J2EE Connection pooling
Does anybody know how to configure Kodo to use the datasources previously
created in JBoss? I'd like to delegate the connection pooling management to
the appserver instead of Kodo's PersistenceManager.
Thanks
Arthur
Arthur-
If an instance of javax.sql.DataSource is being bound into JNDI in your
appserver, you can just specify the ConnectionFactoryName property in
the PersistenceManagerFactory, and the DataSource should be looked up
and used (from within the appserver).
If you are manually binding Kodo into JNDI, the mechanism would be:
PersistenceManagerFactory pmf;
pmf.setConnectionFactoryName ("myDataSourceJNDIName");
Note that this is technically unsupported, since it is not compliant
with the 1.0 spec (the ConnectionFactoryName should refer to a JCA
Connection, not a DataSource): it may change in the near future.
Arthur Cattaneo Zavadski <[email protected]> wrote:
Does anybody know how to configure Kodo to use the datasources previously
created in JBoss? I?d like to delegate the connection pooling management to
the appserver instead of Kodo?s PersistenceManager.
Thanks
Arthur--
Marc Prud'hommeaux [email protected]
SolarMetric Inc. http://www.solarmetric.com
Kodo Java Data Objects Full featured JDO: eliminate the SQL from your code
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please tell me the possible errornow, i have installed j2ee 1.5 bundled version. Now i have tried the same thing. nut it is giving an error "sun.jdbc.odbc.JdbcOdbcDriver canot be cast to javax.sql.XADataSource".
Now, i have downloaded Microsoft jdbc Driver for SQL Server 2000 and set the classpath for those three files that comes under the lib folder. Then i used "com.microsoft.jdbcx.sqlserver.SQLServerDataSource" class, then another error comes "Class not found or classpath is not set for "com.microsoft.jdbcx.sqlserver.SQLServerDataSource" class.
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Datasource Connection Pooling - Per environment or per J2EE node?
Hi all,
I have a question about the JDBC service regarding the connection pooling.
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Robin van het HofHi Dagfinn,
The below mentioned exception is thrown the most:
[code]
com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew#sap.com/irj#com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew#Niels.Dijksman#502#####Thread[PRT-Async 16,5,PRT-Async]##0#0#Fatal##Plain###Unable to execute query: /* com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew */SELECT NVL(WWW, 'Y') FROM PROVISIONING.SHELLDETAILS WHERE SAMACCOUNTNAME = ?, cause: Closed Connection#
at com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew.doMasterQuery(JDBCEmployeeServiceNew.java:410)#
at com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew.internalGetProperty(JDBCEmployeeServiceNew.java:361)#
at com.shell.gep.service.employee.jdbc.JDBCEmployeeServiceNew.getProperty(JDBCEmployeeServiceNew.java:66)#
at com.shell.gep.service.employee.AggregatedEmployeeService.getProperty(AggregatedEmployeeService.java:153)#
at com.shell.gep.service.employee.AggregatedEmployeeService.getProperty(AggregatedEmployeeService.java:153)#
at com.shell.gep.service.employee.EmployeeServiceImpl.getProperty(EmployeeServiceImpl.java:116)#
at com.shell.gep.news.iviews.dynpage.NewsDynPage.getMyExternal(NewsDynPage.java:143)#
at com.shell.gep.news.iviews.dynpage.NewsDynPage.doProcessBeforeOutput(NewsDynPage.java:114)#
at com.sapportals.htmlb.page.PageProcessor.handleRequest(PageProcessor.java:123)#
at com.sapportals.portal.htmlb.page.PageProcessorComponent.doContent(PageProcessorComponent.java:134)#
at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:209)#
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at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)#
at com.sapportals.portal.prt.core.async.AsyncIncludeRunnable$1$DoDispatchRequest.run(AsyncIncludeRunnable.java:377)#
at java.security.AccessController.doPrivileged(Native Method)#
at com.sapportals.portal.prt.core.async.AsyncIncludeRunnable.run(AsyncIncludeRunnable.java:390)#
at com.sapportals.portal.prt.core.async.ThreadContextRunnable.run(ThreadContextRunnable.java:164)#
at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(PooledExecutor.java:729)#
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java.sql.SQLException: Closed Connection#
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)#
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)#
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[/code]
So it apears it's an Oracle problem rather than a SAP problem indeed -
SAP J2EE 6.20 DB Connection Pool Strangeness
Has anyone seen a problem with the SAP J2EE dbpool service whereby no matter how big the connection pool is set to be only a single connection ever seems to be used by applications ?
This is clustered SAP J2EE SP18 (67440.20) connection to an AS/400 using the IBM jt400 driver.
Bizarrely similar applications using a different connection pool (but the same driver and back end AS/400) continue to work as normal - creating multiple "used" connections as and when required.
Many thanks for any pointers !!used SQL tool to migrate.
used SAP note : 1271375 -
Hello,
I am trying to create a mysql connection pool using the admin console. The mysql JDBC driver is located in <install_dir>/domains/domain1/lib/ext.
For Datasource Classname I use com.mysql.jdbc.jdbc2.optional.MysqlDataSource
A ping results in:
Operation 'pingConnectionPool' failed in 'resources' Config Mbean. Target exception message: Connection could not be allocated because: null, message from server: "Host 'localhost.localdomain' is not allowed to connect to this MySQL server"
When changing the URL property to localhost a ping results in:
Operation 'pingConnectionPool' failed in 'resources' Config Mbean. Target exception message: Connection object cannot be null
Any ideas about what goes wrong?
Thanks...I did a simple php test:
<?php
mysql_connect("localhost.localdomain", "user", "pass") or die(mysql_error());
echo "Connected to MySQL<br />";
?>
This results in:
Warning: mysql_connect(): Host 'localhost.localdomain' is not allowed to connect to this MySQL server in /var/www/mathesis/mambo/mysql.php on line 2
Host 'localhost.localdomain' is not allowed to connect to this MySQL server
<?php
mysql_connect("localhost", "user", "pass") or die(mysql_error());
echo "Connected to MySQL<br />";
?>
results in: Connected to MySQL
So I see two possible solutions:
1) Make the appserver use localhost instead of localhost.localdomain (specifying localhost as property doesn't work!).
2) Make MySQL accept localhost.localdomain connections.
For both possible solutions I'm searching for answers...
-Michael -
Dynamic Connection Pool Creation Failing in a cluster
Hi,
I am trying to create a connection pool in a clustered environment. This connection
pool is created lazily behind a Stateless Session Bean. We first attempt to determine
whether, the connection pool exists using JdbcServices.poolExists(someName), and
create it if it does not exist. A failure occurs on creation because it looks
like the connection pool might have been created by a bean on a different weblogic
VM instance. Is there any way to dynamically create a connection pool and make
it visible to the whole cluster? Thanks in advance for any help. Michael Dolbear
Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence of connection pool
Content
ConnectionPool requested by user guest>
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection pool ContentConnectionPoo
l requested by user guest>
weblogic.common.ResourceException: weblogic.management.MBeanCreationException:
Start server side stack trace:
javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:134)
at com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.java:
2352)
at com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:874)
at weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBeanSer
verImpl.java:181)
at weblogic.management.internal.Helper.createMBean(Helper.java:376)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.management.MBeanCreationException: - with nested exception:
[javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool]
at weblogic.management.internal.Helper.createMBean(Helper.java:383)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
- with nested exception:
[javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool
Start server side stack trace:
javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:134)
at com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.java:
2352)
at com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:874)
at weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBeanSer
verImpl.java:181)
at weblogic.management.internal.Helper.createMBean(Helper.java:376)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
at weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.java:47
2)
at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:727
at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:709
at com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.createConne
ctionPool(ConnectionPoolCreator.java:82)
at com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnectionPoo
lIfNonExistent(DataStoreRepository.java:211)
at com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createConnec
tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.create
ConnectionPoolIfNeeded(Unknown Source)
at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.getIma
ge(Unknown Source)
at com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unknown
Source)
at java.lang.reflect.Method.invoke(Native Method)
at com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescriptio
n.java:181)
at com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.java:7
9)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.java:
186)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invoke(Ser
viceBean_bjedmi_EOImpl.java:37)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSkel.inv
oke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence of connection
pool Content
ConnectionPool requested by user guest>
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection pool ContentConnectionPoo
l requested by user guest>
weblogic.common.ResourceException: weblogic.management.MBeanCreationException:
Start server side stack trace:
javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:134)
at com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.java:
2352)
at com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:874)
at weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBeanSer
verImpl.java:181)
at weblogic.management.internal.Helper.createMBean(Helper.java:376)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.management.MBeanCreationException: - with nested exception:
[javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool]
at weblogic.management.internal.Helper.createMBean(Helper.java:383)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
- with nested exception:
[javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool
Start server side stack trace:
javax.management.InstanceAlreadyExistsException: domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:134)
at com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.java:
2352)
at com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:874)
at weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBeanSer
verImpl.java:181)
at weblogic.management.internal.Helper.createMBean(Helper.java:376)
at weblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(RemoteMBean
ServerImpl.java:278)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
635)
at weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.java:
621)
at weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBeanHome
Impl.java:397)
at weblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
at weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.java:47
2)
at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:727
at weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.java:709
at com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.createConne
ctionPool(ConnectionPoolCreator.java:82)
at com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnectionPoo
lIfNonExistent(DataStoreRepository.java:211)
at com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createConnec
tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.create
ConnectionPoolIfNeeded(Unknown Source)
at com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.getIma
ge(Unknown Source)
at com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unknown
Source)
at java.lang.reflect.Method.invoke(Native Method)
at com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescriptio
n.java:181)
at com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.java:7
9)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.java:
186)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invoke(Ser
viceBean_bjedmi_EOImpl.java:37)
at com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSkel.inv
oke(Unknown Source)
at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:93
at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267)
at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:22)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)The only way to do it is using MBeans. You could search this newsgroup
for "JDBCConnectionPoolMBean" to get an idea of how it could be done.
