Help : Cluster Fail over Test - Could not establish a connection

Hi All
          I'm trying to do Cluster fail over test with two Weblogic 8.1 sp2 instances in cluster.
          During that testing, I'm restarting the one of the instance which is handing my request, to make sure the session is replicated smoothly to the other instance,so that can continue accessing my application without any interuption. But when I restart the instance, I'm getting following exception
          Error 500--Internal Server Error
          java.rmi.ConnectException: Could not establish a connection with 8909815174098071019S:dappsn03:[8201,8201,-1,-1,8201,-1,-1,0,0]:dappsn03-04:TNL:tnl1_81dappsn03, java.rmi.ConnectException: Destination unreachable; nested exception is:
               java.net.ConnectException: Connection refused; No available router to destination
               at weblogic.rjvm.RJVMImpl.getOutputStream(RJVMImpl.java:316)
               at weblogic.rjvm.RJVMImpl.getRequestStream(RJVMImpl.java:488)
               at weblogic.rjvm.RJVMImpl.getOutboundRequest(RJVMImpl.java:584)
               at weblogic.rmi.internal.BasicRemoteRef.getOutboundRequest(BasicRemoteRef.java:91)
               at weblogic.rmi.internal.activation.ActivatableRemoteRef.invoke(ActivatableRemoteRef.java:69)
               at com.sns.pfk.ejb.PfkSessionBean_mz6mqm_EOImpl_812_WLStub.getPortalRecord(Unknown Source)
               at com.sns.pfk.servlet.PfkMainServlet.getInfofromSB(Unknown Source)
               at com.sns.pfk.servlet.PfkMainServlet.doActionDisplay(Unknown Source)
               at com.sns.pfk.servlet.PfkMainServlet.doGet(Unknown Source)
               at com.sns.pfk.servlet.PfkMainServlet.doPost(Unknown Source)
               at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
               at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
               at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
               at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
               at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
               at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:607)
               at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:400)
               at com.sns.ana.ui.servlet.AuthorisationBaseServlet.service(AuthorisationBaseServlet.java:109)
               at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
               at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
               at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
               at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
               at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
               at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
               at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
               at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
               at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
               at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
               at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
          Buddies, anyone hit this issue before, pls show up some light to escape this hickup.
          With Regs
          -SHAN

Hi,
          Thanx for ones, spend time on reading this thread.This problem was due to some missing entries in weblogic-ejb.xml. This got fixed as we got support from BEA.
          With Regs
          -SHAN

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Network adapter could not establish the connection oracle 11g

Hi All,
I Have oracle 11g database in remote system.When I am trying to access through my Oracle Jdeveloper in my system,I am getting this error:
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I also checked the ipaddress and listener status by giving lsnrctl status and service in remote system.Both are running.
What Should I do now?
Thanks in advance

902286 wrote:
Hi All,
I Have oracle 11g database in remote system.When I am trying to access through my Oracle Jdeveloper in my system,I am getting this error:
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I also checked the ipaddress and listener status by giving lsnrctl status and service in remote system.Both are running.
What Should I do now?
Thanks in advance
For starters, you make sure that there is even the possibility of a network connection between your client machine and the machine hosting the "remote system". What happens when, on the client machine, you issue a 'ping <ip address of remote system>'?

