WLS 10.3.0 - Connection Leak on JDBC Data Source.

We are observing connection leaks in our environment.
We have enabled connection leak profiling. however we are unable to analyze the output.
Need some help in analyzing the Output.
Also are there any specific way to gather the exact stack trace, to get more detailed information about. Where exactly the connection leak is occurring.

Hi,
Could you enable the following debug flag:
-Dweblogic.Debug=weblogic.JDBCConn -Dweblogic.JDBCConnStackTrace
Also, following is the sample way to minimise the connection leaks. Could you please chk the following:
<JDBCConnectionPool CapacityIncrement="5"
ConnLeakProfilingEnabled="true"
ConnectionCreationRetryFrequencySeconds="5"
DriverName="oracle.jdbc.driver.OracleDriver"
HighestNumUnavailable="0" HighestNumWaiters="5000"
InactiveConnectionTimeoutSeconds="30" InitialCapacity="10"
LoginDelaySeconds="1" MaxCapacity="150" Name="SimpleP1"
PasswordEncrypted="left out"
PreparedStatementCacheSize="0"
Properties="user=leftout;protocol=thin" RefreshMinutes="1"
ShrinkFrequencySeconds="60" ShrinkingEnabled="true"
StatementCacheSize="10" Targets="bs04prod"
TestConnectionsOnCreate="false" TestConnectionsOnRelease="false"
TestConnectionsOnReserve="true" TestFrequencySeconds="120"
TestTableName="dual" URL="url left out"/>
<JDBCDataSource JNDIName="left out"
Name="SimpleP1DataSource" PoolName="SimpleP1" Targets="left out"/>
<SNMPAgent Enabled="true" Name="bsimple" SNMPPort="1161" TargetedTrapDestinations=""/>
<JMSFileStore Directory="rmfilestore" Name="FileStore"/>
<WSReliableDeliveryPolicy DefaultRetryCount="10"
DefaultTimeToLive="60000" Name="RMDefaultPolicy" Store="FileStore"/>
<EmbeddedLDAP
CredentialEncrypted="left out" Name="left out"/>
<SecurityConfiguration
CredentialEncrypted="left out"
Name="left out" RealmBootStrapVersion="1"/>
regards,
Zeno

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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:585_) \\ at java.io.ObjectStreamClass.invokeReadResolve(_ObjectStreamClass.java:1033_) \\ at java.io.ObjectInputStream.readOrdinaryObject(_ObjectInputStream.java:1728_) \\ at java.io.ObjectInputStream.readObject0(_ObjectInputStream.java:1305_) \\ at java.io.ObjectInputStream.readObject(_ObjectInputStream.java:348_) \\ at weblogic.utils.io.ChunkedObjectInputStream.readObject(_ChunkedObjectInputStream.java:197_) \\ at weblogic.rjvm.MsgAbbrevInputStream.readObject(_MsgAbbrevInputStream.java:564_) \\ at weblogic.utils.io.ChunkedObjectInputStream.readObject(_ChunkedObjectInputStream.java:193_) \\ at weblogic.rmi.internal.ObjectIO.readObject(_ObjectIO.java:62_) \\ at 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But at the same time the output when connected to WLS 10.0 is :
Get DMQ \\Get dataSource \\Get dataSource1 \\Done
(so that the test passed)
Could you give me a piece of advice ?
Thanks,
Sergey

I hit the same problem as yours. This issue is caused by JDK version. The JDK used by Weblogic 10.3 is java 6, while your client program's jdk version is java5. So change the both of them to java 6. This issue will be fixed.
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sree

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here's the error:
Connection verification failed for data source: forum
com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.ConnectException MESSAGE: Connection timed out: connect STACKTRACE: java.net.ConnectException: Connection timed out: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:519) at java.net.Socket.connect(Socket.java:469) at java.net.Socket.(Socket.java:366) at java.net.Socket.(Socket.java:208) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:173) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:267) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2739) at com.mysql.jdbc.Connection.(Connection.java:1553) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java:589) at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(ConnectionRunner. java:67) at java.lang.Thread.run(Thread.java:619) ** END NESTED EXCEPTION ** Last packet sent to the server was 0 ms ago.

http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6ef0253
HTH
Tim Carley
www.recfusion.com
[email protected]

Connection verification failed for data source:

Hi,
I having problem with mySQL datasource and getting the above error. This is only happening in our staging server. We are using ColdFusion 8 running JRUN4 and trying to connect to mySQL v 5.1.41. I tried adding DSN from my localhost using ColdFusion 9 developer edition and I am able to connect without error.I know that mysql server, username & password is valid. I can access the mysql also using mySQL gui tool from different pc and it works fine. I'm believe that this has something to do with mySQL driver? Can somebody shed some light on how can I fix my DSN connection problem? Thank you.
here's the error:
Connection verification failed for data source: forum
com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.ConnectException MESSAGE: Connection timed out: connect STACKTRACE: java.net.ConnectException: Connection timed out: connect at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333) at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366) at java.net.Socket.connect(Socket.java:519) at java.net.Socket.connect(Socket.java:469) at java.net.Socket.(Socket.java:366) at java.net.Socket.(Socket.java:208) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:173) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:267) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2739) at com.mysql.jdbc.Connection.(Connection.java:1553) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java :589) at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(Connect ionRunner.java:67) at java.lang.Thread.run(Thread.java:619) ** END NESTED EXCEPTION ** Last packet sent to the server was 0 ms ago.

