AIX JDBC OCI Driver

I'm using IBM's WebSphere JDBC connection pool to manage oracle
connections. While the code worked normally on Sun Solaris, I
get ORA-03123, ORA-03127 etc errors on AIX. I'm closing the
resultsets, the statement handles and releasing the connection
after each SQL execution. Is this an AIX JDBC OCI driver problem
or am I missing something.
Thanks,
Ravi
null

I found problem like you but on DIGITAL UNIX 4.0D It's an
AIO Consistency Error.. did you know some thing about this??
and For your question OCI7 driver to connect to ORACLE7.3.4 are
in liboci73.so or another extension depend on your OS (I don't
know what's one on AIX) but it must come with Oracle
Installation Package you can install on AIX :>
Prashant (guest) wrote:
: Hi:
: Does any one know where I could find JDBC/OCI level 2 driver
: for AIX (4.2) running Oracle (7.3.4). All I have been able to
: locate is the NT and Solaris. Both contains classes and shared
: libraries for that machine. I saw someone posted this question
: before, however, suggestions was to use dynamic library
generated
: for Solaris, this will not work. Does anyone have other
: suggestions.
: Any and all help is appreciated.
: Many Thanks
: Prashant.
null

Similar Messages

JDBC/OCI driver for JDK1.2

Hi,
I have an evaluation copy of Oracle8 version 8.0.3.0 and
downloaded the JDBC/OCI driver for JDK1.1 (classe111.zip). The
example I used was also taken from this site, which connects to
the database and lists ename from emp, using scott/tiger.
Everything worked fine under JDK1.1 but I can't get the code to
work with JDK 1.2
Does Oracle provide a JDBC/OCI driver that will work with JAVA
1.2 or am I missing something. Please note that I am not using
Oracle8i.
Any assistance would be greatly appreciated.
Karim
null

Karim,
Openlink Software (http://www.openlinksw.com) provides JDBC 2.0
drivers in version 3.2. This version will be hitting our public
web site next week, but you can get pre-release components from
ftp://ftp.openlinksw.com/pre-3.2/index.html
The JDK 1.2 drivers are all the way at the bottom under the
Windows section.
HTH,
Stephen
Karim (guest) wrote:
: Hi,
: I have an evaluation copy of Oracle8 version 8.0.3.0 and
: downloaded the JDBC/OCI driver for JDK1.1 (classe111.zip). The
: example I used was also taken from this site, which connects
to
: the database and lists ename from emp, using scott/tiger.
: Everything worked fine under JDK1.1 but I can't get the code
to
: work with JDK 1.2
: Does Oracle provide a JDBC/OCI driver that will work with JAVA
: 1.2 or am I missing something. Please note that I am not using
: Oracle8i.
: Any assistance would be greatly appreciated.
: Karim
null

How to use the Oracle 10g JDBC OCI driver in JBoss ?

Greetings,
I deployed ojdbc14.jar in JBoss and I created an Oracle datasource. I have the following questions:
1. In the datasource descriptor file I have:
<connection-url>jdbc:oracle:oci:@(description=(address=(host=localhost)(protocol=tcp)(port=1521))(connect_data=(SERVICE_NAME=xe)))</connection-url>
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
Is it enough in order to use the Oracle 10g JDBC OCI driver ?
2. After having looked-up the datasource and created a connection, the classe of these objects are org.jboss.resource.adapter.jdbc.WrapperDataSource and, respectivelly, org.jboss.resource.adapter.jdbc.WrappedConnection. How can I have access to oracle.jdbc.oci and oracle.jdbc.pool packages ?
Many thanks in advance,
Nicolas

