OEM 12c unable ot discover Weblogic 10.0.1.0

Question

I have OEM 12c grid installed and Agent 12c running on the remote host. I have weblogic 10.0.1.0 installed in the remote host. The agent is unable to discover the domain. It is failing with below error...
"Failed to discover WebLogic. Check host,port,credentials,protocol and be sure the server is running and the same farm is not already added. This UI can not be used to discover WebLogic version 7.x to 8.x. Exception: No targets discovered"
I can login to the console appication with the ip:port and credentials.. but failing while trying to discover thru the Grid Control.
I get below error in the OMS log...
2012-06-25T05:52:09.376-04:00] [EMGC_OMS1] [ERROR:32] [] [oracle.sysman.emas.model.discovery.AddWLStep1Model] [tid: Thread-38498] [userId: SYSMAN] [ecid: 0000DUEGUt_ADSqlcKU4V_0005hD0004kK,1:32596] [APP: emgc] [URI: /em/faces/as/discovery/addWeblogicStep1] Disocvery failed[[
java.lang.Exception: No targets discovered.
at oracle.sysman.emInternalSDK.sdkas.general.pojo.model.discovery.FMWDiscoveryBase.discoverTargets(FMWDiscoveryBase.java:588)
at oracle.sysman.emas.model.discovery.AddWLStep2Model.discoverTargets(AddWLStep2Model.java:1101)
at oracle.sysman.emas.model.discovery.AddWLStep1Model.discover(AddWLStep1Model.java:464)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.sysman.emInternalSDK.sdkas.general.pojo.progress.WorkWrapper.run(WorkWrapper.java:113)
at java.lang.Thread.run(Thread.java:662)
I then created a empty doman on the same remote host for the same weblogic version. I was able to attch this one and not the other domain.
I am ruling out OM Grid Server - Agent connectivity issues, since the new empty domain I created can communicate to server.
I tried to check what is different between domains...
The WLD that has the issue is a clustered Domain , and has:
- 9 Managed Servers
- Not SSL enabled
- Many Application deployed
- JDBC connections
- has a custom build authentication provider for Authentication. But i made sure the user id is valid and even can login to the console.
** The new Domain is an empty one - no applications deployed.
Can you please help understand why I am not able to attach the domain?

Answer 1

Hi,
It is the problem in prasing the DTD of config.xml file
It look like this
<?xml version='1.0' encoding='UTF-8'?>
<domain xmlns="http://www.bea.com/ns/weblogic/920/domain" 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/90/security/xacml http://www.bea.com/
ns/weblogic/90/security/xacml.xsd http://www.bea.com/ns/weblogic/90/security http://www.bea.com/ns/weblogic/90/security.xsd http://www.bea.com/ns/weblogic/92
0/domain http://www.bea.com/ns/weblogic/920/domain.xsd http://www.bea.com/ns/weblogic/90/security/wls http://www.bea.com/ns/weblogic/90/security/wls.xsd">
Please change your DTD to this lines and start the server.
Regards
Ravi D