OAS 10.1 3.1 0 OC4J JDBC Connection/Timeout settings

I am fairly new to OAS, and am trying to resolve a intermitent issue,
I have an OAS 10.1.3.1.0 with a deployed EAR file I was provided by a supplier containing mainly PL/SQL based logic, which configured the OAS to ask a middle tier for a an external to pass data to it via Stored Procedure and then usiing the deployed package connect to an external Oracle DB and insert the data.
Oas is running on a Windows 2003 platform that has no problems or connectivity problems, how ever intermittenlt the OAS stops uploading data to the external Oracle DB. Some custom external logging details this as a communication at the time it occurs, how ever there are no comms issues. A quick restart of the OAS windows service resolves the issue.
Apart from upgrading OAS to patch set 5, the only other thing I considered could be causing the issue is how OAS is handling the session timeout or connection pool.
I can see the following settings for the JDBC connection I am using, I wondered if anyone could advise anything that could be changed? I am not sure the implications on setting the validate connection to True and also not sure why maximum number of connections is set to -1?
Connections
Initial size of Connection Cache
Minimum Number of Connections
Maximum Number of Connections
Connection Retry Interval (seconds)
Maximum Connection Attempts
Maximum Number of Statements Cached
Lower Threshold Limit On Pool (%)
Defaults to 20% of max connections.
Validate Connection FalseTrue
Timeouts
Inactivity Timeout (seconds)
Time that an unused connection is inactive before it is removed from the pool.
Wait For Used Connection Timeout (seconds)
Maximum time to wait for a used connection to be released.
Max Active Time for a Used Connection (seconds)
Maximum time a used connection may be active.
Abandoned Connection Timeout (seconds)
Enforce Timeout Limits Interval (seconds)
Any help would be appreciated

Hi,
Along with Priya's suggestions, please refer the link below for the details on the parameters.
http://download.oracle.com/docs/cd/B32110_01/web.1013/b28958/datasrc.htm#CHDCFCHB
Hope this will help understand all the parameters.
Also refer,
What Should Be My Maximum Connection Pool Size? [ID 1061155.1]
http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.html
Regards,
Mithun

Similar Messages

Jdbc Connections not closed on OC4J 9.0.4 - BUG VERSION?

Hi, I migrate my applications from 9ias 9.0.3 to OAS 10g with OC4J 9.0.4.
After migration, the jdbc connections provide by Data Source Names don't be closed in Oracle Database 8.1.7, stay INACTIVE state, and in few time of access, the Oracle Database exceded limit of sessions.
The OC4J 9.0.4.1 resolve this problem ? Where i can download this release ?
Any body have any idea ?
thanks,
Danilo

Hi
did you find any solution for this problem? I'm having the same problem...
thanks in advanced
Vitor

Issues with JDBC Connection Pooling

Hi all,
I'm experiencing some unexpected behaviour when trying to use JDBC Connection Pooling with my BC4J applications.
The configuraiton is -
Web Application using BC4J in local mode
Using Default Connection Stagegy
Stateless Release Mode
Retrieving Application Modules using Configuration.createRootApplicationModule( am , cf );
Returning Application Modules using Configuration.releaseRootApplicationModule( am, false );
Three application modules
AppModuleA - connects to DatabaseConnection1
AppModuleB - connects to DatabaseConnection2
AppModuleC - connects to DatabaseConnection2
My requirement is to -
Use App Module Pooling and have individual pool for each Application Module
Use JDBC Pooling and have individual pool for each Database connection
Note: All configuration was achieved in design mode (i.e. right clicking AppModule->Configurations...)
1. Initial approach -
In the configuration for each Application Module I specified the connection type as 'JDBC Datasource' and specified to approriate datasource.
Tried setting doConnecitonPooling to 'true' as well as 'false'
In the data-sources.xml I specified all the appropriate info including min-connections and max-connections.
I would expect, with the above config that BC4J would use OC4J's built in JDBC connection pooling.
2. Second approach -
In the configuration for each Application Module I specified the connection type as JDBC URL.
In the configuration I specified doConnectionPooling = 'true' as well as the max connection, max available and min available
What I experienced in both cases was that the max connections seem to be ignored as the number of connection as reported by the database (v$session) was exceeded by more than 10.
In addition to this once the load was removed the number of JDBC connecitons did not drop (I would have expected it to drop to max available connections)
My questions are -
1. When specifying to use a 'JDBC Datasource' style of connection, is it in fact OC4J that is then responsible for pooling JDBC connections? And in this case should BC4J's doConnectionPooling parameter be set to true or false?
2. Are there any known issues with the use of the JDBC Conneciton Pool as stated by the above to approaches?

