SEVERE: java.sql.SQLException: Io exception: The Network Adapter could not
Hi Friends,
I am installing Java Addin to ECC 6.0 SR3 on Solaris 5.10(Oracle 10.2).
SCS Addin i have completed.Right now i am facing issue when installing DB Addin Java in phase -->
Java Import--->
08.01.09 00:23:39 com.sap.inst.jload.Jload logStackTrace
SEVERE: java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
I have captured this error in jload.log
As per SAP Note 969660 i have restarted the Listener but still no luck..
Could any one aware of this issue.
Thanks
Siva
9885704611
Hai,
Check the below links, may be helpful.....
http://www.websina.com/bugzero/kb/oracle-connection.html
/thread/498275 [original link is broken]
Regards,
Yoganand.V
Similar Messages
-
Hello all!
First of all, I want to say I read all the answers to this problem that were posted in the past in this forum.
I try to connect from the intranet to an Oracle database, named bc01. The string I use is "jdbc:oracle:thin:@192.168.199.11:1521:bc01". On the 192.168.199.11 machine the listener and oracleservice services are started. The bc01 is correctly added to tnsnames.ora. If I issue a tnsping80 192.168.199.11 from the console it works. However, if I issue the same command from my workstation, it doesn't work (says No listener). So what am I missing here?
Any help is much appreciated !
Thank you very much!Faizan,
Normally this error is reported when the database is either not available or the URL is invalid. Please check the URL whether you have a valid DB connection there.
Also I see the getConnection missing e,g.
Connection conn = ds.getConnection();
regards
Debu
I am trying to setup DataSource for my application and I am using oracle 8.1.6.3 database. I have following entry in the data-sources.xml file
<data-source
class="oracle.jdbc.pool.OracleDataSource"
name="jdbc/pool/OracleDS"
location="jdbc/ConnectionDS"
pooled-location="jdbc/pool/OracleDS"
url="jdbc:oracle:thin:@machine:1521:development"
username="user"
password="password"
min-connections="3"
max-connections="50"
wait-timeout="10"
inactivity-timeout="30"
/>
In my JSP code I am doing following to access the database
ResultSet sqlResultSet = null;
PreparedStatement stm = null;
InitialContext ic = new InitialContext();
DataSource ds = (DataSource)ic.lookup("jdbc/OracleDS");
stm = conn.prepareStatement(updtUser);
I got following exception when I ran teh code
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
Thanks for help
Faizan -
Hello,
I have recently installed Weblogic6.1Sp1 server with Weblogic Intergration 2.1
on solaris 7 and im getting this error when connecting to the database (oracle816.3);
I have changed Oracle drivers and tried many different configurations, with no
luck, Could someone give me some guidance or has anyone encounted this error before.
Thanks
Bobby
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection]
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:323)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:260)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at com.bea.wlpi.rdbmsrealm.RDBMSDelegate.<init>(RDBMSDelegate.java:187)
at com.bea.wlpi.rdbmsrealm.RDBMSDelegate$DFactory.newInstance(RDBMSDelegate.java:1177)
at weblogic.security.utils.Pool.getInstance(Pool.java:57)
at com.bea.wlpi.rdbmsrealm.RDBMSRealm.getDelegate(RDBMSRealm.java:104)
at com.bea.wlpi.rdbmsrealm.RDBMSRealm.getUser(RDBMSRealm.java:145)
at weblogic.security.acl.CachingRealm.getUserEntry(CachingRealm.java:806)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:670)
at weblogic.security.acl.internal.FileRealm.getPrincipalFromAnyRealm(FileRealm.java:1008)
at weblogic.security.acl.internal.FileRealm.ensureRequiredObjectsExist(FileRealm.java:957)
at weblogic.security.acl.internal.FileRealm.loadMembers(FileRealm.java:1202)
at weblogic.security.SecurityService.initializeRealm(SecurityService.java:274)
at weblogic.security.SecurityService.initialize(SecurityService.java:115)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:390)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:202)
at weblogic.Server.main(Server.java:35)Hi. This is definitely an oracle-only problem, so you should simplify the problem
down to a small standalone program using the oracle thin driver to make a connection.
Once you get this to work, weblogic will also be able to do it. Make sure that
when you try to have weblogic succeed after you can do it with oracle code only,
that the driver you used to succeed with, is ahead of any weblogic jars in
the server classpath. Note that we ship a classes12.zip in our packaging, but
Oracle has since released a newer one (with the same name!) that has some bugs
fixed. Make sure the later one is the one the JVM will pick up.