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Hi iam new to sql developer
When Ever i try to connect databse which is placed on server
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Hii
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Hi, I'm running the following setup:
Mac OS X 10.8.4
Virtual Box 4.2.16 r86992
Oracle Developer Days (don't know the version, just downloaded it)
SQL Developer 3.2.20.09
Networking is host-only, I tried bridged but that doesn't make a difference for the problem at hand. I can ping my virtual box just fine, telnet to port 1521 looks good too:
$ ping 192.168.56.101
PING 192.168.56.101 (192.168.56.101): 56 data bytes
64 bytes from 192.168.56.101: icmp_seq=0 ttl=64 time=0.449 ms
^C
--- 192.168.56.101 ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 0.449/0.449/0.449/0.000 ms
$ telnet 192.168.56.101 1521
Trying 192.168.56.101...
Connected to 192.168.56.101.
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asdf
asdf
Connection closed by foreign host.
When I create a new connection with sql developer, with the same hostname / IP (192.168.56.101), Port 1521 (didn't change that) and SID orcl, basic connection type, it can't even connect, throwing the error mentioned in the subject:
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I have looked at various threads in the forums here but I'm still stymied why the connection seems to be ok, yet sql developer has problems with it. If I create an ssh tunnel so sql developer only has to connect to localhost it works:
ssh -L 1521:192.168.56.101:1521 -l oracle 192.168.56.101
Message was edited by: 2a2e67cd-b5b2-4229-9fa6-21f5dfe0760d

Hi Ali,
This may be of varoius reasons..
Is the database that you are connecting on the same PC?
You have specified Hostname: localhost.
If not please replace it with the IP of that server.
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Check the SID by tnsping command.
Hope this will help you..
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Ashok

Jdbc. The Network Adapter could not establish the connection. Help Please!!

I've found several responses over this issue, but none works for me.
I'm trying to setup a simple jdbc connection from a simple program.
Platform:
Fedora Core 4 (FC4) on AMD 64 bits
Java 1.4.2_04 (64 bits)
ORacle 10g or Oracle 9.2.0.4 (none works);
Tips:
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- Also try jdbc:oracle:thin:user/name@//host:port/sid
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I've monitored ip traffic on remote computer. While using TNSPING I detect activity. While using jdbc, no.
Please, any idea??

Thanks for your reply.
To your questions:
- I´v tried both IP, host, and even host.domain
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- I can´t connect via jdbc.
Folowing:
A) my sample code
B) the stack trace
C) the listener status (from my 9i server. Also tryied another servr with 10g)
when I call this program, I´ve tried severl connection strings:
jdbc:oracle:thin:user/pass@sdd51:1521:ebf
jdbc:oracle:thin:user/pass@:sdd51.sdd.com.ar:1521:ebf
jdbc:oracle:thin:user/pass@:10.10.10.51:1521:ebf
also try the other sintax:
jdbc:oracle:thin:user/pass@//sdd51:1521/ebf
In the classpath, I´tryied:
clasess12.jar
ojdbc14.jar
nls_charset12.jar
thanks
A)=================================================
// Import the JDBC classes
import java.sql.*;
import oracle.jdbc.pool.OracleDataSource;
import java.io.*;
import java.util.*;
public class test
// The query we will execute
static final String query = "select 'Hello JDBC: ' || sysdate from dual";
// The connection to the database
static Connection conn;
// Create the User Interface
static public void main (String args[])
try {
String connect_string = args[0];
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OracleDataSource ods = new OracleDataSource();
ods.setURL(connect_string);
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     System.out.println ("Connected\n");
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     System.out.println ("done.\n");
catch (Exception e)
e.printStackTrace();
     // Oops
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B)=================================================
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:114)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:156)
     at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:269)
     at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:212)
     at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
     at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
     at java.sql.DriverManager.getConnection(DriverManager.java:512)
     at java.sql.DriverManager.getConnection(DriverManager.java:171)
     at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:102)
     at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:85)
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C)=================================================
LSNRCTL for Linux: Version 9.2.0.1.0 - Production on 30-JAN-2006 17:39:59
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(PORT=1521))
STATUS of the LISTENER
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.1.0 - Production
Start Date 24-JAN-2006 11:16:18
Uptime 6 days 6 hr. 23 min. 40 sec
Trace Level off
Security OFF
SNMP OFF
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(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=sdd51.sdd.com.ar)(PORT=1521)))
Services Summary...
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Instance "ebf", status READY, has 1 handler(s) for this service...
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THE NETWORK ADAPTOR COULD NOT ESTABLISH THE CONNECTION error, pls help me

I download sql developer and when i want to add a new connection and fiil in the blacnks than i click test button i got the "THE NETWORK ADAPTOR COULD NOT ESTABLISH THE CONNECTION" ERROR , what should i do?
should i download 10g or 11g to use sql developer????
thanks.

