Servlet Session Monitoring via MBeans turns up no MBeans

Hi,
I discovered more about why I'm not seeing any Servlet Session Runtime
MBeans when I enable session monitoring. It looks like each time my
managed server creates a new session, two errors get written to my
WebLogic log:
"####<Sep 22, 2002 6:46:43 PM EDT> <Warning> <Dispatcher>
<chile.iso-ne.com> <adminserver> <ExecuteThread: '7' for queue:
'__weblogic_admin_rmi_queue'> <> <> <000000> <RuntimeException thrown
by rmi server: 'weblogic.rmi.internal.BasicServerRef@10b - jvmid:
'7074298665992588400S:10.145.220.82:[7001,7001,7002,7002,7001,7002,-1]:smsdomain:adminserver',
oid: '267', implementation:
'weblogic.management.internal.AdminMBeanHomeImpl@3c7b65''>
weblogic.management.NoAccessRuntimeException: User guest does not have
access permission on weblogic.admin.mbean.MBeanHome
at weblogic.management.internal.Helper.checkAdminPermission(Helper.java:1637)
and
"####<Sep 22, 2002 6:46:43 PM EDT> <Error> <HTTP Session>
<chile.iso-ne.com> <webuiserver> <ExecuteThread: '0' for queue:
'default'> <> <> <100032> <Error creating servlet session runtime>
weblogic.management.NoAccessRuntimeException: User guest does not have
access permission on weblogic.admin.mbean.MBeanHome
at weblogic.rmi.internal.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:85)
at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:136)
at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35)
at $Proxy7.getMBeanServer(Unknown Source)
at weblogic.management.internal.MBeanHomeImpl.isAdminHome(MBeanHomeImpl.java:93)
at weblogic.management.internal.MBeanHomeImpl.getMBean(MBeanHomeImpl.java:118)
at weblogic.management.internal.MBeanHomeImpl.getRuntimeMBean(MBeanHomeImpl.java:590)
at weblogic.management.internal.MBeanHomeImpl.getRuntimeMBean(MBeanHomeImpl.java:568)
at weblogic.servlet.internal.session.SessionData$1.run(SessionData.java:185)
at weblogic.management.internal.Helper.doLocally(Helper.java:1656)
at weblogic.servlet.internal.session.SessionData.getRuntimeMBean(SessionData.java:179)
at weblogic.servlet.internal.session.SessionData.<init>(SessionData.java:166)
Looks like the managed server is making a request of the admin server
and propagating the "guest" principal instead of "system".
These principal propagation errors from managed-to-admin seem to
happen all over the place with different MBeans, and get patched one
place at a time in various BEA service packs. For instance, there's
another issue with accessing the XML Entity Cache from a managed
server, and I'm sure I've read about others. Isn't there a way to
make sure these errors no longer occur with any MBean requests from
the managed server?
Jim

