Error: Creating a Connection Pool: issue with valid transaction levels

Server: SunOS 5.8 Generic_117350-27 sun4u sparc SUNW,UltraAX-MP
App Server: Sun Java System Application Server 8.2
Jar: ojdbc14.jar
Datasource Classname: oracle.jdbc.pool.OracleConnectionPoolDataSource
Resource Type: javax.sql.ConnectionPoolDataSource
[Issue]
Using /SUNWappserver/lib/ojdbc14.jar, when I create my connection pool in Sun Java System Application Server 8.2, I return the following error each time I try to start the domain:
[#|2006-07-28T14:53:56.169-0500|WARNING|sun-appserver-pe8.2|javax.enterprise.resource.resourceadapter|_ThreadID=11;|RAR5117 : Failed to obtain/create connection. Reason : The isolation level could not be set: READ_COMMITTED and SERIALIZABLE are the only valid transaction levels|#]
When I change the value to "SERIALIZABLE" in my domain.xml file, I receive the following error in my server.log:
Caused by: org.xml.sax.SAXParseException: Attribute "transaction-isolation-level" with value "SERIALIZABLE" must have a value from the list "read-uncommitted read-committed repeatable-read serializable ".
So, I'm stuck!
I can't use the values READ_COMMITTED or SERIALIZABLE since the valid values are "read-uncommitted read-committed repeatable-read serializable ".
Case sensitivity matters.
Any thoughts or help would be greatly appreciated.
Thanks,
--Todd

The Oracle JDBC accepts TRANSACTION_READ_COMMITTED and TRANSACTION_SERIALIZABLE isolation levels.
Example:
connAttr.setProperty(“TRANSACTION_ISOLATION”, “TRANSACTION_SERIALIZABLE”);
I'd check with the Apps server folks.
Kuassi - blog http://db360.blogspot.com/
------ book http://www.amazon.com/gp/product/1555583296/

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"Robert Towler" <[email protected]> wrote in message
news:3dd3ea04$[email protected]..
Thanks Slava, you were correct,
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Regards,
Slava Imeshev
"Slava Imeshev" <[email protected]> wrote:
Hi Robert,
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Hi. Something is seriously ill there. I would ask that you post a full thread dump
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Message was edited by:
java_2006

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Jacky Ho wrote:
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Oralce JDBC Drivers: 11.1.0.7.0-Production (ojdbc6.jar and orai18n.jar)
JDK 1.6
Usually, just for creating a connection to my database (without using a connection pool), I proceed in the following way:
String dbURL = "jdbc:oracle:thin:@localhost:1521:database01";
String username = "scott";
String user_password = "tiger";
String userSqlQuery = "SELECT * FROM mytable";
Connection connection = DriverManager.getConnection (dbURL, username, user_password);
Statement statement = connection.createStatement();
statement.executeUpdate(query_text);This works pretty well allowing to communicate with my oracle database. By this method I have run several projects
with different queries (SELECT, INSERT, UPDATE, DELETE ,etc.) and each time it worked without any problem and
returned the result of the query. Therefore I think that there is no problem with JDBC drivers
However, when I want to create a connection pool, it seems that the lookup method cannot locate Oracle JDBC drivers. That is,
try
     InitialContext ic = new InitialContext();
     Context envContext = (Context)ic.lookup("java:/comp/env");
     dataSource = (DataSource)envContext.lookup("jdbc/oracle11gEnterprise");
       Connection connection = dataSource.getConnection();
catch (Exception e)
     e.printStackTrace();
}Just after calling dataSource.getConnection() the java.lang.NullPointerException is thrown.
Any idea?
Thanks in advance,
And for your information, here are context.xml and web.xml files for my project
Here is my context.xml
<?xml version="1.0" encoding="UTF-8"?>
<Context antiJARLocking="true" path="/WebApplication1">
    <Resource name="jdbc/oracle11gEnterprise"
          scope="Shareable"
          type="javax.sql.DataSource"
          auth="Container"
          description="Oracle Database 11g Enterprise"
          maxActive="100"
          maxIdle="30"
          maxWait="10000"
          removeAbandoned="true"
          removeAbandonedTimeout="60"
          logAbandoned="true"
          url="jdbc:oracle:thin:@localhost:1521:database01"
          username="scott"
          password="tiger" />
</Context>my web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <ConsumeOutput>false</ConsumeOutput>
    <resource-ref>
        <res-ref-name>jdbc/oracle11gEnterprise</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>
    

nobody?

