What is jco destination

hi all,
what is a JCo destination, what is its function exactly?
what is Model data and MetaData which are given while creating a Model in WebDynPro i.e importing a function module?
any links for understanding adaptive RFC model will be helpful.
Regards,
Sudheer.

Hi ,
Chk thes links,
Wat is Jco,
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01ce8a
JCO Config
http://help.sap.com/saphelp_nw70/helpdata/en/3a/3b1b40fcdd8f5ce10000000a155106/content.htm -->JCO
Configuring JCO Destinations(Full PDF)
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3103eb90-0201-0010-71af-be6f4a6f61d1
Config. Jco --ESS
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/21eb036a-0a01-0010-25a3-b2224432640a
Forum Discussion Abt Jco
Re: JCO - Gray status
For models and adaptive RFC,
Web Dynpro Backend Access [original link is broken]
you can get all the inforamtion u want..
Hop this will helpful for u
*GS
Edited by: Sathishkumar GS on Mar 26, 2008 4:18 PM
Edited by: Sathishkumar GS on Mar 26, 2008 4:18 PM

Similar Messages

JCo destination error while executing the webservice model

Hi,
I have explained what I have done so far and whats my issue right now.
My requirement is calling a PI interface (exposed as webservice) from webdynpro for java and setting some parameter value to the PI interface based on which our functional flow will continue.
Done so Far :
1. Created a webdynpro for java application using NWDI.
2. received the WSDL file of the PI interface and imported as "Adaptive webservice model" into webdynpro.
3. used the model and set the parameters to PI interface and executed the model.
4. I have created JCO destinations in the source system (where the application runs) to communicate to the PI system. A special user has been created and assigned in the connection for communicating.
5. Also I have created the "Dynamic Webseviceproxies" in visual admin with the same name as the JCO destinations. It had a property "URL" for which I have tested with providing both the PI server URL (Http://<Hostname>:<Port no>) and also the complete webservice URL (Which calls the WSDL file directly)
when I run the application, I get the following error.
1. Exception on creation of service metadata for WS metadata destination 'WD_RFC_METADATA_DEST' and WS interface '{<Interface Name>'. One possible reason is that the metadata destination 'WD_RFC_METADATA_DEST' has not been properly configured; check configuration.
after some exception the next error follows
2. Invalid Response Code 403 while accessing URL: <The URL which I have provided in the webservice proxy in Visual admin tool> Response Message: Forbidden.
after some lines of exception from PI server the next error follows.
3. Error: You are not authorized to view the requested resource
My Question :
1. Do I miss anything in Configuration?
2. Is my way of approach wrong?
3. Any additional authorization needed?
Kindly provide some ideas and inputs.
Regards,
Mahendran B.

Dear Mahendran
JCO destination will not used for the Web Service Model. While creating the webservice model, you need to use the logical destination which you have created in the Visual Admin.
Please refer to the Secured WebServices II and verify currently used webservice logical destination How To Reimport Web Service Models in Web Dynpro for Java
You can also refer to
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/900bbf94-a7a8-2910-e298-a651b4706c1e?QuickLink=index&overridelayout=true
Hope it will helps
Best Regards
Arun Jaiswal