Thanks for the additional info. Please see my comments. below.
Sorry should have been more specififc -
1. Is each application pool using a different JDBC user? You mentioned DatabaseConnection1 and DatabaseConnection2
above; are these connections to different schemas / users? If so, BC4J will create a separate connection pool for each
JDBC user. Each connection pool will have its own maximum pool size.
Each 'DatabaseConnection' refers to a different database, actually hosted on a seperate physical server, different
schema and different user.BC4J will maintain a separate connection pool for each permutation of JDBC URL / schema. If each user is connecting
to a different DB instance then I would expect no greater than 10 DB sessions. However, if a DB instance is hosting
more than user then I would expect greater than 10 DB sessions (though still no more than 10 DB sessions per user).
2. Are all the v$session sessions related to the JDBC clients? There should be at least one additional database
session which will be related to the session that is querying v$session.
When querying the v$session table I specifically look for connections from the user in quesiton and from the machine
name in question and in doing so eliminate the database system's connections, as well as the query tools'
connection. One area I'm not sure about is the connection BC4J uses to write to its temporary tables. I am using
Stateless release mode and have not explicetly stated to save to the database but I'm wondering if it still does if so
and how does it come into the equation with max connections?BC4J's internal connections are also pooled and the limits apply as mentioned above. So, if you have specified
internal connection info for a schema which is different than the users above I would expect the additional conns.
One helpful diagnostic tool, albeit programmatic, might be to print the information about the connection pools after
your test client(s) have finished. This may be accomplished as follows:
// get a reference to the BC4J connection pool manager
import oracle.jbo.server.ConnectionPoolManagerFactory;
import oracle.jbo.server.ConnectionPoolManagerImpl;
import oracle.jbo.pool.ResourcePool;
import java.io.PrintWriter;
import java.util.Enumeration;
// get the ConnectionPoolManager. assume that it is an instance of the supplied manager
ConnectionPoolManagerImpl mgr = (ConnectionPoolManagerImpl)ConnectionPoolManagerFactory.getConnectionPoolManager();
Enumeration keys = mgr.getResourcePoolKeys();
PrintWriter pw = new PrintWriter(System.out, true);
while (keys.hasMoreElements())
Object key = keys.nextElement();
ResourcePool pool = (ResourcePool)mgr.getResourcePool(key);
System.out.println("Dumping pool statistics for pool: " + key);
pool.dumpPoolStatistics(pw);
}

