APEXExport - jdbc connection syntax?
Hi guys,
I have an 11g instance which was host to our information repository for our database estate, due to a string of problems, the web front end is dead in the water. Anyway I've stumbled upon this APEXExport utility and I'm slightly confused on how the JDBC connect string should be built, i'd like to export the application and import it into development environment as there are some forward fixes in this application that I didn't mirror in dev (naughty naughty), here's the environment :-
DB 11g (11.1.0.7)
APEX v3
Gateway EPG
OS HP-UX IA64
As per the readme in utilities/ I've set my CLASSPATH, but slightly different to one in the readme for 11g:
$ echo $CLASS_PATH
/opt/[server]/apps/oracle/product/11.1.0/oui/jlib/classes12.jar
I don't know if the above is correct but it's the only classes12.jar I could find under 11g.
Where I fall down is the -db parameter in the readme the example for an application by ID is
APEXExport -db candy.us.oracle.com:1521:ORCL -user scott -password tiger -applicationid 31500
Am I reading that correctly as: SERVER.us.oracle.com:LISTENER_PORT:SID ??
This is the parameter I gave it, as I understand it;
java oracle.apex.APEXExport -db c06bpm01.[subdomain].[domain].com:1525:[sid] -user system -password [password] -applicationid 103
It errors out with the first line being, so I'm pretty sure my connection string is duff:-
Exception in thread "main" java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
Have I misread the readme? Or is there something else I need to setup for JDBC to connect into the instance.
Thanks in advance,
Tony
Edited by: beaneh on Jun 16, 2010 11:40 AM
Hi Martin,
I've set the CLASSPATH to the file you suggested, it now returns this error;
Exception in thread "main" java.lang.NoClassDefFoundError: oracle/apex/APEXExport
Any thoughts?
Cheers,
Tony
$ export CLASSPATH=/opt/[]/apps/oracle/product/11.1.0/jdbc/lib/ojdbc5.jar
$ ls -l $CLASSPATH
-rw-r--r-- 1 oracle dba 1890319 Sep 22 2008 /opt/[]/apps/oracle/product/11.1.0/jdbc/lib/ojdbc5.jar
Edited by: beaneh on Jun 16, 2010 2:23 PM
Edited by: beaneh on Jun 16, 2010 2:23 PM
Similar Messages
-
Hi All,
Happy new year :)
I have a query in jdbc. I have a oracle 9i database which i want to connect to from java applet.
I have installed the jdbc files and included the path in classlibrary.
The directory structure is as mentioned.
<Root directory>
|-oracle
|-jdbc
|-connector
|-driver
|-internal
|-oci
|-oracore
|-pool
|-rowset
|-util
|-xa
There are also many other directories created, but i am mentioning only the oracle driver jdbc directories.please let me know if any other directory files are also required.
I have written the following applet code.
The code tries to load the oracle driver and try to get a connection to oracle database.
The class.forName() syntax does not give error. However the
Connection conn = DriverManager.getConnection() syntax gives SQLException error.
The url connection string is "jdbc:oracle:dnldthin:@192.0.0.89:1521:oraodbc";
192.0.0.89 is the host ip address
oraodbc is the system dsn created.
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import javax.swing.*;
import javax.swing.event.*;
import java.sql.*;
import javax.sql.*;
import java.lang.Class.*;
public class AppletODBC extends JApplet
public void init()
s="10";
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
url = "jdbc:oracle:dnldthin:@192.0.0.89:1521:oraodbc";
Connection conn = DriverManager.getConnection(url,"scott","tiger") ;
}catch(ClassNotFoundException e)
s="0";
catch (SQLException e){
s="8";
hourField = new JTextField(s,10);
npanel = new JPanel();
npanel.add(hourField);
this.setLayout (new BorderLayout());
add(npanel, BorderLayout.NORTH);
public JTextField hourField;
JPanel npanel, spanel, mpanel;
public String s, url;
public Connection conn;
public Statement stmt;
public ResultSet rs;
My guess is that either
1) the jdbc files have not got installed properly
2) i am using the wrong connection syntax.
3) the connection url string is incorrect.
Kindly guide me with my query.
Thanks & Regards,
Amit .jdbc:oracle:dnldthin:@192.0.0.89:1521:oraodbc";
{code}
Even if i mention thin instead of dnldthin in the code it is giving the same error in java console.
the "oraodbc" is the system dsn name. Should i mentioned the system dsn name or should there be some other information. -
Hi All,
I hope someone will help me.
