HELP - which driver should I use?

Hi,
          We are developing an application using WebLogic 6.0 in conjunction with
          TOPLink 2.5.1 for object/relational mapping (manages the persistence
          layer). We would like to configure our application to use WebLogic's
          connection pools and I would have a few questions regarding the driver I
          should use.
          Here's a short description of our application:
          Our service layer is entirely composed of container managed stateless
          session beans. On the TOPLink side, the transactions are manipulated by
          a UnitOfWork object, which gives the control over the distributed
          transaction to an external transaction controller. Our WebLogic external
          transaction controller uses the UserTransaction interface to manipulate
          a transaction (begin/commit/rollback). So, within an EJB method
          execution we might have several units of work begin and 'commit'
          transactions, but the overall transaction is really committed only at
          the method exit, by the external transaction controller.
          This works, without using connection pools. The problem is, if we don't
          use connection pools for every SQL executed, a new connection is created
          and authenticated against the Oracle Server, which is terrible for
          performance. However, when I tried to configure a WebLogic connection
          pool, it doesn't work anymore (by using the non-XA OCI driver the
          connections from the pool were used, but never released back to the pool
          after the transaction was being committed).
          My questions are:
          1. Given that our transactions are manipulated through JETS, is it
          correct to use the JTS Oracle driver, which comes with the WL6.0
          installation?
          Driver Classname: weblogic.jdbc.jts.Driver
          URL: jdbc:weblogic:jts:myOracleInstance
          2. If we should use the JTS Oracle driver, should I specify the pool
          name in the Oracle URL?
          3. What is the difference between jdbc20 and jdbc? Is the first one
          deprecated?
          Thank you,
          Brenda.
          [att1.html]