Msg=JBO-26061: Error while opening JDBC connection

I developed an application connecting to a database and the application worked fine. After that I moved the tables into the different database user and server.
I opened the application in JDeveloper and I configured the new Database connection and New DB user test passed in “Connection Navigator”. When I run the application I am getting the following error message in the browser.
Please help me.
========================================
JBO-30003: The application pool (oracle.srtutorial.datamodel.SRPublicServiceLocal) failed to checkout an application module due to the following exception:oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-29000: Unexpected exception caught: oracle.jbo.DMLException, msg=JBO-26061: Error while opening JDBC connection. at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:2002) at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2793) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:453) at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:233) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:424) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:419) at oracle.adf.model.bc4j.DCJboDataControl.rebuildApplicationModule(DCJboDataControl.java:1536) at oracle.adf.model.bc4j.DCJboDataControl.beginRequest(DCJboDataControl.java:1396) at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:99) at oracle.adf.model.BindingContext.get(BindingContext.java:457) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248) at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383) at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:127) at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51) at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277) at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296) at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425) at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54) at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44) at oracle.adf.model.BindingContext.get(BindingContext.java:483) at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:313) at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:633) at oracle.adf.model.BindingRequestHandler.isPageViewable(BindingRequestHandler.java:265) at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:169) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:161) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)## Detail 0 ##oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.JboException, msg=JBO-29000: Unexpected exception caught: oracle.jbo.DMLException, msg=JBO-26061: Error while opening JDBC connection. at oracle.jbo.pool.ResourcePool.useResource(ResourcePool.java:336) at oracle.jbo.server.ConnectionPool.getConnectionInternal(ConnectionPool.java:87) at oracle.jbo.server.ConnectionPool.getConnection(ConnectionPool.java:66) at oracle.jbo.server.ConnectionPoolManagerImpl.getConnection(ConnectionPoolManagerImpl.java:56) at oracle.jbo.server.DBTransactionImpl.establishNewConnection(DBTransactionImpl.java:911) at oracle.jbo.server.DBTransactionImpl.initTransaction(DBTransactionImpl.java:1156) at oracle.jbo.server.DBTransactionImpl.initTxn(DBTransactionImpl.java:5891) at oracle.jbo.server.DBTransactionImpl2.connect(DBTransactionImpl2.java:120) at oracle.jbo.common.ampool.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:194) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolConnect(ApplicationPoolMessageHandler.java:454) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolMessage(ApplicationPoolMessageHandler.java:343) at oracle.jbo.server.ApplicationModuleImpl.doPoolMessage(ApplicationModuleImpl.java:7763) at oracle.jbo.common.ampool.ApplicationPoolImpl.sendPoolMessage(ApplicationPoolImpl.java:4074) at oracle.jbo.common.ampool.ApplicationPoolImpl.prepareApplicationModule(ApplicationPoolImpl.java:2161) at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1961) at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2793) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:453) at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:233) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:424) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:419) at oracle.adf.model.bc4j.DCJboDataControl.rebuildApplicationModule(DCJboDataControl.java:1536) at oracle.adf.model.bc4j.DCJboDataControl.beginRequest(DCJboDataControl.java:1396) at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:99) at oracle.adf.model.BindingContext.get(BindingContext.java:457) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248) at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383) at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:127) at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51) at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277) at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296) at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425) at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54) at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44) at oracle.adf.model.BindingContext.get(BindingContext.java:483) at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:313) at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:633) at oracle.adf.model.BindingRequestHandler.isPageViewable(BindingRequestHandler.java:265) at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:169) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:161) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)## Detail 0 ##oracle.jbo.JboException: JBO-29000: Unexpected exception caught: oracle.jbo.DMLException, msg=JBO-26061: Error while opening JDBC connection. at oracle.jbo.pool.ResourcePool.createResource(ResourcePool.java:545) at oracle.jbo.pool.ResourcePool.useResource(ResourcePool.java:326) at oracle.jbo.server.ConnectionPool.getConnectionInternal(ConnectionPool.java:87) at oracle.jbo.server.ConnectionPool.getConnection(ConnectionPool.java:66) at oracle.jbo.server.ConnectionPoolManagerImpl.getConnection(ConnectionPoolManagerImpl.java:56) at oracle.jbo.server.DBTransactionImpl.establishNewConnection(DBTransactionImpl.java:911) at oracle.jbo.server.DBTransactionImpl.initTransaction(DBTransactionImpl.java:1156) at oracle.jbo.server.DBTransactionImpl.initTxn(DBTransactionImpl.java:5891) at oracle.jbo.server.DBTransactionImpl2.connect(DBTransactionImpl2.java:120) at oracle.jbo.common.ampool.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:194) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolConnect(ApplicationPoolMessageHandler.java:454) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolMessage(ApplicationPoolMessageHandler.java:343) at oracle.jbo.server.ApplicationModuleImpl.doPoolMessage(ApplicationModuleImpl.java:7763) at oracle.jbo.common.ampool.ApplicationPoolImpl.sendPoolMessage(ApplicationPoolImpl.java:4074) at oracle.jbo.common.ampool.ApplicationPoolImpl.prepareApplicationModule(ApplicationPoolImpl.java:2161) at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1961) at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2793) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:453) at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:233) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:424) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:419) at oracle.adf.model.bc4j.DCJboDataControl.rebuildApplicationModule(DCJboDataControl.java:1536) at oracle.adf.model.bc4j.DCJboDataControl.beginRequest(DCJboDataControl.java:1396) at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:99) at oracle.adf.model.BindingContext.get(BindingContext.java:457) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248) at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383) at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:127) at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51) at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277) at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296) at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425) at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54) at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44) at oracle.adf.model.BindingContext.get(BindingContext.java:483) at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:313) at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:633) at