I am trying to connect to Aster server with jdbc drivers from java. I have added already the Jar files to the classpath.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.*;
public class TeradataJDBCConnection {
public static void main(String[] args) throws Exception {
Class.forName("com.asterdata.ncluster.Driver");
String url="jdbc:ncluster://<ip_address>:2406/test";
Connection conn=DriverManager.getConnection(url, "user123", "test");
}
}
But I am getting the below error.
Exception in thread "main" java.sql.SQLException: [AsterData][ASTERJDBCDSII](34) : Failed to connect to 10.99.186.92. Please check the host address. ()
at com.asterdata.ncluster.jdbc.core.NClusterConnection.connect(Unknown Source)
at com.simba.jdbc.common.BaseConnectionFactory.doConnect(Unknown Source)
at com.simba.jdbc.common.AbstractDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at Tera.TeradataJDBCConnection.main(TeradataJDBCConnection.java:17)
Caused by: com.asterdata.ncluster.jdbc.core.MuleException: [AsterData][ASTERJDBCDSII](34) : Failed to connect to 10.99.186.92. Please check the host address. ()
... 6 more
No bug in the code.
Everything is running fine.
Download the jdbc driver from here.
https://aster-community.teradata.com/docs/DOC-2254
You could also download the driver from here: http://downloads.teradata.com/download/aster/aster-client-tools-for-windows
You can use the jar noarch-aster-jdbc-driver from AsterJDBC__indep_indep.06.10.00.02.zip file. This jar file works for my connection.
Related
Kindly forgive the poor presentation and unethical coding lines if any
I'm trying to create my first jdbc class using embedded derby driver, I have created a maven project and added the following dependency
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derby</artifactId>
<version>10.11.1.1</version>
</dependency>
I created a derby database in eclipse database developer, the ping to the database was successful, created a table and inserted values into it.
When I run the below java program
import java.sql.*;
import org.apache.derby.jdbc.*;
public class SiteDao implements SiteDaoInterface {
public static void main(String[] args)
{
String url ="jdbc:derby:C://Users//shash//MyDB;create=true";
String username="xyz";
String password="xyz";
String query="select * from practise.abc";
//Class.forName("org.apache.derby.jdbc.ClientDriver")
try {
//Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
//DriverManager.registerDriver(new org.apache.derby.jdbc.EmbeddedDriver());
Connection con=DriverManager.getConnection(url,username,password);
Statement st= con.createStatement();
ResultSet rs=st.executeQuery(query);
int i,j;
while( rs.next())
{
i=rs.getInt(1);
j=rs.getInt(2);
System.out.println("data is"+i+","+j);
}
st.close();
con.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
I'm encountering the below error.
Exception in thread "main" java.lang.NoSuchMethodError: 'void org.apache.derby.iapi.services.i18n.MessageService.setFinder(org.apache.derby.iapi.services.i18n.BundleFinder)'
at org.apache.derby.impl.services.monitor.BaseMonitor.runWithState(Unknown Source)
at org.apache.derby.impl.services.monitor.FileMonitor.<init>(Unknown Source)
at org.apache.derby.iapi.services.monitor.Monitor.startMonitor(Unknown Source)
at org.apache.derby.iapi.jdbc.JDBCBoot.boot(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.boot(Unknown Source)
at org.apache.derby.jdbc.EmbeddedDriver.<clinit>(Unknown Source)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:377)
at com.smedia.dao.SiteDao.main(SiteDao.java:17)
I tried to go through the class mentioned in the error but encountered the below issue
I tried many solutions offered on internet but it didn't work
I'm using java 15.0.1 and even tried using derby-10.15.2.0 as suggested in some stackoverflow solutions but it didn't work (moreover there is no EmbeddedDriver class in 10.15.x.x version to my surprise)
Please let me know where am I ruining the code?
In my wicket application I have this service class:
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
#Component
#Transactional
public class DatabaseService {
#Autowired
SessionFactory sessionFactory;
public void save(Message m) {}
}
This service class is "injected" into a wicket panel:
public class MyPanel extends Panel {
#SpringBean()
private DatabaseService service;
}
It works fine. But if I open the application hours later (server is still running), I receive following error:
java.net.SocketException: Datenübergabe unterbrochen (broken pipe)
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(Unknown Source)
at java.net.SocketOutputStream.write(Unknown Source)
[...]
at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
at java.io.BufferedOutputStream.flush(Unknown Source)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:3634)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2460)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2625)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2547)
at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4874)
at org.apache.commons.dbcp.DelegatingConnection.setAutoCommit(DelegatingConnection.java:371)
at org.apache.commons.dbcp.PoolingDataSource$PoolGuardConnectionWrapper.setAutoCommit(PoolingDataSource.java:328)
[...]