I am trying to connect to Oracle 8i using the JDBC "thin" driver on Windows 2000 prof. The program is compiled successfully but got error "ClassNotFoundException: Unable to find class oracle.jdbc.driver.OracleDriver" when try to run. Please see code below for your review:
import java.io.*;
import java.sql.*;
import java.net.*;
import java.lang.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class emp extends HttpServlet
public void doGet(
HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
res.setContentType("Text/html");
PrintWriter out = res.getWriter();
out.println("<HTML>");
out.println("<TITLE>Simple Emp Details</TITLE>");
out.println("<BODY BGCOLOR=\"#FFFFFF\">");
out.println("<CENTER><B>Employees</B></CENTER>");
out.println("<BR>");
Connection conn = null;
try
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection("jdbc:oracle:thin:@satya:1521:satya", "scott", "tiger");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT ENAME, JOB FROM EMP");
while(rs.next())
out.println("<BR>");
out.println(rs.getString("ENAME") + " - " + rs.getString("JOB"));
out.println("<BR>");
out.println();
catch(SQLException ex)
out.println("SQL EXception: " + ex.getMessage() + "<BR>");
while((ex = ex.getNextException()) != null)
out.println(ex.getMessage() + "<BR>");
catch(ClassNotFoundException clsex)
out.println("ClassNotFoundException: " + clsex.getMessage() + "<BR>");
finally
if(conn != null)
try
conn.close();
catch(Exception ignored) {}
out.println("</BODY></HTML>");
Can you please also give me precise syntax and explanation for DriverManager.getConnection i.e. DriverManager.getConnection("jdbc:oracle:thin:@satya:1521:satya", "scott", "tiger");
Many thanks in advance for your great cooperation,
SatyaThe error is caused by the runrime VM not finding the Oracle JDBC driver. You need to make sure that the file containing the driver (usually classes12.zip) is in the classpath of your application server. Check the doco that comes with your app server to learn how to set this up.
For info about the parameters to getConnection() for Oracle see the Oracle JDBC developers guide and reference.
http://otn.oracle.com/docs/products/oracle8i/doc_library/817_doc/java.817/a83724/basic1.htm#1000881
Since you appear to be using a J2EE app server you'll probably want to use the JDBC connection pooling it supplies rather than DriverManager.getConnection(). Check out the doco that comes with your app server and read the section about DataSource here http://developer.java.sun.com/developer/Books/JDBCTutorial/index.html -
MSSQLServer jdbc connect problem on ODI 11G R2
I have a MS SQL Server jdbc connect problem on ODI 11G R2 / Windows server 2008 64 bits.
Tried, one by one, all versions of Microsoft drivers.
Sqljdbc4.jar copied to : %appdata%\odi\oracledi\userlib\
The Topology connect syntax is :
driver: com.microsoft.sqlserver.jdbc.SQLServerDriver
URL : jdbc:sqlserver://<host>:1433
=> All the topology tests end with time-outs.
Installed 10G ODI.
Works with 1.4 java and sqljdbc.jar version 2 jdbc driver.
Times out with version 3 and/or Sqljdbc4.jar + JAVA_HOME & ODI_JAVA_HOME set to 1.6 path.
also tried, with no success (time-outs) on either 10g or 11g :
com.inet.tds.TdsDriver
jdbc:inetdae7://<host>:1433?database=<DB>
same results for :
net.sourceforge.jtds.jdbc.Driver
jdbc:jtds:sqlserver://<host>:1433
Any suggestions for a fix?
Many thanks in advance.Hello,
ODI (11g) Studio is certified on Windows 32 bit only, not on 64bit.
However you may still install it and configure ODI Studio to run with a 32 bit java.
Details pls see Master Note For ODI 11g Install Issues And Questions (Doc ID 1214428.1).
To connect to SQL Server:
# Check and make sure the authentication mode of your Microsoft SQL Server Server is set to "SQL Server and Windows" or "Mixed", otherwise Oracle Data Integrator (ODI) is unable to connect to the database.
# Before you create the Oracle Data Integrator (ODI) Dataserver in Topology Manager > Physical Architecture, stop all ODI processes, and place the JDBC Driver file in the ODI's userlib and "/drivers" folder.
For ODI Studio (Local No Agent)
%APPDATA%\odi\oracledi\userlib
%APPDATA% is the Windows Application Data directory for the user (usually C:\Documents and Settings\<user>\Application Data).
Standalone Agent
ODI_HOME\oracledi\agent\drivers
Note: If you decide to use the DataDirect driver that comes with ODI 11g install/ embedded in ODI 11g
weblogic.jdbc.sqlserver.SQLServerDriver
Then you don't need to worry about this step.
# Make sure that the database is the default database of the user account employed by ODI for connection, and that the password is correct.
# Verify (in your Microsoft SQL Server Server network configuration) that TCP/IP has been enabled on port 1433.
For more details see How To Set Up JDBC Driver Connections For The Microsoft SQL Server For ODI (Doc ID 423914.1)
If you try sqljdbc.jar, you need to configure ODI_JAVA_HOME to jdk1.5
sqljdbc4.jar, jdk1.6 (since ODI 11g requires jdk1.6, I'd suggest sqljdbc4.jar)
More see Compatibility Matrix For Java Machines And JDBC Drivers Used With ODI (Doc ID 807235.1)
Hope that helps other people who run into this,
Edited by: user742480 on Apr 4, 2011 12:06 PM -
Welogic 9.2 jdbc connection pool monitoring section not displaying server
Welogic 9.2 managed jdbc connection pool monitoring section not displaying server name. Can you please let me know how can i achive this
Hi,
It happens if the Connectivity is Lost b/w DataBase & WLS Server...In that case in the WLS AdminConsole---DataSource---Monitoring Tab you wont see even the Testing Page with valid datasource to test it.