oracle.adf.model.BindingRequestHandler.isPageViewable(BindingRequestHandler.java:265) at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:169) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:161) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)## Detail 0 ##oracle.jbo.DMLException: JBO-26061: Error while opening JDBC connection. at oracle.jbo.server.ConnectionPool.createConnection(ConnectionPool.java:220) at oracle.jbo.server.ConnectionPool.instantiateResource(ConnectionPool.java:135) at oracle.jbo.pool.ResourcePool.createResource(ResourcePool.java:536) at oracle.jbo.pool.ResourcePool.useResource(ResourcePool.java:326) at oracle.jbo.server.ConnectionPool.getConnectionInternal(ConnectionPool.java:87) at oracle.jbo.server.ConnectionPool.getConnection(ConnectionPool.java:66) at oracle.jbo.server.ConnectionPoolManagerImpl.getConnection(ConnectionPoolManagerImpl.java:56) at oracle.jbo.server.DBTransactionImpl.establishNewConnection(DBTransactionImpl.java:911) at oracle.jbo.server.DBTransactionImpl.initTransaction(DBTransactionImpl.java:1156) at oracle.jbo.server.DBTransactionImpl.initTxn(DBTransactionImpl.java:5891) at oracle.jbo.server.DBTransactionImpl2.connect(DBTransactionImpl2.java:120) at oracle.jbo.common.ampool.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:194) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolConnect(ApplicationPoolMessageHandler.java:454) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolMessage(ApplicationPoolMessageHandler.java:343) at oracle.jbo.server.ApplicationModuleImpl.doPoolMessage(ApplicationModuleImpl.java:7763) at oracle.jbo.common.ampool.ApplicationPoolImpl.sendPoolMessage(ApplicationPoolImpl.java:4074) at oracle.jbo.common.ampool.ApplicationPoolImpl.prepareApplicationModule(ApplicationPoolImpl.java:2161) at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1961) at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2793) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:453) at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:233) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:424) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:419) at oracle.adf.model.bc4j.DCJboDataControl.rebuildApplicationModule(DCJboDataControl.java:1536) at oracle.adf.model.bc4j.DCJboDataControl.beginRequest(DCJboDataControl.java:1396) at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:99) at oracle.adf.model.BindingContext.get(BindingContext.java:457) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248) at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383) at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:127) at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51) at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277) at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296) at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425) at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54) at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44) at oracle.adf.model.BindingContext.get(BindingContext.java:483) at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:313) at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:633) at oracle.adf.model.BindingRequestHandler.isPageViewable(BindingRequestHandler.java:265) at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:169) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:161) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)## Detail 0 ##java.sql.SQLException: Io exception: The Network Adapter could not establish the connection at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:138) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:175) at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:287) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:328) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:430) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:151) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:608) at java.sql.DriverManager.getConnection(DriverManager.java:525) at java.sql.DriverManager.getConnection(DriverManager.java:140) at oracle.jbo.server.ConnectionPool.createConnection(ConnectionPool.java:189) at oracle.jbo.server.ConnectionPool.instantiateResource(ConnectionPool.java:135) at oracle.jbo.pool.ResourcePool.createResource(ResourcePool.java:536) at oracle.jbo.pool.ResourcePool.useResource(ResourcePool.java:326) at oracle.jbo.server.ConnectionPool.getConnectionInternal(ConnectionPool.java:87) at oracle.jbo.server.ConnectionPool.getConnection(ConnectionPool.java:66) at oracle.jbo.server.ConnectionPoolManagerImpl.getConnection(ConnectionPoolManagerImpl.java:56) at oracle.jbo.server.DBTransactionImpl.establishNewConnection(DBTransactionImpl.java:911) at oracle.jbo.server.DBTransactionImpl.initTransaction(DBTransactionImpl.java:1156) at oracle.jbo.server.DBTransactionImpl.initTxn(DBTransactionImpl.java:5891) at oracle.jbo.server.DBTransactionImpl2.connect(DBTransactionImpl2.java:120) at oracle.jbo.common.ampool.DefaultConnectionStrategy.connect(DefaultConnectionStrategy.java:194) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolConnect(ApplicationPoolMessageHandler.java:454) at oracle.jbo.server.ApplicationPoolMessageHandler.doPoolMessage(ApplicationPoolMessageHandler.java:343) at oracle.jbo.server.ApplicationModuleImpl.doPoolMessage(ApplicationModuleImpl.java:7763) at oracle.jbo.common.ampool.ApplicationPoolImpl.sendPoolMessage(ApplicationPoolImpl.java:4074) at oracle.jbo.common.ampool.ApplicationPoolImpl.prepareApplicationModule(ApplicationPoolImpl.java:2161) at oracle.jbo.common.ampool.ApplicationPoolImpl.doCheckout(ApplicationPoolImpl.java:1961) at oracle.jbo.common.ampool.ApplicationPoolImpl.useApplicationModule(ApplicationPoolImpl.java:2793) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:453) at oracle.jbo.http.HttpSessionCookieImpl.useApplicationModule(HttpSessionCookieImpl.java:233) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:424) at oracle.jbo.common.ampool.SessionCookieImpl.useApplicationModule(SessionCookieImpl.java:419) at oracle.adf.model.bc4j.DCJboDataControl.rebuildApplicationModule(DCJboDataControl.java:1536) at oracle.adf.model.bc4j.DCJboDataControl.beginRequest(DCJboDataControl.java:1396) at oracle.adf.model.binding.DCDataControlReference.getDataControl(DCDataControlReference.java:99) at oracle.adf.model.BindingContext.get(BindingContext.java:457) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:280) at oracle.adf.model.binding.DCUtil.findSpelObject(DCUtil.java:248) at oracle.adf.model.binding.DCUtil.findContextObject(DCUtil.java:383) at oracle.adf.model.binding.DCIteratorBinding.<init>(DCIteratorBinding.java:127) at oracle.jbo.uicli.binding.JUIteratorBinding.<init>(JUIteratorBinding.java:60) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:87) at oracle.jbo.uicli.binding.JUIteratorDef.createIterBinding(JUIteratorDef.java:51) at oracle.adf.model.binding.DCIteratorBindingDef.createExecutableBinding(DCIteratorBindingDef.java:277) at oracle.adf.model.binding.DCBindingContainerDef.createExecutables(DCBindingContainerDef.java:296) at oracle.adf.model.binding.DCBindingContainerDef.createBindingContainer(DCBindingContainerDef.java:425) at oracle.adf.model.binding.DCBindingContainerReference.createBindingContainer(DCBindingContainerReference.java:54) at oracle.adf.model.binding.DCBindingContainerReference.getBindingContainer(DCBindingContainerReference.java:44) at oracle.adf.model.BindingContext.get(BindingContext.java:483) at oracle.adf.model.BindingContext.findBindingContainer(BindingContext.java:313) at oracle.adf.model.BindingContext.findBindingContainerByPath(BindingContext.java:633) at oracle.adf.model.BindingRequestHandler.isPageViewable(BindingRequestHandler.java:265) at oracle.adf.model.BindingRequestHandler.beginRequest(BindingRequestHandler.java:169) at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:161) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:620) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:369) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:865) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:447) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:215) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.1) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)
========================================