(JdbcResourceLocalTransactionCoordinatorImpl.java:214)
at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:52)
at org.hibernate.internal.SessionImpl.beginTransaction(SessionImpl.java:1525)
at org.springframework.orm.hibernate5.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:500)
[...]
at de.project.database.DatabaseService$$EnhancerBySpringCGLIB$$8fa0ab80.getMessages(<generated>)
at WICKET_de.project.database.DatabaseService$$FastClassByCGLIB$$68e55e7c.invoke(<generated>)
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.apache.wicket.proxy.LazyInitProxyFactory$AbstractCGLibInterceptor.intercept(LazyInitProxyFactory.java:350)
at WICKET_de.project.database.DatabaseService$$EnhancerByCGLIB$$a9cbdf2b.getMessages(<generated>)
at de.project.pms.MyPanel.<init>(MyPanel.java:26)
at de.project.home.projectHome.<init>(projectHome.java:17)
Is it connected with the (un)detach mechanismn of wicket?
MySQL connections usually time out after a period of time. This causes exceptions if you are using a datasource/connection pool and do not use connection validation. From the stack trace you've pasted I see that you are using apache dbcp as a datasource, so I think you should set the following parameters on it:
validationQuery, testOnCreate, testOnBorrow, testOnReturn, testWhileIdle
This is my simple JDBC program but I am not able to establish connection. The class path is set up with ojdbc6.jar.
package Demo;
import java.sql.*;
public class JdbcDemo {
public static void main(String[] args)throws Exception {
// TODO Auto-generated method stub
System.out.println("hi");
Class.forName("oracle.jdbc.driver.OracleDriver");
System.out.println("hi1");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:#localhost:1521:system","scott","tiger");
}
}
This is the output and the exception I am getting:
Exception in thread "main" java.sql.SQLRecoverableException: Io exception: The Network Adapter could not establish the connection
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:101)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:112)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:173)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:229)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:458)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:411)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:490)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:202)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:465)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at Demo.JdbcDemo.main(JdbcDemo.java:13)
Please check the following
Have you started Oracle TNS Listener, if not start by lsnrctl utility.
Have you put the correct port
Is your hostname correct in the database server?
The issue could be any one of the above.
For special needs, I use the unzipped jar format ojdbc6.jar.
The code source of my connection to the database oracle is :
import java.sql.DriverManager;
import java.sql.SQLException;
....
try
{
String driver = "oracle.jdbc.driver.OracleDriver";
String url = "jdbc:oracle:thin:#x.x.x.x:1521:dev";
String login = "dev";
String password = "dev";
Class.forName(driver);
DriverManager.getConnection(url, login, password); // Error is generated by this line
}
catch (SQLException e)
{
System.err.println("error");
}
.....
When i launch the program, i have this exception :
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
at oracle.jdbc.driver.T4CTTIoauthenticate.setSessionFields(T4CTTIoauthenticate.java:999)
at oracle.jdbc.driver.T4CTTIoauthenticate.<init>(T4CTTIoauthenticate.java:235)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:370)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:546)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:236)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
.......
I use
ojdbc6.jar (11.2.0.2)
JRE 1.6.0_24
Oracle 11g
The database is accessible and the data connection are correct.
I was looking into the same error above for a RMI server issue. I added -Djava.security.policy=$RMIPATH"/policy.txt" to my runtime script and created a policy.txt file that stated.
grant {
permission java.security.AllPermission;
};
I hate disabling security but it works... My runtime is 1.8.31
I have a created a simple MapReduce Driver that implements the Tool interface. But when I try to run the job in Eclipse, I get a NoClassDefFoundError before the run() method is invoked.
I am running Hadoop 0.20.2 on Ubuntu 10.04 LTS. The source code and stack trace are provided below. Any assistance will be greatly appreciated.
Sourcecode
import org.apache.hadoop.conf.*;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.*;
import org.apache.hadoop.mapreduce.*;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.util.*;
public class MyTestDriver extends Configured implements Tool {
#Override
public int run(String[] args) throws Exception {
if (args.length != 2) {
System.err.printf("Usage: %s [generic options] <input> <output>\n",
getClass().getSimpleName());
ToolRunner.printGenericCommandUsage(System.err);
return -1;
}
// Code here to submit Hadoop Job ...
return 0;
}
/**
* #param args
*/
public static void main(String[] args) throws Exception {
int exitCode = ToolRunner.run(new MyTestDriver(), args);
System.exit(exitCode);
}
}
Stacktrace
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/commons/cli/ParseException at
org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:59) at
org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at
MaxTemperatureDriver.main(MaxTemperatureDriver.java:44) Caused by:
java.lang.ClassNotFoundException:
org.apache.commons.cli.ParseException at
java.net.URLClassLoader$1.run(URLClassLoader.java:202) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:190) at
java.lang.ClassLoader.loadClass(ClassLoader.java:307) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at
java.lang.ClassLoader.loadClass(ClassLoader.java:248) ... 3 more
Are all of Hadoop's dependencies in your Eclipse build path? Make sure all the jars in the hadoop/lib directory are in your build path.
The error means that there was a particular class that was not found. Classes are stored within .jar files. So, you need to check if all the required jar files are available or not. Jar files are searched based on the CLASSPATH variable. If you are using Eclipse as your development environment, please check if the build dependencies are satisfied (you can do this by - right clicking on your project -> configure build path -> add external jar).
Also, if you are not sure which class is missing, you can check the classname (Hadoop is open source, so you can find the class name) and then search the class name in findjar