localhost:10000/default”, “”, “”);
    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));
    }
    }
    }

--出现错误

Exception in thread “main” java.sql.SQLException: Could not establish connection to 172.31.153.71:10000/default: java.net.ConnectException: Connection refused: connect
at org.apache.hadoop.hive.jdbc.HiveConnection.<init>(HiveConnection.java:117)
at org.apache.hadoop.hive.jdbc.HiveDriver.connect(HiveDriver.java:106)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at com.coe.convert.hive.temp.htw.HiveJdbcClient.main(HiveJdbcClient.java:28)
3b6akqbq

3b6akqbq1#

在另一个端口上运行配置单元。然后使用新的端口号。使用以下命令将端口号10000更改为10001。 hive --service hiveserver -p 10001 然后使用,

172.31.153.71:10000/default

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