Io exception: The Network Adapter could not establish the connection..
I'd check in tools->embedded oc4j server preferences (current workspace app / data sources) and do a refresh now.
Next, make sure your app module config files reference the right connection by right clicking the app module and selecting configuration. lastly, make sure the project points to the right database connection by right clicking project -> properties, business components.

JBO-26061, Error while opening JDBC connection, please help

Hello
I am new to JDeveloper suite.
I tried to follow BC4J/JSP tutorial found in "JDeveloper Handbook" but every time I try to execute my starter page, I get the following error:
Error Message: JBO-29000: Unexpected exception caught: oracle.jbo.DMLException, msg=JBO-26061: Error while opening JDBC connection.
Connection test runs successfully in JDev itself and I had no trouble with creating BC4j components (entity object, view and application module), mapping fields etc. Bc4j.xcfg file looks OK as well as server.xml of OC4J server.
I guess that OC4J server is unable to connect to database, but I cannot see why and what could be done about it.
Any recommendations would be warmly appreciated. Please send cc to [email protected] as well.
Thanks in advance,
Kristjan

Kristjan,
BC4J has a tester that can be used to test applications. Right mousew click onto the Application Module and choose tester from the menu. Use setting as defaulted. If this can't connect, then obviously the database connection defined for the Application module is different from the one you are testing. Also, make sure the database password of the connection gets deployed (checkbox option in the connection dialog)
Frank

Error Message: JBO-26061:Error while opening JDBC connection

JDeveloper 9i was connecting to 9i database (localhost) before and now it is not connecting giving IO Exception.
Getting JBO-26061:Error while opening JDBC connection, when run from OC4J.
Should we give any path to jdbc classes12.zip? Does it have anything to do with changing host name; that is the only thing I have done before getting this error.
Please help!!

Please check the connection details and make sure the password is deployed. You can verify the connection
details by looking at Connections | DataBase node in the Navigator pane.
1. Also, test your BC4J middlet tier using BC4J Tester. To do that select your Application Module in the BC4J project,
right click | Test..
2. Check your BC4J Configuration and make sure it has the right connection information. To do that select your Application Module in the BC4J project,
right click | Configurations....
Hi
I'm learning Jdeveloper not long time, i'm still new in Jdeveloper. I have learn to build BC2J JSP Development from oracle9i jdeveloper viewlet demonstration. when I compile, its have an error "warning: ISO-8859-1character set may not match project compiler setting". When I run, its show from browser and have an error :
"Error Message: JBO-30003: The application pool (mypackage.MypackageModule.MypackageModuleLocal) failed to checkout an application module due to the following exception:
Error Message: JBO-26061: Error while opening JDBC connection."
So what can I do, I'm really need your help.
Thanks in advance

What are the DMS metrics related to Open/Total JDBC Connections?

Hi,
We need to monitor that state of the JDBC Connection Pool (Available conns, Max conns, etc.) by reading DMS, however we are struggling to find which is the right DMS metric associated to it?
We tried the table modplsql_DatabaseConnectionPool however it seems to be never loaded.
Thanks in advance!
CR

Frances,
For example, use "min-connections" to specify how
many connections to pre-populate in the pool.Since when does "min-connections" pre-populate the pool?
According to my observations, there are no database connections established when OC4J starts up. Connections are only created when necessary. As a matter of fact, I still haven't seen anything in the behaviour of OC4J to indicate that it doesn't totally ignore the "min-connections" attribute.
[I have, on the other hand, seen that "max-connections" is taken into account by OC4J.]
Good Luck,
Avi.