Joe
Bobby wrote:
>
Hello,
I have recently installed Weblogic6.1Sp1 server with Weblogic Intergration 2.1
on solaris 7 and im getting this error when connecting to the database (oracle816.3);
I have changed Oracle drivers and tried many different configurations, with no
luck, Could someone give me some guidance or has anyone encounted this error before.
Thanks
Bobby
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection]
java.sql.SQLException: Io exception: The Network Adapter could not establish the
connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:323)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:260)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at com.bea.wlpi.rdbmsrealm.RDBMSDelegate.<init>(RDBMSDelegate.java:187)
at com.bea.wlpi.rdbmsrealm.RDBMSDelegate$DFactory.newInstance(RDBMSDelegate.java:1177)
at weblogic.security.utils.Pool.getInstance(Pool.java:57)
at com.bea.wlpi.rdbmsrealm.RDBMSRealm.getDelegate(RDBMSRealm.java:104)
at com.bea.wlpi.rdbmsrealm.RDBMSRealm.getUser(RDBMSRealm.java:145)
at weblogic.security.acl.CachingRealm.getUserEntry(CachingRealm.java:806)
at weblogic.security.acl.CachingRealm.getUser(CachingRealm.java:670)
at weblogic.security.acl.internal.FileRealm.getPrincipalFromAnyRealm(FileRealm.java:1008)
at weblogic.security.acl.internal.FileRealm.ensureRequiredObjectsExist(FileRealm.java:957)
at weblogic.security.acl.internal.FileRealm.loadMembers(FileRealm.java:1202)
at weblogic.security.SecurityService.initializeRealm(SecurityService.java:274)
at weblogic.security.SecurityService.initialize(SecurityService.java:115)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:390)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:202)
at weblogic.Server.main(Server.java:35) -
Dear all,
I have been trying to connect to Oracle 8 from Java but without success.
I am using the following driver: oracle.jdbc.driver.OracleDriver
and the thin protocol as follows:
jdbc:oracle:thin:userid/password@databasename:1512:sid
I am getting the error message:
java.sql.SQLException: Io exception: The Network Adapter could not establish th
connection
I am using jdk1.3 with classes12.zip added to the classpath settings.
Can anybody help please.
Regards,
[email protected] or [email protected]
nullDear colleague,
I am using a stand alone database running on my windows 98 laptop.
I connect successfully via sql plus using the user id: scott and password tiger.
Below is the entry of my tnsname.ora:
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
I am finding difficult to specify a host, but I have tried the following combinations:
DriverManager.getConnection ("jdbc:oracle:thin:@koudry:1521:PLSExtProc","scott", "tiger");
where the machine name is koudry and PLSExtProc the sid.
DriverManager.getConnection ("jdbc:oracle:thin:@localhost:1521:PLSExtProc","scott", "tiger");
and also 127.0.0.1 which is the ip address of the localhost. All these give me the following error:
Exception in thread "main" java.sql.SQLException: Io exception: The Network Adap
ter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:323)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:263)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.ja
va: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 web.main(web.java:10)
When I use the oci protocol like:
DriverManager.getConnection ("jdbc:oracle:oci8:@127.0.0.1:1521:PLSExtProc","scott", "tiger");
I get the following error:
Exception in thread "main" java.lang.UnsatisfiedLinkError: make_c_state
at oracle.jdbc.oci8.OCIDBAccess.make_c_state(Native Method)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:233)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:249)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.ja
va:365)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
at java.sql.DriverManager.getConnection(DriverManager.java:517)
at java.sql.DriverManager.getConnection(DriverManager.java:177)
at web.main(web.java:10)
Below is the entry for autoexec.bat:
set classpath=.;c:\oracle\ora81\jdbc\lib\classes12.zip;
mode con codepage prepare=((850) C:\WINDOWS\COMMAND\ega.cpi)
mode con codepage select=850
keyb uk,,C:\WINDOWS\COMMAND\keyboard.sys
SET Path=c:\Oracle\Ora81\lib;c:\Oracle\Ora81\bin;"C:\PROGRAM FILES\ORACLE\JRE\1.1.7\BIN";C:\WINDOWS;C:\WINDOWS\COMMAND;C:\;C:\DOS;C:\JDK1.3\BIN;C:\MSSQL7\BINN;C:\JDK1.3\SRC;
Can anyone see what I am doing wrong.
