Database connection not closing on time out

Hi All,
Not sure if this is the right place for this question but..
I've moved my app (built using jdev10.1.2., adf bc's and jsp's) to an app server. For some reason, the database connection is not closing. I have 46 connections to the database and I''m the only one with the URL, not good.
So can anyone shed any light on this? I thought it should disconnect after a time out but its not.
Any ideas would be gratfully received.
Thanks in advance

or try this one..
Go to the bottom of the tutorial, you will find the configuration...
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/bc9baf90-0201-0010-479a-b49b25598ebf

Similar Messages

Database Connections Not Closing

I'm using iBatis for PostgreSQL database access and frequently have problems with connections not being closed. Here is a copy of my sqlMapConfig file:
============================
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMapConfig
PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
"http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
<properties resource="ibatis.properties" />
<settings
lazyLoadingEnabled="true"
cacheModelsEnabled="true"
enhancementEnabled="false"
useStatementNamespaces="false"
/>
<transactionManager type="JDBC" commitRequired="true">
<dataSource type="DBCP">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<property name="maxActive" value="10"/>
<property name="maxIdle" value="5"/>
<property name="maxWait" value="5000"/>
<property name="logAbandoned" value="true"/>
<property name="removeAbandoned" value="true"/>
<property name="removeAbandonedTimeout" value="1"/>
<property name="Driver.logUnclosedConnections" value="true"/>
</dataSource>
</transactionManager>
<sqlMap resource="job-sqlMap.xml" />
</sqlMapConfig>
============================
Due to the logAbandoned and removeAbandoned settings, I get a report in my log file whenever there is a connection that was not properly closed. Here is one of those log entries:
23:22:51.483 (10) Finalizing a Connection that was never closed:
java.lang.Throwable: Connection was created at this point:
at org.postgresql.jdbc2.AbstractJdbc2Connection.<init>(AbstractJdbc2Connection.java:175)
at org.postgresql.jdbc3.AbstractJdbc3Connection.<init>(AbstractJdbc3Connection.java:30)
at org.postgresql.jdbc3.Jdbc3Connection.<init>(Jdbc3Connection.java:24)
at org.postgresql.Driver.makeConnection(Driver.java:393)
at org.postgresql.Driver.connect(Driver.java:267)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1148)
at org.apache.commons.dbcp.AbandonedObjectPool.borrowObject(AbandonedObjectPool.java:84)
at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:96)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.init(JdbcTransaction.java:48)
at com.ibatis.sqlmap.engine.transaction.jdbc.JdbcTransaction.getConnection(JdbcTransaction.java:89)
at com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForList(MappedStatement.java:139)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:567)
at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForList(SqlMapExecutorDelegate.java:541)
at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForList(SqlMapSessionImpl.java:118)
at com.ibatis.sqlmap.engine.impl.SqlMapClientImpl.queryForList(SqlMapClientImpl.java:94)
at edu.calpoly.lib.multimedia.big.db.AutomaticPeriodUpdateIBatisImplDBHandler.getGamesWithAutomaticUpdatePolicy(AutomaticPeriodUpdateIBatisImplDBHandler.java:154)
at edu.calpoly.lib.multimedia.big.game.AutoUpdateThread.run(AutoUpdateThread.java:155)
The file: AutomaticPeriodUpdateIBatisImplDBHandler.java contains an iBatis call on line # 154:
--> list = sqlMap.queryForList("getGamesWithAutoPolicy", null);
from the map file:
<select id="getGamesWithAutoPolicy" resultClass="java.util.HashMap">
<![CDATA[
SELECT gameid, policy
FROM update_policy
]]>
</select>
Here is the code for the entire method that uses this transaction:
============================
public List getGamesWithAutomaticUpdatePolicy() throws BIGDatabaseFacadeException
List list = new ArrayList();
try
sqlMap.startTransaction();
list = sqlMap.queryForList("getGamesWithAutoPolicy", null);
sqlMap.commitTransaction();
catch(SQLException sqle)
throw new BIGDatabaseFacadeException(sqle);
finally
try
sqlMap.endTransaction();
catch(SQLException sqle)
throw new BIGDatabaseFacadeException(sqle);
return list;
============================
I know that this should be handled as an automatic transaction, but I tried adding the start, commit and end transaction commands in my desperate attempt to fix this problem (but it still didn't help).
Here is my code for creation of sqlMap -
--> sqlMap = SqlMapClientBuilder.buildSqlMapClient(Resources.getResourceAsReader("sqlMaps.xml"));
Except for the fact that occasionally connections are not closed, overall my database access using iBatis works very well.
In the course of trying to fix this problem I've worked to update all my lib files to the latest versions, and here is current status:
My iBatis lib file: ibatis-2.3.4.726.jar
My JDBC driver: postgresql-8.4-701.jdbc3.jar
Required commons files:
commons-dbcp-1.2.2.jar
commons-pool-1.5.3.jar
Note that I tried adding --> commitRequired="true" to the transactionManager in sqlMaps.xml, hoping it might help, but no joy.
Please help me figure out why my database connections often do not close. Thank you very much!