Hello
We were banging our heads on a similar thing, maybe this will help
We needed to convert the wrapped connection to an OracleConnection so that we could do a proxy switch, but maybe you could apply it to your situation anyway
1-you have to convert the Connection object to an OracleConnection in order to use the method that does the proxy switch
The method to do this is getInnermostDelegate()
Once you call this method, you get a new Connection object that can be cast to an OracleConnection object
See below for the snippet of code
// now switch the user and reselect
if (conn instanceof DelegatingConnection) {
properties.put("PROXY_USER_NAME","peter/peter");
oraConn =((DelegatingConnection)conn).getInnermostDelegate();
if (oraConn == null)
out.println("oraConn is null\n");
((OracleConnection)oraConn).openProxySession(OracleConnection.PROXYTYPE_USER_NAME,properties);
2-you have to put a setting in the xml file in conf/Catalina/localhost that allows you to call the getInnermostDelegate() method
By default, Tomcat does not allow you to call this method, it will always return null
You have to change the xml to allow it to return an object
It seems that WebSphere and Tomcat both frown on vendor-specific methods that do not comply with the JDBC standards, but do allow it
Here is the setting:
<parameter>

<name>accessToUnderlyingConnectionAllowed</name>
<value>true</value>
</parameter>
Note, this setting was also put in the conf/server.xml file
Thanks
Peter

Oracle 9.2.0.6 client JDBC OCI driver compatibility issue with JRockit 1.4.

I have weblogic server 8.1 sp4 running on Linux E3.0 using JRockit 1.4.2_5.
I cannot seem to get the Oracle driver ojdbc14.jar to work. Yes I have added $ORACLE_HOME/bin to my classpath prior to any weblogic classes, I added $ORACLE_HOME/lib and $ORACLE_HOME/jdbc/lib to my LD_LIBRARY_PATH with no luck.
I get the error "no ojdbc10 in java.library.path".
I keep reading in the JDBC driver notes that the driver is compatible with different version of JDK 1.x but not JRockit. Perhaps Oracle 10 has this fixed.
Anyone experiences the same problem ? I am stuck ..

Oracle database 10.2 drivers ojdbc14.jar may also be used with JDK 5.0.
http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.htm#02_03

Failed to call Oracle JDBC OCI driver

Hi - there,
I have just loaded JDBC classes for Oracle 8.0.5, which is running on Sun Solaris.
The Path setup for this driver is
CLASSPATH=$ORACLE_HOME/jdbc/lib/classes111.zip
LIBRARY_PATH=$ORACLE_HOME/jdbc/lib:$ORACLE_HOME/lib.
But I am not able to run any test programs and keep getting the error of
"java.lang.NoClassDefFoundError: oracle/jdbc/driver/OracleDriver
Someone can help me to jump-start this driver?
Thank a lot
Charlie

Try to use Backslashes in the classpath.
It is a problem of your Classpath, because it don't find the class.
Regards,
Geri

Oracle 8.1.5 and JDBC OCI connection problem

We are running Oracle 8.1.5 on Solaris 7 machine, and our java application running on JDK 1.2 connects to Oracle via JDBC thin driver because we couldn't make jdbc oci driver work.
When we try to connect via oci with the driver originally shipped with 8.1.5, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: make_c_state
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:213)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
After we downloaded 8.1.6sdk driver from technet and install it, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8 in java.library.path
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Error.<init>(Error.java:50)
at java.lang.LinkageError.<init>(LinkageError.java:43)
at java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:42)
at java.lang.ClassLoader.loadLibrary(Compiled Code)
at java.lang.Runtime.loadLibrary0(Runtime.java:471)
at java.lang.System.loadLibrary(System.java:745)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:209)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
I searched this forum for answer and only relevent answer from oracle was: consult README file! Readme file mentions that lobocijdbc.so file is shared library file for oci connection. That't all. So what?
I added the directory where libocijdbc8.so resides to LD_LIBRARY_PATH, and System.getProperty("java.library.path") shows content of LD_LIBRARY_PATH correctly.
null

