JCo conenction error

Hi
I am trying to establish a JCo conenction for a web dynpro application. After establishing the JCo connection, when I test the connection I get the error message given below:
com.sap.mw.jco.JCO$Exception:
(102) RFC_ERROR_COMMUNICATION: Connect to message server host filed Connect_PM TYPE=B MSHOST=xyz Group=gxyz R3NAME=yyy.......
We are using EP 6.0 SP11. Please help.
Thank you
-Mark

Mark,
is this the same error as in JCo conenction error
if not, please post the complete error message.
kr, achim

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JCO.Server Error while trying to execute a RFC program from SAP

Hi,
We are connecting to an external registered server program from SAP via Web Methods.
The external server program is registered with the SAP Gateway. We have created a TCP/IP RFC destination and are able to connect to the destination successfully via SM59.
An RFC function is created in SAP and is called using the syntax CALL FUNCTION "/NGN/BAPI_STRE_SEARCH_PROCESS" DESTINATION 'PRDB2B'. We have also handled the COMM_FALIURE and SYSTEM_FALIURE exceptions in the function call.
We are monitoring the gateway via SMGW and see a connection log to the RFC destination as below
Number - 10
LUname - dev01
TPName - sapgw00
User - KRAORANE
Status - CONNECTED
Symbolic - PRDB2B
Conversation - 86520353
Prot - REG
SAP return code - 0
CPIC rtn code - 0
The external program returns results as expected.
However sometimes the RFC fails and returns the message JCO.Server could not create server function /NGN/BAPI_STRE_SEARCH_PROCESS.
We are not able to figure what exactly is causing this error. Any help will be highly appreciated.
-Kiran

Hi,
Please see the below links..
JCO.Server Error while trying to execute a RFC program from SAP
Re: JCO.Servcer could not find server function
Re: JCO.Server could not find server function 'SET_SLD_DATA'
/people/kathirvel.balakrishnan2/blog/2005/07/26/remote-enable-your-rfchosttoip-to-return-host-ip-to-jco
Re: interfacing SAP with an existing java applications
http://help.sap.com/saphelp_nw04/helpdata/en/47/80f671ee6e4b41b63c0fe46bd6e4f8/content.htm
http://www.sapgenie.com/faq/jco.htm
Regards
Chilla..

JCo Connection Error in PI 7.1

Hi Experts,
In our PI 7.1 we got JCo COnnection Error:
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JCO communication error/ failure

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Ashok -
Did you check these links:
Mapping Error :JCO_COMMUNICATION_FAILURE
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JCO_COMMUNICATION_FAILURE
JCO_COMMUNICATION_FAILURE
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JCO connection error:Couldn't create JCOClientConnection for logical System

Hi All,
We are facing a production outage issue.
We have a Federated Portal Network setup where one of our producer goes down automatically (seems on heavy load).
On this Producer server we have 3 Web Dynpro applications deployed and default trace is full with JCO connection error   saying Could   not create JCOClientConnection for logical System: CSVMR_WD_MODELDATA_DEST.
We had issue with max allowed JCO connections so we changed the below mentioned parameters for JCO connection settings in portal:
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Hi,
As you have already increased the maximum number of connections/pool size but still you are facing this problem. I would suggest you to check the web dynpro application which might not be able to release/disconnect the JCO connection.
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Puneet

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.
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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.
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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
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Hi All,
I have created technical system using customer system IP. After that I have created the JCO
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Message Server :< hostname>
Logon Group :<SPACE>
SAP Router String :< /H/<host IP>/H/S/<message server port number>
User Name :<User name>
Password :<***>
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Hi
Check out these thread
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HI ALL,
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Jco connection error while calling Custom FM in CRM Internet Sales Application

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I am trying to do some customisation in the CRM ISA 4.0 development component.
Have followed the steps given in the Development and Extension Guide and tutorial PDF
Steps done for Custom RFC Call
1.       Create RFCs
2.       Edit file backendobject-config.xml in folder project_root\b2b_z\WEB-INF\xcm\customer\modification:-
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4.       BusinessObject -
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Similar to what is given in the tutorial the getDefaultJCoConnection() is used .
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This is how my custom FM is being called.
Can someone help me with what may be the possible reason for this call failure.
While debugging and checking it shows null pointer exception in the JCo connection .
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Hi Hamendra,
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In the nwa log shows
where BackendBusinessObjectBaseSAP is the standard Java Class in the ISA
Error at
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Chinju