Hi Sriram,
          Thank you very much for your help.
          I used the datasource configuration as you suggested and it almost
          works. It is noticeable faster than before,
          but the problem now is that I am getting the following exception when
          loading the sixth object into the database.
          I do not understand why it is the sixth object, because I created the
          Oracle connection pool with a maximum of
          10 connections.
          Here's the exception I get:
          Creating user numbers: from 2461 to 2500
          Create User testuser2461
          Create User testuser2462
          Create User testuser2463
          Create User testuser2464
          Create User testuser2465
          Create User testuser2466
          Caught unexpected exception. Reason:
          weblogic.transaction.internal.AppSetRollbackOnlyException
          at
          weblogic.transaction.internal.TransactionImpl.setRollbackOnly(TransactionImpl.java:403)
          at
          weblogic.transaction.internal.TransactionManagerImpl.setRollbackOnly(TransactionManagerImpl.java:242)
          at
          weblogic.transaction.internal.TransactionManagerImpl.setRollbackOnly(TransactionManagerImpl.java:236)
          at
          TOPLink.Public.JTS.WebLogic.WebLogicJTSSynchronization.rollbackGlobalTransaction(WebLogicJTSSynchronization.java:140)
          at
          TOPLink.Public.JTS.AbstractSynchronizationListener.beforeCompletion(AbstractSynchronizationListener.java)
          at
          weblogic.transaction.internal.ServerSCInfo.callBeforeCompletions(ServerSCInfo.java:500)
          at
          weblogic.transaction.internal.ServerSCInfo.startPrePrepareAndChain(ServerSCInfo.java:70)
          at
          weblogic.transaction.internal.ServerTransactionImpl.localPrePrepareAndChain(ServerTransactionImpl.java:877)
          at
          weblogic.transaction.internal.ServerTransactionImpl.globalPrePrepare(ServerTransactionImpl.java:1203)
          at
          weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:158)
          at
          weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:203)
          at
          com.imoney.service.userManagement.UserServiceBeanEOImpl.createUser(UserServiceBeanEOImpl.java:478)
          at
          com.imoney.service.userManagement.UserServiceBeanEOImpl_WLSkel.invoke(UserServiceBeanEOImpl_WLSkel.java:114)
          at
          weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:373)
          at
          weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:128)
          at
          weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:237)
          at
          weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestHandler.java:103)
          at
          weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:17)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          --------------- nested within: ------------------
          weblogic.transaction.RollbackException: Unknown reason - with nested
          exception:
          [weblogic.transaction.internal.AppSetRollbackOnlyException]
          at
          weblogic.transaction.internal.TransactionImpl.throwRollbackException(TransactionImpl.java:1248)
          at
          weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTransactionImpl.java:208)
          at
          weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:203)
          at
          com.imoney.service.userManagement.UserServiceBeanEOImpl.createUser(UserServiceBeanEOImpl.java:478)
          at
          com.imoney.service.userManagement.UserServiceBeanEOImpl_WLSkel.invoke(UserServiceBeanEOImpl_WLSkel.java:114)
          at
          weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:373)
          at
          weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:128)
          at
          weblogic.rmi.internal.BasicServerAdapter.invoke(BasicServerAdapter.java:237)
          at
          weblogic.rmi.internal.BasicRequestHandler.handleRequest(BasicRequestHandler.java:103)
          at
          weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:17)
          at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:137)
          at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
          >> This works, without using connection pools. The problem is, if we
          >> don't use connection pools for every SQL executed, a new connection
          >> is created and authenticated against the Oracle Server, which is
          >> terrible for performance. However, when I tried to configure a
          >> WebLogic connection pool, it doesn't work anymore (by using the
          >> non-XA OCI driver the connections from the pool were used, but never
          >> released back to the pool after the transaction was being
          >> committed).
          >>
          >> My questions are:
          >>
          >> 1. Given that our transactions are manipulated through JETS, is it
          >> correct to use the JTS Oracle driver, which comes with the WL6.0
          >> installation?
          >> Driver Classname: weblogic.jdbc.jts.Driver
          >> URL: jdbc:weblogic:jts:myOracleInstance
          >>
          >
          > Don't use the weblogic.jdbc.jts.Driver. The java.sql.Driver interface
          > is getting deprecated in favor of the DataSource interface.
          > Instead, configure the pool and a datasource to "wrap" the pool, as
          > follows:
          > <JDBCConnectionPool
          > Name="testPool"
          > Targets="myserver,server1"
          > URL="jdbc:weblogic:oracle:foo" 
          > DriverName="weblogic.jdbc.oci.Driver"
          > InitialCapacity="1"
          > MaxCapacity="10"
          > CapacityIncrement="1"
          > Properties="user=scott;password=tiger;server=foo"
          > />
          >
          > <JDBCDataSource
          > Name="poolDS" 
          > Targets="myserver,server1" 
          > JNDIName="moneyDS" 
          > PoolName="testPool" 
          > />
          >
          >
          > At run-time, instead of doing DriverManager.getConnection(), call
          > jndiContext.lookup("moneyDS") to get a DataSource object. Call
          > getConnection() on it.
          >
          > This is faster and much more thread-savvy than the DriverManager code.
          [att1.html]

Similar Messages

HT3669 which driver should i use for the epson LX300 matrix-dot printer??

which driver should i use for the epson LX300 matrix-dot printer??? I dowloaded all drivers for epson but i didn't find the driver for the LX300.
I bought an i mac not so long ago, can anyone help me about this?

i use parallels desktop 7 because i use a program for work with windows XP. Is there really no solution?

Which driver should I use for Oracle RAC .....