Total JDBC connections rising steadily

Our J2EE application has been crashing recently. The app stops responding to requests and is eventually restarted by OPMN. I have been monitoring it through the enterprise manager web page since the the crashes seem to be related to waiting for database resources. The number of open JDBC connections stays low, always less than 10. However, the total number of JDBC connections rises steadily through the day getting well past 1000. Is this normal?
Does it represent leakage of connections from the pool?
We are using OC4J 9.0.4.0 with a patch to fix the connection pool bug.
The data-source is defined as follows:
<data-source
     class="com.evermind.sql.DriverManagerDataSource"
     name="OracleDS"
     location="jdbc/OracleCoreDS"
     xa-location="jdbc/xa/OracleXADS"
     ejb-location="jdbc/OracleDS"
     connection-driver="oracle.jdbc.driver.OracleDriver"
     username="asuser"
     password="unguessable"
     url="jdbc:oracle:thin:@dbserver:1526:dbinstance"
     inactivity-timeout="30"
/>

The Total number of connections figure indicates the total number of connections that have been opened since OC4J was started.
The Open number of connections figure indicates the total number of connections currently open.
Since you say that the open connections figure stays below 10, this suggests that you do not have a connection leak, but your inactivity time out is too low, and therefore your connections are being closed before they can be reused - hence the large total number of connections.
Good luck.

Total JDBC Connections

I have deployed an application to Apps Server 9.0.4.
I am using oracle.jdbc.pool.OracleConnectionPoolDataSource. I have closed all the connections, however Open JDBC Connections is always 0 and Total JDBC Connections is increasing.
My inactivity time out is 60 seconds.
Is this normal or something wrong somewhere?
Any help is highly appreciable.
Thanks

The Total number of connections figure indicates the total number of connections that have been opened since OC4J was started.
The Open number of connections figure indicates the total number of connections currently open.
Since you say that the open connections figure stays below 10, this suggests that you do not have a connection leak, but your inactivity time out is too low, and therefore your connections are being closed before they can be reused - hence the large total number of connections.
Good luck.

Infinite loop - A stale JDBC connection was detected in the connection pool

Hello.
I have a simple JSP (no servlets) application with a single Fastlane Reader style view object to back it up. I'm deploying my application under OC4J 10g 9.0.4 using BC4J 9.0.3.11.50 (JDev 9.0.3.3) on RHEL 3.0, j2sdk1.4.2_03.
I run with -Djbo.debugoutput=console
Every so often, intermittently, and totally unpredictably, I see this on stdout for OC4J:
03/12/23 07:42:07 [33326] A stale JDBC connection was detected in the connection pool
03/12/23 07:42:07 [33327] Creating a new pool resource
03/12/23 07:42:07 [33328] Trying connection/2: url='jdbc:oracle:thin:@somedb:1521:somedbsid' info='{user=someuser, password=somepass, dll=ocijdbc9, protocol=thin}' ...
This message occurs over and over ultimately resulting in hundreds upon thousands of failed connections to the database. I have to forcibly restart OC4J to stop it.
The weird thing about it is that it seems to only start doing this on one system (which is our internal deployment site); it works fine under an OC4J running in IDE or on a preproduction machine.
Has anyone experienced this before - or at the very least, can clue me in on getting BC4J to be a little more verbose on the connection failure?
Thanks and Happy Holidays,
Sean

Hi did you find an answer?
if so, could you post it here?
thanks

Problem closing sockets when using OCI8 JDBC connections

Hi,
We have a java thread that maintains a socket connection with a Telnet client. We are finding that this thread is unable to successfully close this connection with Socket.close(). The reason that close() fails appears to be that the same thread is creating an (OCI8 driver) JDBC connection via another Java object. If we don't create the JDBC connection within this thread the socket closes correctly.
Has anybody else experienced such problems?
We believe that this problem might be related to a BugRat report #391.
Cheers.
Max
null

Sounds like a mis-match between the JDBC Drivers and the installed Oracle Client.
The JDBC Drivers with JDeveloper 9.0.3 should be the 9.0.1.3 versions (included with the iAS Admin Client and iAS 9.0.2)
Also note, the JDBC driver used by OC4J is "classes12dms.jar", not "classes12.jar"
Hope this helps,
Rob