I'm sorry, but I don't understand what you mean by "close the session." I believe iBatis is supposed to take care of all that automatically. My understanding is that all the user does is create the sqlMapClient and then use it along with various map files to query and update the database. iBatis does the rest.

Database connection not closed in Destroy() method of servlet

Hi,
I have a problem with my deployed web application. At first, I thought Glassfish was messing up on me, and after checking the log I could see plenty of null pointer exceptions being thrown at lines in my code where I generate prepared statements from my connection object. I have been initialising my connection in the Init() method of all my classes, and equally, I've been closing it in Destroy(). I can only imagine that destroy() isn't being called - since the log clearly shows "connection success" messages but not "connection closed" messages. I am connecting to the servlets via a J2ME app on my mobile phone. Does connecting in this way somehow not invoke the destroy method when the servlets work is complete? Am I going to need to move all my connection initilisation and closing into the necessary doGet/doPost methods of each of my servlets?
Chris

You shouldn't be keeping the connection that long open. It's a bad design. It will timeout sooner or later and your complete application will crash. Always acquire and close the connection in the shortest possible scope, preferably just in the same method block where you process the query and/or results. If you want to improve performance while connecting, consider using a connection pool.
Back to the actual problem: a servlet is created only once during application's lifetime and not during every request as you appears to think.
You may find this tutorial useful to read on about using the DAO pattern in JSP/Servlet.
[http://balusc.blogspot.com/2008/07/dao-tutorial-use-in-jspservlet.html]