JCO Proxy Error while connecting xMII into SAP R/3 Server

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When we try connect out SAP xMII server to the SAP R/3 Server using JCo (JCO Interface), we are getting an error
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Hi Biju,
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JCO Connection error in webdynpro

Hi
I have Ep 7.0, ECC 6.0 (NW2004s)
I am trying to establish JCo connection but we are getting the
following error
"com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect
to message server host failed Connect_PM TYPE=B MSHOST=*****
GROUP=SPACE R3NAME=HEI MSSERV=sapmsHEI PCS=1 ERROR
service 'sapmsHEI' unknown TIME Fri May 30 16:19:20 2008
RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -
3 MODULE ninti.c LINE 530 DETAIL NiPGetServByName2:
service 'sapmsHEI' not found SYSTEM CALL getservbyname_r COUNTER 2"
Already i have created TechnicalSystems in the Portal and
I have entered the sevice file in the location of c:\WINDOWS\system32\drivers\etc as "sapms<SID> 3600/tcp" in EnterprisePortal Server.
after that we have restarted the server
Still i am getting same error.
Could you please help us.
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Srinivas

Hi,
First You Configure SLD Correctly.If You Have ECC And BW.You Maintaing Two WEBAS ABAP Systems.
You Create WEB AS ABAP System In SLD And Maintain Connection Properties Of ECC.And
Similarly For BW Also.
The Given Below Links To Help You SLD Cofiguration For J2EE
http://www.*********************/solution_manager/solution_manager_sld.html
SLD Configuration
3.If You Want To Create JCO Destinations.You Go To Login Portal
Content Administration->Webdynpro->Create JCO Destinatiion
A.General Data -> Specify Model Name,Client And JCO Pool Configuration
B.Specify J2EEE Cluster
C.Destination type
Data Type-> Application DataModel,Dictionary MetaDataMetadata
Destination Type->Load Balancing Or Single Server
D.Specify Either Application Server Or Message Server
E.SecurityUsername,password,confirm password,language
F.SummaryWhole Information
Similarly Metadata Created Follow Same Steps As Above
After Creating JCO Destinations, Go For Maintain JCO Destination And test The JCO Destinations Works Fine Or Not you Con Test.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-technology/webdynpro/wd%20java/portal%20integration/how%20to%20use%20the%20web%20dynpro%20content%20administrator.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01ce8a
http://help.sap.com/saphelp_nw04/helpdata/en/77/931440a1c32402e10000000a1550b0/frameset.htm
It's Useful Rewards Points
Bye
Thanks
SubbaRao

JCO RFC error

Hi Gurus,
I have created two JCO Destinitation for my RFC, when i am trying to ping the connection it says "ping successful" but when i test i am getting the following error.
com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: The initial password has expired; request a new one
Can anyone please help me on this , this was not coming in my pervious system for which i have created the conection.
Is someting wrong on the ABAP system ?
points will be rewarded for quick solutions.
Rakesh

Hello Rakesh,
Change the user type of the communication user that UME uses in Transaction SU01 to "System" (B) in the ABAP end.
FYI
Due to an error in the installation program (SAPInst) for NetWeaver 2004 and due to an incorrect documentation, the communication user used by the UME has the type "Communication" (C).This type is incorrect because it is subject to the mandatory password change and the initial password ageing just like type "Dialog" (A) (see Note 622464).
The following profile parameters affect the system's response:
o rfc/reject_expired_passwd
o login/password_max_reset_valid (ABAP 6.20 / 6.40) or
login/password_max_idle_initial (ABAP 7.00) and
login/password_max_idle_productive (ABAP 7.00)
In delivery status, these profile parameters are set in such a way that the RFC logon is not affected.
This information is at SAP note 959242.
Thanks
Pankaj
PS:- /thread/727533 [original link is broken]
Same post .