Creation of JCO Destinations for web dynpro

Hi all,
I read quite a lot of post concerning the subject but unfortunately I did not found a solution to my problem.
My goal is to create JCO Destinations to make my web dynpro to connect to an R3 system.
In order to realise this I followed these steps :
- Launch visual admin and set http settings, rfc settings, and cim client settings. I click on CIM client test and the result is a success so I assume this part is correct.
- In R3, I execute transaction smgw, go to remote gateway to get the gateway settings. I execute RZ70 and filled the parameters just checked. Then I activate and launch the data collect. I have no error message and everythings seemed to work fine.
- In the sld (<host>:<port>/sld) I configured my server settings, the I go to data bridge, set update local sld to true and fill RFC gateway info with the same values as in my R3 system. Then I restarted the sld.
- Finally I went to Web Dynpro content administrator to create my destinations and there I failed. After entering all settings (the message server appears in my technical landscape in SLD), when I click on finish I've got the following exception :
[code]
Failed to create new JCO client connection WD_FLIGHTLIST_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:140) at
com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection
(SystemLandscapeFactory.java:286) 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:252) 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:100) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:299) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:641) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:249) 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:385) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:263) at
com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:340) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:318) at
com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:824) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:239) at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92) at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:147) at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37) at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71) 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:94) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:162) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for WD_FLIGHTLIST_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:247) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:221) 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:138) ... 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[/code]
I tried to create a generic destination (no for the web dynpro tutorial) and failed again.
I do not undestand what I did wrong.
Does someone have an idea ?
Thanks for reading this !
Sylvain
Message was edited by: Sylvain

This thread helped me too because before reading it I didn't thought that I had to create a logon group "PUBLIC".
Anyway I succed in creating 'WD_FLIGHTLIST_MODELDATA_DEST' and the test is ok. The problem was that in sld / technical system / web as abap, my Central Application Server host was wrong. It is not possible to change it so I just add a secondary server with the right host and select this one when creating the destination.
The only pb remaining is now 'WD_FLIGHTLIST_RFC_METADATA_DEST'. I think the pb is my message server such this is the only difference between the two destinations
Thanks for your help
Message was edited by: Sylvain

Problem in connecting JCO destination in web dynpro

HI all,
I was installed sneak preview of Net weaver 6.4,
I want to do some web dynpro (java) programs which connect to back end systems.(R/3 system).
The R/3 system which I want to connect is at remote place, i have connectivity to that R/3 system using VPN connectivity. With this I am not having any problem. Since I am able to connect using User name and password, and able to do some transactions like RZ70, etc.
I developed an application which calls COMPANY_CODE_GET_LIST (BAPI function).
for the above requirement what I did was
(1)I created SLD setting.
(a)Web as Java (I am not having any problem to
Create this.
(b) Web as ABAP.
When i am trying to create
This, there are some steps like i need to go to SAP log in and I need to run the transaction RZ70. For this i need to create an enter in visual administrator>JCO RFC Provider>runtime-->Bundles i need to create an entry for RFC destination as well as Repository.
under RFC destination there are some fields which i need to enter those are (a)Program ID as mySLD (b) Gateway Host as 10.10.10.125 (c)Gateway service as sapgw00 (d)Number of processes as 1
Under Repository (a) Application server host 10.10.10.125 (b)system number as 00 (c)Client number as 100 (d)Language as en (e)user as ABCD (f)password as 1234
I haven't choused the check boxes Local bundle and Unicode and pressed the set button. So like this i created the RFC destinations. under the properties tab there is a property called RFC_DEFAULT_DESTINATION by default it was false so i made it as true. .
I also went to SLD Data Supplier,under Runtime tab , HTTP Settings , I mentioned
(a)Host: pava-vis75
(b) Port: 50000
(c) user: administrator
(d) password: abcd1234
RFC Settings, I mentioned as
(a)Gateway Host: 10.10.10.125 (which is SAP R/3 system)
(b)Gateway Service/Host: sapgw00
CIM Client Generation settings, as
(a)Host: pava-vis75
(b)Port (http/https):50000
(c) user: administrator
(d) Password : abcd1234
I tested the CIMClient Test by click the the button. I got the successful message.
Then I came back to HTTP settings and clicked the button with tilted arrow mark [This triggers data transfer to system landscape directory], for this also I got a successfully message.[data transferred successfully]
Next I been to SAPLOGON and went to RFC Destinations by using sm59 transaction. There under TCP/IP connections i been to SLD_NUC , opened this by double clicking that and under Technical settings for Program ID I had given the ID which I created at visual administrator [JCO RFC Provider] which is mySLD , under gateway options for Gateway Host as 10.10.10.125and Gateway service as sapgw00 then i tested the connection, it was also successfully.
Then I opened the SLDAPICUST and i created a new entry for maintaining the SLD Access Data by giving some couple of entries as
(a)Alias: vissldtest
(b)Host Name: pava-vis75
(c)Port: 50000
(d) user: administrator
(e) password: abcd1234
Then saved it.
Next I created sapmsUV0 3600/tcp entry at
WINDOWS\system32\drivers\etc\services file, and also there are some required entries which are already existing those are sapgw00 3300/tcp to sapgw99 3399/tcp , another entry starts from sapdp00s 4700/tcp to sapdp99s 4799/tcp , next entry starts from sapgw00s 4800/tcp to sapgw99s 4899/tcp and sapmsJ2E 3601/tcp .
I restarted the system, as well as server.
Now my problem is when I was trying to create JCO destination at web dynpro content administrator. For that I navigated as create JCO Destination Deployed Contentlocal-local/CompanyCodeGetList-Applications CompanyCodeGetList
I Choosed the JCO Connections tab- there are 2 entries those are
(1) COMPANY_CODE_MODEL
(2) COMPANY_CODE_RFC_METADATA
So I started creating connection for COMPANY_CODE_RFC_METADATA.
First one is
General data Name : COMPANY_CODE_RFC_METADATA
Client : 100
I didnt changed any default JCo pool configuration.
J2EE Cluster
There is a check box called Use Local J2EE engine J2E on pava-vis75 so I choosed that.
Connection Type
Dictionary Meta Data and application Data
I choosed the first one.
Then
Msg. Server Connection
Security
After these, I tried to test the connection by clicking the Test Connection.
It is saying the error as
First time
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=v011 GROUP=DEFAULT R3NAME=UV0 MSSERV=sapmsUV0 PCS=1 ERROR service 'sapmsUVO' unknown TIME Fri Jul 01 07:20:41 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 COUNTER 1
second time
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=v011 GROUP=DEFAULT R3NAME=UV0 MSSERV=sapmsUV0 PCS=1 ERROR service '?' unknown TIME Fri Jul 01 07:20:41 2006 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -3 COUNTER 1
Can any body please help me to solve this problem.
From past 1 week on wards I have been trying to resolve this. But in vain.

It does not necessarily mean that you have to change that parameter. I read that blog as I had a similar problem, and after reading it and understanding the reasons and possible causes for the error, I found that my particular problem was that I was using "PUBLIC" as the logon group in my JCO destinations, but such a group does NOT exist at my backend. I went to transaction SMLG, had a look at Logon Groups, noted that there were none other than SPACE, figured out that I had to include that information in SLD (Web AS ABAP tech. system --> Message Server --> Logon Groups), put it there. Voilá. It works.
Edit: That SPACE logon group is the one I had to use at JCO destinations. Sorry I forgot to mention that one...
Regards,
Eduardo.
Message was edited by: Jesus Cil

Failed JCO destination name 'WD_RFC_METADATA_DEST'    and MODEL DATA

Hi Friends
I am created "WD_RFC_METADATA_DEST". this meta data.When i am created this metadata i was called message server as technical system of CRM server.
means i am created metadata for CRM System
Once metadata had complted then i was cheing click on "Text"
Here it display this error message
Model Data test
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=ecc15 GROUP=PUBLIC R3NAME=E15 MSSERV=sapmsE15 PCS=1 ERROR       Group PUBLIC not found TIME        Fri Feb 19 01:12:26 2010 RELEASE     700 COMPONENT   LG VERSION     5 RC          -6 MODULE      lgxx.c LINE        4299 DETAIL      LgIGroupX COUNTER     1
Meta data test
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=ecc15 GROUP=PUBLIC R3NAME=E15 MSSERV=sapmsE15 PCS=1 ERROR       Group PUBLIC not found TIME        Fri Feb 19 01:13:19 2010 RELEASE     700 COMPONENT   LG VERSION     5 RC          -6 MODULE      lgxx.c LINE        4299 DETAIL      LgIGroupX COUNTER     1
What is problem. i m not getting can u tell me how slove this problem.
Regards
Vijay Kalluri

Hi Vijay,
You need check following thing to resolve this issue.
1. Check the your host file entries for CRM System (Start>Run>enter 'drivers'>etc>hosts)
2. Check SLD test is successfull or not.
3. As per your error message group PUBLIC not found. Check in the CRM system (T-code : SMLG) whether PUBLIC group is available or not.
Then check JCO destination parameter again and test it.
Hope this will helps you.
Thanks
Arun

BI Post Installation /JCO Destinations

Hi all,
I am having some troubles getting the Netweaver BI functionalities to start running.
We have just upgraded our BW System to Netweaver 2004s and installed an add-on Java Stack.
Both the ABAP Stack and the Java Stack have the most current patch level.
I followed the SLD post installation Guide and I think I did everything as described, including the prerequisites described in the SAP Notes 983156 and 917950.
I do want to add that I am a functional consultant with quite a lot of experience in BW and BPS, but very little knowledge in Basis technology. Our Basis collegues know only little about Java, so we are trying to work it out together.
I imported the content though the SLD and created our ABAP System as a technical system in SLD.
I then tried to use the post-BI installation wizard. The following steps 1-9 are executed without problems:
1.     Create RFC Destinations in ABAP
2.     Update Table RSPOR_T_PORTAL
3.     Create RFC Destinations in Java
4.     Create System Landscape Folder
5.     Create BW System
6.     Set System Alias
7.     Add ACL
8.     Set Master System
9.     Download Engine Certificate
I get following error message when trying to install step 10:
Import ABAP Certificate to Engine Import not successful Element 'SAPConfigLib.C40.Unclassified.uploadAbapCertificate':!BrokerImport.import_of_element_failed!!BrokerImport.Fehler!com.sap.tc.lm.ctc.cul.cpi.exceptions.CPIBaseException: <Localization failed: ResourceBundle='com.sap.tc.lm.ctc.cul.cpi.CPIResourceBundle', ID='com.sap.tc.lm.ctc.cul.cpi.BaseException_BASE_EXCEPTION', Arguments: []> : Can't find resource for bundle java.util.PropertyResourceBundle, key com.sap.tc.lm.ctc.cul.cpi.BaseException_BASE_EXCEPTION:com.sap.tc.lm.ctc.provider.javaServiceProvider.JavaServiceWriter.writeElement!BrokerImport.LINE!157-:com.sap.tc.lm.ctc.cul.broker.BrokerImport.importElement.86
-:com.sap.tc.lm.ctc.cul.broker.BrokerImport.importElement.128
-:com.sap.tc.lm.ctc.cul.broker.BrokerImport.importElement.128
-:com.sap.tc.lm.ctc.cul.serviceimpl.importservice.CULConfigurationImport.importConfiguration.96
-:com.sap.tc.lm.ctc.ccl.templateinstall er.StepExecuter.run.41
Element 'SAPConfigLib.C40.Unclassified.uploadAbapCertificate':Error during executing Java Reflection:Remote call errored
I also noticed that I cannot maintain the JCO destinations both in the web dynpro content administrator and in the transaction SPRO.
In the web dynpro content administrator i see the buttons, but they are greyed out, in SPOR the "execute" button is missing.
From what I read, I get a feeling that the symptoms might be connected, but I ran out of ideas what the problem could be.
Does anybody have an idea?
I would be very grateful if somebody could help.
Regards,
Omar

Hi
I am trying to install BI7.0 and as a part of it I was successful in installation part but when i am trying to check the prerequisite for the notes 983156, I was stuck at the point of bringing the system BI7.0 in to the sld, from the note I can infer that to bring the system in to sld we need to use rz70 and give the gateway details over there (host ,service) when I try to continue with the default values i was not successful to bring the system in to land scape can some one guide me for the steps to bring this system in to land scape.
Any documents of ur previous installation would be appreciated.
Regards
Manikanth