Without knowing what exactly you entered, I would guess that what you filled in wasn't exactly correct. Do you have an Oracle client already installed on your computer? If so, verify that what you filled in on the new connection matches the information for that DB in your TNSNAMES file (tnsping will report the server and port if you can't find the TNSNAMES file).
theFurryOne

Network adapter could not establish the connection

Hi,
Iam new to using Oracle please help me in this problem. Iam trying to connect oracle8i in my home pc(win 98) in java.. I have said..
String url="jdbc:oracle:thin:@testhost:1521:sid";
DriverManager.getConnection(url,"scott","tiger");
Actually i have added the service name using Oracle Net 8 Assistant ... it asked me service name so i gaved "fobjects". then host and port number then i gave "testhost" and port number as 1521. then i tried to use the test service but i couldnt get it... it gaved me error called " ORA12545- Connect failed because target host or obejct doe not exist ..Even then i pressed finished button to accomplish the thing...ans when i executed the java program with the above service name setup it said SO Excpetion : Network adapter could not establish the connection.
Well What the wrong i have done, help me...
Regards
Lensi.

hi,
I think you have to register the driver first. pls try the following program...
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
* This class tests the environment to check if JDBC is configured and
* connection to database is possible thru JDBC. Uses THIN driver to connect.
public class JDBCCheck {
public JDBCCheck() { }
private Connection conn = null;
private final int NO_DRIVER = 1;
private final int INVALID_URL = 17002;
private final int INVALID_CREDENTIALS = 1017;
private final int NULL_URL = 2;
private final int DATABASE_DOWN = 1034;
public static void main(String[] args) {
JDBCCheck check = new JDBCCheck();
check.dbconnect();
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if(loadDriver())
if(connect())
doSomething();
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boolean loadeddriver = false;
String jdbcDriver = System.getProperty("jdbc.driver.class");
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Class.forName(jdbcDriver);
log("Loaded JDBC Driver ");
loadeddriver = true;
} catch (ClassNotFoundException noclassEx) {
error(NO_DRIVER,noclassEx);
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boolean connected = false;
String jdbcURL = System.getProperty("jdbc.url");
String username = System.getProperty("jdbc.username");
String password = System.getProperty("jdbc.password");
if(username == null || password== null) {
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password = "tiger";
if(jdbcURL == null) error(NULL_URL,new Exception(" jdbc.url cannot be null "));
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error(sqlEx.getErrorCode(),sqlEx);
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ResultSet rset = null;
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nlsjarname+">;%CLASSPATH%;");
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System.out.println(" $export CLASSPATH");
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System.out.println("Error: Invalid username/password was specified ");
System.out.println("Try connecting to the database thru SQL Plus using the same username/password");
} else if (errcode == DATABASE_DOWN ) {
System.out.println("Error: The Database you are tying to Connect is down ");
System.out.println(" Start the Database and then try to connect ");
} else {
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System.exit(0);
while running thig pgm, you should pass the driver URL..
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Some information showing:
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Hi experts,
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user571093 wrote:
Hi experts,
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I, too, am running Oracle Developer Days inside VirtualBox.
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(C) Copyright 1985-2001 Microsoft Corp.
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Hi all,
I appreciate if anyone could help me out with my issue. I wrote simple java code on win 2000 to test whether I will be able to access Oracle 8i DB resided at some xxx.xxx.xxx.xxx machine within the network.
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at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:211)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:324)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:266)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at DBConn.getConn(DBConn.java:15)
at DBConn.main(DBConn.java:40)
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Thanks,
cs

I am sorry guys, I was using the port number as 1526, where I need to use 1521...

Help : Cluster Fail over Test - Could not establish a connection

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