JCO RESOURECE ERROR

JCO_ERROR_RESOURCE: Trying to access row values in a table which does not have any rows yet
what i did is to get the result from the arraylist
returnAckList.size() return 2
and after that i set the row and pass back the result to R3 with Table parameters
i hit the error above
ANY IDEA...
ArrayList returnAckList=sendMail.sendAuthenticate(bean,beanList2,configList,Conte);
if(returnAckList.size()>0){
int k=0;
for(Iterator it=returnAckList.iterator();it.hasNext();){
OutMailAckBean ack=(OutMailAckBean)it.next();
System.err.println("k" +k);
result.setRow(k);
result.getField("MAILID").setValue(ack.getEmailId());
result.getField("ARDDR").setValue(ack.getReceipient());
result.getField("STATUS").setValue(ack.getAckDelivery());
result.getField("MADAT").setValue(ack.getDateSend().substring(0,10));
result.getField("MATIM").setValue(ack.getDateSend().substring(11,19));
k++;
System.err.println("Ack Row " +k +":" +" mailid: " +" ARDDR: " +result.getField("ARDDR").getString()
" status: "result.getField("STATUS").getString() +" type: " +result.getField("TTYPE").getString()
" MADAT: "result.getField("MADAT").getString() " MATIM: "result.getField("MATIM").getString());
}else{
System.err.println("AckList is empty!!!!!!!!");
Message was edited by:
        yzme yzme

Yzme,
From the error message, what I can make out is that you are trying to manipulate row elements in a JCo table that doesn't have any rows yet.
Instead of changing the row pointer, try adding rows to the table first and then set the values.
ArrayList returnAckList=sendMail.sendAuthenticate(bean,beanList2,configList,Conte);
if(returnAckList.size()>0){
int k=0;
for(Iterator it=returnAckList.iterator();it.hasNext();){
OutMailAckBean ack=(OutMailAckBean)it.next();
System.err.println("k" +k);
// result.setRow(k);
/* Instead of this line of code add the appendRow statement.
I assume variable result is of type JCo.Table*/
<b>result.appendRow();</b>
result.getField("MAILID").setValue(ack.getEmailId());
result.getField("ARDDR").setValue(ack.getReceipient());
result.getField("STATUS").setValue(ack.getAckDelivery());
result.getField("MADAT").setValue(ack.getDateSend().substring(0,10));
result.getField("MATIM").setValue(ack.getDateSend().substring(11,19));
k++;
System.err.println("Ack Row " +k +":" +" mailid: " +" ARDDR: " +result.getField("ARDDR").getString()
+" status: "+result.getField("STATUS").getString() +" type: " +result.getField("TTYPE").getString()
+" MADAT: "+result.getField("MADAT").getString() +" MATIM: "+result.getField("MATIM").getString());
}else{
System.err.println("AckList is empty!!!!!!!!");
If my understanding is wrong, then please elaborate the problem.
Bala

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

Portal "Maintain JCO Destionations" Error

Dear Gurus,
Java System : NW7.31 EHP1
Backend : ERP6 EHP6
When i try to "maintain" or "create" JCO destionations in Content Administrator i am taking error like this ,
My SLD Test Connection is successfull and SLD is running,
I have configured JCO (SAP_R3_SelfServiceGenerics_MetaData) destination for ESS MSS packages, but when i travel in these packages in portal i am taking error,
500   Internal Server Error
SAP NetWeaver Application Server/Java AS
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:420)
    at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:237)
    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:84)
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:151)
Kindly need your helps
Regards

Hello,
Thee is 2 possible scenarios here.
Either your SLD is actually down or not starting correctly or there is a misconfiguration on the application side.
Therefore lets check these points:
[1] SLD side: Can you please check the target SLD's are up by calling the URL for each of them in a browser:
http://<hostname>:<port>/sld
Can you logon? Does appears as running when you logon?
If there is no working connection to the SLD it is not possible to
maintain any JCo destination at all.
If there are problems connection the SLD you can change the used
connection parameters using the Visual Admin.
[1.1] Please choose the SLD Data Supplier service and select the CIM
Client Generation Settings tab.
[1.2] You can now define the connection parameters. After that you have
to save your settings.
[1.3] You can test also the connection now using the #CIMClient Test#
button.
[1.4] After saving and restarting the Web Dynpro Content Administrator
uses the changed connection parameters
automatically. There is no need to restart the whole SAP J2EE Engine for
that.
[2] WD application side:
Could you please check if the JCO destination is really avaialable on
the Web Dynpro Content Admin?
you can start it directly using a URL like
http://<YourHost>:<YourPort>/webdynpro/dispatcher/tc~wd~toos/ContentAdministrator
Be aware that you need a user with administrator permissions. If not,
you are not allowed to start the Web Dynpro Content Administrator.
Regards,
David

JCo conenction error

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