Slava
P.S. http://search.bea.com/weblogic/gonews
"Mark Mortensen" <[email protected]> wrote in message
news:[email protected]...
>
Slava,
I am working with Mike on this issue and wanted to add some moreclarifications.
We have a two server cluster where one of the EJB's on one of the Managedservers
creates the connection pool. The problem comes in when a request comes tothe
second server in the cluster. The connection pool is created by the firstserver
but it is only assigned to the first server in the targets section on theconsole.
It isn't assigned to the cluster. Is there a way to programmaticallyassign the
pool to the cluster instead of just the server that created the pool?
-Mark
"Michael Dolear" <[email protected]> wrote:
Hi Slava,
Here is what I am doing. The code is spread across a couple of classes.
I am using
what was described in BEA's doc on dynamic connection pool creation.
I didn't
see anything about MBean apis required:
* Dynamically create a connection pool using
aConnectionPoolProperties.
Please
see ConnectionPoolCreator
* for the required properties that must be sent in.
* @param aConnectionPoolProperties
public synchronized void createConnectionPoolIfNonExistent(Properties
aConnectionPoolProperties)
throwsPersistenceFrameworkInitializationException
ConnectionPoolCreator tempPoolCreator;
Pool tempPool;
tempPoolCreator = new ConnectionPoolCreator();
tempPool =tempPoolCreator.getConnectionPool(aConnectionPoolProperties);
if (tempPool == null)
tempPoolCreator.createConnectionPool(aConnectionPoolProperties);
>>
* Create Connection pool given the properties that I have beenconfigured
with
* @return Pool
public Pool createConnectionPool(Properties aConnectionProperties)
throwsPersistenceFrameworkInitializationException
JdbcServices tempServices;
try
tempServices = this.lookupJdbcServices();
tempServices.createPool(aConnectionProperties);
returntempServices.getPool(aConnectionProperties.getProperty(CONNECTION_POOL_NAME)
catch (Exception e)
PersistenceFrameworkUtils.logException(e);
throw newPersistenceFrameworkInitializationException(e.getMessage());
* Answer a connectionPool or null.
* @return Pool
public Pool getConnectionPool(Properties aConnectionProperties)
throwsPersistenceFrameworkInitializationException
JdbcServices tempServices;
try
tempServices = this.lookupJdbcServices();
if (tempServices.poolExists(
aConnectionProperties.getProperty(CONNECTION_POOL_NAME)))
return tempServices.getPool(
aConnectionProperties.getProperty(CONNECTION_POOL_NAME));
else
return null;
catch (Exception e)
PersistenceFrameworkUtils.logException(e);
throw
newPersistenceFrameworkInitializationException(e.getMessage());
"Slava Imeshev" <[email protected]> wrote:
Hi Michael,
Could you show us the code? Without looking at the code
I can only say that JdbcServices.poolExists(someName)
returns true only in case the pool is up and running.
If the connection pool MBean was created but not assigned
a target, subsequent tries to create it would fail.
Regards,
Slava Imeshev
"Michael Dolbear" <[email protected]> wrote in message
news:[email protected]...
Hi,
I am trying to create a connection pool in a clustered environment.This
connection
pool is created lazily behind a Stateless Session Bean. We first
attempt
to determine
whether, the connection pool exists usingJdbcServices.poolExists(someName), and
create it if it does not exist. A failure occurs on creation becauseit
looks
like the connection pool might have been created by a bean on a
different
weblogic
VM instance. Is there any way to dynamically create a connection pooland
make
it visible to the whole cluster? Thanks in advance for any help.
Michael
Dolbear
Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence ofconnection pool
Content
ConnectionPool requested by user guest>
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection poolContentConnectionPoo
l requested by user guest>
weblogic.common.ResourceException:weblogic.management.MBeanCreationException:
Start server side stack trace:
javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at
com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
34
at
com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
ja
va:
2352)
at
com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
87
4)
at
weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
an
Ser
verImpl.java:181)
atweblogic.management.internal.Helper.createMBean(Helper.java:376)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.management.MBeanCreationException: - with nested exception:
[javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool]
atweblogic.management.internal.Helper.createMBean(Helper.java:383)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
- with nested exception:
[javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool
Start server side stack trace:
javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at
com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
34
at
com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
ja
va:
2352)
at
com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
87
4)
at
weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
an
Ser
verImpl.java:181)
atweblogic.management.internal.Helper.createMBean(Helper.java:376)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
at
weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.ja
va
:47
2)
at
weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
a:
727
at
weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
a:
709
at
com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.create
Co
nne
ctionPool(ConnectionPoolCreator.java:82)
at
com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnecti
on
Poo
lIfNonExistent(DataStoreRepository.java:211)
at
com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createC
on
nec
tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
at
com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.c
re
ate
ConnectionPoolIfNeeded(Unknown Source)
at
com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.g
et
Ima
ge(Unknown Source)
at
com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unk
no
wn
Source)
at java.lang.reflect.Method.invoke(Native Method)
at
com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescr
ip
tio
n.java:181)
at
com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.j
av
a:7
9)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.
ja
va:
186)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invok
e(
Ser
viceBean_bjedmi_EOImpl.java:37)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSke
l.
inv
oke(Unknown Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.ja
va
:93
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Checking existence ofconnection
pool Content
ConnectionPool requested by user guest>
<Mar 28, 2002 5:35:08 PM MST> <Info> <JDBC> <Creating connection poolContentConnectionPoo
l requested by user guest>
weblogic.common.ResourceException:weblogic.management.MBeanCreationException:
Start server side stack trace:
javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at
com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
34
at
com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
ja
va:
2352)
at
com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
87
4)
at
weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
an
Ser
verImpl.java:181)
atweblogic.management.internal.Helper.createMBean(Helper.java:376)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
--------------- nested within: ------------------
weblogic.management.MBeanCreationException: - with nested exception:
[javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool]
atweblogic.management.internal.Helper.createMBean(Helper.java:383)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
- with nested exception:
[javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=J
DBCConnectionPool
Start server side stack trace:
javax.management.InstanceAlreadyExistsException:domain:Name=ContentConnectionPool,Type=JD
BCConnectionPool
at
com.sun.management.jmx.RepositorySupport.addMBean(RepositorySupport.java:1
34
at
com.sun.management.jmx.MBeanServerImpl.internal_addObject(MBeanServerImpl.
ja
va:
2352)
at
com.sun.management.jmx.MBeanServerImpl.registerMBean(MBeanServerImpl.java:
87
4)
at
weblogic.management.internal.RemoteMBeanServerImpl.registerMBean(RemoteMBe
an
Ser
verImpl.java:181)
atweblogic.management.internal.Helper.createMBean(Helper.java:376)
atweblogic.management.internal.Helper.createAdminMBean(Helper.java:291)
at
weblogic.management.internal.RemoteMBeanServerImpl.createAdminMBean(Remote
MB
ean
ServerImpl.java:278)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
635)
at
weblogic.management.internal.MBeanHomeImpl.createAdminMBean(MBeanHomeImpl.