So please make sure that the N/W connectivity proper....One more thing you can try:
<h3><font color=red>Test-1</font></h3>
You can use *“weblogic.Admin”* utility to Enable and Disable the Pool (DataSource) Just to Confirm whether the dataSource is actually active or not::
Step1). run *"setWLSEnv.sh"* first in the same Shell prompt....then do the following:
Step2). To suspend:
java weblogic.Admin -url t3://localhost:7001 -username weblogic -password weblogic SUSPEND_POOL YourDataSourceName
Step3). To re-enable:
java weblogic.Admin -url t3://localhost:7001 -username weblogic -password weblogic RESUME_POOL YourDataSourceName
To test whether you are getting any Exception or Error while doing this....If yes u are getting any Error or exception then It means there May be some Database connectivity issue...
<h3><font color=red>Test-2</font></h3>
Please use the following Utility to Test the Database connectivity from your WLS Server box:
<font color=maroon>
java -classpath /opt/app/bea/weblogic92mp2/weblogic92/server/lib/weblogic.jar -Dbea.home=/opt/app/bea/weblogic92mp2 utils.dbping ORACLE_THIN DbUserName DBPassword somethingDbUrl.Something.net:1521:dbInstance
</font>
Syntax:
java -classpath /opt/app/bea/weblogic92mp2/weblogic92/server/lib/weblogic.jar -Dbea.home=/opt/app/bea/weblogic92mp2 utils.dbping ORACLE_THIN <DBUserName> <DBPassword> <DBURL>
The above utilty will test the DB Connectivity ...you need to run it from your WLS server Box...
<h3><font color=red>Another Simple Alternative of Test-2</font></h3>
http://jaysensharma.wordpress.com/2010/03/23/testing-datasource-status-using-wlst/
Thanks
Jay SenSharma
http://jaysensharma.wordpress.com (WebLogic Wonders Are Here) -
Error: [SQLServer JDBC Driver]Syntax error at token 0, line 0 offset 0
Hi:
I´m working with system driver at de JDBC connection in VA. When a record is inserted/updated this error is display:
NWMss SQLServer JDBC Driver Syntax error at token 0, line 0 offset 0
The record is inserted/updated but when the operation ends the exception is throw.
I Google the error but I didn´t find how to solve it.
Any idea?
Thanks a lot for your time on this post.
Rocío.Hi,
Rocío Lorena Suárez wrote:
NWMss SQLServer JDBC Driver Syntax error at token 0, line 0 offset 0
I think that you may be trying to construct an SQL query using some logic. Is that right?
I hav encountered this problem when trying these types of code - If possible please debug the code and see if there is any particular case in which the SQL string in which the command is saved becomes null.
When it is null or blank - the SQL Driver will throw such an error.
Also, if you can elaborate more on the problem - I can give you some more help.
Thanks.
p256960 -
CR4E - JDBC Connection Properties - How do I set GenericJDBCDriver to Yes
Hi,
I need to setup my JDBC connection in CR4E like I would in my CRConfig.xml
For example, I need to add this to my connection properties:
<GenericJDBCDriver>
<Option>Yes</Option>
<DatabaseStructure>catalogs,schemas,tables</DatabaseStructure>
<StoredProcType>Standard</StoredProcType>
<LogonStyle>SQLServer</LogonStyle>
</GenericJDBCDriver>
Without setting these properties for my JDBC connection things do not work. I guess I need to use the Optional properites, but I do not know what the syntax would be for what I want.
Please help.
Thanks,
NickPlease find below an example of setting the JDBC tags for Ms Sql 2000 (sp4)
<JDBC>
<CacheRowSetSize>100</CacheRowSetSize>
<JDBCURL>jdbc:microsoft:sqlserver://vm-5akouassiwk2:1433</JDBCURL>
<JDBCClassName>com.microsoft.jdbc.sqlserver.SQLServerDriver</JDBCClassName>
<JDBCUserName>sa</JDBCUserName>
<JNDIURL></JNDIURL>
<JNDIConnectionFactory></JNDIConnectionFactory>
<JNDIInitContext>/</JNDIInitContext>
<JNDIUserName>weblogic</JNDIUserName>
<GenericJDBCDriver>
<Option>No</Option>
<DatabaseStructure>catalogs,tables</DatabaseStructure>
<StoredProcType>Standard</StoredProcType>
<LogonStyle>SQLServer</LogonStyle>
</GenericJDBCDriver>
</JDBC> -
Error while creating a report that uses Oracle OCI JDBC connectivity
Please let me know why my CR and LF characters are removed from my forum posting *****
Hi,
I was trying to create a report that uses Oracle OCI JDBC connectivity. I am using Eclipse3.4 download from "cr4e-all-in-one-win_2.0.2.zip". I have successfully created a JDBC OCI connection.
The connection parameters are given below:
URL: jdbc:oracle:oci8:@xe
Database: xe
username: <userName>
password: <password>
I have tested the above connection in Data source Explorer and it works fine!!!