We are using Weblogic 8.1 sp2 and Oracle RAC (9.x). Which driver , I should
use : i.e.
type 2 Orcle thin driver
or
type 2 Oracle OCI driver
or
type 4 oracle thin driver
or
Jdrivers
or other which is best for this configuration .
Sanjeev

Thanks. I was unaware of that forum.
Joe
Galen Boyer wrote:
On Tue, 06 Jul 2004, [email protected] wrote:
Galen Boyer wrote:
Joe, I have always suggested that people use the OCI driver
unless it won't suffice based on distribution requirements.
How come you choose the thin driver? Oracle will generally
fix the OCI driver before the thin and the OCI driver will
give far superior performance when dealing with LOBs.We have actually had faster response getting thin driver fixes
than OCI-based fixes. Thats interesting. I'll take note of it.
The 10g driver works with RAC, is much faster than previous
drivers, and is easier to install etc. OCI users are often
hopeful about TAF, which is broken and less-than-useless for
active complicated JDBC applications. OCI problems can bring
down the whole JVM and are harder to debug.
These are from reading the results and recommendations of
Oracle Corporation, Tom Kyte and other Oracle professionals.
Have you research to say different? I'd like to see it,
because up until now, I've always suggested OCI first unless
the client doesn't have an oracle client installation
available.Tom does an excellent job from the DBMS perspective, but I
don't see him often in the jdbc arena.His Q&A site is littered with jdbc examples. He also will call
on people in specific expertise to help him answer questions.
Here an example of that where he show the OCI driver to be much
more performant.
http://asktom.oracle.com/pls/ask/f?p=4950:8:9561536906412728184::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:1004630777647,

Which driver should I use

I am considering to use a native JDBC driver instead of the JDBC-ODBC bridge. The reason for that is that I need an improvement in performance on select statements. Deletes, inserts and updates are not important.
Does anybody know what kind of improvement in performance I could expect when using a native JDBC driver? I'm using both Oracle 8i and MS SQL Server 2000 as databases, but I'm most interested in the performance improvement for SQL Server.
Has anybody tried for instance Microsoft's "own" JDBC driver?

MSs Jdbc Driver still requires Jdbc-Odbc bridge.
Just go thru the URL,
http://www.weblogic.com/docs/techsupport/faq/jdbckona_m
sqlserver.html#bridge
Hope this helps.
SudhaThanks for the URL, but I think this page does not refer to the beta-JDBC driver which MS has made available recently. For instance it says that Microsoft's driver is a type 2 driver, while in reality it is type 4.
Misja

Which jdbc driver should be used for sqlserver 2000 and where to put it.

hi all,
My odi is 11g. I met the error infor "Could not load JDBC driver class [com.microsoft.sqlserver.jdbc.SQLServerDriver]" when i tried to connect to a sqlserver2000 database.
The questions are:
1. which jdbc driver should be used for sqlserver 2000?
2. which folder to put it in?
3. how to set the physical topological "Microsoft Sql Server" to use this jdbc driver?
failed tries:
i downloaded the driver "SQL Server 2000 Driver for JDBC Service Pack 2" and put it in the following folders:
1. .../oracledi/drivers, and set this path to CLASSPATH.
2. .../oracledi/userlib didn't exist, i created it and put the driver in.
3. .../oracledi/agent/dirvers, in which a readme file exists and told me to put drivers in this folder.
All these works were not useful. when I start odi.sh and try to connect to sqlserver2000 database, the same error infor came up.
my environment is:
os: Linux 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
java: Java(TM) SE Runtime Environment (build 1.6.0_13-b03) Java HotSpot(TM) 64-Bit Server VM (build 11.3-b02, mixed mode)
ODI: 11g, installed in /users/oracle/odi/
please help me,thanks a lot.
jun
帖子经 Jun编辑过

Hi,
You should check which JVM version is required by that version of the driver, I think the 2.x versions require a 1.6 JVM
What error are you getting? If it is the "com.sunopsis.sql.c: No suitable driver", it indicates it can't find the jar file (sqljdbc.jar) for the driver you specify.
Drivers folder in ODI 11g is under
C:\oracle\product\11.1.1\Oracle_ODI_1\oracledi\agent\drivers.
if you are using the standolone version
On windwos :
C:\Documents and Settings\<userName>\Application Data\odi\oracledi\userlib
on linux
$HOME/.odi/oracledi/userlib
Have a read of :- http://download.oracle.com/docs/cd/E14571_01/core.1111/e16453/install.htm#CHDBIFAJ
Thanks,
Sutirtha

Which external hard drive should I use to save my iTunes library?