ja
va:
621)
at
weblogic.management.internal.AdminMBeanHomeImpl.createAdminMBean(AdminMBea
nH
ome
Impl.java:397)
atweblogic.management.internal.AdminMBeanHomeImpl_WLSkel.invoke(Unknown
Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
End server side stack trace
at
weblogic.jdbc.common.internal.ConnectionPool.dynaStartup(ConnectionPool.ja
va
:47
2)
at
weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
a:
727
at
weblogic.jdbc.common.internal.ConnectionPool.createPool(ConnectionPool.jav
a:
709
at
com.thc.ids.inf.framework.opf.rdbms.datastore.ConnectionPoolCreator.create
Co
nne
ctionPool(ConnectionPoolCreator.java:82)
at
com.thc.ids.inf.framework.opf.datastore.DataStoreRepository.createConnecti
on
Poo
lIfNonExistent(DataStoreRepository.java:211)
at
com.thc.ids.inf.util.persistence.content.ConnectionPoolInitializer.createC
on
nec
tionPoolIfNeeded(ConnectionPoolInitializer.java:48)
at
com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.c
re
ate
ConnectionPoolIfNeeded(Unknown Source)
at
com.thc.ids.inf.services.business.crs.spi.oracle.OracleRetrievalProvider.g
et
Ima
ge(Unknown Source)
at
com.thc.ids.inf.services.business.crs.ContentRetrievalService.getImage(Unk
no
wn
Source)
at java.lang.reflect.Method.invoke(Native Method)
at
com.thc.ids.inf.util.reflection.MethodDescription.invokeMethod(MethodDescr
ip
tio
n.java:181)
at
com.thc.ids.inf.util.reflection.MethodInvocation.invoke(MethodInvocation.j
av
a:7
9)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean.invoke(ServiceBean.
ja
va:
186)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl.invok
e(
Ser
viceBean_bjedmi_EOImpl.java:37)
at
com.thc.ids.inf.framework.service.J2EE.ejb.ServiceBean_bjedmi_EOImpl_WLSke
l.
inv
oke(Unknown Source)
atweblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:298)
at
weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.ja
va
:93
at
weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:267
at
weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java
:2
2)
at
weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120) -
ORABPEL START-UP ERROR!!!!!!!! - Connection Pool Deployment failure
I have installed BPEL Process Manager with Weblogic 8.1SP4.
I am using Oracle Database 9.2.0.5.0 for Oracle BPEL Process
Manager installation.
Also i have made following changes for JDBC thin driver accordingly.
<JDBCConnectionPool CapacityIncrement="2"
DriverName="oracle.jdbc.OracleDriver"
MaxCapacity="15" LoginDelaySeconds="1"
Name="BPELServerPool"
ShrinkPeriodMinutes="15"
ShrinkingEnabled="true" SupportsLocalTransaction="true"
Targets="orabpelServer"
URL="jdbc:oracle:thin:orabpel/orabpel_password@hostname:port:database_servoce_
name"/>
I m getting following error while starting the server :-
Connection Pool "BPELServerPool" deployment failed with the following error: 0:Could not create pool connection. The DBMS driver exception was: invalid arguments in call.
Also I m getting following error during startup
ORABPEL-04076
Cannot lookup jdbc datasource.
The process domain was unable to lookup the TX datasource "BPELServerDataSourceWorkflow".
Please check that the machine hosting the datasource is physically connected to the network. Additionally check that the connection pool properties as defined in the application server startup properties are valid.
at com.collaxa.cube.engine.data.ConnectionFactory$ConnectionFactoryImpl.init(ConnectionFactory.java:268)
at com.collaxa.cube.engine.data.ConnectionFactory.update(ConnectionFactory.java:54)
at com.collaxa.cube.engine.data.ConnectionFactory.init(ConnectionFactory.java:42)
at com.collaxa.cube.admin.data.ServerConnectionFactory.init(ServerConnectionFactory.java:34)
at com.collaxa.cube.admin.adaptors.ServerAdaptorManager.init(ServerAdaptorManager.java:66)
at com.collaxa.cube.admin.ServerManager.__init(ServerManager.java:211)
at com.collaxa.cube.admin.ServerManager.init(ServerManager.java:99)
at com.collaxa.cube.ejb.impl.ServerBean.init(ServerBean.java:200)
at com.collaxa.cube.ejb.impl.ServerBean_g9inc6_EOImpl.init(ServerBean_g9inc6_EOImpl.java:856)
at com.collaxa.cube.admin.CXLoaderServlet.init(CXLoaderServlet.java:62)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at weblogic.servlet.internal.ServletStubImpl$ServletInitAction.run(ServletStubImpl.java:1028)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:904)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:883)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:822)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:3333)
at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3278)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:3259)
at weblogic.servlet.internal.WebAppServletContext.setStarted(WebAppServletContext.java:5949)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:862)
at weblogic.j2ee.J2EEApplicationContainer.start(J2EEApplicationContainer.java:2127)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2168)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2115)
at weblogic.management.deploy.slave.SlaveDeployer$Application.setActivation(SlaveDeployer.java:3082)
at weblogic.management.deploy.slave.SlaveDeployer.setActivationStateForAllApplications(SlaveDeployer.java:1751)
at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:359)
at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLifeCycleImpl.java:229)
at weblogic.t3.srvr.SubsystemManager.resume(SubsystemManager.java:131)
at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:966)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:361)
at weblogic.Server.main(Server.java:32)
<Error> <HTTP> <BEA-101216> <Servlet: "cxloader" failed to preload on startup in Web application: "startup".
javax.servlet.ServletException:
ORABPEL START-UP ERROR!!!!!!!!
Can Anyone kindly suggest what is the problem ?I have installed BPEL Process Manager with Weblogic 8.1SP4.
I am using Oracle Database 9.2.0.5.0 for Oracle BPEL Process
Manager installation.
Also i have made following changes for JDBC thin driver accordingly.
<JDBCConnectionPool CapacityIncrement="2"
DriverName="oracle.jdbc.OracleDriver"
MaxCapacity="15" LoginDelaySeconds="1"
Name="BPELServerPool"
ShrinkPeriodMinutes="15"
ShrinkingEnabled="true" SupportsLocalTransaction="true"
Targets="orabpelServer"
URL="jdbc:oracle:thin:orabpel/orabpel_password@hostname:port:database_servoce_
name"/>
I m getting following error while starting the server :-
Connection Pool "BPELServerPool" deployment failed with the following error: 0:Could not create pool connection. The DBMS driver exception was: invalid arguments in call.
Also I m getting following error during startup
ORABPEL-04076
Cannot lookup jdbc datasource.
The process domain was unable to lookup the TX datasource "BPELServerDataSourceWorkflow".
Please check that the machine hosting the datasource is physically connected to the network. Additionally check that the connection pool properties as defined in the application server startup properties are valid.