TopLink logical connection not closed

Hi everybody,
I have a problem when using db adapter for polling databases tables. This is using TopLink to access database's data.
My process was running w/o errors till I have started to use external data source defined in OAS.
My oc4j-ra.xml file contains:
============================================================
     <connector-factory location="eis/DB/TestData" connector-name="Database Adapter">
          <config-property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
          <config-property name="connectionString" value=""/>
          <config-property name="userName" value=""/>
          <config-property name="password" value=""/>
          <config-property name="minConnections" value="5"/>
          <config-property name="maxConnections" value="5"/>
          <config-property name="minReadConnections" value="1"/>
          <config-property name="maxReadConnections" value="1"/>
          <config-property name="usesExternalConnectionPooling" value="true"/>
          <config-property name="dataSourceName" value="jdbc/TESTDS"/>
          <config-property name="usesExternalTransactionController" value="true"/>
          <config-property name="platformClassName" value="oracle.toplink.internal.databaseaccess.Oracle9Platform"/>
          <config-property name="usesNativeSequencing" value="true"/>
          <config-property name="sequencePreallocationSize" value="50"/>
          <config-property name="tableQualifier" value=""/>
          <config-property name="defaultNChar" value="false"/>
          <config-property name="usesBatchWriting" value="true"/>
     </connector-factory>
============================================================
Once I have switched to this oc4j-ra.xml configuration file I got the following error in files logs (using the -Djdbc.connection.debug=true flag)
============================================================
06/09/25 11:40:46 OrionCMTConnection not closed, check your code!
06/09/25 11:40:46 Logical connection not closed, check your code!
06/09/25 11:40:46 Created at:
06/09/25 11:40:46 java.lang.Throwable: OrionCMTConnection created
06/09/25 11:40:46      at com.evermind.sql.OrionCMTConnection.<init>(OrionCMTConnection.java:121)
06/09/25 11:40:46      at com.evermind.sql.OrionCMTConnectionFinalize.<init>(OrionCMTConnectionFinalize.java:42)
06/09/25 11:40:46      at com.evermind.util.ClassOptimizerFactory.getOrionCMTConnection(ClassOptimizerFactory.java:80)
06/09/25 11:40:46      at com.evermind.sql.OrionCMTDataSource.getConnection(OrionCMTDataSource.java:237)
06/09/25 11:40:46      at com.evermind.sql.OrionCMTDataSource.getConnection(OrionCMTDataSource.java:227)
06/09/25 11:40:46      at oracle.toplink.jndi.JNDIConnector.connect(JNDIConnector.java:102)
06/09/25 11:40:46      at oracle.toplink.sessions.DatabaseLogin.connect(DatabaseLogin.java:218)
06/09/25 11:40:46      at oracle.toplink.internal.databaseaccess.DatabaseAccessor.reconnect(DatabaseAccessor.java:1323)
06/09/25 11:40:46      at oracle.toplink.internal.databaseaccess.DatabaseAccessor.incrementCallCount(DatabaseAccessor.java:1198)
06/09/25 11:40:46      at oracle.toplink.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:633)
06/09/25 11:40:46      at oracle.toplink.publicinterface.Session.executeCall(Session.java:793)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.CallQueryMechanism.executeCall(CallQueryMechanism.java:131)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.CallQueryMechanism.executeCall(CallQueryMechanism.java:115)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.CallQueryMechanism.executeSelectCall(CallQueryMechanism.java:194)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.CallQueryMechanism.selectAllRows(CallQueryMechanism.java:565)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:733)
06/09/25 11:40:46      at oracle.toplink.internal.queryframework.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:708)
06/09/25 11:40:46      at oracle.toplink.queryframework.ReadAllQuery.execute(ReadAllQuery.java:447)
06/09/25 11:40:46      at oracle.toplink.queryframework.DatabaseQuery.execute(DatabaseQuery.java:493)
06/09/25 11:40:46      at oracle.toplink.queryframework.ReadQuery.execute(ReadQuery.java:125)
06/09/25 11:40:46      at oracle.toplink.publicinterface.Session.internalExecuteQuery(Session.java:1958)
06/09/25 11:40:46      at oracle.toplink.threetier.ClientSession.internalExecuteQuery(ClientSession.java:390)
06/09/25 11:40:46      at oracle.toplink.publicinterface.Session.executeQuery(Session.java:1086)
06/09/25 11:40:46      at oracle.toplink.publicinterface.Session.executeQuery(Session.java:1038)
06/09/25 11:40:46      at oracle.toplink.publicinterface.Session.executeQuery(Session.java:876)
06/09/25 11:40:46      at oracle.tip.adapter.db.inbound.DestructivePollingStrategy.poll(DestructivePollingStrategy.java:211)
06/09/25 11:40:46      at oracle.tip.adapter.db.InboundWork.runOnce(InboundWork.java:247)
06/09/25 11:40:46      at oracle.tip.adapter.db.InboundWork.run(InboundWork.java:213)
06/09/25 11:40:46      at oracle.tip.adapter.fw.jca.work.WorkerJob.go(WorkerJob.java:51)
06/09/25 11:40:46      at oracle.tip.adapter.fw.common.ThreadPool.run(ThreadPool.java:267)
06/09/25 11:40:46      at java.lang.Thread.run(Thread.java:534)
============================================================
Any clue on this?
Thankfully,
amo

Thanks Marc,
I have finally noticed that was not related with some TopLink error.
So, is there any other way to refer in the DBAdapter to an OAS datasource?
Regards,
amo

HT4634 Why does my connection to email server time out on default port?

Why does my connection to email server time out on default port?

Hi there,
There may be a conflict between the network settings and your devices. I would recommend taking a look at the article below and comparing that to your routers current settings.
iOS and OS X: Recommended settings for Wi-Fi routers and access points
http://support.apple.com/kb/ht4199
-Griff W.

Connection not closed in the database server end

Hi,
Our database server (sql server 2000) and java application are running in two different boxes. Because the java application sent to the db server quite a few queries that can not be completed (applications hangs there) due to huge amount of data (18 million records in one table and 1 million records in another table and there are joins among the three tables), we stopped the java program. However, in the db server end, the connections associated with these problem queries were not closed although the java app end already closed these connections by calling connection.close(). When this happened, we have to manually close the connection from sql server enterprise manager.
Here are the questions.
1)what could be the reason why db server does not close the connection?
2)Is there any solution in the java end that could close the connection in the db server end when this situation happens? I say this situation happens, I mean in most cases when java application closes connection, db server closes connections in its end too.
Thanks
Mark

mark.lin wrote:
Thanks for your answers and questions.
Here are the answers to your questions
1)The jdbc driver is jturboJTurbo? Never heard of it. You mean this?
http://www.newatlanta.com/products/jturbo/index.jsp
Why pay for something when you have two options available that are free? One of them is from Microsoft itself. Whose idea was this?
2)It's a desk top application.
It seems to me that it should not be driver issue. I was this happened the Microsoft's own jdbc driver. By jdbc specification, although you don't close the connection explicitly in the program, the connection will be automatically closed in the java app end during garbage collection. Very bad - never depend on this. Always close your ResultSet, Statement, and Connection in reverse order of opening in a finally block, each one wrapped in individual try/catch blocks.
One should never, ever depend on the GC to take care of resources like database connections or resource handles. Those should be cleaned up by your code.
I tested this by intentionally not closing a connection. When I stops the application, the connection in the sql server end was also closed.
But if you don't close the application and fail to close connections, you can see where eventually you'll exhaust the pool.
It seems to me this is a sql server issue rather than a jdbc driver issue. I need way to prove this.
Like I suggested, it's easy to swap in the jTDS driver and try it again. What do you have to lose?
Or call Microsoft support and ask them. Or maybe JTurbo. You're paying for it - might as well use the support.
%

