【发布时间】:2014-03-13 16:25:06
【问题描述】:
我正在使用 Hortonworks Sandbox 2.0。我在 Eclipse IDE 中尝试了以下程序,但不是访问我的 Hive 表的表。得到以下错误。我该怎么做才能解决这个问题?
我也使用了这个:hive –service hiveserver,然后无法连接。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));
}
}
}
—— 出错了
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)
【问题讨论】:
-
您是在沙箱中还是在您的主机上运行此程序?如果在您的主机上运行,您需要使用沙盒 IP 地址
-
1) 我从我的 Eclipse 工作,它不工作。 2)我也在 vmware 沙箱中作为 jar 运行 - 也没有连接。它挂了...无法获取系统。我给出了 etc/hosts 文件中提到的 ip。如何从 sadbox 内部和外部进行连接。3)在使用加载 hortonwork imgae 的 vmware(vsphere 服务器)进行连接时遇到很多问题。需要建议。
-
我提到了我的 vsphere 客户端地址
标签: hadoop jdbc hive sandbox hortonworks-data-platform