at com.collaxa.cube.engine.data.ConnectionFactory$ConnectionFactoryImpl.init(ConnectionFactory.java:268)
at com.collaxa.cube.engine.data.ConnectionFactory.update(ConnectionFactory.java:54)
at com.collaxa.cube.engine.data.ConnectionFactory.init(ConnectionFactory.java:42)
at com.collaxa.cube.admin.data.ServerConnectionFactory.init(ServerConnectionFactory.java:34)
at com.collaxa.cube.admin.adaptors.ServerAdaptorManager.init(ServerAdaptorManager.java:66)
at com.collaxa.cube.admin.ServerManager.__init(ServerManager.java:211)
at com.collaxa.cube.admin.ServerManager.init(ServerManager.java:99)
at com.collaxa.cube.ejb.impl.ServerBean.init(ServerBean.java:200)
at com.collaxa.cube.ejb.impl.ServerBean_g9inc6_EOImpl.init(ServerBean_g9inc6_EOImpl.java:856)
at com.collaxa.cube.admin.CXLoaderServlet.init(CXLoaderServlet.java:62)
at javax.servlet.GenericServlet.init(GenericServlet.java:258)
at weblogic.servlet.internal.ServletStubImpl$ServletInitAction.run(ServletStubImpl.java:1028)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.ServletStubImpl.createServlet(ServletStubImpl.java:904)
at weblogic.servlet.internal.ServletStubImpl.createInstances(ServletStubImpl.java:883)
at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:822)
at weblogic.servlet.internal.WebAppServletContext.preloadServlet(WebAppServletContext.java:3333)
at weblogic.servlet.internal.WebAppServletContext.preloadServlets(WebAppServletContext.java:3278)
at weblogic.servlet.internal.WebAppServletContext.preloadResources(WebAppServletContext.java:3259)
at weblogic.servlet.internal.WebAppServletContext.setStarted(WebAppServletContext.java:5949)
at weblogic.servlet.internal.WebAppModule.start(WebAppModule.java:862)
at weblogic.j2ee.J2EEApplicationContainer.start(J2EEApplicationContainer.java:2127)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2168)
at weblogic.j2ee.J2EEApplicationContainer.activate(J2EEApplicationContainer.java:2115)
at weblogic.management.deploy.slave.SlaveDeployer$Application.setActivation(SlaveDeployer.java:3082)
at weblogic.management.deploy.slave.SlaveDeployer.setActivationStateForAllApplications(SlaveDeployer.java:1751)
at weblogic.management.deploy.slave.SlaveDeployer.resume(SlaveDeployer.java:359)
at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.resume(DeploymentManagerServerLifeCycleImpl.java:229)
at weblogic.t3.srvr.SubsystemManager.resume(SubsystemManager.java:131)
at weblogic.t3.srvr.T3Srvr.resume(T3Srvr.java:966)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:361)
at weblogic.Server.main(Server.java:32)
<Error> <HTTP> <BEA-101216> <Servlet: "cxloader" failed to preload on startup in Web application: "startup".
javax.servlet.ServletException:
ORABPEL START-UP ERROR!!!!!!!!
Can Anyone kindly suggest what is the problem ? -
Dear all,
I am new to j2ee environment.
RFC from PI Java stack to PI ABAP stack failing intermittently. Error message: Error while lookupProblem when calling an adapter by using communication channel CC_RFC_LookUp (Party: , Service: PPICLNT900, Object ID: 2e663396395c3213aaecd4e7746a8ddd) XI AF API call failed. Module exception: 'error while processing the request to rfc-client: com.sap.aii.af.rfc.afcommunication.RfcAFWException: error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: resource error: could not get a client from JCO.Pool: com.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool RfcClient[CC_RFC_LookUp]2e663396395c3213aaecd4e7746a8ddd is exhausted. The current pool size limit (max connections) is 1 connections.'. Cause Exception: 'error while processing message to remote system:com.sap.aii.af.rfc.core.client.RfcClientException: resource error: could not get a client from JCO.Pool: com.sap.mw.jco.JCO$Exception: (106) JCO_ERROR_RESOURCE: Connection pool RfcClient[CC_RFC_LookUp]2e663396395c3213aaecd4e7746a8ddd is exhausted. The current pool size limit (max connections) is 1 connections.'
When we go to http://hostname:50100/webdynpro/dispatcher/sap.com
we can see RFC CC_RFC_LookUp and MAx connection parameter set to 1.
Rest of RFCs are having maximum connections as 20.
Please let us know what is the procedure to change MAX connection parameter for this
particular RFC CC_RFC_LookUp and which parameter we need to change and where should we find
this parameter?
Regards,
RRThanks Manoj,
I have gone through VA nodes ... could please mention which node i need to make this pareameter changes.
Please note : currently all other JCO pool RFCs are set to Max connections 20 .
But this particular RFC CC_RFC_LookUp under JCO pool tab shows
max connections set to only 1.
Please let me know where in VA i will find this parameter? -
SOA 11.1.1.3.0 - Connection Pool has been suspended during weak load
Hi,
I have a SCA with different BPEL, all uses several db adapters.
Each db adapter has retry count set to 1.
Each bpel has the following properties:
<property name="bpel.config.transaction" many="false">required</property>
<property name="bpel.config.inMemoryOptimization">true</property>
<property name="bpel.config.completionPersistPolicy">off</property>When I do a simple load testing (with 10 concurrent threads invoking the same SCA webservice) my connection pool is suspended.
Here is my connection pool configuration:
<?xml version='1.0' encoding='UTF-8'?>
<jdbc-data-source xmlns="http://xmlns.oracle.com/weblogic/jdbc-data-source" xmlns:sec="http://xmlns.oracle.com/weblogic/security" xmlns:wls="http://xmlns.oracle.com/weblogic/security/wls" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.oracle.com/weblogic/jdbc-data-source http://xmlns.oracle.com/weblogic/jdbc-data-source/1.0/jdbc-data-source.xsd">
<name>DEV__DB</name>
<jdbc-driver-params>
<url>jdbc:oracle:thin:@10.17.5.50:1521:orcl</url>
<driver-name>oracle.jdbc.xa.client.OracleXADataSource</driver-name>
<properties>
<property>
<name>user</name>
<value>DEV_</value>
</property>
</properties>
<password-encrypted>{AES}UiaJC9d4Fl7jWHkcrYttu5E+wpOB4Jw1QKwTSA0ARtE=</password-encrypted>
<use-xa-data-source-interface>true</use-xa-data-source-interface>
</jdbc-driver-params>
<jdbc-connection-pool-params>
<initial-capacity>0</initial-capacity>
<max-capacity>100</max-capacity>
<capacity-increment>1</capacity-increment>
<shrink-frequency-seconds>900</shrink-frequency-seconds>
<highest-num-waiters>2147483647</highest-num-waiters>
<connection-creation-retry-frequency-seconds>10</connection-creation-retry-frequency-seconds>
<connection-reserve-timeout-seconds>10</connection-reserve-timeout-seconds>
<test-frequency-seconds>300</test-frequency-seconds>
<test-connections-on-reserve>true</test-connections-on-reserve>
<ignore-in-use-connections-enabled>true</ignore-in-use-connections-enabled>
<inactive-connection-timeout-seconds>0</inactive-connection-timeout-seconds>
<test-table-name>SQL SELECT 1 FROM DUAL</test-table-name>
<login-delay-seconds>0</login-delay-seconds>
<statement-cache-size>100</statement-cache-size>
<statement-cache-type>LRU</statement-cache-type>
<remove-infected-connections>true</remove-infected-connections>
<seconds-to-trust-an-idle-pool-connection>0</seconds-to-trust-an-idle-pool-connection>
<statement-timeout>-1</statement-timeout>
<jdbc-xa-debug-level>10</jdbc-xa-debug-level>
<pinned-to-thread>false</pinned-to-thread>
</jdbc-connection-pool-params>
<jdbc-data-source-params>
<jndi-name>jdbc/soSvilDB</jndi-name>
<global-transactions-protocol>TwoPhaseCommit</global-transactions-protocol>
</jdbc-data-source-params>
<jdbc-xa-params>
<keep-xa-conn-till-tx-complete>true</keep-xa-conn-till-tx-complete>
<need-tx-ctx-on-close>false</need-tx-ctx-on-close>
<xa-end-only-once>false</xa-end-only-once>
<keep-logical-conn-open-on-release>false</keep-logical-conn-open-on-release>
<resource-health-monitoring>true</resource-health-monitoring>
<recover-only-once>false</recover-only-once>
<xa-set-transaction-timeout>false</xa-set-transaction-timeout>
<xa-transaction-timeout>0</xa-transaction-timeout>
<rollback-local-tx-upon-conn-close>false</rollback-local-tx-upon-conn-close>
<xa-retry-duration-seconds>300</xa-retry-duration-seconds>
<xa-retry-interval-seconds>60</xa-retry-interval-seconds>
</jdbc-xa-params>
</jdbc-data-source>Here is the error:
[2011-04-22T12:36:52.026+02:00] [OJDL] [NOTIFICATION:16] [ODL-52001] [oracle.core.ojdl.FileLogWriter] [org: Oracle] [host: soa.linux55.reply] [nwaddr: 10.17.5.69] [tid: [ACTIVE].ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: oracle] deleting log file: soa_server1-diagnostic-179.log, size: 10485438 bytes
[2011-04-22T12:36:51.985+02:00] [soa_server1] [ERROR] [] [oracle.soa.mediator.serviceEngine] [tid: [ACTIVE].ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: 0000Ixwm9CqEcLH5yvs1yW1DgLRV000081,0] [WEBSERVICE_PORT.name: AlarmsRetrieverPortType_pt] [APP: soa-infra] [composite_name: AlarmRetreiverProject] [component_name: AlarmRetrieverMediator] [component_instance_id: 6E8716B06CCC11E0AF65F721A176C6C2] [J2EE_MODULE.name: fabric] [dcid: 0f2f96dd491b9522:5032bc97:12f7cbc8b1d:-7ffc-0000000000001701] [WEBSERVICE.name: AlarmRetrieverMediator_ep] [J2EE_APP.name: soa-infra] [composite_instance_id: 250014] Got an exception: oracle.fabric.common.FabricInvocationException: faultName: {{http://schemas.oracle.com/bpel/extension}remoteFault}[[
parts: {{
summary=<summary>Exception occured when binding was invoked.