Thanks,
Richard Koudry
null -
I am using Oracle 9i Server just the
Weblogic 5.1 and also using Oracle 8.1.6 client for weblogic. When I start the weblogic application I am getting the following error message
"java.sql.SQLException: Io exception: The Network Adapter could not establish the co
nnectionOn 10 Feb 2003 09:51:52 -0800, Shankar Viswanathan
<[email protected]> wrote:
I am using Oracle 9i Server just the
Weblogic 5.1 and also using Oracle 8.1.6 client for weblogic. When I start the weblogic application I am getting the following error message
"java.sql.SQLException: Io exception: The Network Adapter could not establish the co
nnection
"You're not providing a lot of information here, but I'll assume a few
things and say...
Ensure the URL param is set properly in the pool def. Check hostname,
port and database/TNS entry. Also, try dbpinging the database with the
following:
java utils.dbping ORACLE <user> <password> <dbname>
substitute the appropriate values where necessary. For example, I have
a TNS def called 'jforum.world' for a particular oracle instance. User
is 'auser' and the password is 'apass'. The following command will
test the connection:
java utils.dbping ORACLE auser apass jforum.world
Alternatively, you can try tnsping, an oracle util, to test the
connectability.
If either of these utils work, then it's probably a typo somewhere in
the pool properties.
Bon -
Does anyone know what this error means?I have already installed Analyzer 6.5 on Win NT, on locally installed Tomcat web server and the oracle 9i database is on a solaris box.I think the problem is it is not able to connect to the oracle repository but I don't know how to fix it. Thanks,Haroon
Joe,
It may happen during testOnReserve, too.
Slava
"Joseph Weinstein" <[email protected]> wrote in message
news:[email protected]..
That means the Oracle URL you supplied to the pool is incorrect forconnecting to the
DBMS you want. If the same pool definition works sometimes and sometimesnot,
then it's an oracle problem with rapid connection requests. Make the poolmake all it's
connections at startup, by setting init=max, and this shouldn't happen.
Joe
Najib wrote:
Hi,
I am using a WebLogic Server 5.1. I created a connection pool to access
Oracle DB 8.1.7. It works fine but some times i have this pb :
Tue Apr 16 08:35:37 GMT 2002:<I> <JDBC Pool> Sleeping increateResource()
SQLException Pool connect failed: weblogic.common.ResourceException:
Could not create pool connection. The DBMS driver exception was:
java.sql.SQLException: Io exception: The Network Adapter could notestablish the connection
atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:210)
atoracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:323)
atoracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:260)
atoracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:365)
atoracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:260)
atweblogic.jdbc.common.internal.ConnectionEnvFactory.makeConnection(Connection
EnvFactory.java:164)
atweblogic.jdbc.common.internal.ConnectionEnvFactory.createResource(Connection
EnvFactory.java:123)
can some one help me please.
thinx. -
hi i am getting this error when after saving the query in query builder
Check if the listener has been started in Database server host machine. First try connecting using SQL Plus and then try the program.
On the db machine, add ORACLE_HOME/bin to PATH and try this cmd
lsnrctl status-- will show if the listener is running or not, also verify if the port is '1521', else change the port in jdbc url to port specified in this o/p
lsnrctl start -- will start the listener
HTH -
I would really happy if someone can help me out about subjected matter
Following is description
O/S : WinXP (Server pack 2)
When I am connected to internet it is working fine. But without internet it is not connecting to database. In "transname.ora" My server = DEDICATED. PROTOCOL = TCP, PORT = 1521
Another problem is when I am changing HOST name from my computer name to 127.0.0.1, it is giving same problem even though it is connected to internet.Thanks for your reply.
When I am using 127.0.0.1, it is not connecting to database. I tried both way, by connecting internet and without connecting internet.
But when I am using computer name, database is connecting only when I am at internet.
1) Exact host name is retechome
2) when I running ipconfig while computer is connected to internet its giving :
Connection-specific DNS Suffix .....: gateway.2wire.net
IP Address...........................................: 192.168.1.68
Subnet Mask........................................: 255.255.255.0
Dafult Gateway.....................................: 192.168.1.256
3) When disconnected from the internet, its giving following msg:
Ethernet adapter Local Area Connection:
Media State.................................: Media disconnected
Just for your information, I tried to use ping when computer is not connected to internet using ping 127.0.0.1 and ping retechome and both sucessfully sent = 4, Received =4, Lost =0 (0% loss)
I would really apreciate your help.
Thanks -
Hi,
I run java application on one Sun Solaris (5.8) server and call Oracle 8.1.6 MTS database on another Sun Solaris (5.8) server.
When I am using jdbc:oracle:thin:@host:port:sid, I got:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection.
So, I changed to jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=hostip)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=databasename)(SERVER=DEDICATED))). It works.
But, when I tested java application with jdbc:oracle:thin:@host:port:sid on other Sun Solaris 5.8 server, using same classes12.zip and connect to same MTS database, all of them worked.
