Question

我正在尝试使用JDBC连接连接到impala。使用的Imapala驱动器罐是impalaJDBC41。创建连接对象'con'时出错错误是 - [Simba] ImpalaJDBCDriver错误设置/关闭Imapala jdbc连接中的会话

代码如下：

import java.sql.Connection;    
import java.sql.DriverManager;

import java.sql.SQLException;
import java.sql.Statement;

public class JDBC_Connection1 {
    private static String driverName = "com.cloudera.impala.jdbc41.Driver";
    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:impala://host:25004/;principal=impala/host@abc.ENTERPRISENET.ORG");
         Statement stmt = con.createStatement();
         String tableName = "yogesh";
         stmt.executeQuery("drop table " + tableName);
    }

}

Answer 1

网址应为： JDBC：帕拉：//192.168.8.183：21050; AuthMech = 1; KrbRealm = abc.ENTERPRISENET.ORG; KrbHostFQDN =您的主机; KrbServiceName =帕拉

和kerberos需要hadoop kerberos env

System.setProperty("sun.security.krb5.debug", "false");
System.setProperty("java.security.krb5.conf",loader.getResource("secret/krb5.ini").getPath());
org.apache.hadoop.conf.Configuration conf = new org.apache.hadoop.conf.Configuration();
conf.set("hadoop.security.authentication", "Kerberos");
UserGroupInformation.setConfiguration(conf);
UserGroupInformation.loginUserFromKeytab("hdfs/admin@HADOOP.COM", loader.getResource("secret/184_hdfs.keytab").getPath());
        UserGroupInformation loginUser = UserGroupInformation.getLoginUser();
        loginUser.doAs(new PrivilegedAction<Void>() {
            @Override
            public Void run() {
                connectImpala();
                return null;
            }
        });
}

Answer 2

我和Hive的Cloudera JDBC驱动程序有相同的错误（代码500151），并且能够通过将;SocketTimeout=0添加到我的连接字符串来解决它。

请务必阅读文档，以确保您不会忘记某些属性：

Simba] [ImpalaJDBCDriver]（500151）在Imapala jdbc连接中设置/关闭会话时出错

2 个答案: