Creating MetaData type JCo Connections

Hi SDN,
I am aware that I should use User Method as User/Password.
But which user should I use?
( In SAP Online Help, it is mentioned that, 'Enter a user in the mySAP ERP system for which you have created for the metadata connection.)
How can I proceed with this one?
Initially I used ticket, there were a lot of connection errors.
Thanks,
Vamshi

If you select User/Password, you must define a user and the corresponding password.
This authentication method is used to define JCo destinations for metadata. The user is predefined for authentication method User/Password and cannot be changed. This user is a technical user who does not need dialog authorization. The name and password assigned to this user must be known in the backend. The authorizations for this user must be set in the backend so that this user can access all DDIC function modules.
Please have look at <a href="http://help.sap.com/saphelp_nw04/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/frameset.htm">this like</a> for more details.

Similar Messages

Error while trying to creat a RFC_METADATA JCo Connection to R/3 system

hi,
i have installed the EP . when i am trying to maintain the JCo connection for RFC_METADATA i am getting an error.
the error states : "com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=esuides GROUP=PUBLIC R3NAME=ESR MSSERV=sapmsESR PCS=1 ERROR Group PUBLIC not found TIME Fri Aug 26 14:46:24 2005 RELEASE 640 COMPONENT LG VERSION 5 RC -6 MODULE lgxx.c LINE 3515 DETAIL LgIGroup COUNTER 1"
cna you please tell me how to resolve this error.
thanks
-uday

Hi Uday,
you have to create a logon Group named PUBLIC with Transaction SMLG in your Backend system. Also don't forget to add the line:
sapmsXYZ <port_number on which XYZ listens>/tcp <For ex: 3600>
to your services file in C:\winNT\system32\drivers\etc (for the Windows 2000 system). XYZ means your Instance Name.
Regards
Gregor

Problem testing Metadata in JCO connections (Flightlist)

Hello:
I have the sneak preview WAS Server Java 6.4 (J2EE) and I have also installed the MINIWAS 6.2. I have successfully setup the SLD and imported the 2 zip files. I can start SAP, and through SM59 test connect to SLD_NUC. I can use RZ70 to 'send' info. I can successfully load, build, archieve the Flightlist demo. I can go to http://localhost:50000/Webdynepro/welcome... and create and test the Model data under JCO connections (not using load balancing). When I test 'metadata_dest' I get the RFC_error_communication Group Public not found. I tried your fix (services file sapmsBSP 3200 from another post), but this makes it not possible to connect to sap since I think SAP listens on port 3200. Any thoughts? Can I spoof my single server system to think its has load balancing?
Thanks
Russ Wagner
Canada

Hi,
If in SMLG menu "goto->load distribution" the field "current logon instance" is empty run report RSRZLLG0_ACTUAL without the flag FRCE_SAV...
After the run the field should be the name of your instance...
check with:
lgtst -H pc -S sapmsnsp -D 1
the output should be:
list of reachable application servers
[pc_NSP_00] [pc] [192.168.1.6] [sapdp00] [3200] [DIA UPD ENQ BTC SPO ICM ]
list of selectable logon groups with favorites
[SPACE] [192.168.1.6] [3200] [700]
bye
sambarza

Cannot create/maintain JCO connection : NullPointerException in SLD

When I want to create a new JCO connection in SLD (via WebDynpro->Content Administrator) , I get an exception :
java.lang.NullPointerException
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
     at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:469)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateJCODestinations(NameDefinition.java:285)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateNavigation(NameDefinition.java:250)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.wdDoInit(NameDefinition.java:157)
Because the following document "[Adaptive RFC Troubleshooting Guide|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d0019b1a-775f-2910-beb8-d81f27d0d8d0]" suggests that the problem could be an incomplete JCO connection definition, I removed all other existing connections (it's a sandbox system), but this action has not solved the problem.
I also get the message "Exception while getting JCo Clients Failed to get list of defined JCO clients for deployable object 'sap.com/spider_search' " when the Content Administrator screen is displayed.
Any idea of what is missing ?
Thanks,
Eric.

Hi Eric,
Check this forum link using this similar problem got resolved.
can not create jco destination 500   Internal Server Error after sp 13
Thanks
Anup

How to monitor (Create /Delete )JCo connections

Hi Gurus,
can anyone give me a clear picture of monitoring the Jco connections ,am i want to create the new Jco connection ,and where do i set the max.no connections ..
reward point guaranted
regards,
S.Rajeshkumar

Hi Rajesh
Read,
http://help.sap.com/Business_Packages/EN/ca/115e4088dc0272e10000000a155106/content.htm
regards
Juan

Error creation of JCO connection: System Already Exist

Hi Experts,
We have created the SLD connection to the ECC6.0 from the Portal 7.0.
Created one JCO connection using that SLD successfully for the Clinet 100.
Now we required to create one more JCO Connection for client200 also. But it is giving the Error that
System Already Exist.
How can we resolve this. When we create the JCO connection for one client, con't we create one more JCO connection for the same system for the differt client or not?
If so How do it?
Regards

I think you can add one more client in the existing connection. well, I am not sure about that even.
nikhil

Error while creating jco connection for metadata?

Hi all,
we are using ep 6 sp 16.
I could create the JCO connection for application data but i am not able to create the jco connection for metadata for the same r3 server .
while creating the the connection
system name and logon group and disable
and when i click finish
it is giving following error
Failed to create new JCO client connection testmetadata: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection. at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:150) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for testmetadata at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:670) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:486) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:252) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:226) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170) Caused by: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:606) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:564) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:486) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:252) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:226) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:659) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at java.security.AccessController.doPrivileged(AccessController.java:180) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Thanking.
Rajendra

Hello Rajendra,
Good to hear from u. Let me try to give a soln for this problem of yours.
I think probably the logon group has not been specified in the backend.If thats the case then do the following:
Connect to the backend server for which you are trying to create the JCO. Run the transaction SMLG. It will show u the existing logon groups. carry out the following steps if the 'PUBLIC' group is not present in the list of logon groups.
Click on the create button. In the pop-up, type the logon as 'PUBLIC'. For the instance, select the F4 help and choose the existing instance number. Click on copy and click save. Try running the transaction /nsmlg and now it should show the logon group 'PUBLIC'.
When you create the JCO connection, it should now show the logon group 'PUBLIC'.
Regards,
Prathamesh.

Error in creating JCo connection with destination type'Load-Balanced Con'

Hi,
I am working on webdynpro application(NW 04s), i need to connect with the backend system(ECC 6.0) using model.I configured my SLD and created technical system successfully.
The technical system got created with an error:
CIM_ERR_ALREADY_EXISTS: Instance already exists: SAP_BCApplicationServer.CreationClassName="SAP_BCApplicationServer",Name="ID1.Number.01.HostName.ahsides"
But the system got created so I proceeded with Jco connection creation:
I need to create 2 Jco connections for this,
First with Data Type 'Application Data' & Destination Type 'Single-Server connection'. Second with Data Type 'Data Dictionary' & Destination type 'Load-balanced Connection'.
The first Jco with 'Single-Server connection' got created successfully and ping and test is also successfull.
The second Jco connection with 'Load-Balanced Connection' got created successfull but it is throwing error while pinging and testing.
Ping Error : Failed to ping JCo destination 'WD_EMPLOYEE_RFC_METADATA_DEST'.
Test Error : com.sap.mw.jco.JCO$Exception: (102) JCO_ERROR_COMMUNICATION: JCO.Client not connected in repository call
Please help me in this.This problem was with 'Load-Balanced Connection' only.

Hi,
Have you taken a look at the file %windir%\system32\drivers\etc\services?
If you haven't, try and find the line sapms<sid>, where sid is de SID of the system you-re trying to reach.
If the line isn't there write it down like this.
sapms<sid> 36<nr>/tcp
That works for me.

Jco connection metadata unable to create

hi,
single server.
j2ee engine and abap installed on same server, both engines registered under SLD.
created model data jco destination but unable to create a metadata jco destination.
error: message server not entered, signon group not entered.
but both are disable while creating meta data destinations.
please solve this prob

You must set up the message server in your SLD environment.
Look at this blog.
/people/sugree.phatanapherom/blog/2005/08/14/configuring-sld-in-sneak-preview-sap-netweaver-04-sneak
/people/thomas.jung/blog/2006/02/08/as-abap-sneak-preview-lessons-logon-groups

Error while obtaining JCO connection when creating JCO connection

Hey,
im having a problem when creating a JCO connection in the Web Dynpro Content Administrator. Creating the Modeldata (Application Data Data type) JCO Worked but when creating the JCO for the RFC Metadata (Dictionary Meta data) there is a problem:
In step 3.2 Msg server connection I cannot specify a system name and logon group, only the message server can be selected with the dropdown box.
After pushing the finish button i get the following stacktrace:
Failed to create new JCO client connection WD_RFC_METADATA_DEST: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection. at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:150) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) at
com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at
com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) at
com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87) at
com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at
com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:649) at
com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at
com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116) at
com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at
com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390) at
com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264) at
com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347) at
com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325) at
com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887) at
com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241) at
com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at
com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148) at
com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33) at
com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41) at
com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37) at
java.security.AccessController.doPrivileged(Native Method) at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95) at
com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for WD_RFC_METADATA_DEST at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:664) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:508) at
com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:248) at
com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:222) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:101) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:148) ... 30 more Caused by: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:393) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:558) ... 35 more
We are running WebAS 640 SP 14 on Unix.
Greetings,
Hannes
Message was edited by: Hannes Defloo

Hi
Please configure your SLD. Your SLD holds the system definition. Define a SAP WebAS abap system and then try to create a Metadata connection using WebDynpro content administrator. Now you will be able to see the msg server defined in the dropdown. Also ensure that you have the message server entry in your services file.
Refer these links for SLD
http://help.sap.com/saphelp_nw04/helpdata/en/c9/dc37520bdf4b48bb8f6d4329f073d5/content.htm
http://help.sap.com/saphelp_nw04/helpdata/en/24/8fa93e08503614e10000000a114084/content.htm
Hope that helps.
regards
Ravi

ModelData and MetaData Mapping in JCo Connection

Hi all
i tried the example given in webdynpro tutorials(Creating a Web Dynpro Application Accessing ABAP Functions)
but i got dout while creating JCo connection
After clicking "Create" button of WD_FLIGHT_MODELDATA_DEST
two radiobuttons of 1)modeldata 2)metadata are comming
if i select modeldata for both WD_FLIGHT_MODELDATA_DEST, WD_FLIGHT_RFC_METADATA_DEST it is giving test sucess but while running it is giving errror as
Error stacktrace:
com.sap.tc.webdynpro.services.exceptions.WDTypeNotFoundException: type extern:com.sap.tc.webdynpro.tutorial.model.types.FlightModel:com.sap.tc.webdynpro.tutorial.model.types.Bapisfldat could not be loaded: com.sap.dictionary.runtime.DdException:
 at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getStructure(DataTypeBroker.java:297)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:753)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:761)
If i select modeldata for WD_FLIGHT_MODELDATA_DEST and metadata for WD_FLIGHT_RFC_METADATA_DEST it is giving testfails
so can u plz solve my problem

Hi,
Create a new JCO(for both Meta Data,Model Data) connection in Content administrator>Webdynpro>Create JCO destination
and Make use of that Jco.Otherwise check the status of your Meta data.ModelData Jco connection in Content administrator>Webdynpro>Maintain Jco destination.
Regards
Nandha

Unable to create Metadata connection for Dictionary Provider

Hi,
I am getting the following error while I try to run a Web Dynpro Application;
The initial exception that caused the request to fail, was:
   com.sap.dictionary.runtime.DdException: 'WD_RFC_METADATA_DEST' not properly defined! Unable to create Metadata connection for Dictionary Provider. Either the logical System Name 'WD_RFC_METADATA_DEST' has not been properly defined in the System Landscape Directory, or you are not using a MsgServerDestination (AppServerDestinations are not permitted for Metadata connections)
    at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:191)
    at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:146)
    at com.sap.dictionary.runtime.DdDictionaryPool.getProvider(DdDictionaryPool.java:97)
    at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:79)
    at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:48)
    ... 37 more
The JCo Connections are tested and pinged, they work fine.
Can anyone please tell what the error could be?

The details exception list is as below:
com.sap.tc.webdynpro.services.exceptions.TypeNotFoundException: type com.dow.dc.model.types.Syuname could not be loaded: com.sap.dictionary.runtime.DdException: 'WD_RFC_METADATA_DEST' not properly defined! Unable to create Metadata connection for Dictionary Provider. Either the logical System Name 'WD_RFC_METADATA_DEST' has not been properly defined in the System Landscape Directory, or you are not using a MsgServerDestination (AppServerDestinations are not permitted for Metadata connections)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:250)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getDataType(DataTypeBroker.java:213)
     at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.init(DataAttributeInfo.java:318)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initUnmappedAttributes(NodeInfo.java:687)
     at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:238)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:671)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:674)
     at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.init(ClientComponent.java:430)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:362)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:754)
     at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:289)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:713)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)
     at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:46)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1039)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
     at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
     at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
     at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
     at java.security.AccessController.doPrivileged(Native Method)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
Caused by: com.sap.dictionary.runtime.DdException: 'WD_RFC_METADATA_DEST' not properly defined! Unable to create Metadata connection for Dictionary Provider. Either the logical System Name 'WD_RFC_METADATA_DEST' has not been properly defined in the System Landscape Directory, or you are not using a MsgServerDestination (AppServerDestinations are not permitted for Metadata connections)
     at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:191)
     at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:146)
     at com.sap.dictionary.runtime.DdDictionaryPool.getProvider(DdDictionaryPool.java:97)
     at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:79)
     at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:48)
     at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:149)
     at com.sap.dictionary.runtime.DdBroker.getSimpleType(DdBroker.java:170)
     at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:242)
     ... 34 more