Exception occured during invocation of JCA binding: "JCA Binding execute of Reference operation 'GetTrainAlarms_dba' failed due to: Pure SQL Exception.
Pure SQL Execute of select aa.* from <OMITTED>
Caused by java.sql.SQLException: Internal error: Cannot obtain XAConnection weblogic.common.resourcepool.ResourceDisabledException: Pool DEV__DB is Suspended, cannot allocate resources to applications..
at weblogic.common.resourcepool.ResourcePoolImpl.reserveResourceInternal(ResourcePoolImpl.java:357)
at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:332)
at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:440)
at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:317)
at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:93)
at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:61)
at weblogic.jdbc.jta.DataSource.getXAConnectionFromPool(DataSource.java:1670)
at weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1438)
at weblogic.jdbc.jta.DataSource.getConnection(DataSource.java:439)
at weblogic.jdbc.jta.DataSource.connect(DataSource.java:396)
at weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:355)
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:126)
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94)
at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:327)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:295)
at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.reconnect(DatasourceAccessor.java:558)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.reconnect(DatabaseAccessor.java:1437)
at org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.incrementCallCount(DatasourceAccessor.java:303)
at oracle.tip.adapter.db.DBConnection.getTopLinkSQLConnection(DBConnection.java:335)
at oracle.tip.adapter.db.transaction.DBTransaction.beginInternal(DBTransaction.java:126)
at oracle.tip.adapter.db.puresql.PureSQLInteraction.executePureSQL(PureSQLInteraction.java:165)
at oracle.tip.adapter.db.DBInteraction.executePureSQL(DBInteraction.java:1178)
at oracle.tip.adapter.db.DBInteraction.execute(DBInteraction.java:255)
at oracle.integration.platform.blocks.adapter.fw.jca.cci.JCAInteractionInvoker.executeJcaInteraction(JCAInteractionInvoker.java:303)
at oracle.integration.platform.blocks.adapter.fw.jca.cci.JCAInteractionInvoker.invokeJcaReference(JCAInteractionInvoker.java:519)
at oracle.integration.platform.blocks.adapter.fw.jca.cci.JCAInteractionInvoker.invokeSyncJcaReference(JCAInteractionInvoker.java:492)
at oracle.integration.platform.blocks.adapter.fw.jca.cci.JCAEndpointInteraction.performSynchronousInteraction(JCAEndpointInteraction.java:472)
at oracle.integration.platform.blocks.adapter.AdapterReference.request(AdapterReference.java:166)
at oracle.integration.platform.blocks.mesh.SynchronousMessageHandler.doRequest(SynchronousMessageHandler.java:139)
at oracle.integration.platform.blocks.mesh.MessageRouter.request(MessageRouter.java:179)
at oracle.integration.platform.blocks.mesh.MeshImpl.request(MeshImpl.java:155)
at sun.reflect.GeneratedMethodAccessor925.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at oracle.integration.platform.metrics.PhaseEventAspect.invoke(PhaseEventAspect.java:71)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy284.request(Unknown Source)
at oracle.fabric.CubeServiceEngine.requestToMesh(CubeServiceEngine.java:797)
at com.collaxa.cube.ws.WSInvocationManager.invoke(WSInvocationManager.java:262)
at com.collaxa.cube.engine.ext.common.InvokeHandler.__invoke(InvokeHandler.java:1073)
at com.collaxa.cube.engine.ext.common.InvokeHandler.handleNormalInvoke(InvokeHandler.java:526)
at com.collaxa.cube.engine.ext.common.InvokeHandler.handle(InvokeHandler.java:127)
at com.collaxa.cube.engine.ext.bpel.common.wmp.BPELInvokeWMP.__executeStatements(BPELInvokeWMP.java:70)
at com.collaxa.cube.engine.ext.bpel.common.wmp.BaseBPELActivityWMP.perform(BaseBPELActivityWMP.java:162)
at com.collaxa.cube.engine.CubeEngine.performActivity(CubeEngine.java:2465)
at com.collaxa.cube.engine.CubeEngine.handleWorkItem(CubeEngine.java:1133)
at com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handleLocal(PerformMessageHandler.java:73)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleLocalMessage(DispatchHelper.java:219)
at com.collaxa.cube.engine.dispatch.DispatchHelper.sendMemory(DispatchHelper.java:327)
at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEngine.java:4350)
at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEngine.java:4282)
at com.collaxa.cube.engine.CubeEngine._createAndInvoke(CubeEngine.java:713)
at com.collaxa.cube.engine.CubeEngine.createAndInvoke(CubeEngine.java:545)
at com.collaxa.cube.engine.ejb.impl.CubeEngineBean.createAndInvoke(CubeEngineBean.java:108)
at com.collaxa.cube.engine.ejb.impl.CubeEngineBean.syncCreateAndInvokeParticipate(CubeEngineBean.java:186)
at sun.reflect.GeneratedMethodAccessor930.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at com.bea.core.repackaged.springframework.jee.intercept.MethodInvocationInvocationContext.proceed(MethodInvocationInvocationContext.java:104)
at oracle.security.jps.ee.ejb.JpsAbsInterceptor$1.run(JpsAbsInterceptor.java:88)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:414)
at oracle.security.jps.wls.JpsWeblogicEjbInterceptor.runJaasMode(JpsWeblogicEjbInterceptor.java:61)
at oracle.security.jps.ee.ejb.JpsAbsInterceptor.intercept(JpsAbsInterceptor.java:106)
at oracle.security.jps.ee.ejb.JpsInterceptor.intercept(JpsInterceptor.java:106)
at sun.reflect.GeneratedMethodAccessor833.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.jee.intercept.JeeInterceptorInterceptor.invoke(JeeInterceptorInterceptor.java:69)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy282.syncCreateAndInvokeParticipate(Unknown Source)
at com.collaxa.cube.engine.ejb.impl.bpel.BPELEngineBean_51369e_ICubeEngineLocalBeanImpl.syncCreateAndInvokeParticipate(BPELEngineBean_51369e_ICubeEngineLocalBeanImpl.java:328)
at com.collaxa.cube.engine.delivery.DeliveryHandler.callCreateAndInvoke(DeliveryHandler.java:788)
at com.collaxa.cube.engine.delivery.DeliveryHandler.initialRequestAnyType(DeliveryHandler.java:528)
at com.collaxa.cube.engine.delivery.DeliveryHandler.initialRequest(DeliveryHandler.java:487)
at com.collaxa.cube.engine.delivery.DeliveryHandler.request(DeliveryHandler.java:162)
at com.collaxa.cube.engine.ejb.impl.CubeDeliveryBean.request(CubeDeliveryBean.java:607)
at sun.reflect.GeneratedMethodAccessor933.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at com.bea.core.repackaged.springframework.jee.intercept.MethodInvocationInvocationContext.proceed(MethodInvocationInvocationContext.java:104)
at oracle.security.jps.ee.ejb.JpsAbsInterceptor$1.run(JpsAbsInterceptor.java:88)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:414)
at oracle.security.jps.wls.JpsWeblogicEjbInterceptor.runJaasMode(JpsWeblogicEjbInterceptor.java:61)
at oracle.security.jps.ee.ejb.JpsAbsInterceptor.intercept(JpsAbsInterceptor.java:106)
at oracle.security.jps.ee.ejb.JpsInterceptor.intercept(JpsInterceptor.java:106)
at sun.reflect.GeneratedMethodAccessor833.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.jee.intercept.JeeInterceptorInterceptor.invoke(JeeInterceptorInterceptor.java:69)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy279.request(Unknown Source)
at com.collaxa.cube.engine.ejb.impl.bpel.BPELDeliveryBean_5k948i_ICubeDeliveryLocalBeanImpl.request(BPELDeliveryBean_5k948i_ICubeDeliveryLocalBeanImpl.java:462)
at oracle.fabric.CubeServiceEngine.request(CubeServiceEngine.java:358)
at oracle.integration.platform.blocks.mesh.SynchronousMessageHandler.doRequest(SynchronousMessageHandler.java:139)
at oracle.integration.platform.blocks.mesh.MessageRouter.request(MessageRouter.java:179)
at oracle.integration.platform.blocks.mesh.MeshImpl.request(MeshImpl.java:155)
at sun.reflect.GeneratedMethodAccessor925.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at oracle.integration.platform.metrics.PhaseEventAspect.invoke(PhaseEventAspect.java:71)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy284.request(Unknown Source)
at oracle.tip.mediator.serviceEngine.MediatorServiceEngine.request2Mesh(MediatorServiceEngine.java:1063)