But I am getting the following error when I drag-and-drop a table from the list of tables. Not sure what I am missing here? Any help is highly appreciated.
com.businessobjects.reports.jdbinterface.common.DBException: InvalidURLOrClassName
at com.crystaldecisions.reports.queryengine.driverImpl.jdbc.JDBCConnection.Open(Unknown Source)
at com.crystaldecisions.reports.queryengine.JDBConnectionWrapper.Open(SourceFile:123)
at com.crystaldecisions.reports.queryengine.Connection.br(SourceFile:1771)
at com.crystaldecisions.reports.queryengine.Connection.bs(SourceFile:491)
at com.crystaldecisions.reports.queryengine.Connection.t1(SourceFile:2979)
at com.crystaldecisions.reports.queryengine.Table.u7(SourceFile:2408)
at com.crystaldecisions.reports.dataengine.datafoundation.AddDatabaseTableCommand.new(SourceFile:529)
at com.crystaldecisions.reports.common.CommandManager.a(SourceFile:71)
at com.crystaldecisions.reports.common.Document.a(SourceFile:203)
at com.businessobjects.reports.sdk.requesthandler.f.a(SourceFile:175)
at com.businessobjects.reports.sdk.requesthandler.DatabaseRequestHandler.byte(SourceFile:1079)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.do(SourceFile:1163)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.if(SourceFile:657)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter.a(SourceFile:163)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.a(SourceFile:525)
at com.businessobjects.reports.sdk.JRCCommunicationAdapter$2.call(SourceFile:523)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at com.businessobjects.crystalreports.designer.core.util.thread.ExecutorWithIdleProcessing$3.doWork(ExecutorWithIdleProcessing.java:182)
at com.businessobjects.crystalreports.designer.core.util.thread.AbstractCancellableRunnable.run(AbstractCancellableRunnable.java:69)
at com.businessobjects.crystalreports.designer.core.util.thread.PriorityTask.run(PriorityTask.java:75)
at com.businessobjects.crystalreports.designer.core.util.thread.PriorityCompoundCancellableRunnable.runSubtask(PriorityCompoundCancellableRunnable.java:187)
at com.businessobjects.crystalreports.designer.core.util.thread.PriorityProgressAwareRunnable.runSubtask(PriorityProgressAwareRunnable.java:90)
at com.businessobjects.crystalreports.designer.core.util.thread.PriorityCompoundCancellableRunnable.doWork(PriorityCompoundCancellableRunnable.java:144)
at com.businessobjects.crystalreports.designer.core.util.thread.AbstractCancellableRunnable.run(AbstractCancellableRunnable.java:69)
at com.businessobjects.crystalreports.designer.core.util.thread.ExecutorWithIdleProcessing$IdleTask.run(ExecutorWithIdleProcessing.java:320)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Thanks
Karthik
Edited by: KARTHIK1 on Oct 14, 2009 9:38 PMHi Ted,
Thanks for the feedback. I was able to create a report in Creystal Reports Designer 2008 using OCI. It is not allowing only in the Eclipse plugin. In our environment we are not allowed to user Oracle thin connections and ONLY OCI is allowed.
1) Can you please let me know if there is a way to do this?
2) Will it allow data sources using native database driver?
3) If so, can I use JRC to create these reports from a desktop java program?
Thanks & Regards
Karthik
Edited by: KARTHIK1 on Oct 15, 2009 4:38 PM -
Issue JDBC connection pool with Glassfish 3.1.2.2 and Oracle XE 11gR2
Hello,
I am experiencing an issue with pinging a JDBC connection Pool.
I installed the following without any warnings or errors:
Operating System: Oracle Enterprise Linux 5
Oracle XE 11gR2 (11.2.0.2.0) database
Glassfish 3.1.2.2
I will refer to the steps I did after the installations
1) In the .profile file of the OS I add the following:
JRE_HOME=/usr/java/jre1.6.0_31; export JRE_HOME
JAVA_HOME=/usr/java/jdk1.6.0_31; export JAVA_HOME
GLASSFISH_DIR=/u01/glassfish3
GLASSFISH_HOME=/u01/glassfish3/glassfish
DERBY_HOME=$GLASSFISH_DIR/javadb
OPEN_MQ_HOME=$GLASSFISH_DIR/mq
PATH=:$JAVA_HOME/bin:$JRE_HOME/bin:$PATH:$HOME/bin:$GLASSFISH_HOME/bin:$DERBY_HOME/bin:$OPEN_MQ_HOME/bin
export GLASSFISH_HOME
export DERBY_HOME
export OPEN_MQ_HOME
export PATH
LD_LIBRARY_PATH=/u01/app/oracle/product/11.2.0/xe/lib; export LD_LIBRARY_PATH
. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh
2) I copied the ojdbc6.jar to the $GLASSFISH_HOME/domains/domain1/lib
3) I login to the Glassfish admin console and created a new JDBC Connection Pool.