Also make sure your firewall has the required port open (1433
default) and if you are running 2003 on the SQL box, especially if
you ran the security Wizard, make sure the IPSec is allowing the CF
box to communicate with it, and vise verse.

JDBC Data Sources: Potential Issue with JDeveloper 10.1.3.4

I think I found a bug or issue with the latest JDeveloper 10.1.3.4 release when using JDBC Data Sources on the Embedded OC4J container.
To state the issule bluntly, If I use a JDBC Data Source in an ADF Faces application, I get the following error on the screen when I run my application if I create a simple page using a Form layout for database data:
[http://cs.uwindsor.ca/~ruston7/jdbcError.jpg]
Or if I use a simple drag and drop ADF Faces Table:
javax.faces.el.PropertyNotFoundException: Error testing property '<<FIRST_FIELD_ON_THE_PAGE>>' in bean of type null
    at com.sun.faces.el.PropertyResolverImpl.isReadOnly(PropertyResolverImpl.java:274)
    at oracle.adfinternal.view.faces.model.FacesPropertyResolver.isReadOnly(FacesPropertyResolver.java:124)
    at com.sun.faces.el.impl.ArraySuffix.isReadOnly(ArraySuffix.java:236)
    at com.sun.faces.el.impl.ComplexValue.isReadOnly(ComplexValue.java:209)
    at com.sun.faces.el.ValueBindingImpl.isReadOnly(ValueBindingImpl.java:266)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.EditableValueRenderer.getReadOnly(EditableValueRenderer.java:211)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.FormElementRenderer.renderAsElement(FormElementRenderer.java:155)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.InputLabelAndMessageRenderer.getLabelFor(InputLabelAndMessageRenderer.java:53)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.LabelAndMessageRenderer$Label.getForId(LabelAndMessageRenderer.java:500)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.OutputLabelRenderer.encodeAll(OutputLabelRenderer.java:69)
    at oracle.adfinternal.view.faces.renderkit.core.CoreRenderer.delegateRenderer(CoreRenderer.java:281)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.LabelAndMessageRenderer.encodeAll(LabelAndMessageRenderer.java:123)
    at oracle.adfinternal.view.faces.renderkit.core.xhtml.InputLabelAndMessageRenderer.encodeAll(InputLabelAndMessageRenderer.java:94)
    at oracle.adfinternal.view.faces.renderkit.core.CoreRenderer.encodeEnd(CoreRenderer.java:169)
    at oracle.adf.view.faces.component.UIXComponentBase.encodeEnd(UIXComponentBase.java:624)
    at oracle.adfinternal.view.faces.renderkit.core.CoreRenderer.encodeChild(CoreRenderer.java:246)When I change my Application Module connection to a JDBC URL, this all works perfectly. Also, everything works fine when I deploy to our Oracle AS 10.1.3 application servers.
I also tried this on a different computer using a fresh install of JDeveloper just to make sure that the copy of JDeveloper that I downloaded didn't have a fluke in it.
Thanks!

M. Ruston,
It must be something on your side. i just tried the same thing using the employees table from the HR sample schema (it has a date column). It works with JDBC URL and datasource both.
Just out of curiosity - if you look at the properties for your Business Components project at the business components section, what does it show for the SQL Flavor and Type Map?
John

Connection verification failed for data source on port 1433

Trying to set up a DSN for a SQL Server database on a new computer and it's failing every time.
Connection verification failed for data source: csf
java.sql.SQLNonTransientConnectionException: [Macromedia][SQLServer JDBC Driver]Error establishing socket to host and port: SANDYPC:1433. Reason: Connection refused: connect
The root cause was that: java.sql.SQLNonTransientConnectionException: [Macromedia][SQLServer JDBC Driver]Error establishing socket to host and port: SANDYPC:1433. Reason: Connection refused: connect
Now, when I installed CF 11, it installed on port 8500. However, when I try changing the port in the setup to 8500, I get this error:
Connection verification failed for data source: csf
java.sql.SQLException: Timed out trying to establish connection
The root cause was that: java.sql.SQLException: Timed out trying to establish connection
I cannot find anything online on how to fix this! HELP!!!

Hi,
Is that SQL Express edition? If so perhaps TCP protocol is not enabled. Is Windows firewall turned on? Check port 1433 is open.
Normally you would not create a datasource to apache port 8500, that is a web server not database server port.
HTH, Carl.

