JCo RFC stop/hang

Hi,
I have a JCo RFC setup in my J2EE Administrator. Lately i found out the service will hang/stop by itself as my program unable to call it and when i test connection in SM59 (TCP/IP) it will say timeout. Once i restart the service then only it can work. I check the dev_jrfc.trc file and i noticed this error message.
RfcGetException rc (7) message: One of the field names in the SELECT clause was not recognized.
<RfcGetException
Would like to know am i checking the correct trace file. Also is this error message related to my program or Netweaver server?
Thanks.

Hi Surendrajain2003,
But it able to run like normal.
Just that suddenly it stop by itself.
Thanks
This is only happen to the RFC that i created for my application usage.
Will it because the RFC is too heavy? It will query my database table/insert/update and return back to R/3
Edited by: Adrian Chan on May 15, 2009 10:31 AM

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Problems with JCO RFC Provider in a cluster J2EE

Hello all,
We've defined a JCO RFC Provider because we need to call an EJB from a SAP R3 program. If I configure it in a J2EE with a unic server all works fine, but when I configure this scenario in a cluster J2EE (a central instance with two servers and a dialoge instance with three servers) it isn't working.
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Thanks in advance...
jc!

Did you create the corresponding RFC connection in ECC transaction sm59 ?
with the same program ID.
both pointing on the same application host.
Regards,
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Hello Everyone
I am setting Up SSO between my EP 7.0 and my ECC 6.0 system. During the phase JCO RFC PRovider i am giving the following values:
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TIME        Tue Mar 01 03:33:30 2011
RELEASE     700
COMPONENT   NI (network interface)
VERSION     38
RC          -10
MODULE      nixxi.cpp
LINE        2823
DETAIL      NiPConnect2
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ERRNO       10061
ERRNO TEXT WSAECONNREFUSED: Connection refused
COUNTER     1
I have configured my SLD as well. Any suggestions. Please Advise.

Hi Ahmed,
Please do check the validity of the certificate.
Please do cross check these steps again.
1.     Transaction u2013 STRUSTSSO2 (Trust Manager for Logon Ticket)
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4.                  Choose File Path.
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6.                 saved in local drive.
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check this thread -
Certificate no longer has signature (use restriction)
Renew certificate via SAP MarketPlace, and install from tcode slicense. If you are working on a trial version, there is a SAP license request application form. Fill the form with the hardware key. you will get the new license via email. Install using slicense. Then try exporting the certificate.
Thanks,
Divya
Edited by: Divya V on Mar 10, 2011 11:25 AM

Error while loading service JCo RFC Provider

When I click on the "JCo RFC Provider" node under services in Visual administrator, I get an error:
"Error while loading service JCo RFC Provider"
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Thanks in advance
Regards
Richard
PS. We're using EP6sp14

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Hi SAP Stars,
I have recently Installed Quality and Production servers with PI 7.1 on windows 2003, Sqlserver 2005, when I'm doing Post Activities(http://host:port/nwa) in which I try to change the client from 001 to 300(newly created) in JCo RFC(4 services) and start the service it is throwing error when I again change it to 001 client and start the service it is getting started, Could anyone help me in solving this issue same issue I facing in PI 7.1 Quality and Production
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Hi Anil,
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Hello all,
We are trying to implement the following scenario:
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                                                                                "pt", // language
                                                                                "10.x.x.x", // application server host name
                                                                                "01"); // system number
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Hi Primini,
couple of stupid-but-necessary questions:
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Let us know the results.
Best regards,
Henrique.

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LCRSAPRFC is missing in Visual Admin (JCo RFC Provider)

H y,
I'm facing a problem while connecting our SolMan via RFC to SLD.
Found documents explainig how to set up connection to SLD.
SAPSLDAPI (was present in Abap and Java - wrong credentials - repaired)
LCRSAPRFC (only present as RFC CONN in ABAP, but missing in Java, Visual Administrator JCo RFC Provider
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Tom

Hi,
Do I have to create the RFC Conn LCRSAPRFC again in Abap/SM59 to get the LCRSAPRFC visible again in Visual Admin?
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Usual Process
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1. Log on to your SAP Exchange Infrastructure central instance host.
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RFC destination:LCRSAPRFC
Connection type: T
Description: <your description>
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Java Stack
SAP J2EE Configuration for the Destinations (Visual Administrator)
1. On your SAP Exchange Infrastructure central instance host, start the SAP J2EE
Engine administration tool.
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a. Enter the parameter for the SAP XI host: Application Server, System Number, Client
and Language.
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c. Select the flag Unicode.
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Testing
After you have maintained an RFC destination in both the ABAP and Java environment,
you can check it as follows:
1. Call transaction SM59 again.
2. Open your RFC destination.
3. Choose Test Connection.
No error should be displayed.
Regards,
Rao.Mallikarjuna
Edited by: Rao Mallikarjuna on May 31, 2008 11:40 AM

Question: Can Jco RFC Provider registers Program Id for BW7.3

Hello, Friends
I encounter the following issue and I wonder whether it is supported by Netweaver product. Please help answer.
My scenario is to create RFC (TCP/IP Connection) in ABAP server with program id registered by Jco RFC Provider (Visual Admin of NW7.02 Java)
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Hi, Ejersbo
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Hi,
Please could you provide a sample java code to establish JCO RFC call to ABAP?
Thanks.