Pool Name: ds_orasys
Resource Type: javax.sql.DataSource
Datasource Classname: oracle.jdbc.pool.OracleDataSource
User: [myschema]
Password: [myschema password]
URL: jdbc:oracle:thin:@localhost:1521:xe
When I ping the connection pool I get the following message in the server log:
[#|2012-10-23T12:14:37.069+0300|WARNING|glassfish3.1.2|javax.enterprise.resource.resourceadapter.com.sun.enterprise.connectors.service|_ThreadID=22;_ThreadName=Thread-2;|RAR8054: Exception while creating an unpooled [test] connection for pool [ ds_orasys ], Connection could not be allocated because: Invalid Oracle URL specified|#]
[#|2012-10-23T12:14:37.071+0300|SEVERE|glassfish3.1.2|org.glassfish.admingui|_ThreadID=19;_ThreadName=Thread-2;|RestResponse.getResponse() gives FAILURE. endpoint = 'http://212.205.62.217:4848/management/domain/resources/ping-connection-pool.json'; attrs = '{id=ds_orasys}'|#]
I tried to use different jar files. I used ojdbc6dms.jar and ojdbc14.jar.
I also copied the jar files in the $GLASSFISH_HOME/domains/domain1/lib/ext directory as some people suggested. Still no luck. I keep getting the same error messages in the server.log
Can anybody help me out or point me to the right direction.
Thank you in advanceThe error is in the URL. It was in front of my eyes and I couldn't see the error. I skipped the ':' before the '@' when I created the pool. It is working fine now.
-
JDBC Connection pool recovery after DB server restart
I am finding that Kodo is throwing the following exception after I restart
my database server (mysql). I am doing the database server restart while my
application server is idle, so it is not during a transaction.
Communication link failure: java.net.SocketException [code=0;state=08S01]
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper:
This is presumably due to the JDBC connection pooling. Is there a
configuration setting that allows Kodo to detect such failures and reconnect
to the database server without exposing this problem to the application
code? For example, WebLogic Server's JDBC connection pool has a setting that
enables testing a connection and recovering from such failures before
allocating it from the pool.
BenThis is presumably due to the JDBC connection pooling. Is there a
configuration setting that allows Kodo to detect such failures and reconnect
to the database server without exposing this problem to the application
code?Not right now. You can log an enhancement request with our bug database:
http://bugzilla.solarmetric.com/ -
JDBC connection pool failures when used by JMS stores
We are using WebLogic 6.1 sp2. We defined a separate connection pool for use by
a JMS Store.
<JDBCConnectionPool Name="sybaseJMSPool"
Targets="cluster00"
InitialCapacity="2"
MaxCapacity="10"
DriverName="com.sybase.jdbc2.jdbc.SybDriver"
Properties="[email protected]@;[email protected]@;charset=utf8"
URL="jdbc:sybase:Tds:@jms.db.host@/@jms.db.name@"/>
(note that the @xxx@ string are replaced by actual values).
We are using Sybase Jconnect 5.5 to a Sybase ASE 12.5 database.
We deployed this configuration on a number of environments (testing, staging,
..). The actual hardware and network configuration is different for the different
system, but the WebLogic domain stays the same regarding this issue.
On the test system we frequently get the following exceptions:
<Aug 13, 2002 1:56:04 PM CEST> <Alert> <JMS> <www00-test> <node00>
<ExecuteThread: '6' for queue: 'JMS.TimerClientPool'> <> <> <040048>
<JMSServer "JMSServer00", store failure while writing message for topic
OrderChangeTopic, java.io.IOException: JMS JDBC store, connection pool =
<sybaseJMSPool>, prefix = <JMS00>: write failed
java.sql.SQLException: JZ006: Caught IOException:
com.sybase.jdbc2.jdbc.SybConnectionDeadException: JZ0C0: Connection is already
closed.
at com.sybase.jdbc2.jdbc.ErrorMessage.raiseErrorCheckDead
(ErrorMessage.java:715)
at com.sybase.jdbc2.tds.Tds.handleIOE(Tds.java:3124)
at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1412)
at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1341)
at com.sybase.jdbc2.jdbc.SybStatement.doCancel(SybStatement.java:564)
at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1672)
at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate
(SybStatement.java:1625)
at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate
(SybPreparedStatement.java:91)
at com.p6spy.engine.logging.P6LogPreparedStatement.executeUpdate
(P6LogPreparedStatement.java:179)
at weblogic.jdbc.pool.Statement.executeUpdate(Statement.java:293)
at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1246)
at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
.>
java.io.IOException: JMS JDBC store, connection pool = <sybaseJMSPool>, prefix
= <JMS00>: write failed
java.sql.SQLException: JZ006: Caught IOException:
com.sybase.jdbc2.jdbc.SybConnectionDeadException: JZ0C0: Connection is already
closed.