Hi,
So I have collected so much music and movies in iTunes that my internal HD is practically full. (Library is over 500GB of 1TB and the rest is taken up with my apps and programs.) It's time to purchase an external hard drive to transfer my library to. Furthermore, I currently have a 2TB WD My Book for Mac that I am currently using for backup. The My Book is also full and Time Machine is deleting the oldest backups to make room for the current ones.
Here is where I need everyones advice. I am planning on purchasing a 3TB WD My Book for Mac. I am planning on purchasing more movies for iTunes. Which external hard drive should I use for what? Option A or B
Option A: Put my iTunes library on the 2TB external hard drive and use the 3TB for backup
Option B: Put my iTunes library on the 3TB external hard drive and continue to use the 2TB for backup
Also please give me your reasoning.
Thanks everyone for your responses!

Limnos,
So, let's go one step further with this. I read your reply to moving iTunes library to an external hard drive: https://discussions.apple.com/thread/4594518?tstart=0 However, if I move the iTunes library, will this include all the movies and apps that I have purchased?
Thanks!!!!

What XA JDBC driver should I use with Oracle 8i 8.1.6

I need to use an XA JDBC driver for Oracle 8i 8.1.6. I am using the driver in
a ConnectionPool in a TxDataSource for use by some entity beans using EJB 2.0.
I'm running WebLogic Server 6.0 sp2, EJB 2.0, Java 2 SDK 1.3.1 Server VM, Solaris
2.7, and Oracle 8i 8.1.6.
I know of three different Oracle XA drivers: WebLogic jDriver for Oracle XA, Oracle
OCI type 2 driver XA, and Oracle Thin tyoe 2 XA. Are there any other drivers
that I can use for Oracle 8.1.6? Which driver and which version should I use?
For example, can I use the Oracle 8.1.7 JDBC drivers with the Oracle 8.1.6 server,
or would the Oracle 9i drivers work with the Oracle 8i server? Which drivers
are faster, and which support more features? I assume that I should not use the
type 4 driver since I am not using an applet, but I don't know if there are bugs
in the OCI C library for Solaris or in the JDBC drivers that use it that prevent
XA from woking. Which version of the Oracle C OCI library should I use if I use
a type 2 driver?
Thanks,
Ross Goldberg

Hi,
I think you can't use the 8.1.6 thin driver for XA, you would have to
use the OCI driver or 2PC-enable your datasource. AFAIK this has been
changed for 8.1.7
Check http://e-docs.bea.com/wls/docs61/////jta/thirdpartytx.html.
Daniel
-----Original Message-----
From: Gene Chuang [mailto:[email protected]]
Posted At: Thursday, August 30, 2001 2:04 AM
Posted To: jdbc
Conversation: What XA JDBC driver should I use with Oracle 8i 8.1.6
Subject: Re: What XA JDBC driver should I use with Oracle 8i 8.1.6
I've asked this question before. This is the reply from Joe
Weinstein:
For reliability and JDBC 2.0 compliance, I recommend the
Oracle thin driver.
If not that driver, you should verify that a type-2 driver
actually does
deliver better performance, but then I would not have a
strong preference
between their type-2 and ours. Theirs may be faster, and JDBC
2.0 compliant.
Both are succeptible to OCI bugs, some of which only they can
fix, but we
listen.
Gene
"Ross Goldberg" <[email protected]> wrote in message
news:[email protected]...
>
I need to use an XA JDBC driver for Oracle 8i 8.1.6. I am using thedriver in
a ConnectionPool in a TxDataSource for use by some entity beans usingEJB 2.0.
I'm running WebLogic Server 6.0 sp2, EJB 2.0, Java 2 SDK 1.3.1 ServerVM, Solaris
2.7, and Oracle 8i 8.1.6.
I know of three different Oracle XA drivers: WebLogic jDriver forOracle XA, Oracle
OCI type 2 driver XA, and Oracle Thin tyoe 2 XA. Are there any otherdrivers
that I can use for Oracle 8.1.6? Which driver and which versionshould I use?
For example, can I use the Oracle 8.1.7 JDBC drivers with the Oracle8.1.6 server,
or would the Oracle 9i drivers work with the Oracle 8i server? Whichdrivers
are faster, and which support more features? I assume that I shouldnot use the
type 4 driver since I am not using an applet, but I don't know ifthere are bugs
in the OCI C library for Solaris or in the JDBC drivers that use itthat prevent
XA from woking. Which version of the Oracle C OCI library should Iuse if I use
a type 2 driver?
Thanks,
Ross Goldberg