Thread stuck in socketConnect() while openning JDBC connection

We are suferring a very strange behaviour in one of our servers.
Sometimes a thread stucks for serveral minutes while obtaining a JDBC connection, this is the stack trace down to our method:
"[STUCK] ExecuteThread: '82' for queue: 'weblogic.kernel.Default (self-tuning)'" RUNNABLE native
     java.net.PlainSocketImpl.socketConnect(Native Method)
     java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
     java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
     java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
     java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
     java.net.Socket.connect(Socket.java:529)
     oracle.net.nt.TcpNTAdapter.connect(TcpNTAdapter.java:150)
     oracle.net.nt.ConnOption.connect(ConnOption.java:130)
     oracle.net.nt.ConnStrategy.execute(ConnStrategy.java:353)
     oracle.net.resolver.AddrResolution.resolveAndExecute(AddrResolution.java:422)
     oracle.net.ns.NSProtocol.establishConnection(NSProtocol.java:686)
     oracle.net.ns.NSProtocol.connect(NSProtocol.java:246)
     oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1056)
     oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:308)
     oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:538)
     oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:228)
     oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32)
     oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521)
     oracle.jdbc.pool.OracleDataSource.getPhysicalConnection(OracleDataSource.java:280)
     oracle.jdbc.xa.client.OracleXADataSource.getPooledConnection(OracleXADataSource.java:482)
     oracle.jdbc.xa.client.OracleXADataSource.getXAConnection(OracleXADataSource.java:156)
     oracle.jdbc.xa.client.OracleXADataSource.getXAConnection(OracleXADataSource.java:101)
     weblogic.jdbc.common.internal.XAConnectionEnvFactory.makeConnection(XAConnectionEnvFactory.java:477)
     weblogic.jdbc.common.internal.XAConnectionEnvFactory.createResource(XAConnectionEnvFactory.java:177)
     weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1249)
     weblogic.common.resourcepool.ResourcePoolImpl.makeResources(ResourcePoolImpl.java:1166)
     weblogic.common.resourcepool.ResourcePoolImpl.reserveResourceInternal(ResourcePoolImpl.java:450)
     weblogic.common.resourcepool.ResourcePoolImpl.reserveResource(ResourcePoolImpl.java:342)
     weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:419)
     weblogic.jdbc.common.internal.ConnectionPool.reserve(ConnectionPool.java:324)
     weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:94)
     weblogic.jdbc.common.internal.ConnectionPoolManager.reserve(ConnectionPoolManager.java:63)
     weblogic.jdbc.jta.DataSource.getXAConnectionFromPool(DataSource.java:1677)
     weblogic.jdbc.jta.DataSource.refreshXAConnAndEnlist(DataSource.java:1445)
     weblogic.jdbc.jta.DataSource.getConnection(DataSource.java:446)
     weblogic.jdbc.jta.DataSource.connect(DataSource.java:403)
     weblogic.jdbc.common.internal.RmiDataSource.getConnection(RmiDataSource.java:364)
     org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:126)
     org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94)
     org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162)
     org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.connectInternal(DatasourceAccessor.java:327)
     org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.connectInternal(DatabaseAccessor.java:291)
     org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.reconnect(DatasourceAccessor.java:558)
     org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.reconnect(DatabaseAccessor.java:1433)
     org.eclipse.persistence.internal.databaseaccess.DatasourceAccessor.incrementCallCount(DatasourceAccessor.java:302)
     org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:570)
     org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:526)
     org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:529)
     org.eclipse.persistence.internal.sessions.IsolatedClientSession.executeCall(IsolatedClientSession.java:133)
     org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:206)
     org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:192)
     org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectOneRow(DatasourceCallQueryMechanism.java:664)
     org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectOneRowFromTable(ExpressionQueryMechanism.java:2582)
     org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectOneRow(ExpressionQueryMechanism.java:2553)
     org.eclipse.persistence.queries.ReadObjectQuery.executeObjectLevelReadQuery(ReadObjectQuery.java:439)
     org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1076)
     org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:740)
     org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1036)
     org.eclipse.persistence.queries.ReadObjectQuery.execute(ReadObjectQuery.java:407)
     org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1122)
     org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2908)
     org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1291)
     org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1273)
     org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1233)
     org.eclipse.persistence.internal.jpa.EntityManagerImpl.executeQuery(EntityManagerImpl.java:778)
     org.eclipse.persistence.internal.jpa.EntityManagerImpl.findInternal(EntityManagerImpl.java:722)
     org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:616)
     org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:495)
     sun.reflect.GeneratedMethodAccessor182.invoke(Unknown Source)
     sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     java.lang.reflect.Method.invoke(Method.java:597)
     weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:106)
     weblogic.deployment.TransactionalEntityManagerProxyImpl.invoke(TransactionalEntityManagerProxyImpl.java:77)
     weblogic.deployment.BasePersistenceContextProxyImpl.invoke(BasePersistenceContextProxyImpl.java:87)
     weblogic.deployment.TransactionalEntityManagerProxyImpl.invoke(TransactionalEntityManagerProxyImpl.java:18)
     $Proxy71.find(Unknown Source)
     com.ericsson.adm.ejb.PromoProcessorMDB.processRequest(PromoProcessorMDB.java:181)
I checked OS tcp_syn_retries, is 5, an exception should be raised after 180 seconds, isnt?
Even more weird is that sometimes a entityManager.find() give us null object even if the database record of the sougth persisted object exists.
It seems that we have a network problem here but WLS / JVM is not throwing exceptions so we cant show to network administrators this problem.
Our Weblogic is version 10.3.4 running on Redhat 5 with kernel 2.63.18-194.e15.
JDK reports itself as "Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)".
We have the exact replica of the faulty server (hardware and configuration) running the same application in the same domain connected to the same network switch connecting to the same Oracle instance but in that server we haven't suffer such problem.
Edited by: user13413948 on 15-feb-2012 15:37
Edited by: user13413948 on 15-feb-2012 15:38