at com.sybase.jdbc2.jdbc.ErrorMessage.raiseErrorCheckDead
(ErrorMessage.java:715)
at com.sybase.jdbc2.tds.Tds.handleIOE(Tds.java:3124)
at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1412)
at com.sybase.jdbc2.tds.Tds.cancel(Tds.java:1341)
at com.sybase.jdbc2.jdbc.SybStatement.doCancel(SybStatement.java:564)
at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1672)
at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate
(SybStatement.java:1625)
at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate
(SybPreparedStatement.java:91)
at com.p6spy.engine.logging.P6LogPreparedStatement.executeUpdate
(P6LogPreparedStatement.java:179)
at weblogic.jdbc.pool.Statement.executeUpdate(Statement.java:293)
at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1246)
at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
at weblogic.jms.store.JDBCIOStream.throwIOException
(JDBCIOStream.java:1213)
at weblogic.jms.store.JDBCIOStream.write(JDBCIOStream.java:1256)
at weblogic.jms.store.StoreRequest.doTheIO(StoreRequest.java:250)
at weblogic.jms.store.JMSStore.execute(JMSStore.java:182)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
Before that this message appeared:
<Aug 13, 2002 11:31:16 AM CEST> <Error> <ConnectionManager> <www00-test>
<node00> <ExecuteThread: '26' for queue: 'default'> <> <> <000000>
<Closing: 'weblogic.rjvm.t3.T3JVMConnection@795af6' because of: 'Server
received a message over an uninitialized connection: 'JVMMessage from: 'null'
to: '-4555218188801970213S:192.168.13.1:[7001,7001,7002,7002,7001,7002,-
1]:ADIS:node00' cmd: 'CMD_REQUEST', QOS: '101', responseId: '1',
invokableId: '287', flags: 'JVMIDs Not Sent, TX Context Not Sent', abbrev
offset: '34'''>
This problem did not occur on another system which was used during a 2 day stress
testing session.
It seems that the problem occurs after a period in which no user request where
made. The user requests trigger EJB's that start sending JMS messages.
When the problem occurs, the JMS messaging systems seems to lock up as no messages
are received anymore by the different listeners (MDBs).
Undeploying and redeploying the JBDC connection pool solves the problem. This
solution is unacceptable in case of a production system.
A similarly defined connection pool, which is used by the EJBs to make database
connection, does not manifest this problem.
<JDBCConnectionPool Name="sybasePool"
Targets="cluster00"
InitialCapacity="10"
CapacityIncrement="5"
MaxCapacity="50"
PreparedStatementCacheSize="150"
DriverName="com.sybase.jdbc2.jdbc.SybDriver"
Properties="[email protected]@;[email protected]@;JCONNECT_VERSION=6;charset=utf8"
URL="jdbc:sybase:Tds:@db.host@/@db.name@"/>
The JDBC connection pool is used as follows by the JDBC store
<JMSJDBCStore ConnectionPool="sybaseJMSPool" Name="JDBCStore00" PrefixName="JMS00"/>
<JMSServer Name="JMSServer00" Store="JDBCStore00" Targets="node00">
<JMSTopic JNDIName="ADIS.JMSError" JNDINameReplicated="false" Name="ErrorTopic"/>
<JMSTopic JNDIName="ADIS.Status"
Name="StatusTopic" RedeliveryDelayOverride="300000"/>
<JMSTopic JNDIName="ADIS.OrderChange" JNDINameReplicated="false"
Name="OrderChangeTopic" RedeliveryLimit="3"/>
</JMSServer>
Turning on the "Test Reserved Connection" with a appropriate test table does not
help.
Some sources on the internet tell us that JZ0C0 errors in the Jconnect driver
can be related to network problems. Nevertheless the connection pool should be
able to cope with this.
Can you provide any solution for this ? Or give us hints what can cause the problem
Zhenhao Qi wrote:
thanks! Joe.
The SQL statement itself can no longer be simplified, the long excuation time is due to the database size and complicated Select criteria. I can easily reproduce the problem by using this SQL. I tried "BEA's Oracle driver (Type 4): Version 8.1.7,9.0.1,9.2.0". the question can be dissect into 2 pieces:
1) why the jdbc connection (using oracle.jdbc.OracleDriver) won't return anything if the SQL execution time > 5min, that is probably the Oracle's problem
2) why the occupied connection pool won't release even I set "Statementtimeout=600", this is Weblogic's problem.
ZhenhaoHi. Yes, (1) is oracle's problem. (2) may also be. The JDBC spec has very few
allowances for one thread to interrupt a second thread's JDBC call. If we
transmit your timeout request by calling setQueryTimeout() on the oracle
statement, and if you have a weblogic-controlled transaction we call
Statement.cancel() on any ongoing statement, we end up relying on whether
the Oracle driver implements and responds to those calls.
Are you doing weblogic-controlled transactions? Are you/can you
call Statement.setQueryTimeout() on your statements, or are these
generated JDBC queries?
If you can duplicate the problem using the weblogic.jdbc.oracle.OracleDriver
we have some other debug avenues. This would be good even if you really
want to use the thin driver, because we will do the same JDBC calls to
either driver, and the debug would prove (if) we set up a query timeout
and if we call cancel(). If we do, then we can know that it is the Oracle
driver failing in these regards.
Joe -
JDBC Connection pools and clusters (is max connection for entire cluster?)
Hi,
Quick question.
