Solved

I am getting this error suddenly.Till now the application was working fine from sterday i am getting this error java.sql.SQLException: Closed Connection

Posted on 2006-10-31
5
323 Views
Last Modified: 2008-02-01
Hi ,

  I was testing my application in the cluster environment and it was working fine for 1 hr and suddenly i got the following error please help me out

2006-10-30 20:25:51,927 ERROR [com.carrier.arm.common.utils.JDBCUtil] Closed Connection
com.carrier.arm.common.exceptions.ARMException: java.sql.SQLException: Closed Connection
      at com.carrier.arm.common.utils.JDBCUtil.getPreparedStatement(JDBCUtil.java:560)
      at com.carrier.arm.common.utils.JDBCUtil.executeQuery(JDBCUtil.java:695)
      at com.carrier.arm.common.utils.JDBCUtil.executeQuery(JDBCUtil.java:668)
      at com.carrier.arm.integration.dataaccess.common.MasterDAO.getUserContext(MasterDAO.java:100)
      at com.carrier.arm.business.common.ejb.MasterSBean.getUserContext(MasterSBean.java:88)
      at com.carrier.arm.business.common.ejb.MasterSBean_k8fmao_EOImpl.getUserContext(MasterSBean_k8fmao_EOImpl.java:260)
      at com.carrier.arm.business.sessionfacade.MasterSFacade.getUserContext(MasterSFacade.java:390)
      at com.carrier.arm.business.sessionfacade.MasterSFacade_xj4o2o_EOImpl.getUserContext(MasterSFacade_xj4o2o_EOImpl.java:424)
      at com.carrier.arm.client.bd.MasterBD.getUserContext(MasterBD.java:315)
      at com.carrier.arm.client.web.actions.LoginAction.armexecute(LoginAction.java:405)
      at com.carrier.arm.client.web.actions.ARMBaseAction.execute(ARMBaseAction.java:100)
      at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
      at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
      at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
      at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
      at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1072)
      at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:465)
      at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
      at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
      at com.carrier.arm.client.web.actions.common.filterAction.doFilter(filterAction.java:63)
      at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
      at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6987)
      at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
      at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
      at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3892)
      at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2766)
      at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
      at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
Caused by: java.sql.SQLException: Closed Connection
      at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
      at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162)
      at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:227)
      at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnection.java:735)
      at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnection.java:652)
      at weblogic.jdbc.common.internal.ConnectionEnv.makeStatement(ConnectionEnv.java:1206)
      at weblogic.jdbc.common.internal.ConnectionEnv.getCachedStatement(ConnectionEnv.java:994)
      at weblogic.jdbc.common.internal.ConnectionEnv.getCachedStatement(ConnectionEnv.java:933)
      at weblogic.jdbc.wrapper.Connection.prepareStatement(Connection.java:359)
      at com.carrier.arm.common.utils.JDBCUtil.getPreparedStatement(JDBCUtil.java:553)
      ... 29 more


Thanks
0
Comment
Question by:gocoool
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
  • 2
5 Comments
 
LVL 24

Accepted Solution

by:
sciuriware earned 250 total points
ID: 17842132
Is your server still up and running?
Then is the server process on the server still running?

If possible you might reboot the server machine.

..... unless it's just a loose cable ......

;JOOP!
0
 
LVL 9

Expert Comment

by:owenli27
ID: 17842411
- Check your database server to see if any problems happened

- Exception thrown from JDBCUtil.java Line 560; There is a line code, something like  conn.prepareStatement()
The DB connection also could be closed by code in some line. So, you can add a couple of line code before it
if (conn == null || conn.isClosed())
    conn = JDBCUtil.getConnection....to reconnect database.
0
 
LVL 9

Assisted Solution

by:owenli27
owenli27 earned 250 total points
ID: 17842620
Also, DB connection could be dropped by timeout
0
 

Author Comment

by:gocoool
ID: 17845796
Thanks a lot guys...

  I restarted the server and it is working fine till now.. I also think tht it may be dropped out by the timeout....But when i restarted the server it worked fine...


Thanks

0
 
LVL 24

Expert Comment

by:sciuriware
ID: 17847762
:)
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Weekend adv creator 3 64
throw exception 21 67
jmss example java 2 33
batch vs regular insert in spring DAO 2 23
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
In this post we will learn how to make Android Gesture Tutorial and give different functionality whenever a user Touch or Scroll android screen.
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:

749 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question