Excel SSAS Tabular error: An error occurred during an attempt to establish a connection to the external data source

Hello there,
I have an Excel report I created which works perfectly fine on my dev environment, but fails on my test environment when I try to do a data refresh.
The key difference between both dev and test environments is that in dev, everything is installed in one server:
SharePoint 2013
SQL 2012: Database Instance, SSAS Instance, SSRS for SharePoint, SSAS POWERPIVOT instance (Powerpivot for SharePoint).
In my test and production environments, the architecture is different:
SQL DB Servers in High Availability (irrelevant for this report since it is connecting to the tabular model, just FYI)
SQL SSAS Tabular server (contains a tabular model that processes data from the SQL DBs).
2x SharePoint Application Servers (we installed both SSRS and PowerPivot for SharePoint on these servers)
2x SharePoint FrontEnd Servers (contain the SSRS and PowerPivot add-ins).
Now in dev, test and production, I can run PowerPivot reports that have been created in SharePoint without any issues. Those reports can access the SSAS Tabular model without any issues, and perform data refresh and OLAP functions (slicing, dicing, etc).
The problem is with Excel reports (i.e. .xlsx files) uploaded to SharePoint. While I can open them, I am having a hard time performing a data refresh. The error I get is:
"An error occurred during an attempt to establish a connection to the external data source [...]"
I ran SQL Profiler on my SSAS Server where the Tabular instance is and I noticed that every time I try to perform a data refresh, I get the following entries:
Every time I try to perform a data refresh, two entries under the user name ANONYMOUS LOGON.
Since things work without any issues on my single-server dev environment, I tried running SQL Server Profiler there as well to see what I get.
As you can see from the above, in the dev environment the query runs without any issues and the user name logged is in fact my username from the dev environment domain. I also have a separated user for the test domain, and another for the production domain.
Now upon some preliminary investigation I believe this has something to do with the data connection settings in Excel and the usage (or no usage) of secure store. This is what I can vouch for so far:
Library containing reports is configured as trusted in SharePoint Central Admin.
Library containing data connections is configured as trusted in SharePoint Central Admin.
The Data Provider referenced in the Excel report (MSOLAP.5) is configured as trusted in SharePoint Central Admin.
In the Excel report, the Excel Services authentication settings is set as "use authenticated user's account". This wortks fine in the DEV environment.
Concerning SecureStore, PowerPivot Configurator has configured it the PowerPivotUnnattendedAccount application ID in all the environments. There is
NO configuration of an Application ID for Excel Services in any of the environments (Dev, test or production). Altough I reckon this is where the solution lies, I am not 100% sure as to why it fails in test and prod. But as I read what I am
writing, I reckon this is because of the authentication "hops" through servers. Am I right in my assumption?
Could someone please advise what am I doing wrong in this case? If it is the fact that I am missing an Secure Store entry for Excel Services, I am wondering if someone could advise me on how to set ip up? My confusion is around the "Target Application
Type" setting.
Thank you for your time.
Regards,
P.

Hi Rameshwar,
PowerPivot workbooks contain embedded data connections. To support workbook interaction through slicers and filters, Excel Services must be configured to allow external data access through embedded connection information. External data access is required
for retrieving PowerPivot data that is loaded on PowerPivot servers in the farm. Please refer to the steps below to solve this issue:
In Central Administration, in Application Management, click Manage service applications.
Click Excel Services Application.
Click Trusted File Location.
Click http:// or the location you want to configure.
In External Data, in Allow External Data, click Trusted data connection libraries and embedded.
Click OK.
For more information, please see:
Create a trusted location for PowerPivot sites in Central Administration:
http://msdn.microsoft.com/en-us/library/ee637428.aspx
Another reason is Excel Services returns this error when you query PowerPivot data in an Excel workbook that is published to SharePoint, and the SharePoint environment does not have a PowerPivot for SharePoint server, or the SQL Server Analysis
Services (PowerPivot) service is stopped. Please check this document:
http://technet.microsoft.com/en-us/library/ff487858(v=sql.110).aspx
Finally, here is a good article regarding how to troubleshoot PowerPivot data refresh for your reference. Please see:
Troubleshooting PowerPivot Data Refresh:
http://social.technet.microsoft.com/wiki/contents/articles/3870.troubleshooting-powerpivot-data-refresh.aspx
Hope this helps.
Elvis Long
TechNet Community Support

How to create JDBC data source w/o LDAP server

I am trying to test using JDBC data source on a computer without a LDAP server. Is there an alterative JNDI solution? How about using file system or RMI registry JNDI service providers?

Any J2EE container should be able to handle that. I use JNDI data sources with Tomcat 4.1.27. I'm sure any other J2EE app server (e.g., WebLogic, WebSphere, JBOSS, etc.) would be able to manage it, too. - MOD

WLS 10.3.0 - Connection Leak on JDBC Data Source.

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