Please this is not simple as simple as checking the classpath and LD_LIBRARY_PATH.
I tried the sample program and the result is the same. As pointed out first by Won, putting the libocijdbc8.so from SDK8.1.6 in the LD_LIBRARY_PATH has no effect at all. It gives the unsatisfied linker error. The sample program fails. However the sample program works fine with the libocijdbc8.so from sdk8.1.5. The library gets loaded. But at the time of creating the connection it gives make_c_state error.
Here is my CLASSPATH, PATH and LD_LIBARY_PATH variables
ORACLE_HOME=/opt/oracle/product/8.1.5
LD_LIBRARY_PATH=/usr/local/lib:/usr/lib:/opt/oracle/product/8.1.5/lib
PATH=/usr/openwin/bin:/usr/sbin:/usr/local/bin:/usr/ccs/bin:/usr/ucb:/opt/oracle/product/8.1.5/lib
Hope you are able to provide better answer then check your environment variables.
THE libocijdbc8.so FROM SDK8.1.6 DOES NOT GET LOADED AT ALL.
Waiting for the reply.
Please Help.
Regards,
Vipul Modi.
Novell Inc.
<BLOCKQUOTE>quote:<HR>Originally posted by Won, Taewoong([email protected]):
We are running Oracle 8.1.5 on Solaris 7 machine, and our java application running on JDK 1.2 connects to Oracle via JDBC thin driver because we couldn't make jdbc oci driver work.
When we try to connect via oci with the driver originally shipped with 8.1.5, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: make_c_state
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:213)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
After we downloaded 8.1.6sdk driver from technet and install it, we get:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no ocijdbc8 in java.library.path
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Error.<init>(Error.java:50)
at java.lang.LinkageError.<init>(LinkageError.java:43)
at java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:42)
at java.lang.ClassLoader.loadLibrary(Compiled Code)
at java.lang.Runtime.loadLibrary0(Runtime.java:471)
at java.lang.System.loadLibrary(System.java:745)
at oracle.jdbc.oci8.OCIDBAccess.logon(OCIDBAccess.java:209)
at oracle.jdbc.driver.OracleConnection.<init>(OracleConnection.java:198)
at oracle.jdbc.driver.OracleDriver.getConnectionInstance(OracleDriver.java:251)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:224)
at java.sql.DriverManager.getConnection(Compiled Code)
at java.sql.DriverManager.getConnection(DriverManager.java:137)
at JDBCTest.main(Compiled Code)
I searched this forum for answer and only relevent answer from oracle was: consult README file! Readme file mentions that lobocijdbc.so file is shared library file for oci connection. That't all. So what?
I added the directory where libocijdbc8.so resides to LD_LIBRARY_PATH, and System.getProperty("java.library.path") shows content of LD_LIBRARY_PATH correctly.
<HR></BLOCKQUOTE>
null

Memory Leak in 8.1.6.0.1 JDBC/OCI for Solaris

Hello,
there is a memory leak in the 8.1.6.0.1 JDBC-OCI driver for solaris.
The leak causes your jvm to eat up all memory
if you reuse callable statements
(calling one statement multiple times with
different values).
The thin driver has no such problem. Is
there any fix available ?

Ok. The code spans multiple classes and
most of it comes from a customized version
of the Enhydra Java Application server.
I have a class called "StandardDBConnection"
which caches CallableStatements and is a
wrapperclass for java.sql.DBConnection. The
interesting method here is "prepareCall":
* Get a callable statement given an SQL string. If the statement is
* cached, return that statement, otherwise prepare and save in the
* cache.
* @param sql The SQL statement to be called.
* @return a new CallableStatement object containing the
* pre-compiled SQL statement.
* @exception java.sql.SQLException If a database access error occurs
* statement.
public synchronized CallableStatement prepareCall(String sql)
throws SQLException {
PreparedStatement preparedStmt;
logDebug ("Prepare call: " + sql);
validate();
preparedStmt = (PreparedStatement)preparedStmtCache.get(sql);
// Check if the object returned by the cache really is a
// callable statement. if it is not, someone did call first
// prepareStatement() and now prepareCall() with the same
// sql. Silently replace the existing cache entry by a
// callable statement in this case.
if (preparedStmt instanceof CallableStatement) {
preparedStmt.clearParameters();
else {
// Need to close the old PreparedStatement in case we have to
// replace it with a CallableStatement
if (preparedStmt != null) {
preparedStmt.close();
else if (preparedStmtCache.size() >= maxPreparedStmts) {
String key = (String)preparedStmtCache.keys().nextElement();
((PreparedStatement) preparedStmtCache.remove(key)).close();
preparedStmt = connection.prepareCall(sql);
preparedStmtCache.put(sql, preparedStmt);
return (CallableStatement)preparedStmt;
The statements get closed when I close the
connection:
boolean closeStmts = true;
// Close the prepared statements.
Enumeration e = preparedStmtCache.keys();
while (e.hasMoreElements() && closeStmts) {
String key = (String)e.nextElement();
try {
((PreparedStatement)
preparedStmtCache.remove(key)).close();
} catch (SQLException except) {
// Ignore errors, we maybe handling one.
closeStmts = false;
log.write(Logger.NOTICE,
"DBConnection[" + id + "]: " + url +
"\nUnable to close statements. Continuing....\n");
In my classes using database queries I just
use the prepareCall method of DBConnection
and do not have to care about anything.
Works perfectly with the thin driver, but
as soon as I switch to oci... :-|
<BLOCKQUOTE>quote:<HR>Originally posted by JDBC Dev Team:
Soda, Rupper,
Do you mind posting some code that shows us what your code was doing when you notice this leak?
Thanks.<HR></BLOCKQUOTE>
null

