Oracle not releasing control/connections?

Hi,
I am running a .bat file that calls a wrapper java program that calls and waits for SqlPlus to return processing before the java program moves on to the next piece of code.
Oracle 10.0.2, java 1.5/1.6, Windows XP SP3, Windows Server 2003 SE are the versions/environments I have been able to run this on. Within my company there are no issues in calling sqlplus to process some sql file - containing multiple sql statements potentially - and return control back to java and complete without issue.
The problem is when my customer runs the exact same versions/env and scripts/classes etc from within his company then the sql file gets processed and the work gets done but control is never returned back to the java wrapper and so it ends up with a hanging sqlplus.exe and java.exe processes?
What is strange is that they can run a single statement sql file and it does return but as soon as a second line is added it does not.
Has anyone come across this before?
I have asked for their DBA's to get involved and try start tracing the connections going in and see what is happening but I wanted to ask around and see if anyone had come across this before.
So to sum up, same versions of desktops,java,oracle etc but works for me and not client. Only major difference is the DB's we are connecting to.
Thanks!

Yes, bar the minor versions.
I have tested locally on 1.5 and 1.6 , while the customer is running 1.6.

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Hello folks,
I am running in a situation which I haven't seen before.
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Make a back up of /Library/Preferencs/com.apple.AppleFileServer.plist on the server before you make any changes.

Crystal Report Viewer Not Releasing Oracle Database Connections

I have a very simple vb.net 3.5 web application that uses the Crystal Report viewer 2008 to open a report. My requirements are as follows:
1. Reports are built by another company and provided to us and used in a web environment
2. All reports contain parameter fields
3. The web application must be generic enough that a report can be added to a list and the user simply selects the report and provides database login information. The Crystal report viewer with handle the request for parameter values and prompt the user for their values.
4. All reports connect to an Oracle 10g server.
The above requirements have been meet and we have an extremely simple web application that runs the reports. It is working very well other than the crystal report viewer is not releasing the database connections. This is bad because the credentials are on a per user basis and that same user must login to a different oracle application simultaneously. They are being denied access because the credentials are already in use. We do not have control nor influence over the policies in use on the Oracle server. Ideally we would like to control the Crystal Report viewer so that it closes connections after use.
The web application code is:
Private Sub viewReports_Init(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Init
If Not IsPostBack Then
ConfigureCrystalReport()
End If
End Sub
Private Sub ConfigureCrystalReport()
'Load the Crystal Report viewer with a report.
Try
Dim reportPath As String = Server.MapPath(Session("reportname"))
crViewer.ReportSource = reportPath
Catch ex As Exception
Response.Write(Server.MapPath(Session("reportname")) & "
" & ex.Message.ToString & "
" & ex.StackTrace.ToString)
End Try
End Sub
Can anyone shed some light on this topic? Thank you

Hello, Timothy;
By default, having the report in session will hold it open for 20 minutes.
If you create the report as a ReportDocument object you can take it out of session and release it more efficiently. That will release the connection.
    Private Sub ConfigureCrystalReports()
        If (Session("hierarchicalGroupingReport") Is Nothing) Then
            hierarchicalGroupingReport = New ReportDocument()
            hierarchicalGroupingReport.Load(Server.MapPath("Hierarchical Grouping.rpt"))
            Session("hierarchicalGroupingReport") = hierarchicalGroupingReport
        Else
            hierarchicalGroupingReport = CType(Session("hierarchicalGroupingReport"), ReportDocument)
        End If
        myCrystalReportViewer.ReportSource = hierarchicalGroupingReport
    End Sub
In the Form Unload of the Viewer:
            'Take the report out of session
            Session("hierarchicalGroupingReport") = Nothing
            Session.Contents.Remove("hierarchicalGroupingReport")
            'Clean up the ReportDocument object
            hierarchicalGroupingReport.Close
            hierarchicalGroupingReport.Dispose()
            hierarchicalGroupingReport = Nothing
            GC.Collect()
Elaine

Sql * plus 9 is not able to connect oracle 7 database

Today I have installed oracle 9i release 2 and found that the sql * plus provided with is unable to connect oracle database version 7. But before that we were able to connect the oracle 7 database well.
Any one having a clue on that...?
Is it a product bug...?
If so then please provide me some alternative solution clue or patch download link. Please remember in any condition currently it is not possible discard my oracle 7 database.
With Regards.
Soumen.

No, it is not a bug. You just cannot connect with Ora9i R2 SQL*Plus to an Ora7 database.You cannot create a DB link between the two database either, if you are planning on doing that.
A solution is to install Ora8 client, which can connect to both Ora9 and Ora7 database (but a db link will stil be impossible).

Oracle XA library not available - Oracle 10g Release 2.0.1

Hi,
We have downloaded Oracle 10g Release 2.0.1 enterprise edition from oracle site and installed on Red hat Linux 4.0. After installation we found Oracle XA library is missing. Ideally it should be in folder $Oracle_Home/rdbms/xa/.
The entire XA folder is missing in rdbms folder. Since the XA library is missing, we are not able to complie some C++ code which uses XA interface to connect to Oracle DB. Any help on this will be highly appreciated.
Is this possible that XA library only comes with the license version??
Regards,
Sanjiv

There is no such thing in Oracle as a "licensed version." When you download you download the entire product.
But if you don't have a license then you really should contact your Oracle sales rep immediately. First for reasons of ethics but second to get a support contract which it looks like you are going to need to get patches for 10.2.0.4.
My vanilla installation contains it so you might want to try first checking the installation log file for any reference to it.