Right now, there is only one Sun server does not work with jdbc:oracle:thin:@host:port:sid format. And on this SUn server, using jdbc:oracle:thin:@host:port:sid format connect to other dedicated Oracle database is fine.
Thanks for your help advance.
PaulThis is going to sound stupid, but have you made sure that the server that couldn't connect resolved the name of the database server correctly? We had some problems with some of our field offices not correctly resolving the IP address for our server when the name was given. I would first try and put the IP address for the server/host name:
jdbc:oracle:thin:@1.1.1.1:port:sid
That's just a thought, hope it works for you. -
actually I changed the hostname for plesk. when I restarted the server then error appears:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
thanks & best regards1) What is "plesk"?
2) java.sql.SQLException implies that you have a Java application using JDBC to connect to the database. That would seem to imply that this has nothing to do with ODBC.
3) When the JDBC driver raises this error, there should be additional information about what particular Oracle error was raised. Do you have that information?
4) Can you connect to the database using a different application? Like SQL*Plus, for example?
5) Taking a wild guess, I'd tend to suspect that you would need to change the host name configured for the client's connection string. That might be in your tnsnames.ora file, it might be in a n application config file, it might be in an application dialog, or that information may have been embedded into the application.
Justin -
Hi,
I know that there are a lot of threads with this error, but I don't know how to solve my situation yet.
I'm trying to access to the database via JDBC, and the driver return the following error:
java.sql.SQLException: IO Error: The Network Adapter could not establish the connection
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:419)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:536)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:228)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
at net.sourceforge.squirrel_sql.fw.sql.SQLDriverManager.getConnection(SQLDriverManager.java:133)
at net.sourceforge.squirrel_sql.client.mainframe.action.OpenConnectionCommand.execute(OpenConnectionCommand.java:97)
at net.sourceforge.squirrel_sql.client.mainframe.action.ConnectToAliasCommand$SheetHandler.run(ConnectToAliasCommand.java:281)
- My oracle database is up and I can access to it with locally with TOAD
- I can do TELNET localhost 1521 in the server that has the DB installed
- I can do a successful ping from the client computer to the oracle server
- There aren't any firewalls between the client and the server.
- When I try to do TELNET <IP Address> 1521 from the client computer to the oracle DB Server, the connection could not be opened
- I tryed to do a TELNET to another port where I have another service, and the result has been successful. So the problem is related with the port 1521...
I don't have any knowledge about database administration, so I don't know what to do to solve this.
Can you help me please?java.sql.SQLException: IO Error: The Network Adapter could not establish the connectionThis preposterous error message is Oracle's way of saying either 'Connection refused' or 'Connection timeout' or 'no route to host' or 'unknown host'. However because of the stupidity of making up their own message instead of giving the original exception, it is impossible to say which. The pretentious wording is also stupid: network adapters don't create connections. TCP/IP stacks do that.
As to your problem, either there is no such host, no route to the host, nothing listening at the IP:port you specified, or there is a firewall in the way. And that includes a possible Windows firewall on the server host itself. -
I get the following error when I try to run a servlet that has
a JNDI data source connection.
http://localhost:8988/context-root/servlet/ServletExample
Servlet Code
InitialContext myInitialContext = new InitialContext();
DataSource myDataSource = (DataSource)
(myInitialContext.lookup("jdbc/OracleCoreDS"));
// connect to the database using the data source
myConnection = myDataSource.getConnection();
// myConnection = getConnection(); STATIC JDBC METHOD BELOW
I have modeified j2ee/home/config/data-sources.xml to
<data-source
class="com.evermind.sql.DriverManagerDataSource"
name="OracleDS"
location="jdbc/OracleCoreDS"
xa-location="jdbc/xa/OracleXADS"
ejb-location="jdbc/OracleDS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="scott"
password="tiger"
url="jdbc:oracle:thin:@bomber:1521:lynx"
inactivity-timeout="30"
/>
When I use the following JDBC connection method everything works fine.
public static Connection getConnection() throws SQLException
String username = "scott";
String password = "tiger";
String thinConn = "jdbc:oracle:thin:@bomber:1521:lynx";
Driver d = new OracleDriver();
Connection conn = DriverManager.getConnection(thinConn,username,password);
conn.setAutoCommit(false);
return conn;
Can somebody help?????Obtain datasource with:
DataSource myDataSource = (DataSource)
myInitialContext.lookup("java:comp/env/jdbc/OracleCoreDS");instead of:
DataSource myDataSource = (DataSource)
(myInitialContext.lookup("jdbc/OracleCoreDS")); -
I recently upgraded from Redhat 9 to Fedora Core 4, and am running an Oracle 9i on this machine.