How do you install the JDBC-OCI patch for a Windows NT4 IFS Installation?

I am about to install IFS on a Windows NT4 Server. I dont understand the instructions for installing the JDBC-OCI patch.
How do you install the JDBC-OCI drivers?
Do I install them after installing Oracle 8.1.6? and before installing IFS?
Is it necessary to install them?
I would be grateful for as much help as possible, I have never done anything like this before.
[email protected]

<BLOCKQUOTE>quote:<HR>Originally posted by Jaikishan Tada, Oracle Support:
Before installing iFS, you need to install
Oracle8i Client (with Administrator option).
This installs JDBC-OCI driver and other
common Oracle components such as Net8,
OEM ....
The JDBC-OCI driver patch is available from
technet to download. Go to the url - http://technet.oracle.com/software/tech/java/sqlj_jdbc/software_index.htm
and download Oracle8i 8.1.6.0.1 JDBC Drivers for use with JDK 1.1.x.
Apply the patch and carry out iFS installation/configuration.
Go through the iFS installation guide.
Good Luck,<HR></BLOCKQUOTE>
null

Error on NT with 8.1.6 OCI driver and JDK 1.2

I have the error:
"The procedure entry point slzsetevar could not be located in the dynamic link library oracore8.dll"
oracore8.dll is 8.1.5
ocijdbc8.dll is 8.1.6
Any help will be great.
Thanks,
8.1.6 OCI driver with JDK 1.2

when using a jdbc oci driver you must have a matching oracle client installed.
(fyi -- an oem install is not considered to be an oracle client install)
use the jdbc oci 8.1.6 driver only from a platform with the oracle 8.1.6 client installed.
what you've indicated is you're using an 8.1.6 jdbc driver with an 8.1.5 oracle client -- that will not work.
move to an all 816 client and jdbc driver to "synch up" the dll's you mentioned.
null

Oracle Jdbc Thin driver and nls suppot

Hello,
I have a hungarian database with nls_lang variable set to hungarian. I'm trying to do a jdbc connection using classes12.zip
but I'm getting the hungarian characters converted to question marks or other characters.
I read suggestions that I must include the nls_charset12.zip in my classpath too. So I did that but I'm still having the same problem.
What is missed??
How do I get the right hungarian charachters without any conversion.
This is becoming frustrating and I'm not able to solve it yet.
Thanks for your help

One more question -
Can we use Oracle JDBC OCI driver? We do not have any appletes...
Does it have firewall issues too? Is there any other driver that
we can use?
Thanks,
Vijaya.