Oracle 11G + Database Connection taking too much Time

Hi ,
I am using Oracle 11G . When i try to connect to oracle database
sqlplus system/impetus@database
it takes too much time ( more than 1 min )
I am not getting why this is happening ?
Before some day it was working fine but suddenly the problem occurred.. Is this issue is related to log files generated by oracle or memory related issue ( sga and pga)..
Any Help please ?

Darn! /tmp/capture.log does not contain what I expected it to contain.
So a different approach is needed.
issue the following command:
script /tmp/capture.log
#now you are in a new shell & issue the next 3 lines
strace sqlplus system/impetus@database
exit
Ctrl-d (Control D)
now issue the following commands.
ls -l /tmp/capture.log
wc -l /tmp/capture.log
Post the results from 2 commands above back here

Database.close not closing database?

I've a singleton holding onto open (read-only) database handles, the environment and catalog DB handles. I'm using a StoredMap.get() to pull specific data items by their keys. Everything works fine, except in my JVM shutdown hook.
The shutdown hook iterates over each of my open database handles and calls db.close() on them. Same goes for catalog DB and the environment.
However, when the shutdown hook code gets to environment.close, it throws a DatabaseException saying - 1 database still open in environment.
I've tried explicitly deallocating the reference to the database handle before calling db.close(). That doesn't help.
Any ideas on what might cause a db.close to execute (no exceptions thrown), but the corresponding environment.close still thinks the database is not yet closed?
I'm wondering if there is a timing aspect here, since the db.close and env.close are called in very rapid succession inside the shutdown hook code.
Thanks

Hi,
Any ideas on what might cause a db.close to execute
(no exceptions thrown), but the corresponding
environment.close still thinks the database is not
yet closed?
I'm wondering if there is a timing aspect here, since
the db.close and env.close are called in very rapid
succession inside the shutdown hook code.Calling them in succession should not be a problem. Is it possible that you've opened a database more than once? You have to close each "handle' you've opened if you open a database multiple times.
Mark

SipSnoop, Lync 2010, Application not authorized, Registration time-out. Timed-out?

Hi,
I
am trying to run the SipSnoop sample application which came with the Lync 2010 Server SDK. Everytime I click on "Connect to Server", the application hangs for a while and then comes back with:
Application not authorized.
Registration Time-out. Timed-Out? [True]Response?[False]
Any ideas what might be going on?
Thanks,
Prem

I'm getting the same error but unable to resolve it.
First I added the MSPL,
New-CsServerApplication -Identity "Service:EdgeServer:servername.com/AppName" -Uri "http://www.companyname.com/OCS/AppName" -Enabled $true -Critical $false
After that I'm trying to start the application and see the following error in the console,
Exception ToString:Microsoft.Rtc.Sip.UnauthorizedException: Application not authorized. ---> System.ApplicationException: Registration Time-out. Timed-Out? [True] Response? [False]
--- End of inner exception stack trace ---
at Microsoft.Rtc.Sip.ServerAgent.Initialize(ApplicationManifest manifest, Boolean scriptOnly)
and in the Event log I see this,
An exception occured that cannot be handled.
Message: Application not authorized.
Exception: Microsoft.Rtc.Sip.UnauthorizedException
I've tried all the following options,
- Tried with both the Local Administrator and also the Domain Administrator.
- Both of them added to all the "RTC.." groups like "RTC Server applications".
- I also added the Domain Administrator to the RTCUniversalServerAdmins and RTCUniversalUserAdmins
- Enabled MSMQ with Active Directory integration on both the Registrar as well as the Edge Server(Note that this managed mspl is a edge server plugin).
- Made sure that the app uri is the same in the .am file and the commands and program
Please help.