Io exception: The Network Adapter could not establish the connection..
I'd check in tools->embedded oc4j server preferences (current workspace app / data sources) and do a refresh now.
Next, make sure your app module config files reference the right connection by right clicking the app module and selecting configuration. lastly, make sure the project points to the right database connection by right clicking project -> properties, business components.

How to close open JDBC connections

Hi people. I´m Using Jdev 10.1.3.2 and OAS 10g.
In my application when a User closes the browser or click in logout, the JDBC connection remains active on the server.
I wonder what the best measure to close these connections on logout of the system?
Thanks Willian

You might want to read the chapter about how ADF BC handles the database connections and what variables you have to control it:
http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcservices.htm#CHDJDBJB
http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/bcampool.htm#sm0306
http://download.oracle.com/docs/cd/E12839_01/web.1111/b31974/deployment_topics.htm#CHDFJADJ

Auto-Commit and Pooled JDBC Connections

Forum Members,
If I am using Oracle Pooled JDBC Connections in the OC4J container is auto-commit set to "true" by default?
If I set auto-commit to "false" and then close the logical connection, when that connection is handed out again on a later call to getConnection(), is auto-commit automatically set back to "true"?
Thanks,
Richard

Richard,
Pardon me if I am stating the obvious, but you could test that in your code by invoking the getAutoCommit() method in interface java.sql.Connection.
My experience (with OC4J stand-alone versions up to -- and including -- 10.1.2) is that the behaviour depends on which data source you have configured. For example, if you have defined an "ejb-location" attribute in your "data-sources.xml" file, and you use that as your JNDI lookup for your data source, then OC4J handles transactions and you shouldn't deal with "auto-commit" at all. See the following post for more details:
Re: OC4J 10.1.3 Preview 4 - Global transaction active
But if you have defined a "location" attribute and use that, then you do need to handle transactions explicitly.
Hope this helps.
Good Luck,
Avi.

Getting Exception in jdbc connection got from DataSource in Oracle AS

Hi
i am using data source in my application.
When my application is invoked it gets the jdbc connection from the data source, performs set of operations and then releases the connection.
But if the application is invoked after a long time e.g. 10 hours then i get the following exceptions which i have logged:
Io exception: Connection reset
and the other exception is given below:
Closed Connection
The data-sources.xml is as follows:
<?xml version = '1.0' encoding = 'windows-1252'?>
<!DOCTYPE data-sources PUBLIC "Orion data-sources" "http://xmlns.oracle.com/ias/dtds/data-sources.dtd">
<data-sources>
<data-source
name="MYDS"
class="oracle.jdbc.pool.OracleConnectionCacheImpl"
location="jdbc/myDSCON"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="xxxxxxxx"
password="xxxxxxxx"
url="jdbc:oracle:thin:@localhost:1521:orcl"
inactivity-timeout="30"
max-connections="100" >
<property name="cacheScheme" value="1" />
</data-source>
</data-sources>
Please let me know what is wrong with my application or configuration setting or something is wrong with oracle application server.

Hi,
I found one solution which is for 10.1.2.x and i am using Oc4j 10.1.3.1 but solution is below
Solution
There is a new setting called "ValidateConnections" from 10.1.2.x. This setting will make sure to check the validity of the connections before it is assigned to the application.
1. Download and apply the patch for unpublished bug 4305639 for your current 10.1.2.x version. If a patch is not already available then please submit a backport request to get the patch to your version.
2. Set the command line option "-DValidateConnections=true" and restart the container. This can be set via EM AS control or by manually updating opmn.xml file. After the changes the options should look like
<process-type id="oc4j_test1" module-id="OC4J">
<module-data>
<category id="start-parameters">
<data id="java-options" value="-server -Djava.security.policy=/opt/oracle/jw101202/j2ee/oc4j_test1/config/java2.policy -Djava.awt.headless=true -DValidateConnections=true" />
<data id="oc4j-options" value="-properties"/>
Regards,

OAS 10.1 3.1 0 OC4J JDBC Connection/Timeout settings

Similar Messages

Maybe you are looking for