Oracle JDBC Thin Driver and Firewall Problem

Hi!
We have Oracle 8.1.5 and Websphere App Server. There is a
firewall between the two. A servlet creates a connection pool
(not that of Wesphere's). The frontend is JSP/HTML (no applets).
The servlet uses the Oracle JDBC Thin Driver for DB Connections.
The problem is - Once the connection is freed, the connection
pool is not being able to retrieve it and hence it created
another one, thus reaching the max. # of connections and the
system hangs. Restarting the DB service flushes the connection
and the application starts running again...
There was a similar problem discussed in this forums long ago. I
have not yet tried mentioning the firwall port and IP in the
connection string. But apart from that, is there any other
setting I need to do (on firewall or for the connectionstring)
to deal with this problem?
Someone had suggested to punch a hole in the firewall for the DB
port - but we can not really do that in the current scenario...
I would appreciate if anyone could share their experience
regarding how they resolved this issue.
Thanks in advance,
Vijaya.

One more question -
Can we use Oracle JDBC OCI driver? We do not have any appletes...
Does it have firewall issues too? Is there any other driver that
we can use?
Thanks,
Vijaya.

Execution of first request takes lot of time with JDBC OCI

Hi,
We are having an application which connects to Oracle server(10g Enterprise Edition Release 10.2.0.4.0 64bit) using Oracle JDBC OCI driver(10.2.0.1.0 production (10g R2)).
Everything works fine.
But what we observed is randomly the first request to the server vai JDBC driver in a day takes lot of time, varies from 5-15 minutes.
If we execute the request again it executed immediately
What we observed while debugging is preparedStatement.executeQuery() is taking time.
We enabled logging at the JDBC driver layer and a snapshot isgiven below. Between T2CPreparedStatement.doDefineExecuteFetch () and T2CPreparedStatement.execute_for_rows () it takes 5 minutes. Any idea why it takes this much time and reason for it? Oracle driver is not throwing any exceptions
*4-apr-2011 4:00:01* oracle.jdbc.driver.T2CPreparedStatement doDefineExecuteFetch
FINE: T2CPreparedStatement.doDefineExecuteFetch ()
*4-apr-2011 4:05:12* oracle.jdbc.driver.T2CPreparedStatement executeForRows
FINE: T2CPreparedStatement.execute_for_rows () returns: void
Detailed jdbc log is below
-apr-2011 4:00:01 oracle.jdbc.driver.OracleStatement doExecuteWithTimeout
FINE: OracleStatement.doExecuteWithTimeout() needToPrepareDefineBuffer = false
4-apr-2011 4:00:01 oracle.jdbc.driver.PhysicalConnection needLine
FINE: PhysicalConnection.needLine()--no return
4-apr-2011 4:00:01 oracle.jdbc.driver.PhysicalConnection registerHeartbeat
FINE: PhysicalConnection.registerHeartbeat()
4-apr-2011 4:00:01 oracle.jdbc.driver.OracleStatement executeMaybeDescribe
FINE: OracleStatement.execute_maybe_describe() rowPrefetchChanged = false, needToParse = false, needToPrepareDefineBuffer = false, columnsDefinedByUser = false
4-apr-2011 4:00:01 oracle.jdbc.driver.T2CPreparedStatement executeForRows
FINE: T2CPreparedStatement.execute_for_rows (executed_for_describe = false)
4-apr-2011 4:00:01 oracle.jdbc.driver.T2CPreparedStatement doDefineExecuteFetch
FINE: T2CPreparedStatement.doDefineExecuteFetch ()
4-apr-2011 4:05:12 oracle.jdbc.driver.T2CPreparedStatement executeForRows
FINE: T2CPreparedStatement.execute_for_rows () returns: void
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleStatement executeMaybeDescribe
FINE: OracleStatement.execute_maybe_describe():return validRows = 1, needToPrepareDefineBuffer = false
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleStatement doExecuteWithTimeout
FINE: OracleStatement.doExecuteWithTimeout():return validRows = 1, needToPrepareDefineBuffer = false
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl next
FINE: OracleResultSetImpl.next(): closed=false
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl next
FINER: closed=false, statement.currentRow=-1, statement.totalRowsVisited=0, statement.maxRows=0, statement.validRows=1, statement.gotLastBatch=true
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl getString
INFO: OracleResultSetImpl.getString(columnIndex=1)
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl getString
INFO: OracleResultSetImpl.getString(columnIndex=2)
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl getString
INFO: OracleResultSetImpl.getString(columnIndex=3)
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl getTimestamp
INFO: OracleResultSetImpl.getTimestamp(columnIndex=4)
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl wasNull
INFO: OracleResultSetImpl.wasNull()
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl next
FINE: OracleResultSetImpl.next(): closed=false
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl next
FINER: closed=false, statement.currentRow=0, statement.totalRowsVisited=1, statement.maxRows=0, statement.validRows=1, statement.gotLastBatch=true
4-apr-2011 4:05:12 oracle.jdbc.driver.PhysicalConnection needLine
FINE: PhysicalConnection.needLine()--no return
4-apr-2011 4:05:12 oracle.jdbc.driver.T2CPreparedStatement closeQuery
FINE: T2CPreparedStatement.closeQuery ()
4-apr-2011 4:05:12 oracle.jdbc.driver.T2CPreparedStatement closeQuery
FINE: T2CPreparedStatement.closeQuery () returns: void
4-apr-2011 4:05:12 oracle.jdbc.driver.OracleResultSetImpl close
INFO: OracleResultSetImpl.close()
Regards
Sunil

