IAS 6.5 requests hanging due to session deadlocks

In our application on IAS 6.5, we are seeing requests hang due to PlatformNASSession.invalidate() getting stuck. At the time that this happens, our cpu utilization shoots to 100%. We're not sure if the cpu usage is the cause, the effect, or unrelated to the session hanging but the two problems seem to surface at the same time. Is there any known problem that causes the sessions to get hosed up?
The only way we're able to fix this problem is to kill -9 the kjs process (only 1 of our 4 breaks at a time) that is using all the cpu. At that point, the kjs is automatically restarted and everything begins to work fine again. However, everything going on inside that kjs is lost and the system is running at a crawl in the meantime.
Here is a stack trace of one of the threads that's getting stuck:
     "Thread-567" prio=5 tid=0x3858f0 nid=0x25f waiting on monitor [0xa9d7e000..0xa9d7fc68]
          at java.lang.Object.wait(Native Method)
          at java.lang.Object.wait(Object.java:420)
          at com.netscape.server.servlet.platformhttp.PlatformNASSession.invalidate(Unknown Source)
          at com.bankofamerica.ui.servlet.action.authentication.LogoffAction.perform(LogoffAction.java:42)
          at org.apache.struts.action.ActionServlet.processActionPerform(ActionServlet.java:1785)
          at com.bankofamerica.ui.servlet.BOAActionServlet.processActionPerform(BOAActionServlet.java:68)
          at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1584)
          at com.bankofamerica.ui.servlet.BOAActionServlet.process(BOAActionServlet.java:41)
          at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:491)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
          at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
          at com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown Source)
          at com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unknown Source)
          at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
          at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
          at com.kivasoft.thread.ThreadBasic.run(Native Method)
          at java.lang.Thread.run(Thread.java:484)
Here is the ias-web.xml that is seeing the issues:
     <session-info>
          <impl>distributed</impl>
          <timeout>240</timeout>
          <timeout-type>last-access</timeout-type>
          <secure>false</secure>
          <domain/>
          <path/>
          <scope/>
     </session-info>

Hi! have you resolved this issue? Right now we are also experiencing the same problem.
We're using IAS6.5 SP1, but to no avail when the incoming requests hangs, IAS doesnt generate core dump. As basis for our investigation, we just rely on the IAS Logs, but we couldnt find any abnormalities recorded on the logs that could help us resolve the problem.
I appreciate any help from you.
Best Regards,
Rachele

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Content of D:\oracleIASUAT\dcm\logs\emd_logs\log.xml
<MESSAGE>
<HEADER>
<TSTZ_ORIGINATING>2009-10-15T18:05:07.844+04:00</TSTZ_ORIGINATING>
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     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.laf.base.xhtml.XhtmlLafRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.laf.base.xhtml.BodyRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderNamedChild(Unknown Source)
     at oracle.cabo.ui.laf.base.SwitcherRenderer._renderCase(Unknown Source)
     at oracle.cabo.ui.laf.base.SwitcherRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.laf.base.DataScopeRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.laf.base.xhtml.BodyRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderIndexedChild(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.renderContent(Unknown Source)
     at oracle.cabo.ui.BaseRenderer.render(Unknown Source)
     at oracle.cabo.ui.laf.base.xhtml.DocumentRenderer.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.ui.BaseUINode.render(Unknown Source)
     at oracle.cabo.servlet.ui.UINodePageRenderer.renderPage(Unknown Source)
     at oracle.cabo.servlet.AbstractPageBroker.renderPage(Unknown Source)
     at oracle.cabo.servlet.PageBrokerHandler.handleRequest(Unknown Source)
     at oracle.cabo.servlet.UIXServlet.doGet(Unknown Source)
     at oracle.sysman.emSDK.svlt.EMServlet.doGet(EMServlet.java:347)
     at oracle.sysman.eml.app.Console.doGet(Console.java:271)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:837)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:830)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:285)
     at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:126)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192)
     at java.lang.Thread.run(Thread.java:534)
]]></SUPPL_DETAIL>
</PAYLOAD>
</MESSAGE>

Each request gets a new session problem

I have a standalone oc4j and I have deployed an application that uses Dynamic JDBC Credentials as described in ½How To Support Dynamic JDBC Credentials½. The application works fine when oc4j runs on every computer except one (the one it should be on). Every time an action is supposed to execute (after the user has logged in) the method createSessionCookie in MySessionCookieFactory gets executed. Although it is the same user and it should be the same session. My guess is that a new application module or a new session is started for some reason. What could the reason be?

Hi,
What version of JDeveloper are you using? If you have used 10g to develop an ADF/Struts application then you will need to reference the updated dynamic JDBC credentials HOWTO for this type of application.
Please note that the new version of the HOWTO only applies to ADF applications developed in 10g -- the older version will still work for 9.x applications that have been migrated to 10g.
The issue with the 9.x version is that it does not get in front of the ADFm/BC4J bootstrap that is now being performed by an ADF servlet filter.
The new version is expected on OTN in the next week or so.
I do not know why a new session is required for each request. Have you disabled session tracking for this servlet container?
Hope this helps,
JR

OAS continues to fulfill requests that use expired sessions (bug???)

When I make a request against one of our OAS servers after I know my session has expired, the server responds with an HTTP response that includes a header to clear out my SSO login cookie (I think that's what it's referred to as), but it still fulfills the request as normal.
Utilizing Apache JMeter, I was able to determine the details of such a transaction.
----------the request----------
GET https://our_oas_server:443/some_resource
Cookie Data:
OHS-our_oas_server-443=(a long hexadecimal string)
----------the response----------
HTTP/1.1 200 OK
Date: Tue, 19 Feb 2008 16:54:08 GMT
Server: Oracle-Application-Server-10g/10.1.2.0.0 Oracle-HTTP-Server
Set-Cookie: OHS-our_oas_server-443=; expires=Thu, 01 Jan 1970 12:00:00 GMT; path=/
Cache-Control: max-age=0
Expires: Tue, 19 Feb 2008 16:54:08 GMT
Cache-Control: private
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Content-Type: text/html
(the HTML)
If I allow the cookie to be removed, a subsequent request is responded to with a redirect to our Oracle SSO server.
Has anyone else experienced this? Can anyone else confirm it? Can anyone shed some light on it? This behavior appears to be a security issue as it means someone can continue to interact with the server as an authenticated user without the need to re-authenticate, even after the server has been restarted.
Gregg

Please retest with the latest patchset applied. I know some issues in this area have been fixed in the past years in the AS patchsets.
If the issue still occurs after applying the latest patchset, please ask again, then please use the Identity Management forum as it may then be config related.

IAS 6.5 requests hanging due to session deadlocks

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