When using JDBC connection pools in WAS 6.40 (SP13) in a clustered environment. Are the max connections the number
a)Each application server can use
b)The entire cluster can use
Would believe a), but I'd like it confirmed from someoneelseHi Dagfinn,
your assumption is correct. Therefore, in a cluster environment you'd need to make sure the DB can open <i>Number of nodes X max connections</i>. -
Issues with JDBC Connection Pooling
Hi all,
I'm experiencing some unexpected behaviour when trying to use JDBC Connection Pooling with my BC4J applications.
The configuraiton is -
Web Application using BC4J in local mode
Using Default Connection Stagegy
Stateless Release Mode
Retrieving Application Modules using Configuration.createRootApplicationModule( am , cf );
Returning Application Modules using Configuration.releaseRootApplicationModule( am, false );
Three application modules
AppModuleA - connects to DatabaseConnection1
AppModuleB - connects to DatabaseConnection2
AppModuleC - connects to DatabaseConnection2
My requirement is to -
Use App Module Pooling and have individual pool for each Application Module
Use JDBC Pooling and have individual pool for each Database connection
Note: All configuration was achieved in design mode (i.e. right clicking AppModule->Configurations...)
1. Initial approach -
In the configuration for each Application Module I specified the connection type as 'JDBC Datasource' and specified to approriate datasource.
Tried setting doConnecitonPooling to 'true' as well as 'false'
In the data-sources.xml I specified all the appropriate info including min-connections and max-connections.
I would expect, with the above config that BC4J would use OC4J's built in JDBC connection pooling.
2. Second approach -
In the configuration for each Application Module I specified the connection type as JDBC URL.
In the configuration I specified doConnectionPooling = 'true' as well as the max connection, max available and min available
What I experienced in both cases was that the max connections seem to be ignored as the number of connection as reported by the database (v$session) was exceeded by more than 10.
In addition to this once the load was removed the number of JDBC connecitons did not drop (I would have expected it to drop to max available connections)
My questions are -
1. When specifying to use a 'JDBC Datasource' style of connection, is it in fact OC4J that is then responsible for pooling JDBC connections? And in this case should BC4J's doConnectionPooling parameter be set to true or false?
2. Are there any known issues with the use of the JDBC Conneciton Pool as stated by the above to approaches?Thanks for the additional info. Please see my comments. below.
Sorry should have been more specififc -
1. Is each application pool using a different JDBC user? You mentioned DatabaseConnection1 and DatabaseConnection2
above; are these connections to different schemas / users? If so, BC4J will create a separate connection pool for each
JDBC user. Each connection pool will have its own maximum pool size.
Each 'DatabaseConnection' refers to a different database, actually hosted on a seperate physical server, different
schema and different user.BC4J will maintain a separate connection pool for each permutation of JDBC URL / schema. If each user is connecting
to a different DB instance then I would expect no greater than 10 DB sessions. However, if a DB instance is hosting
more than user then I would expect greater than 10 DB sessions (though still no more than 10 DB sessions per user).
2. Are all the v$session sessions related to the JDBC clients? There should be at least one additional database
session which will be related to the session that is querying v$session.
When querying the v$session table I specifically look for connections from the user in quesiton and from the machine
name in question and in doing so eliminate the database system's connections, as well as the query tools'
connection. One area I'm not sure about is the connection BC4J uses to write to its temporary tables. I am using
Stateless release mode and have not explicetly stated to save to the database but I'm wondering if it still does if so
and how does it come into the equation with max connections?BC4J's internal connections are also pooled and the limits apply as mentioned above. So, if you have specified
internal connection info for a schema which is different than the users above I would expect the additional conns.
One helpful diagnostic tool, albeit programmatic, might be to print the information about the connection pools after
your test client(s) have finished. This may be accomplished as follows:
// get a reference to the BC4J connection pool manager
import oracle.jbo.server.ConnectionPoolManagerFactory;
import oracle.jbo.server.ConnectionPoolManagerImpl;
import oracle.jbo.pool.ResourcePool;
import java.io.PrintWriter;
import java.util.Enumeration;
// get the ConnectionPoolManager. assume that it is an instance of the supplied manager
ConnectionPoolManagerImpl mgr = (ConnectionPoolManagerImpl)ConnectionPoolManagerFactory.getConnectionPoolManager();
Enumeration keys = mgr.getResourcePoolKeys();
PrintWriter pw = new PrintWriter(System.out, true);
while (keys.hasMoreElements())
Object key = keys.nextElement();
ResourcePool pool = (ResourcePool)mgr.getResourcePool(key);
System.out.println("Dumping pool statistics for pool: " + key);
pool.dumpPoolStatistics(pw);
} -
How to use JDBC Connection Pools in a standalone application?