Which listener should be used for JTextArea

Hi,
I need to add a listener for JTextArea particualy when
the text in the jtextarea is changed. I don't think
mouse listener is enough, since the user can use tab to
get to the jtextarea and edit the text. In this case,
which listener should I use. Sample code would be
helpful.
In addition, I have a problem with the jtextarea that
when user uses tab to go to different gui components,
such as jtextfield, jcombobox, jtextarea, jlist, etc, the
tab stays in the jtextarea and keeps appending to it. It does
not go to next component, such as jlist. How can I make it
work?
Thanks in advance,
Pin

It doesn't work. Are you using 1.4 or 1.3? I am using
1.4.
In the 1.4 API, it says that isManagingFocus is
"Deprecated".
Here is what I have:
JTextArea descrptArea = new JTextArea() {
public boolean isManagingFocus() {
return false;
descrptArea.setRows(3);
descrptArea.setLineWrap(true);
descrptArea.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
// DO SOMETHING
I found the following code which says it will do it.
However, I got the exeception:
java.lang.ClassCastException:
n: javax.swing.KeyStroke
at java.util.TreeMap.compare(TreeMap.java:1081)
at java.util.TreeMap.put(TreeMap.java:459)
at java.util.TreeSet.add(TreeSet.java:205)
Set forwardTraversalKeys = new TreeSet();
forwardTraversalKeys.add(KeyStroke.getKeyStroke('\t'));
forwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEven
.VK_TAB,
InputEvent.CTRL_MASK));
textArea.setFocusTraversalKeys
(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
forwardTraversalKeys);
Set backwardTraversalKeys = new TreeSet();
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEve
t.VK_TAB,
InputEvent.SHIFT_MASK));
backwardTraversalKeys.add(KeyStroke.getKeyStroke(KeyEve
t.VK_TAB,
InputEvent.SHIFT_MASK |InputEvent.CTRL_MASK));
textArea.setFocusTraversalKeys(
KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
backwardTraversalKeys);
Any idea???
PinI'm not using 1.4 but the class cast exceptions look like they come from : Set forwardTraversalKeys=new TreeSet() etc
try : TreeSet forwardTraversalKeys=new TreeSet()
you cant cast from a Set to a TreeSet because a TreeSet is a Set but a Set is NOT a TreeSet.
hope this helps.

I want to convert a pdf file into xml.Which programme should I use and how do I access it?

I want to convert a pdf file into xml.Which programme should I use and how do I access it?I am based in India.

Hello,
if you create your doc files by the help of WORD, you could use a Microsoft add on (it depends of your WORD Version).
Hans-Günter

Which object should i use ?