Hi,
Thanks for the reply
- SQL may vary. Its not the same query which takes time always. The same query executed immediately(using another connection from pool) works perfectly
- If there is a failover or stale connection getting closed or timeout, will JDBC driver thhrows exdeption? I didn't see any exceptions in the driver logs. Is there anyway to identify whether failover or timeout is happening?
Some other points
- The application uses connection pooling. This means that connections are created in the beginning and kept in the pool. And it may be in the pool for 72 hours or , before this issue happens
- Application uses prepared statements and the statements are preapred and kept and re used later. So the query which take s more time might be prepared before 48 hours or so.
- This is not happening every day. Many times the pattern is , it happens after 60-72 hours after application is started.
Sunil

JDBC-OCI (8.1.6) - Weblogic

Hi,
I am trying to get weblogic 4.5 to connect to an Oracle 8i database.
The database and listener are operating fine, but so far I cannot connect from weblogic.
1) What type is the JDBC-OCI driver for 8.1.6 (supporting JDK 1.2)?
2) Do I need to install the OCI driver as well as the JDBC driver on the weblogic server? If so, where do I get the OCI driver?
Regards,
Ultan
[email protected]

Your questions are confusing. You seem to consider OCI Driver and JDBC Driver as 2 versions of drivers, but in reality the former is a type of the latter.
Oracle supplies 2 types of JDBC drivers, i.e., Type II, or the OCI driver, and Type IV, the Thin driver. They are both contained in the classes111 or classes12.zip file. To use the OCI driver, you need to install the Oracle Client Library (OCI library).
To use these drivers with WebLogic, you need to include the path to the classes111.zip file in your weblogic.class.path variable in the startWebLogic.bat or .sh script file, or set it in the Windows Registry.
Eric Ma

8.1.6 Oracle JDBC-OCI for NT availability

Hi. Does anyone know when the 8.1.6 JDBC-OCI driver for NT is coming out? I've read on previous posts that it will use JNI version older than NMI so it will work with development tools like Visual Age and with MS VM. It will be JDK 1.2.x compliant.
If anyone knows when it comes out, please post. The Solaris version has been out for a while now.
Thanks in advance.

I head that the NT 8.1.6 release was delayed a bit more, possibly until March 2000 time frame.

