Question

I’m following the hive JDBC tutorial. I could not get it working. When it try to get the connection it just hangs. It does not report any error either. I’m sure the Hive server is running. Any help?

public class HiveJdbcClient {
  private static String driverName = "org.apache.hadoop.hive.jdbc.HiveDriver";
  public static void main(String[] args){
      try {
      Class.forName(driverName);
    } catch (ClassNotFoundException e) {
           e.printStackTrace();
      System.exit(1);
    }

    try{
        Connection con = DriverManager.getConnection("jdbc:hive://localhost:10000/default", "", "");
        System.out.println("got the connection");

    }catch(SQLException e){
        e.printStackTrace();
    }
  }
}

output of the netstat:

$ sudo netstat -anlp | grep 10000
Password:
tcp        0      0 0.0.0.0:10000               0.0.0.0:*                   LISTEN      27738/java
tcp      107      0 127.0.0.1:10000             127.0.0.1:45910             ESTABLISHED 27738/java
tcp        0      0 127.0.0.1:33665             127.0.0.1:10000             ESTABLISHED 24475/java
tcp        0      0 127.0.0.1:45910             127.0.0.1:10000             ESTABLISHED 7445/java
tcp      107      0 127.0.0.1:10000             127.0.0.1:33665             ESTABLISHED 27738/java

Answer 1

Naresh: Try stopping the triffserver, then move to the HIVE_HOME/bin directory from your terminal, then start the hive trift server using the ./hive –service hiveserver 10000 & command. Then try running the program. Do a create table as per the hive client wiki example . Then do a show tables query in the next step. Let us know the result once this steps are followed. We can have a discussion after that.