Using X509 certificates to create a client in a JCo destination / pool

Hi,
Our administrators have set up JCo destinations for us developers to use in connecting to the SAP R/3 back-end. We need to use X509 certificates instead of username/password to create a connection. How is this done? The JCo API doesn't seem to list any class/method combination that is suitable.
JCO.createClient allows me to pass an X509 certificate, but it doesn't allow me to specify what JCO.Pool (i.e., JCo destination) to use.
JCO.addClientPool seems to allow both, but I don't think I want to really "add" a pool-- don't I just want to "use" a pre-existing pool, i.e., one of the JCo destinations our administrator has set up?
Do I need to create a Client using the X509 certificate and somehow add this Client to the JCO.Pool? I thought JCo destinations were meant to be pre-established Client pools waiting for a Client to be plucked out of it and used. Is that wrong? What am I missing?
Thanks in advance for your responses.

Hi,
I'm note sure whether you can use prepared JCo destinations in this case. However, if it's possible to use single JCo clients you instantiate when you need them, you have different options depending on whether you have an Enterprise Portal installed on top of your J2EE Engine or not.
--> Without Portal
Retrieve the user's current certificate from UME using:
[code]com.sap.security.api.IUser currentUser = ...;
java.security.cert.X509Certificate[] certificates = currentUser.getUserAccounts()[0].getCertificates();
byte[] certBytes = certs[0].getEncoded();
String encodedCert = someBase64Method(certBytes);
Properties jcoProperties = new Properties();
// Add your backend properties like hostname and so on...
jcoProperties.setProperty("jco.client.user", "$X509CERT$");
jcoProperties.setProperty("jco.client.passwd", x509Cert);
JCO.Client jcoClient = JCO.createClient(jcoProperties);[/code]
--> With Portal installed
In general: Define your backend system in the Portal's system landscape instead of as JCo destination. Configure it's logonmethod for X.509 certificates. Either use UME's user mapping feature directly via com.sap.security.api.UMFactory.getUserMapping()... to add the certificate properties to the JCO properties, or use some intermediate API, some of which are available in the portal, some of which reside in the J2EE Engine (details if you request them).
Best regards
Heiko

Message Servers not appearing when creating JCO Destination

Hello Experts,
I had created a System Object in the Portal system landscape based on System Template (Template) and choosed SAP system with load balancing (to connect to R/3 server).
Given parameters to Connector, ITS, WAS and User management, when i test the connection test on these settings, All are successful except the connector settings. but when run the transaction code(System Administration -> support-> portal runtime-> SAP Transaction) by selecting this message server, it is executing.
And i want this message server to be selected when creating JCO destination.
This System Object is not showing in the message servers dropdown box selection when creating the JCO destinations.
What may be the issue.
Could anyone help me in solving this.
Thanks in advance
Regards
Sunil

Hi,
Have you checked the Technical systems in the SLD ? When you click on check sld , you appear an SLD url ,,,
Typing the same URL in browser and loging inwith SLD USER .... have you seen all the technical system which you want to appear while creating the JCO's ..
Regards,
Srini

Unable to create the Jco destination

Hi Experts,
I am facing a strange issue, As part of ESS and MSS i have to create some Jco destinations in the Wedynpro content administrator.I am giving the all the necessary information for the Jco creation when i click on Finish, jco is not getting creted.
And the status is in Red color...
Can any one help me what i am missing???