MacAir- Wifii "connected" no loading or "time out" errors

I have a MacAir and all of the sudden the Wifii wouldn't connect to the wifii server at school.
Other students were having no issues. It would say "time out" error.
Then it would connect to the guest network and full bars would show but wont load any pages.
My ipad is able to connect normally. Therefore it must be my OS on the MacAir.
If followed other support threads and reset the network but still having the same issue
I really need to get this fixed if possible, any help would be appreciated. Thank you~

Hi aimomo!
I have a few articles here for you that will help you troubleshoot this issue with your Wi-Fi connection:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load
http://support.apple.com/kb/ts2296
Safari 5.0.1 or later: Slow or partial webpage loading, or webpage cannot be found
http://support.apple.com/kb/ts3408
Safari 6 (OS X Mountain Lion): If Safari can’t open a website
http://support.apple.com/kb/PH11883
A few of these articles are for specific circumstances related to loading pages in Safari, but I thought they may be helpful if it seems like your issue is similar to what is described in the articles. Thanks for being a part of the Apple Support Communities!
Regards,
Braden

BPEL not started until time out

Hi,
In my BPEL Process,I have flowN activity, each branch(each flow) has HumanTask activity which sends mail & get response from the assignee.
When I invoke the process, it gets started but not send any mail until the timeout.
If the process timed out and returns exception : com.oracle.bpel.client.delivery.ReceiveTimeOutException, then everything works as expected.
I have set the time out under 2 files transaction-manager.xml & domain.xml.
I'm using SOA 10.1.3.1
And in my orion-ejb-jar.xml also contains some timeout option (default is 160) which I left without change.
Thanks.

Hi Janice
I'm not sure which version of Reports you are running. In case you are running Reports 9i, you may use Java Importer feature to get this done. This is how:
Create a java class that has a static method:
public class Sleeper {
public static void Sleep(long duration)
Thread.sleep(duration);
Compile Sleeper.java file and place the class file in REPORTS_CLASSPATH
In Reports 9i Builder, import the Sleeper class.
In the place where you want to hold, call SLEEPER.SLEEP(1000*60*5);
Regards
Sripathy

Captcha not functioning - possible time-out?

Hi Guys,
We have a lengthy registration form with Captcha module at the end.
We get many customers complaining that the captcha does not work (letters entered are not correct).
I have first hand experience with this issue
The letters entered are correct, yet it will respond with an error that it does not match.
Refreshing the form at this time does not solve the issue.
One has to restart the browser and then it will work.
My feeling is that due to the time it takes to complete the form, a time-out might occur.
Have you had issues similar to this, and do you know what could be done to resolve this?
Thanks

Your right, two long on the form.
What you need to do is either.
1. Review the form and see if it is totally needed to have all the fields, if there is design changes to speed the process of the form to be filled in etc. One example of this is if you got line after line with one field per line. Multiple fields per row etc shortens the length of the form, relating fields better to each other etc. First and Last names can be combined to full name and so on.
2. Use the multi step form process to have stages of forms thus when on the final element with captcha you do not have the issue your experiencing.

JDBC Connections not closed

Hi,
we work on a Jdevelopper intranet application and an Oc4j application server.
recently, we have reached the maximum number of connections to an Oracle DB.
apparently, we have a lot of old connections that are not closed!!
is there any action to do on Oc4j configuration or Jdevelopper application to avoid this problem ??
thank you for help.
Cordialy

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

WRT54GX v.2 Connection to Contivity VPN Times Out

I have a WRT54GX ver.2 that works fine with several wired and wireless computers in my home. When I try to connect my company-provided laptop, either wired to the router or wirelessly, it times out "Unable to connect". When I bypass the router and connect directly to the cable modem it works fine. What do I need to do, change settings, etc.? If you need additional information on my network or ? please tell me how to get what you need.
Thank you,
Dog tired.

Let me know the VPN settings Details .... such as Ip address & security settings ...

Connection to Playstation Network Times Out

I have Westell G90-610015-20 DSL Modem. I have ASUS Wireless Router RT-N12 connected to it.
My PS3 is able to connect (wirelessly) to the wireless network. I can update the firmware, and it is able to download any update for any game. However everytime I tried to login into Playstation Network, it would time out. When I do Internet Connection Test in PS3, the results for "Obtain IP Address" and "Internet Connection" are Succeeded, but for "Playstation Network" failed.
I have read some postings regarding the same issue, but found no solution.
Please advice.
Thank you in advance.
Solved!
Go to Solution.

Ok.
I point to
http://www.dslreports.com/faq/13600
If you have any questions, please ask.
After you get your modem combo into bridge mode and your ASUS RT-N12 is handling the public IP, please report back that fact and I will tell you what to do next.
If you are the original poster (OP) and your issue is solved, please remember to click the "Solution?" button so that others can more easily find it. If anyone has been helpful to you, please show your appreciation by clicking the "Kudos" button.

Database connection not closing on time out

Similar Messages

Maybe you are looking for