RFC Error: Unable to create Metadata connection for Dictionary Provider

I configured two RFC ('WD_XXX__MODELDATA_DEST and WD_XXX_RFC_METADATA_DEST). I tested it and it shown green light.
When I run my application that coonnect to CRM using RFC, I got the following errors:
com.sap.tc.webdynpro.services.exceptions.TypeNotFoundException: type com.xxx.types.Syuname could not be loaded: com.sap.dictionary.runtime.DdException: 'WD_ICEBERG_RFC_METADATA_DEST' not properly defined! Unable to create Metadata connection for Dictionary Provider. Either the logical System Name 'WD_XXX_RFC_METADATA_DEST' has not been properly defined in the System Landscape Directory, or you are not using a MsgServerDestination (AppServerDestinations are not permitted for Metadata connections)
 at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:250)
 at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getDataType(DataTypeBroker.java:213)
 at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.init(DataAttributeInfo.java:318)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initUnmappedAttributes(NodeInfo.java:670)
 at com.sap.tc.webdynpro.progmodel.context.DataNodeInfo.doInit(DataNodeInfo.java:233)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:654)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:657)
 at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
 at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
 at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:443)
 at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:381)
 at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:410)
 at com.sap.tc.webdynpro.progmodel.context.MappingInfo.getDataNode(MappingInfo.java:79)
 at com.sap.tc.webdynpro.progmodel.context.MappingInfo.initMapping(MappingInfo.java:121)
 at com.sap.tc.webdynpro.progmodel.context.MappingInfo.init(MappingInfo.java:117)
 at com.sap.tc.webdynpro.progmodel.context.MappedNodeInfo.doInit(MappedNodeInfo.java:207)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:654)
 at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:657)
 at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)
 at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)
 at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:690)
 at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:560)
 at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:155)
 at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.doOpen(WebDynproWindow.java:311)
 at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.open(ApplicationWindow.java:204)
 at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:347)
 at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:668)
 at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:268)
 at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:705)
 at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:659)
 at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:227)
 at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:150)
 at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:56)
 at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:40)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
 at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)
 at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
 at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
 at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
 at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
 at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
 at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
 at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
 at java.security.AccessController.doPrivileged(Native Method)
 at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:100)
 at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)
Caused by: com.sap.dictionary.runtime.DdException: 'WD_XXX_RFC_METADATA_DEST' not properly defined! Unable to create Metadata connection for Dictionary Provider. Either the logical System Name 'WD_XXX_RFC_METADATA_DEST' has not been properly defined in the System Landscape Directory, or you are not using a MsgServerDestination (AppServerDestinations are not permitted for Metadata connections)
 at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:225)
 at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:180)
 at com.sap.dictionary.runtime.DdDictionaryPool.getProvider(DdDictionaryPool.java:87)
 at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:73)
 at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:48)
 at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:149)
 at com.sap.dictionary.runtime.DdBroker.getSimpleType(DdBroker.java:170)
 at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getSimpleType(DataTypeBroker.java:242)
 ... 49 more
I understand that I need to configured the Metadata Dictionary type for the RFC. For this, I need to configure the Message Server properties (for load balancing).
But my Basis guy told me that CRM is an application server, so we only can configured with application server properties. Is this true? (I really doubt it) That is no Message Server connection to CRM system now.
If it is true, how can I create a RFC connection to CRM system?
Thanks for help.
Kent

Hi KC,
Try the following links, they may help you.
http://help.sap.com/saphelp_nw04s/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/content.htm
JCO connection
Using the SAP Enterprise Connector for generating BAPI Proxy Classes
points if useful
Thanks
Suresh

Unable to close metadata jco connection

Hi Experts,
when checking the JCo Connection Pools in Web Dynpro Console, I found that all MetaData JCo are in use and unable to disconnect automatically.
the following is metadata jco destination setting
Maximal Pool Size 1
Maximum Connections 5
Connection Timeout 60
Maximum Wait Time 10
how can i do to close these jco connection?

Hi Sidney,
I dont really understand why you want to remove the Jco connections. If you click on the "Remove" button as posted earlier by someone, it will completely remove your Jco configurations and you have to create them again on your own. SO, dont do that.
If you want to disconnect the Jco connection in webdynpro java, we can do that by using the following piece of code at the end of the connection process.
As far as I know, by default the Jco connections gets disconnected after certain time limit. Because, I never had to disconnect the Jco whenever I used one.
wdContext.currentModelElement().modelObject().modelInstance().disconnectIfAlive()
Regards,
Gopal.

Error while creating a JCO Connection

Hi i am trying to create a JCO Connection from sapj2ee engine
my problem is i am getting an error connection to msg server host failed ..
When i select the Message Server the System Name and Logon Group fields are disabled and cannot be modified and the problem is there is a default system name field already present there which remains there irrespective of whther i change
the msg server...
why is this happening...
regards
Nilesh Taunk.

Hi Nilesh,
exactly follow this link for the set up in Visual Admin..
http://help.sap.com/saphelp_nw04/helpdata/en/ea/cd2e807e0e45bf9da67354f452fc05/content.htm
then refer these forums also...
Re: Metadata problem
i have already explained in step by step setting up of SLD.. in thisforum... refer this also
Re: getting a BAPI from an R/3 system
Regards
Kishor Gopinathan

Creating MetaData type JCo Connections

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