Hi Anil,
Hope you are doing good.
Is the SLD up and running?
If the issue persists:
1.)Delete all the JCO destinations from Content Admin and then from SLD
2.)Restart the complete cluster once and do a SLD data trigger.
3.)Then recreate all the jco destinations again from content admin. (Important note: using the "New JCO Message Server Destination" button in SLD will create an inconsistent state. Please do not use it.)
let me know how this goes.
Thank you!
Kind Regards,
Hemanth
SAP AGS

RFC Adaptive Model,JCO destinations error

HI,
I created the tutorial application to get Flight List using RFC adaptive model.
I created the JCO destinations in web dynpro content administrator after configuring the SLD (after many problems though ).
Our Server is Web AS 6.4 ABAP + JAVA ,but no R/3 modules installed.
WD_FLIGHTLIST_MODELDATA_DEST-type application--single server connection
WD_FLIGHTLIST_RFC_METADATA_DEST-type Dictionary-load balanced
The JCo destinations status shows green.
The test for WD_FLIGHTLIST_MODELDATA_DEST is succesful but the test for WD_FLIGHTLIST_RFC_METADATA_DEST fails with the error:[code]
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=nwserver GROUP=PUBLIC R3NAME=NWS MSSERV=sapmsNWS PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR Group PUBLIC not found TIME Thu Nov 10 18:24:23 2005 RELEASE 640 COMPONENT LG VERSION 5 RC -6 MODULE lgxx.c LINE 3515 DETAIL LgIGroup COUNTER 2 [/code]
The ping fails and if i test it again,i get another error
[code]com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=nwserver GROUP=PUBLIC R3NAME=NWS MSSERV=sapmsNWS PCS=1 ERROR Group PUBLIC not found TIME Thu Nov 10 18:29:13 2005 RELEASE 640 COMPONENT LG VERSION 5 RC -6 MODULE lgxx.c LINE 3515 DETAIL LgIGroup COUNTER 1 [/code]
What is wrong?Any more steps required?
If i try to edit it,the type is still the same-Application with single connection.
How can i change it?Do i need to change it to type Dictionary in the first place? How to proceed.
Please guide.
Regards,
Siddhartha
Message was edited by: Siddhartha Jain
Message was edited by: Siddhartha Jain

hi Siddhartha,
You have to configure PUBLIC group using SMLG transaction
check these links out
http://help.sap.com/saphelp_nw04/helpdata/en/28/1c623c44696069e10000000a11405a/content.htm
hope this helps you
Regards
Rohit

Failed to resolve JCO destination

Dear support,
Recently we have made conection from our portal system to 4.7 system and Now we successfully login to portal.But when we click on ' Employee self service ' button we get below errors:
The initial exception that caused the request to fail, was:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'SAP_R3_SelfServiceGenerics_MetaData' in the SLD. No such JCO destination is defined in the SLD.
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:467)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:233)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:218)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:129)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:149)
    ... 75 more
I have checked SLD is running and is configured properly , i dont know anything about JCO destinations , this error is giving hint as
Accessing the System Landsape Directory (SLD) failed. Depending on the concrete reason (see root cause) check the following:
is the SLD Supplier in the J2EE engine configured correctly? See the SLD documentation for more details about the SLD and about how to configure it.
are all JCO destinations maintained correctly? Use the preinstalled Web Dynpro Content Admin application to check/edit the destination. Use the Ping and Test functions of the Content Admin to
I have gone through Blog
Configuring SLD in Sneak Preview SAP NetWeaver '04 Sneak and all settings looks fine.
Please make note this system has come recently under our maintainence and i am not much aware what exactly previous Administrator performed , But SLD is running fine.
Can somebody help at earliest?
Best Regards,
AjitR

Hi,
Have you defined the JCO destinations in Web Dynpro Content Admin.
If you havent, look at these link and configure the JCO Destinations required for ESS.
http://help.sap.com/erp2005_ehp_01/helpdata/en/8c/cb3042366c0521e10000000a155106/frameset.htm
http://help.sap.com/erp2005_ehp_01/helpdata/en/ca/115e4088dc0272e10000000a155106/frameset.htm
Reward Points if helpful.
Regards,
Abhishek