Hi, there,
I have a question about how to use JDBC Connection Pools in an application. I know well about connection pool itself, but I am not quite sure how to keep the pool management object alive all the time to avoid being destroyed by garbage collection.
for example, at the website: http://www.developer.com/java/other/article.php/626291, there is a simple connection pool implementation. there are three classes:JDBCConnection, the application's gateway to the database; JDBCConnectionImpl, the real class/object to provide connection; and JDBCPool, the management class to manage connection pool composed by JDBCConnectionImpl. JDBCPool is designed by Singleton pattern to make sure only one instance. supposing there is only one client to use connection for many times, I guess it's ok because this client first needs instantiate JDBCPool and JDBCConnectionImpl and then will hold the reference to JDBCPool all the time. but how about many clients want to use this JDBCPool? supposing client1 finishes using JDBCPool and quits, then JDBCPool will be destroyed by garbage collection since there is no reference to it, also all the connections of JDBCConnectionImpl in this pool will be destroyed too. that means the next client needs recreate pool and connections! so my question is that if there is a way to keep pool management instance alive all the time to provide connection to any client at any time. I guess maybe I can set the pool management class as daemon thread to solve this problem, but I am not quite sure. besides, there is some other problems about daemon thread, for example, how to make sure there is only one daemon instance? how to quit it gracefully? because once the whole application quits, the daemon thread also quits by force. in that case, all the connections in the pool won't get chance to close.
I know there is another solution by JNDI if we develop servlet application. Tomcat provides an easy way to setup JNDI database pooling source that is available to JSP and Servlet. but how about a standalone application? I mean there is no JNDI service provider. it seems a good solution to combine Commons DBCP with JNID or Apache's Naming (http://jakarta.apache.org/commons/dbcp/index.html). but still, I don't know how to keep pool management instance alive all the time. once we create a JNDI enviroment or naming, if it will save in the memory automatically all the time? or we must implement it as a daemon thread?
any hint will be great apprieciated!
SamTo my knoledge the pool management instance stays alive as long as the pool is alive. What you have to figure out is how to keep a reference to it if you need to later access it.
-
Crystal Reports's JRC. How to close JDBC connection?
Hi!
I have simple CR JRC application under Oracle AS 10.1.2.0.2, made from Crystal's sample codes.
It works fine, but there is little problem: after closing vievwer's page JDBC connections stays alive.
How can I close them?
Here is my 2 jsp:
---------- Page1.jsp -----------------
"<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@page import="com.crystaldecisions.reports.sdk.*" %>
<%@page import="com.crystaldecisions.sdk.occa.report.lib.*" %>
<%@page import="com.crystaldecisions.report.web.viewer.*"%>
<%
// open the report rpt file
String REPORT_NAME = "directs_q_d1.rpt";
String Login =request.getParameter("p1");
String Password =request.getParameter("p2");
ReportClientDocument reportClientDoc = new ReportClientDocument();
reportClientDoc.open(REPORT_NAME, 0);
reportClientDoc.getDatabaseController().logon(Login,Password);
ParameterFieldController paramFieldController = reportClientDoc.getDataDefController().getParameterFieldController();
paramFieldController.setCurrentValue("", "reportname", new String("DIRECTS_QUARTERLY"));
session.setAttribute("reportSource", reportClientDoc.getReportSource());
reportClientDoc.close();
response.sendRedirect("CrystalReportViewer.jsp");
%>
and
----------- CrystalReportViewer.jsp ------------------------
<%//Crystal Report Viewer imports.%>
<%@page import="com.crystaldecisions.report.web.viewer.*"%>
<%@page import="com.crystaldecisions.reports.sdk.*" %>
<%
//Refer to the Viewers SDK in the Java Developer Documentation for more information on using the CrystalReportViewer
//API.
CrystalReportViewer viewer = new CrystalReportViewer();
viewer.setOwnPage(true);
viewer.setOwnForm(true);
viewer.setPrintMode(CrPrintMode.ACTIVEX);
viewer.setHasRefreshButton(false);
viewer.setEnableDrillDown(false);
viewer.setDisplayGroupTree(false);
viewer.setHasToggleGroupTreeButton(false);
viewer.setHasViewList(false);
viewer.setHasLogo(false);
//Get the report source object that this viewer will be displaying.
Object reportSource = session.getAttribute("reportSource");
viewer.setReportSource(reportSource);
//Render the report.
viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), out);
viewer.dispose();
%>
-------------------------------------Oh, i'm sorry :) It was a "time-out" tag in CRconfig.xml. Tipic closed.
Maybe you are looking for
-
Firefox crashes on start. Profile manager also crashes. Already reset.
Firefox crashes before it even fully starts. I tried to do the profile manager trick but profile manager crashes, too. I started in safe mode and did the reset Firefox thing, that didn't help. I deleted the cache while in safe mode. I even uninstalle
-
itunes wont restore correctly
-
Based on qulity the payment is need to be done to vendor ?
Dear friends, i have a scenario to map, base on Quality parameter(eg, purity, GSM,etc) , after UD, The vendor payments need to be done . please tell me the apporach.
-
How to start/stop a MSCS clustered SAP system?
Hi! I know the sequece is very important. Could you give the step sequence and the method of each step? I search SMP but found no clue. Thanks a lot! Pints guaranteed.
-
Problem With Match Transformation
Hi , I am using Match transformation to find the duplicates . My input data like this EMP NO ENAME SAL DEPTNO 10 SRIRAM MV 10000 100 11 MV SRIRAM 11000 100 12 SRIRAM PV 11000 100 13 SRIHARI 11000