at oracle.tip.mediator.service.BaseActionHandler.requestProcess(BaseActionHandler.java:202)
at oracle.tip.mediator.service.BaseActionHandler.requestProcess(BaseActionHandler.java:94)
at oracle.tip.mediator.service.BaseActionHandler.requestProcess(BaseActionHandler.java:74)
at oracle.tip.mediator.service.SyncRequestResponseHandler.process(SyncRequestResponseHandler.java:79)
at oracle.tip.mediator.service.ActionProcessor.onMessage(ActionProcessor.java:64)
at oracle.tip.mediator.dispatch.MessageDispatcher.executeCase(MessageDispatcher.java:140)
at oracle.tip.mediator.dispatch.InitialMessageDispatcher.processCase(InitialMessageDispatcher.java:495)
at oracle.tip.mediator.dispatch.InitialMessageDispatcher.processCases(InitialMessageDispatcher.java:393)
at oracle.tip.mediator.dispatch.InitialMessageDispatcher.processNormalCases(InitialMessageDispatcher.java:276)
at oracle.tip.mediator.dispatch.InitialMessageDispatcher.processCases(InitialMessageDispatcher.java:251)
at oracle.tip.mediator.dispatch.InitialMessageDispatcher.dispatch(InitialMessageDispatcher.java:148)
at oracle.tip.mediator.serviceEngine.MediatorServiceEngine.process(MediatorServiceEngine.java:860)
at oracle.tip.mediator.serviceEngine.MediatorServiceEngine.request(MediatorServiceEngine.java:716)
at oracle.integration.platform.blocks.mesh.SynchronousMessageHandler.doRequest(SynchronousMessageHandler.java:139)
at oracle.integration.platform.blocks.mesh.MessageRouter.request(MessageRouter.java:179)
at oracle.integration.platform.blocks.mesh.MeshImpl.request(MeshImpl.java:155)
at sun.reflect.GeneratedMethodAccessor925.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at oracle.integration.platform.metrics.PhaseEventAspect.invoke(PhaseEventAspect.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy284.request(Unknown Source)
at oracle.integration.platform.blocks.soap.WebServiceEntryBindingComponent.doMessageProcessing(WebServiceEntryBindingComponent.java:1169)
at oracle.integration.platform.blocks.soap.WebServiceEntryBindingComponent.processIncomingMessage(WebServiceEntryBindingComponent.java:768)
at oracle.integration.platform.blocks.soap.FabricProvider.processMessage(FabricProvider.java:113)
at oracle.j2ee.ws.server.provider.ProviderProcessor.doEndpointProcessing(ProviderProcessor.java:1168)
at oracle.j2ee.ws.server.WebServiceProcessor.invokeEndpointImplementation(WebServiceProcessor.java:996)
at oracle.j2ee.ws.server.provider.ProviderProcessor.doRequestProcessing(ProviderProcessor.java:562)
at oracle.j2ee.ws.server.WebServiceProcessor.processRequest(WebServiceProcessor.java:222)
at oracle.j2ee.ws.server.WebServiceProcessor.doService(WebServiceProcessor.java:186)
at oracle.j2ee.ws.server.WebServiceServlet.doPost(WebServiceServlet.java:430)
at oracle.integration.platform.blocks.soap.FabricProviderServlet.doPost(FabricProviderServlet.java:477)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:821)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:330)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.doIt(WebAppServletContext.java:3684)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3650)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2268)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2174)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1446)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
The invoked JCA adapter raised a resource exception.
Please examine the above error message carefully to determine a resolution.
</summary>
,detail=<detail>Internal error: Cannot obtain XAConnection weblogic.common.resourcepool.ResourceDisabledException: Pool DEV__DB is Suspended, cannot allocate resources to applications..
at weblogic.common.resourcepool.ResourcePoolImpl.reserveResourceInternal(ResourcePoolImpl.java:357)
at weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:332)
at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:440)
at weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:317)
at weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:93)
</detail>
,code=<code>0</code>}
oracle.tip.mediator.infra.exception.MediatorException: ORAMED-03303:[Unexpected exception in case execution]Unexpected exception in request response operation "process" on reference "DEV_bpel_client". Possible Fix:Check whether the reference service is properly configured and running or look at exception for analysing the reason or contact oracle support.
at oracle.tip.mediator.service.SyncRequestResponseHandler.handleFault(SyncRequestResponseHandler.java:215)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Caused by: oracle.fabric.common.FabricInvocationException: faultName: {{http://schemas.oracle.com/bpel/extension}remoteFault}I configured it using the Oracle User Guide For Technology Adapters, paragraph 2.21, but I still have the issue.
Please can someone help me out?Also, the strange thing is that if I monitor the Datasource (that has a 100 conn. capacity) I see that it is not overloaded:
Server Sorted Ascending Enabled State JDBC Driver Active Connections Average Count Active Connections Current Count Active Connections High Count Connection Delay Time Connections Total Count Curr Capacity High Count Current Capacity Failed Reserve Request Count Failures To Reconnect Count Highest Num Available Leaked Connection Count Num Available Num Unavailable Prep Stmt Cache Add Count Prep Stmt Cache Current Size Prep Stmt Cache Delete Count Prep Stmt Cache Hit Count Prep Stmt Cache Miss Count PrepStmt Cache Access Count Reserve Request Count Wait Seconds High Count Waiting For Connection Current Count Waiting For Connection Failure Total Waiting For Connection High Count Waiting For Connection Success Total Waiting For Connection Total
soa_server1 false Suspended oracle.jdbc.xa.client.OracleXADataSource 0 9 9 19049 36 10 9 81 0 10 0 0 9 18 18 0 0 18 18 380 0 0 0 0 35 0 -
How database connection pooling works in a application
Hi Guys,
I am new to Java and looking into best way of doing J2ee database conectivity. I am using Eclipse galileo3.5 J2EE with Mysql database and Tomcate 6.0.
I am developing an email application where I need to implement MVC model for my webapplication, using jsp for presentation, servlet for control and java beans for model.
I came across two tutorial for database connection pooling as given below.
Eclipse Corner Article: Creating Database Web Applications with Eclipse - In this tutorial connection pooling is configure in Tomcate 6.0
It says Copy and paste the following into your context.xml file (you may have to click on the Source tab at the bottom of the editor to be able to paste). This defines a DataSource with the name "jdbc/SampleDB". Our application will retrieve database connections from the pool using this name.
<?xml version="1.0" encoding="UTF-8"?>
<Context>
<Resource name="jdbc/SampleDB" auth="Container"
type="javax.sql.DataSource"
username="app" password="app"
driverClassName="org.apache.derby.jdbc.ClientDrive r"
url="jdbc:derby://localhost:1527/sample"
maxActive="8" />
</Context>
Where as in second tutorial - http://www.roseindia.net/answers/viewanswers/2838.html
It uses java bean for connection pooling and then use straight way in JSP and no Servlet used.
conpool.jsp
<%@page import="java.sql.Connection"%>
<jsp:useBean id="pl" class="com.CoreJava.ConnectionPooling"/>
<% Connection con = pl.getConnection(); %>
//do something using con
connectionPooling.java
import com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolD ataSource;
public class ConnectionPooling
static Connection con=null;
public static Connection getConnection()
try
MysqlConnectionPoolDataSource po=new MysqlConnectionPoolDataSource();
po.setServerName("localhost");
po.setPortNumber(3306);
po.setDatabaseName("mydatabase"); //changeur database name
po.setUser("root");//ur username
po.setPassword("");//ur password
con = po.getConnection();
catch(Exception e)
System.out.println("Exception Connection :"+e);
return con;
Please some one explain which is the best way of doing connection pooling to the database by using MVC pattern
Please if some one advise me how to use MVC architecture for simple email application and database connectivty.