Hi Denis,
Import the model In NWDS for ABAP for RFC.
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[Web Dynpro Model: Backend Access|http://www.sdn.sap.com/irj/sdn/nw-wdjava?rid=/webcontent/uuid/403e6bf5-426e-2910-b0a8-a95548724af9#section10 [original link is broken]]
Also check here /docs/DOC-8661#section10 [original link is broken]
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JCo RFC Provider Service

Hello
This topic may be not relevant to this forum but has anyone used JCo RFC Provider service for maintaining RFC Destinations?
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p.put(Context.SECURITY_CREDENTIALS, "password");
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Cheers,
Siva Maranani.

JCO RFC provider: Server function not found, short dump

Hi all,
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In application-j2ee-engine.xml located in the META-INF directory of my EAR, I've added:
<reference reference-type="hard">
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</reference>
The application deploys without errors, and besides from my RFC connection works as expected. In the JNDI registry view of VisualAdmin I see the corresponding entry: "rfcaccessejb/RFCTEST" is a local reference to my stateless session bean.
On ABAP, I have a tiny little program that calls my function, mainly looking like this:
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Hello Perry song,
You got the short dump bcoz, there is no perform by the name you provided in the program,
for example. consider there are 2 programs.
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REPORT ZPGM1.
*Calling a perform SNAME1 , the code of perform is written in ZPGM2.
perform sname1 IN PROGRAM ZPGM2.
Program 2 :
REPORT ZPGM2.
perform sname1 .
Form SNAME1 .
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endform.                    " SNAME1
(here SNAME1 is found and it works perfectly )
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just type " IF FOUND " when u r calling a perform from other program ( i guess this will solve the problem ).
Hope it might be helpfull,
Regards ,
Aby
Edited by: abhi on Nov 6, 2008 10:14 AM

Notes on JCO,RFC and ARFC?

Hi,
I need information regarding JCO,RFC,ARFC.
wht the main use of this?
Reply ASAP.
Regards
kiran

hi,
JCO
SAP Java Connector (SAP JCo) is a middleware component that enables the development of SAP-compatible components and applications in Java. SAP JCo supports communication with the SAP Server in both directions: inbound calls (Java calls ABAP) and outbound calls (ABAP calls Java).
SAP JCo can be implemented with Desktop applications and with Web server applications.
SAP JCo is used as an integrated component in the following applications:
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● in the Application Server, for connecting the integrated J2EE server with the ABAP environment.
SAP JCo can also be implemented as a standalone component, for example to establish communication with the SAP system for individual online (web) applications.
RFC
Communication between applications of different systems in the SAP environment includes connections between SAP systems as well as between SAP systems and non-SAP systems. Remote Function Call (RFC) is the standard SAP interface for communication between SAP systems. The RFC calls a function to be executed in a remote system.
ARFC
Asynchronous remote function calls (aRFCs) are similar to transactional RFCs, in that the user does not have to wait for their completion before continuing the calling dialog. There are three characteristics, however, that distinguish asynchronous RFCs from transactional RFCs:
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regards,
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Error:No Jco RFc metadata found

Hi Moderator,
Pls don't block this question ,previously also ,I have closed the questionin another forum but you blocked here.
Closed the questionin another forum as I think that this is appropriate forum.
=========================================================
Hi All,
We are using ESS MSS on SAP EP 7.0 SP 15 and using ERP 6.0 EHP 3 .
In Portal while navigating to ESS -> leave_>apply leave we are getting this error
The initial exception that caused the request to fail, was:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: no jcoMetadata found for RFC function 'PT_ARQ_ACCOUNTS_GET_CE'! Please verify, that your model is consistent with the ABAP backend:
Detail information
==============
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: failed to create or init instance of model 'com.sap.xss.hr.lea.model.LeaveRequestAdaptiveModel' in scope APPLICATION_SCOPE with instanceId 'null'
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at com.sap.tc.webdynpro.progmodel.model.api.WDModelFactory.getModelInstance(WDModelFactory.java:102)
==============
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WebDynpro Content
SAP_ESS 603 SP3
SAP_MSS 600 SP14
SAPPCUI_GP 603 SP3
Business Package
BP_ERP5COM 1.31 SP3
BP_ERP5ESS 1.31 SP3
BP_ERP5HRA 1.11 SP7
BP_ERP5MSS 1.31 SP3
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SAP_HR 600 29 SAPKE60029
EA-FINSERV 603 2 SAPK-60302INEAFINSRV
EA-HR 603 3 SAPK-60303INEAHR
EA-APPL 603 2 SAPK-60302INEAAPPL
Pls suggest how to resolve this.Is this related to Version mismatch of support packs.
I have checked the Jco RFC.All are working fine.
Regards
Ajay

Hi Ajay,
I am facing the same issue and am trying to follow the note that you had suggested. The note says to create the dummy RFCs "PT_ARQ_ACCOUNTS_GET_CE", "PT_ARQ_REQLIST_GET_CE" and PT_ARQ_READ_CE_SWITCH, But doesn't say which package I should save the RFC/structures/table types in. I tried saving them in EA-HR, but got the following error. "EA-HR cannot be extended."
Please help.
Regards,
JS.

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