Jco destinations

hi,
i have a little problem configurating SLD for Web Dynpro.
i run my web dynpro application which uses rfc model wd_rfc_flightlist_metadata_dest,
i'm getting error:
"com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'WD_RFC_FLIGHTLIST_METADATA_DEST' in the SLD. No such JCO destination is defined in the SLD."
As I understand I have to create a new destination... can anybody tell me the exact parameters for it,
destination name, type, url..?
Thank you.
MaryM

Thank you for your answers.
I still hae a littel doubt. I checked and both SLD and JCo are running.
I was able to define JCo destination (ping ok), but testing it gives me an error:
"com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: Nombre o clave de acceso incorrectos (repita la entrada al sistema) "
When defining a destination, what authentication info i must enter?
And when I define the particular SAP system to receive data from?
Thank you!
MaryM

Failed to resolve JCO destination name 'SAP_R3_SelfServiceGenerics_MetaData

Hi,
Got the following error message after login to my portal to access the ESS/MSS page:
The initial exception that caused the request to fail, was:
   com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'SAP_R3_SelfServiceGenerics_MetaData' in the SLD. No such JCO destination is defined in the SLD.
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:476)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:241)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:226)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:129)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:168)
    ... 75 more
Any suggestion what is problem?

Hi Wooi,
Please create JCO destination 'SAP_R3_SelfServiceGenerics_MetaData' and 'SAP_R3_SelfServiceGenerics_MetaDataFIN' for Metadata. First check SLD working fine or not. if the SLD is fine then update SLD data supplier in the visual administrator.
As you metioned the JCO are grayed out. then you need to update host and service file in server location. the do SLD and SLD data supplier test.
Once JCO connection test will successful then your issue will resolved.
Hope it will helps
Regards
Arun Jaiswal

Failed to resolve JCO destination name 'WD_FLIGHTLIST_RFC_METADATA_DEST' i

Dear all,
When i was running a Wec dynpro Application created with The abap Function Modul BAPI_FLIGHT_GETLIST, a error "com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve JCO destination name 'WD_FLIGHTLIST_RFC_METADATA_DEST' in the SLD. No such JCO destination is defined in the SLD. "
happened. Can someone tell me how to sole this error?Thanks .
Rgds,
Sweet.

Hi,
when you are creating Adaptive RFC Model .
in the 2nd step it will ask for 2 things
1.Define the logical system name for model instances
2.Define the logical system name for RFC Metadata.
what ever the names you give here you have to create JCO destinations for that.
Logon to portal.
navigate to content Administartion---->webdynpro
there you have a button "Maintain JCO Destinations".
click on that
In the table you will find WD_FLIGHTLIST_RFC_METADATA_DEST
with status with an icon in red color.
That is indicating that you are JCO destination is not created.
click on create button and follow the below link from page no 25-27
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/355b9c90-0201-0010-d2a8-89fece426526
Thanks & regards,
lokesh

Wrong JCO destination used at Runtime

hi,
I created a Model using the following JCO Destinations
'WD_RFC_METADATA_DEST_HCM'
When I run the application, it gives me folowing error
Failed to resolve JCO destination name 'WD_RFC_METADATA_DEST' in the SLD. No such JCO destination is defined in the SLD
Where is it getting this 'WD_RFC_METADATA_DEST' ? though my JCO destination name is 'WD_RFC_METADATA_DEST_HCM'
Thanks !
seventyros

Hi,
Make sure you deploying to the SAME server where you have configured and maintained the JCo destination.
Also check the server name and port when you are running your WD application and server name and port you are using for WD content administration.
Also What is the version of your NWDS ?
In NWDS 7.1, we would require a totally different way to maintain the JCo destinations comparing to the past.
We now have to maintain the JCo destinations not in the JCo Connection Administrator, but in the NWA under u201CConfiguration Managementu201D - > Security -> Destinations.
This [doc|http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c09527da-39a7-2b10-9f99-c6a007e516a5?overridelayout=true] explains the same...
Regards,
Vijay.

What is jco destination

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