Problem creating a connection pool for mssql server

Hi
i downloaded the microsoft type 4 driver for JDBC and i have installed it. now i am trying to create a connection pool for MS Sql server but each time i ping i keep getting an error telling me
Operation 'pingConnectionPool' failed in 'resources' Config Mbean. Target exception message: Connection could not be allocated because: [Microsoft][SQLServer 2000 Driver for JDBC]Error establishing socket
please can someone help out on this
Ifeanyichukwu

I assume that you installed the driver correctly. You did go into the app sever admin and set the JVM path? You do this by going to Application Server | JVM Settings | Path Settings and putting in an entry for Classpath Prefix.
If that is done and it's not something basic like your database isn't turned on, then it must be your settings. To to Sun's site and search for dbping. http://developers.sun.com/prodtech/appserver/utilities/dbping/dbping_overview.html
Deploy this program and run it. It is a very simple tool that lets you test different property settings. Play around with different settings until you get a ping.
If that doesn't work post your connect pool settings.
Good luck
Mike

How to create a connection pooling in Netbeans 6.0 using the oracle driver

hi all,
I am using Netbeans 6.0. Apache Tomcat 6.0.14 server, oracle 9i.
I tried to create a connection pooling using tomcat web server.
I have included the following code in context.xml and web.xml.
CONTEXT.XML:
<?xml version="1.0" encoding="UTF-8"?>
<Context path="/network1">
<Resource name="jdbc/myoracle"
auth="Container"
type="javax.sql.DataSource"
username="scott"
password="tiger"
factory="BasicDataSourceFactory"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:odbc:thin:@127.0.0.1:1521:mydb"
maxActive="20"
maxIdle="10"
maxwait="-1"/>
</Context>
WEB.XML:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<resource-ref>
<description>Oracle Datasource example</description>
<res-ref-name>jdbc/myoracle</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
After that i have included the following JDBC driver's jar files in the $Catalina_Home/lib folder.
classes 111.jar,
classes 111_g.jar
classes12.jar
classes 12_g.jar
classes12dms.jar
classes12dms_g.jar
nls_charset11.jar
nls_charset12.jar
ocrs12.jar
ojdbc14.jar
ojdbc14_g.jar
Then i stop the tomcat web server and start it again.
In jsp page i have included the following code:
Context ctx=new InitialContext();
Context envctx=(Context)ctx.lookup("java:comp:env");
DataSource ds=(DataSource)envctx.lookup("jdbc/myoracle");
Connection con=ds.getConnection(); ----->(In this line an error occured that Connection class cannot be found.)
please help me how to create a connection pooling and rectify the error in conneciton.
Thanks in advance

Please refer
http://www.netbeans.org/kb/60/web/customer-book.html

How to Create a connection pool in OSB java callout

Dear Team,
In our project, we need read some data from DB, and do corresponding operation. currently, we need setup the connection first, execute the SQL, and close the connection.
But the concurrency of call is very high, is there a way to create a connection pool, then we can use the connection pool to get the connection and execute the SQL, then return the connection to the pool.
if connection pool is not available, is there any way to create the connection outside the java callout, that we can just execute the SQL in java callout.
The OSB version is 11.1.1.6.0
Thanks.
Best Regards,
Raysen Jia
Edited by: Raysen Jia on Oct 16, 2012 8:44 AM

Hi Team,
Thanks for your help.
What I need is not only the db connection, may be other kind of things, such as read configuration from file...
If I write the code in java callout with static java method to create and close the connection, each time when request come in, OSB will create a new connection (or read the file), I think it's not the best practice to do this kind of work.
I think the weblogic is running in JVM, is there any way we can define variables or new object in the JVM directly?

Error using mySQL connection Pool

I see the following error when my application uses the connection pool - can anyone explain this ?
INFO: CORE3282: stdout: =======================>ERROR :com.sun.enterprise.repository.J2EEResourceException
WARNING: CORE3283: stderr: at com.sun.enterprise.resource.IASNonSharedResourcePool.initPool(IASNonSharedResourcePool.java:416)
WARNING: CORE3283: stderr: at com.sun.enterprise.resource.IASNonSharedResourcePool.internalGetResource(IASNonSharedResourcePool.java:625)
WARNING: CORE3283: stderr: at com.sun.enterprise.resource.IASNonSharedResourcePool.getResource(IASNonSharedResourcePool.java:520)
INFO: CORE3282: stdout: java.lang.NoSuchMethodException: setdataSourceName

Hi,
You have used dataSourceName property while creating a connection pool.This property is not required to be set while creating a connection pool for MySql
Use the following properties:
<property name="serverName" value="<name of server>"
<property name="port" value="<port number>"
<property name="DatabaseName" value="<your db name>"
<property name="User" value="<user name>"
<property name="Password" value="<passwd>"
Get back in case of any issues

Error: Creating a Connection Pool: issue with valid transaction levels

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