Hi,
I have a methode that returns several values of different types. Which objet should I use to return these values ? I thought of Vector but somebody told me that there is a better object than Vector.
thanks for your help !
Tex

First, always use an interface over an object if it exists. So, your code should always declare the instance variable as List, not ArrayList or Vector or LinkedList. This allows the implementation to be optimized for the task at hand (e.g. LinkedList for arbitrary insertions or deletions of data, ArrayList for better Iterator performance, etc.) while using the interface for the common List methods (e.g., get(), add(), remove(), iterator(), etc.)
Second, avoid Vector. Sun specifically states in the Collections tutorial that ArrayList is preferred over Vector.
- Saish
"My karma ran over your dogma." - Anon

Which driver is being used

We had an issues whereby a new PC would not connect to our 64bit boot.wim to run a task sequence so we need to import a number of drivers into the boot image. The PC is now connecting. How can I find out which driver is being used on the boot
image as I would like to remove the others which are not being used, is there a log file or would it be a process of elimination
Wayne

You can also review the logs in WinPE including setupapi.dev.log and wpeinit.log.
Also, when you say "we need to import a number of drivers into the boot image", I hope you are just talking about NIC drivers because that's all that is truly needed during WinPE (along with storage drivers).
Finally, when needing to add a driver, you should test it first by loading up WinPE, dropping to the command-line and using drvload to dynamically load the driver. From there you can test whether it works. Ths is still a trial and error method, but it eliminates
the long drawn process of injecting, distributing, re-booting, etc. and of course it lets you know immediately which driver is correct.
Jason | http://blog.configmgrftw.com

What external Hard drive should I use for Final Cut Pro?

Hi:
I have a Mac Pro and I'm planning to work with HD. What external hard drive should I use?
PD: I have a NVIDIA on a PCI Express graphic slot.
Thanks,
Cabezon

You'll need to be much more specific; there are 20 or 60 different kinds of high definition. Some require nothing, some require superfast RAID, some require specialized hardware support.
bogiesan

I am a student and need to do my assignments in word. Which application should I use as I have to save all of them in older word version like 2003 to send it to my teacher?

I am a student and need to do my assignments in word. Which application should I use as I have to save all of them in older word version like 2003 to send it to my teacher?

You could use Microsoft Office for Mac, but I would recommend iWork! It's a better set of applications for a much better price. I have used both and I prefer it over Office. And Pages can not only open Word documents, you can also save documents in Word format. My brother and I both used iWork as an Office substitute when we were in college (I graduated a few years ago and he just graduated last night) and haven't had any compatibility issues. Check it out here http://www.apple.com/iwork/

I have down loaded Aurora,Beta4,firefox. Which one should i use

I have down loaded Aurora,Beta4,and Firefox. Which won should i use.'

That is up to you to decide. For some details about the different versions see https://developer.mozilla.org/devnews/index.php/2011/04/07/new-development-channels-and-repositories-for-rapid-releases/
If you have not used to testing software you should stick with the release version (Firefox 4.0.1).

Which CPU should I use

Hello,
our company want to buy new computers for the developers.
We have to use Windows XP as our OS because of third party products.
We develop J2SE + J2EE.
So my question:
Which CPU should we use?
I searched at google but didn't found any usefull sides about benchmarking an J2SE VM or J2EE VM.
Intel or AMD?
Are there some issues to be regarded?
Is the behavior of the VM different if you use an Intel or an AMD? (X86)
Our AppServer is JBoss 3.2.3.
Has Intel ore AMD some magic improvements for the SUN Java VM?
Any answer would be appreciated.
Thanks,
Oliver

Olli_ger,
Thanks for asking. To add more to the question, what about dual- and
multi-processors, such as Opteron 2xx and 8xx processors?
That is, can, and to what extent, does the Java compiler and the JVM
utilize multi-processors? And how is this done? Threads parceled out?
Using what algorithms? Are there "best practices" for writing code
that can exploit these chips?
Given the recent emergence of dual-core processors from both AMD and
Intel I would think Sun would have a white paper on this, but I've not
been able to find anything.
As I'm about to build a new system, and am looking at a dual processor
board that could take two dual-core chips, I'd really like to know.
Thanks again for opening the issue.
-BC

HELP - which driver should I use?

Similar Messages

Maybe you are looking for