Since this upgrade, I'm unable to connect from the machine itself to the db, using the JDBC thin driver. This worked on Redhat 9.
I'm also able to connect from any other machine to this db with the JDBC driver.
Also, any ping, tnsping, sqlplus work from localhost and other machines.
Only the JDBC connection from the localhost itself fails, with following exception:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:333)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:404) at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:468)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:314)
at java.sql.DriverManager.getConnection(DriverManager.java:512)
at java.sql.DriverManager.getConnection(DriverManager.java:171)
at Jdbctest.main(Jdbctest.java:97)
*** SQLException caught ***
SQLState: null
Message: Io exception: The Network Adapter could not establish the connection
Error Code: 17002
In following URL - jdbc:oracle:thin:@myserver:1521:mydb - I tried 'localhost', '127.0.0.1', 'dns name', 'ip address', but all fail.
Any ideas would be highly appreciated (I'm searching for days now...)
Thanks in advance,
TimEtherrealTake this with a grain of salt; I know a lot of the theory but don't have much hands on experience...
Not a bad idea, but you need to understand more if it's going to work (it might not). Etherreal and most other sniffers work by capturing traffic at the network interface (NIC) level, this allows the NIC to be switched into "promiscuous" mode and capture all the network traffic "on the wire" in that network segment, even traffic destined for other machines.
You can think of "networking" as an onion, or a stack of layers (see "OSI 7 laye model", Google or http://www.webopedia.com/quick_ref/OSI_Layers.asp for one theoretical approach), and etherreal works at pretty "outside" ot "low" level; the "internal" traffic that your interested in seeing either never gets to the level that Etherreal is monitoring, or is doing so in an area that is parallel to the one you're monitoring.
It's possible that you might be able to configure etherreal to see the "loopback" traffic. I suspect that somewhere, you can specify which network interface is to be monitored, and you can change it to monitor the "local" network interface. If your Linux setup is typical, etherreal is probably monitoring interface "eth0" and you probably want to monitor "lo" to see local traffic.
You can find out what interfaces you have with the command:
ifconfig -a
On the Red Hat Entrerprise that I have, that command is not in the default PATH, but is in /sbin; on other flavors of Unix I know it is found in /usr/sbin
If you can get etherreal monitoring the local interface, you should be able to see the traffic generated by "ping 127.0.0.1"
BTW, that command will also give you raw counts of the number of packets on all interfaces; if you have the machine to yourself, you might try a connection attempt and see which (if any) interfaces have packet numbers increase; if none do, then the connection attempt is failing before it gets to the packet level and Etherreal won't tell you anything. -
Sql exeption: Io exception: The Network Adapter could not establish the connection
when i tried to connect to a oracle server using visual age for java i had this error message:
"java.sql.SQLException: Io exception: The Network Adapter could not establish the connection"
any ideas ...if u r using think jdbc driver then check the Host name/address (IP Address) of the server and the SID and the port number.. there is no other reason for this.
Sometimes.. when the database is behind the firewall and the ports/IP is not open then due to denial of access this error occurs.
HTH.
Rajeev -
SQL error: Io exception: The Network Adapter could not establish the connec
Hi,
I am sure this question has been asked a million times and maybe i haven't searched the forum enough.
But here's the situation. I haven't used oracle too much. So I am not too familiar with data-source and what not..
I downloaded the latest version of oc4j(standalone) a few days back. I am trying to get the Oc4j j2eehome/demo/ormap to work .
I deployed the application manually by editing server.xml and http-web-site.xml files...
But i get this error
SQL error: Io exception: The Network Adapter could not establish the connection
I have no clue what that is..
I know its got to do with the bean not connecting to the Database. Do i need to download the oracle database server too.. The documentation says something about the cloudscape database.. Well basically i am lost..
Any information will be very helpful.
regards
-amitHi Amit --
This exception means that the container can't connect to the database instance to which it has been directed to use.
If you are using the ormap demo, then this is an entity bean based sample and will need a database.
The database configurations are stored at the server level in the j2ee/home/config/data-sources.xml file. In this file you will see entries that define a datasource using a set of "locations", provides details on where the database instance (host, port, sid) and what the logon details are.
For the container, a default-data-source is defined (ie one to use if no others are supplied) in the j2ee/home/config/application.xml.
<orion-application autocreate-tables="false"
default-data-source="jdbc/OracleDS">
To make it work simply, make sure that you have a datasource named jdbc/OracleDS defined in the data-sources.xml file (which should be there as a template) and that the connection details for it point to a valid database instance and user.
cheers
-steve-
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