Add
acl.access.weblogic.admin.mbean.MBeanHome=guest
in the filerealm.properties file.
Jim Doyle wrote:
Hi,
I discovered more about why I'm not seeing any Servlet Session Runtime
MBeans when I enable session monitoring. It looks like each time my
managed server creates a new session, two errors get written to my
WebLogic log:
"####<Sep 22, 2002 6:46:43 PM EDT> <Warning> <Dispatcher>
<chile.iso-ne.com> <adminserver> <ExecuteThread: '7' for queue:
'__weblogic_admin_rmi_queue'> <> <> <000000> <RuntimeException thrown
by rmi server: 'weblogic.rmi.internal.BasicServerRef@10b - jvmid:
'7074298665992588400S:10.145.220.82:[7001,7001,7002,7002,7001,7002,-1]:smsdomain:adminserver',
oid: '267', implementation:
'weblogic.management.internal.AdminMBeanHomeImpl@3c7b65''>
weblogic.management.NoAccessRuntimeException: User guest does not have
access permission on weblogic.admin.mbean.MBeanHome
at weblogic.management.internal.Helper.checkAdminPermission(Helper.java:1637)
and
"####<Sep 22, 2002 6:46:43 PM EDT> <Error> <HTTP Session>
<chile.iso-ne.com> <webuiserver> <ExecuteThread: '0' for queue:
'default'> <> <> <100032> <Error creating servlet session runtime>
weblogic.management.NoAccessRuntimeException: User guest does not have
access permission on weblogic.admin.mbean.MBeanHome
at weblogic.rmi.internal.BasicOutboundRequest.sendReceive(BasicOutboundRequest.java:85)
at weblogic.rmi.internal.BasicRemoteRef.invoke(BasicRemoteRef.java:136)
at weblogic.rmi.internal.ProxyStub.invoke(ProxyStub.java:35)
at $Proxy7.getMBeanServer(Unknown Source)
at weblogic.management.internal.MBeanHomeImpl.isAdminHome(MBeanHomeImpl.java:93)
at weblogic.management.internal.MBeanHomeImpl.getMBean(MBeanHomeImpl.java:118)
at weblogic.management.internal.MBeanHomeImpl.getRuntimeMBean(MBeanHomeImpl.java:590)
at weblogic.management.internal.MBeanHomeImpl.getRuntimeMBean(MBeanHomeImpl.java:568)
at weblogic.servlet.internal.session.SessionData$1.run(SessionData.java:185)
at weblogic.management.internal.Helper.doLocally(Helper.java:1656)
at weblogic.servlet.internal.session.SessionData.getRuntimeMBean(SessionData.java:179)
at weblogic.servlet.internal.session.SessionData.<init>(SessionData.java:166)
Looks like the managed server is making a request of the admin server
and propagating the "guest" principal instead of "system".
These principal propagation errors from managed-to-admin seem to
happen all over the place with different MBeans, and get patched one
place at a time in various BEA service packs. For instance, there's
another issue with accessing the XML Entity Cache from a managed
server, and I'm sure I've read about others. Isn't there a way to
make sure these errors no longer occur with any MBean requests from
the managed server?
Jim--
Rajesh Mirchandani
Developer Relations Engineer
BEA Support

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          [email protected]


I have to talk the relevant developer. I know exactly what's happening. Since
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          back to you this week if not, it will be early next week.
          - Prasad
          Srikanth Meenakshi wrote:
          > Thanks for the reply.
          >
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          >
          > http://jserv.javasoft.com/products/java-server/documentation/webserver1.1/ap
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          > Srikanth
          >
          > "Prasad Peddada" <[email protected]> wrote in message
          > news:[email protected]...
          > > First of all you are using deprecated api method. Those methods will
          > return null
          > > in the near future.
          > >
          > > Srikanth Meenakshi wrote:
          > >
          > > > Hi
          > > >
          > > > I am trying to write a servlet to monitor the sessions in a weblogic
          > server
          > > > at a point in time.
          > > >
          > > > Here is my situation:
          > > >
          > > > 1. We are running a server clustered with three other weblogic server
          > > > instances.
          > > >
          > > > 2. My code looks like this:
          > > >
          > > > HttpSession ses = req.getSession(true);
          > > > HttpSessionContext ctx = ses.getSessionContext();
          > > >
          > > > for(Enumeration e = ctx.getIds(); e.hasMoreElements();)
          > > > {
          > > > String id = (String) e.nextElement();
          > > > HttpSession curSession = ctx.getSession(id);
          > > >
          > > > if(curSession == null)
          > > > {
          > > > System.out.println("AdminSessionServlet: Null
          > session
          > > > continue");
          > > > continue;
          > > > }
          > > > long creationL = curSession.getCreationTime();
          > > > .........
          > > > }
          > > >
          > > > 3. When I run this without clustering, it works great. I get a list of
          > > > sessions, the creation time, last accessed time etc.
          > > >
          > > > 4. When clustered, the curSession (from ctx.getSession(id)) always comes
          > > > back as null.
          > > >
          > > > 5. I did some poking around only to find that the id that I get looks
          > like a
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          > >
          > > You are poking into internal stuff. I suggest you not to do that.
          > >
          > > - Prasad
          > >
          > >
          > > >
          > > > Has anybody run into such a problem? Any idea how I can get it to work?
          > > >
          > > > thanks,
          > > >
          > > > --
          > > >
          > > > Srikanth Meenakshi
          > > > [email protected]
          > >

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Message was edited by: themachead

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