VS2010 with Oracle 11g Release 2 giving Package did not load correctly

Hey ,
I had a Oracle 11g Release 1 11.1.0 installed on my machine. I had a client and over that a installation for Visual Studio tools for VS2008 installed. So in the directory of 11.1.0 I had two folders of Client 1 and Client2 . I was able to use the tools in VS very well and everything was perfect.
Recently my company has decided to shift to VS2010. Now when I installed Oracle Release 2 11.2 client, it worked perfect ( tested using toad ). But when I install the tools ODTwithODAC112012, it has an issue that when I fire up VS2010 and try to add connection, it gives an error popup saying : " The 'Oracle Developer Tools for Visual Studio .NET' package did not load correctly. It asks me load VS in log mode and see the Activity log. The Activity Log gives the following entry :
<errorinfo>Could not load file or assembly 'Oracle.VsDevTools, Version=4.112.1.2, Culture=neutral, PublicKeyToken=89b483f429c47342' or one of its dependencies. The system cannot find the file specified.</errorinfo>
</entry>
The assembly Oracle.VsDevTools is loaded in GAC which I've checked . So, questions in my mind :
a. Can we have both 11.1 and 11.2 in the same machine, is that the issue?
b. Any solution to solve this issue. Both the setup's go smoothly without any errors. Also I am able to connect to oracle very easily using toad.
Would appreciate any help.
Thanks,
Sumit

You'll probably have better luck posting this over in the ODT forum, but be sure to check the Package Load Failure sticky at the top first..
Oracle Developer Tools for Visual Studio
Having multple versions of ODP installed at once generally isnt a problem but I haven't tried a situation where I've tried to have multiple ODT's at once.
Greg

Weblogic Data source is not releasing connections

Hi All,
Weblogic JDBC data source is not releasing connection until JDBC connection is deleted and created again. Could you please let me know this is a database issue or weblogic jdbc driver issue. We are using weblogic 10.1. Please see the following xml for JDBC driver.
Although maximum connections are set to 300, it stills keeps increasing connections over 300. This issue is resolved only when jdbc data source is deleted and created again.
<?xml version='1.0' encoding='UTF-8'?>
<jdbc-data-source xmlns="http://www.bea.com/ns/weblogic/90" xmlns:sec="http://www.bea.com/ns/weblogic/90/security" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:wls="http://www.bea.com/ns/weblogic/90/security/wls" xsi:schemaLocation="http://www.bea.com/ns/weblogic/920 http://www.bea.com/ns/weblogic/920.xsd">
<name>abc_admin_STGNCB</name>
<jdbc-driver-params>
<url>jdbc:oracle:thin:@10.151.43.54:1521:STGNCB</url>
<driver-name>oracle.jdbc.OracleDriver</driver-name>
<properties>
<property>
<name>user</name>
<value>abc_admin</value>
</property>
<property>
<name>portNumber</name>
<value>1521</value>
</property>
<property>
<name>SID</name>
<value>STGNCB</value>
</property>
<property>
<name>serverName</name>
<value>10.151.43.54</value>
</property>
</properties>
<password-encrypted>{3DES}wc5vg5GIbPtt+b8vWY0i5Q==</password-encrypted>
</jdbc-driver-params>
<jdbc-connection-pool-params>
<initial-capacity>20</initial-capacity>
<max-capacity>300</max-capacity>
<capacity-increment>10</capacity-increment>
<connection-creation-retry-frequency-seconds>30</connection-creation-retry-frequency-seconds>
<statement-cache-size>200</statement-cache-size>
<pinned-to-thread>true</pinned-to-thread>
<identity-based-connection-pooling-enabled>true</identity-based-connection-pooling-enabled>
</jdbc-connection-pool-params>
<jdbc-data-source-params>
<jndi-name>jdbc/ABC_TX_DATASOURCE</jndi-name>
<jndi-name>jdbc/ABC_NON_TX_DATASOURCE</jndi-name>
<jndi-name>jdbc/ABC_TX_EVENT_DATASOURCE</jndi-name>
<jndi-name>jdbc/ABC_NON_TX_EVENT_DATASOURCE</jndi-name>
<jndi-name>jdbc/ABC_DATASOURCE</jndi-name>
<jndi-name>abc.cdb.DataSource</jndi-name>
<global-transactions-protocol>EmulateTwoPhaseCommit</global-transactions-protocol>
</jdbc-data-source-params>
</jdbc-data-source>
Edited by: bpenugon on Aug 24, 2010 8:02 AM

The root cause is pinned-to-thread is enabled. When the application finishes using the connection and calls connection.close(), WebLogic Server keeps the connection with the execute thread and does not return it to the connection pool. The connection pool maximum capacity is ignored when pinned-to-thread is enabled. So you saw the number of connections in connection pool keeps increasing over 300.
Set pinned-to-thread to false can solve the problem.

Oracle not releasing control/connections?

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