Thanks>
>
Where as in second tutorial - http://www.roseindia.net/answers/viewanswers/2838.html
Never EVER use roseindia. It is terrible shit.
[http://balusc.blogspot.com/2008/06/what-is-it-with-roseindia.html]
The correct answer is what you found in the eclipse article. And you can read the Tomcat docs for more.
As per usual the code you have posted from Roseindia is a big pile of rubbish that was written by a complete idiot. I mean the person who wrote it apparently doesn't know much Java at all. Let alone JDBC. Or Connection pools. Or J2EE. It's not the worst I've seen from them but it's pretty bad. -
Creating a connection pool using Oracle 10g, Sun ONE Application Serve 8.1
Has any one succesfully configured Oracle 10g to work with Sun ONE Application Server 8.1 on Windows 2000 server service pack 4? I am embarking on a new J2EE project and I need to configure it as soon as possible.
I haven't done it myself on that particular service pack, but I don't see why it should be any different than configuring a connection pool on other vanilla win2k/other OSes.
Would you please try and let this forum know?
thanks. -
Creating a connection pool using SQL Server 2000, Sun ONE Application Serve
Has any one succesfully configured SQL Server 2000 to work with Sun ONE Application Server 7 on Windows 2000 server service pack 4? I am embarking on a new J2EE project and I need to configure it as soon as possible.
The problem I am having is that, when I ping the data souce name, there is a connection error.
I have set the data source name and other details as follows:
Under JDBC, I have set the parameters for the connection pool as follows:
Data Source Name: com.microsoft.jdbc.sqlserver.SQLServerDriver
Database Name: jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=Test
User: test
Password: test
In the JVM settings page, I have set the prefix class path as follows for the location of the Microsoft JDBC
drivers that I downloaded as follows:
c:\microsoft\drivers/lib/msbase.jar
c:\microsoft\drivers/lib/msutil.jar
c:\microsoft\drivers/lib/mssqlserver.jar
Under JVM Options, there is a strange setting which I don't understand: perhaps this is the cause of the
connction error?
-Djdbc.drivers=com.pointbase.jdbc.jdbcUniversalDriver
Please help????I'm in a similar boat...
Trying to setup AS7 JDBC and followed the instructions on the link you provided and get the following exception. I kept the case the same, thinking 'setpassword" was incorrect, so I tried changing the property to "Password", but get the same exception but it points to "setPassword" instead.
SEVERE: RAR5041:Cannot get jdbc connection
com.sun.enterprise.repository.J2EEResourceException
java.lang.NoSuchMethodException: setpassword
at com.sun.enterprise.repository.JdbcConnectionPool.createDataSource(JdbcConnectionPool.java:243)
at com.sun.enterprise.resource.JdbcUrlAllocator.createResource(JdbcUrlAllocator.java:80)
at com.sun.enterprise.resource.IASNonSharedResourcePool.createSteadyResources(IASNonSharedResourcePool.java:856)
at com.sun.enterprise.resource.IASNonSharedResourcePool.initPool(IASNonSharedResourcePool.java:416)
at com.sun.enterprise.resource.IASNonSharedResourcePool.internalGetResource(IASNonSharedResourcePool.java:625)
at com.sun.enterprise.resource.IASNonSharedResourcePool.getResource(IASNonSharedResourcePool.java:520)
at com.sun.enterprise.resource.PoolManagerImpl.getResourceFromPool(PoolManagerImpl.java:263)
at com.sun.enterprise.resource.JdbcXAConnection.<init>(JdbcXAConnection.java:74)
at com.sun.enterprise.resource.Jdbc10XaAllocator.createResource(Jdbc10XaAllocator.java:94)
at com.sun.enterprise.resource.IASNonSharedResourcePool.createSteadyResources(IASNonSharedResourcePool.java:856)
at com.sun.enterprise.resource.IASNonSharedResourcePool.initPool(IASNonSharedResourcePool.java:416)
at com.sun.enterprise.resource.IASNonSharedResourcePool.internalGetResource(IASNonSharedResourcePool.java:625)
at com.sun.enterprise.resource.IASNonSharedResourcePool.getResource(IASNonSharedResourcePool.java:520)
at com.sun.enterprise.resource.PoolManagerImpl.getResourceFromPool(PoolManagerImpl.java:263)
at com.sun.enterprise.resource.PoolManagerImpl.getResource(PoolManagerImpl.java:170)
at com.sun.enterprise.resource.JdbcDataSource.internalGetConnection(JdbcDataSource.java:241)
at com.sun.enterprise.resource.JdbcDataSource.getConnection(JdbcDataSource.java:98)
at com.rvi.database.jdbcConnection.getConnection(jdbcConnection.java:93)
at com.webapp.database.ArticlesDAO.selectByYear(ArticlesDAO.java:102)
at com.webapp.actions.ArticleAction.list(ArticleAction.java:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118)
at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:157)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:598) -
Connection pooling and auditing on an oracle database
Integration of a weblogic application with an oracle backend,
Connection pooling, and auditing ,2 conflicting requirements ?
Problem statement :
We are in the process of maintaining a legacy client server application where
the client is
written in PowerBuilder and the backend is using an Oracle database.
Almost all business logic is implemented in stored procedures on the database.
When working in client/server mode ,1 PowerBuilder User has a one-to-one relation
with
a connection(session) on the oracle database.
It is a requirement that the database administrator must see the real user connected
to the database
and NOT some kind of superuser, therefore in the PowerBuilder app each user connects
to the database
with his own username.(Each user is configured on the database via a seperate
powerbuilder security app).
For the PowerBuilder app all is fine and this app can maintain conversional state(setting
and
reading of global variables in oracle packages).
The management is pushing for web-based application where we will be using bea
weblogic appserver(J2EE based).
We have build an business app which is web-based and accessing the same oracle
backend app as
the PowerBuilder app is doing.
The first version of this web-based app is using a custom build connector(based
on JCA standard and
derived from a template provided by the weblogic integration installation).
This custom build connector is essentially a combination of a custom realm in
weblogic terms
and a degraded connection pool , where each web session(browser) has a one-to-one
relation
with the back end database.
The reason that this custom connector is combining the security functionality
and the pooling
functionality , is because each user must be authenticated against the oracle
database(security requirement)
and NOT against a LDAP server, and we are using a statefull backend(oracle packages)
which would make it
difficult to reuse connections.
A problem that surfaced while doing heavy loadtesting with the custom connector,
is that sometimes connections are closed and new ones made in the midst of a transaction.
If you imagine a scenario where a session bean creates a business entity ,and
the session bean
calls 1 entity bean for the header and 1 entity bean for the detail, then the
header and detail
must be created in the same transaction AND with the same connection(there is
a parent-child relationship
between header and detail enforced on the back end database via Primary and Foreing
Keys).
We have not yet found why weblogic is closing the connection!
A second problem that we are experincing with the custom connector, is the use
of CMP(container managed persistence)
within entity beans.
The J2EE developers state that the use of CMP decreases the develoment time and
thus also maintenance costs.
We have not yet found a way to integrate a custom connector with the CMP persistence
scheme !
In order to solve our loadtesting and CMP persistence problems i was asked to
come up with a solution
which should not use a custom connector,but use standard connection pools from
weblogic.
To resolve the authentication problem on weblogic i could make a custom realm
which connects to the
backend database with the username and password, and if the connection is ok ,
i could consider this
user as authenticated in weblogic.
That still leaves me with the problem of auditing and pooling.
If i were to use a standard connection pool,then all transaction made in the oracle
database
would be done by a pool user or super user, a solution which will be rejected
by our local security officer,
because you can not see which real user made a transaction in the database.
I could still use the connection pool and in the application , advise the application
developers
to set an oracle package variable with the real user, then on arrival of the request
in the database,
the logic could use this package variable to set the transaction user.
There are still problems with this approach :
- The administrator of the database can still not see who is connected , he will
only see the superuser connection.
- This scheme can not be used when you want to use CMP persistence , since it
is weblogic who will generate the code
to access the database.