ORA-24327 with OCI driver

Hi,
We noticed that when we use the OCI driver for Oracle 8.1.7, we cannot have
an initial connection pool size greater than 249. On the 250th one, there is
a DBMS exception (ORA-24327) and weblogic says that it cannot create the
connection.
If we move to the Thin driver, there is no longer this restriction and we've
tried it with success with more than 550 connections.
Anyone know any limitation about the OCI driver and if there is any
parameter on the OCI driver side or on the DB side to tune so that we can
have more than 249 connections in our pool ?
FI, we have the following configuration (in config.xml) :
<JDBCConnectionPool CapacityIncrement="5"
Name="imJDBCConnectionPool" Targets="imadmin"
DriverName="weblogic.jdbc.oci.Driver" URL="jdbc:weblogic:oracle"
InitialCapacity="270" MaxCapacity="270"
TestTableName="dual" RefreshMinutes="40"
ShrinkingEnabled="false" ShrinkPeriodMinutes="15"
Properties="user=im;password=im;server=im09"/>
and we have the following TNSNAMES.ORA :
IM09.IM =
(DESCRIPTION =
(failover = on)
(ADDRESS = (PROTOCOL = TCP)(HOST = sf1-domaina-1)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = sf1-domainb-1)(PORT = 1521))
(CONNECT_DATA = (SERVICE_NAME = IM09.im)(SERVER = shared))
and SQLNET.ORA (to resolve the IM domain name) :
NAMES.DEFAULT_DOMAIN=IM
Thanks
-Vincent

Vincent Massol wrote:
>
"Slava Imeshev" <[email protected]> wrote in message
news:[email protected]...
Hi Vincent,
Just for curiosity sake, what are you doing with 250 connections?
It's not in the Cactus area, is it? :-)
grin ;-)
No, I'm currently working for a customer, doing some lab performance tests.
We wanted to use the OCI driver for the TAF feature of OPS (transparent
application failover) but found that the Thin driver is performing so much
better that we have switched to using it along with the multipool feature of
WebLogic. Hi. Beware of 'TAF'. Note that all cursors will be defunct on failover,
so any JDBC statement or ResultSet in progress at the time of failover will
be lost. (IE: not at all transparent).
Joe
We haven't done any failover test yet so we don't know yet how the
multipool (with a 'load-balancing' strategy) perform upon failover of one
instance. If it's ok we'll keep using the thin driver. If not, we'll switch
back to OCI drivers and try the TAF feature.
Also, I don't think we really need that big number of connections. It seems
we had some other performance issue which the DB which was making us use
lots of connections on the WL side. With the thin driver we're only using
about 39-100 connections maximum with a thread count of 40 (that's because a
given message does up to 3 SQL statements per transaction (and a connection
is only effectively released in the pool after the commit)).
I've introduced Cactus on the project, of course, but only for the unit
tests (I'm also using Mock Objects) ... :-)
Regards,
-Vincent
Regards,
Slava Imeshev
"Vincent Massol" <[email protected]> wrote in message
news:[email protected]...
Hi,
We noticed that when we use the OCI driver for Oracle 8.1.7, we cannothave
an initial connection pool size greater than 249. On the 250th one,
there
is
a DBMS exception (ORA-24327) and weblogic says that it cannot create the
connection.
If we move to the Thin driver, there is no longer this restriction andwe've
tried it with success with more than 550 connections.
Anyone know any limitation about the OCI driver and if there is any
parameter on the OCI driver side or on the DB side to tune so that we
can
have more than 249 connections in our pool ?
FI, we have the following configuration (in config.xml) :
<JDBCConnectionPool CapacityIncrement="5"
Name="imJDBCConnectionPool" Targets="imadmin"
DriverName="weblogic.jdbc.oci.Driver" URL="jdbc:weblogic:oracle"
InitialCapacity="270" MaxCapacity="270"
TestTableName="dual" RefreshMinutes="40"
ShrinkingEnabled="false" ShrinkPeriodMinutes="15"
Properties="user=im;password=im;server=im09"/>
and we have the following TNSNAMES.ORA :
IM09.IM =
(DESCRIPTION =
(failover = on)
(ADDRESS = (PROTOCOL = TCP)(HOST = sf1-domaina-1)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = sf1-domainb-1)(PORT = 1521))
(CONNECT_DATA = (SERVICE_NAME = IM09.im)(SERVER = shared))
and SQLNET.ORA (to resolve the IM domain name) :
NAMES.DEFAULT_DOMAIN=IM
Thanks
-Vincent
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