I thought i had a solution when oracle provided us with a connection pool known
as OracleOCIConnectionPool
where there is a connection made by a superuser, but where sessions are multiplexed
over this physical pipe with the real user.
I can not seem to properly integrate this OCI connectionpool into weblogic.
When using this pool , and we are coming into a bean (session or entity bean)
weblogic is wrapping
this pool with it's own internal Datasource and giving me back a connection of
the superuser, but not one for the real user,
thus setting me with my back to the wall again.
I would appreciate if anyone had experienced the same problem to share a possible
solution with us
in order to satisfy all requirements(security,auditing,CMP).
Many Thanks
Blyau Gino
[email protected]Hi Blyau,
As Joe has already provided some technical advice,
I'll try to say something on engineering process level.
While migrating an application from one technology to
other, like client-server to n-tier in you case, customers and
stakeholders want to push into the new system as many old
requirements as possible. This approach is AKA "we must
have ALL of the features of the old system". Mostly it happens
because they don't know what they want. Ad little understanding
of abilities of the new technology, and you will get a requirement
like the one you have in you hands.
I think "DBA must see real user" is one of those. For this
type of requirements it can make sense to try to drop it,
or to understand its nature and suggest alternatives. In this
particular case it can be a system that logs user names,
login and logout times.
Blind copying of old features into an incompatible new architecture
may endanger the whole project and can result in its failure.
Hope this helps.
Regards,
Slava Imeshev
"Blyau Gino" <[email protected]> wrote in message
news:[email protected]...
>
Integration of a weblogic application with an oracle backend,
Connection pooling, and auditing ,2 conflicting requirements ?
Problem statement :
We are in the process of maintaining a legacy client server applicationwhere
the client is
written in PowerBuilder and the backend is using an Oracle database.
Almost all business logic is implemented in stored procedures on thedatabase.
When working in client/server mode ,1 PowerBuilder User has a one-to-onerelation
with
a connection(session) on the oracle database.
It is a requirement that the database administrator must see the real userconnected
to the database
and NOT some kind of superuser, therefore in the PowerBuilder app eachuser connects
to the database
with his own username.(Each user is configured on the database via aseperate
powerbuilder security app).
For the PowerBuilder app all is fine and this app can maintainconversional state(setting
and
reading of global variables in oracle packages).
The management is pushing for web-based application where we will be usingbea
weblogic appserver(J2EE based).
We have build an business app which is web-based and accessing the sameoracle
backend app as
the PowerBuilder app is doing.
The first version of this web-based app is using a custom buildconnector(based
on JCA standard and
derived from a template provided by the weblogic integrationinstallation).
This custom build connector is essentially a combination of a custom realmin
weblogic terms
and a degraded connection pool , where each web session(browser) has aone-to-one
relation
with the back end database.
The reason that this custom connector is combining the securityfunctionality
and the pooling
functionality , is because each user must be authenticated against theoracle
database(security requirement)
and NOT against a LDAP server, and we are using a statefull backend(oraclepackages)
which would make it
difficult to reuse connections.
A problem that surfaced while doing heavy loadtesting with the customconnector,
>
is that sometimes connections are closed and new ones made in the midst ofa transaction.
If you imagine a scenario where a session bean creates a business entity,and
the session bean
calls 1 entity bean for the header and 1 entity bean for the detail, thenthe
header and detail
must be created in the same transaction AND with the same connection(thereis
a parent-child relationship
between header and detail enforced on the back end database via Primaryand Foreing
Keys).
We have not yet found why weblogic is closing the connection!
A second problem that we are experincing with the custom connector, is theuse
of CMP(container managed persistence)
within entity beans.
The J2EE developers state that the use of CMP decreases the develomenttime and
thus also maintenance costs.
We have not yet found a way to integrate a custom connector with the CMPpersistence
scheme !
In order to solve our loadtesting and CMP persistence problems i was askedto
come up with a solution
which should not use a custom connector,but use standard connection poolsfrom
weblogic.
To resolve the authentication problem on weblogic i could make a customrealm
which connects to the
backend database with the username and password, and if the connection isok ,
i could consider this
user as authenticated in weblogic.
That still leaves me with the problem of auditing and pooling.
If i were to use a standard connection pool,then all transaction made inthe oracle
database
would be done by a pool user or super user, a solution which will berejected
by our local security officer,
because you can not see which real user made a transaction in thedatabase.
I could still use the connection pool and in the application , advise theapplication
developers
to set an oracle package variable with the real user, then on arrival ofthe request
in the database,
the logic could use this package variable to set the transaction user.
There are still problems with this approach :
- The administrator of the database can still not see who is connected ,he will
only see the superuser connection.
- This scheme can not be used when you want to use CMP persistence , sinceit
is weblogic who will generate the code
to access the database.
I thought i had a solution when oracle provided us with a connection poolknown
as OracleOCIConnectionPool
where there is a connection made by a superuser, but where sessions aremultiplexed
over this physical pipe with the real user.
I can not seem to properly integrate this OCI connectionpool intoweblogic.
When using this pool , and we are coming into a bean (session or entitybean)
weblogic is wrapping
this pool with it's own internal Datasource and giving me back aconnection of
the superuser, but not one for the real user,
thus setting me with my back to the wall again.
I would appreciate if anyone had experienced the same problem to share apossible
solution with us
in order to satisfy all requirements(security,auditing,CMP).
Many Thanks
Blyau Gino
[email protected] -
How dynamically create connection pool and Datasource
Hi
How I can dynamically create a connection pool and Data source in Oracle 10g Application server. In our J2EE application the user will be login with db user name, password and database name. I want to create connection pool and data source on the fly while login the user with database name. I our application we have access approximate 80 Databases. so my approach is given bellow
1) Planning to create 80 connection pools and 80 Data sources so when user logs in while selecting the db name i will call the appropriate data source and create the DB connection. Is there any limitation to create number of data sources in oracle app server?
2) Create DB connection with out using connection pool and data source. But i am not prefer this approach coz we need to handle some transaction in our application.
Kindly throw some light on managing connection pool programmatically or in application run time.
I would really appreciate if any one can provide any links or any inormation on this issue.
Thanks in advance.Kindly let me know is there any drawbacks to create 80 Data Sources to connect 80 database in Oracle 10G App server and each data sources should have one connection pool. so i need to create 80 connection pool. Please let me know is this right approach or any work around to create Data source on fly for each request for corresponding database.
-
How to use a JCO connection pool in an EJB?
Hi *,
I want to build a WebService using SAP Web AS (J2EE Engine) that connects to a R/3 ERP (release 4.7).
I thought of building a stateless session bean that will be deployed as webservice. The session bean shall connect to the R/3 in order to call some BAPIs. I'd like to use a JCO connection pool. But I'm not sure, where I should create and destroy the connection pool. Are the EJB methods ejbCreate() and ejbRemove() the right ones? If so, my businness methods would just have to get a connection from the pool and call the BAPIs, right? If not, what do you suggest?
Another question: I already deployed a bean as webservice. Since not really knowing how to use the connection pool, I created a bean with one business method that creates a connection pool whenever it gets called. But if I have to change something in the bean so that I have to redeploy the bean I can't call my business method anymore, because JCO cannot load a native library once again, as it is already loaded, This leads to an exception. So I have to restart the complete engine everytime I redeploy my bean. Are there any workarounds for this problem? I'm not sure whether this is connected to the wrong use of the JCO connection pool.
Kind regards,
LarsHi *,
I want to build a WebService using SAP Web AS (J2EE Engine) that connects to a R/3 ERP (release 4.7).
I thought of building a stateless session bean that will be deployed as webservice. The session bean shall connect to the R/3 in order to call some BAPIs. I'd like to use a JCO connection pool. But I'm not sure, where I should create and destroy the connection pool. Are the EJB methods ejbCreate() and ejbRemove() the right ones? If so, my businness methods would just have to get a connection from the pool and call the BAPIs, right? If not, what do you suggest?
Another question: I already deployed a bean as webservice. Since not really knowing how to use the connection pool, I created a bean with one business method that creates a connection pool whenever it gets called. But if I have to change something in the bean so that I have to redeploy the bean I can't call my business method anymore, because JCO cannot load a native library once again, as it is already loaded, This leads to an exception. So I have to restart the complete engine everytime I redeploy my bean. Are there any workarounds for this problem? I'm not sure whether this is connected to the wrong use of the JCO connection pool.
Kind regards,
Lars
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