RFC_ERROR_COMMUNICATION

Hi,
I have just done R3 lookup within mapping for one field conversion.I am getting the following error
RuntimeException in Message-Mapping transformation: Exception:[com.sap.mw.jco.JCO$Exception: (102)
RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connect_PM TYPE=A ASHOST=10.16.108.12 SYSNR=06 GWHOST=10.16.108.12 GWSERV=sapgw06 PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR partner '10.16.108.12:sapgw06' not reached
TIME Thu May 10 13:11:39 2007
RELEASE 700
COMPONENT NI (network interface)
VERSION 38
RC -10 MODULE nibuf.cpp LINE 4593
DETAIL NiBufIConnect: connection pending after 60000ms SYSTEM CALL connect ERRNO 245 ERRNO TEXT Operation now in progress COUNTER 1 ] in class com.sap.xi.tf._MM_Sample_ method SiteConversion$[1000, com.sap.aii.mappingtool.tf3.rt.Context@596771]
Can anybody give some clues ..?
Cheers
Tiger Woods

Hi
I has been checked the Service file in the given path, the messageserver port is 33xx.The serivce name & port no is maintained properly.
I am able to login into R3 server without any problem the same connection parameters & server details i have mentioned in UDF.
What should i do in this case, is there any authorizations problems like ..,
Any ideas
Cheers
Tiger Woods

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JCO Problem - (102) RFC_ERROR_COMMUNICATION/Group PUBLIC not found

Hi all,
I installed the u201CSAP NetWeaver 7.01 - ABAP Trial Versionu201D and the u201CEHP1 for SAP NetWeaver Composition Environment 7.1 - Preview Versionu201D on same machine (drive u201CDu201D) and both are working.
My intention is to learn WebDynpro accessing BAPIu2019s created by me (learning ABAP too) using RFCu2019s.
I just did it using JCou2019s but it was all configured.
The problem is that, I create the Dictionary JCo (META_DATA) but when I ping or test always return the errors below:
Ping: Failed to ping JCo destination 'ME_META_DATA'.
Test: com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=localhost GROUP=PUBLIC R3NAME=NSP MSSERV=sapmsNSP PCS=1 ERROR Group PUBLIC not found TIME Wed Jan 07 00:40:57 2009 RELEASE 711 COMPONENT LG VERSION 5 RC -6 MODULE lgxx.c LINE 4574 DETAIL LgIGroupX COUNTER 2
I created the Application JCo (MODEL_DATA) with success and it is working (Ping and Test).
Even using the existing SDN documentation /forums, it seems that something is missing, a parameter; a procedure how to configure a parameter; the sequence of actions or the need of re-start the instance or machine.
I u201Csupposeu201D that the problem may be at Stack ABAP. The group PUBLIC was created (SMLG), the services windows file is ok
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Walmir Catunda

Hi Jason andd Walmir,
Its woking JCO connetion for Sneek Preview ABAP trial version 7.01. Once you setup the logon group, you must execute the program rsrzllg0_actual in the SE38 and next unchecked the FRCE_SAV and clicked on the execute button. then check your jco connection. it is working in the my case.
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RFC_ERROR_COMMUNICATION error while opening the query in BEx

I am able to open the query through rsrt tcode. But If I try opening the query or create a new query from BEx analyser, I get the
below error.Please help.
Error Group
RFC_ERROR_COMMUNICATION
Message
SAP_CMINIT3 : rc=20 > Connect to SAP gateway failed
Connect_PM GWHOST=/H/sapgate1.wdf.sap.corp/S/3299/H/iwdf1081, GWSERV=sapgw00, SYSNR=00
LOCATION    SapRouter on sapgate1
ERROR       sapgate1: route permission denied (172.16.25.105 to iwdf1081,
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RELEASE     46D
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COUNTER     134420

http://www.sdn.sap.com/irj/scn/index;jsessionid=(J2EE3417700)ID0639339950DB00540967214800578770End?rid=/library/uuid/4e515a43-0e01-0010-2da1-9bcc452c280b&overridelayout=true
please go through the PDF doc. it would be more helpful to you.

Error in updating family data and personal id - RFC_ERROR_COMMUNICATION

Hello all,
When i try to update, change, maintain family member data through ESS it is giving me error as "An exception occurred that was not caught., error key: RFC_ERROR_SYSTEM_FAILURE" and also when I try to maintain Personal ID data it is giving me error as "Subtype does not exist for Infotype 0185, error key: RFC_ERROR_COMMUNICATION.
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Request you help
Shrikant Basarkar

Hi,
I am also facing the same problem for personal id .
As per your solution i checked the table V_T588MFPROPS.Below entries i found for infotype 0185
40              P0185     AUTH1
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40              P0185     EXPID
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40              P0185     ICOLD
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40              P0185     IDCOT
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RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed

HI All,
Im getting the following error while trying to call a RFC through JCO.
{0}#1#com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connect_PM TYPE=A ASHOST=R3ip SYSNR=00 GWHOST=R3ip GWSERV=sapgw00 PCS=1
LOCATION    CPIC (TCP/IP) on local host with Unicode
ERROR       hostname 'R3ip' unknown
TIME        Thu May 15 12:13:36 2008
RELEASE     700
COMPONENT   NI (network interface)
VERSION     38
RC          -2
MODULE      niuxi.c
LINE        1529
DETAIL      NiPGetHostByName2: hostname 'R3ip' not found
SYSTEM CALL gethostbyname_r
COUNTER     1
I know it has something to do with the entries in the services and hosts files of the portal server. Please guide me on links from help.sap.com on this.

HI Dagfinn,
Very helpful answer. Thanks.
When you say :
4. Normally, the sap system should be registered in DNS, and you should need any. --- How do I check if my SAP system is registerd in the DNS? Is there some detail explaination on this.
Also,
I have these observations :
1. I checked the services file on my portal server and the entry for "sapgw00 3300/tcp" is maintained there.
2. There is no entry of my SAP ECC box in the hosts file of my portal server.
3. The group PUBLIC is not maintained in SMLG transaction.
4. I am using R3ip only in my code, there is no other place that this "R3ip" is being used.
Following is my code :
import com.sapportals.htmlb.page.*;
import com.sapportals.htmlb.table.DefaultTableViewModel;
import com.sapportals.htmlb.event.*;
import com.sapportals.portal.htmlb.page.*;
import com.sapportals.portal.prt.component.*;
import com.sapportals.portal.prt.resource.IResource;
import com.sapportals.portal.prt.session.*;
import java.math.*;
import java.util.*;
import java.util.Calendar;
import com.sapportals.portal.prt.service.jco.IJCOClientService;
import com.sap.mw.jco.JCO;
import com.sapportals.portal.prt.service.jco.IJCOClientPoolEntry;
import com.sap.mw.jco.IFunctionTemplate;
import com.sap.mw.jco.IRepository;
public class ReadModelData extends PageProcessorComponent {
public DynPage getPage(){
    return new ReadModelDataDynPage();
public static class ReadModelDataDynPage extends JSPDynPage{
     private class4bean class4bean = null;
     protected IPortalComponentRequest request;
     protected IPortalComponentSession session;
     protected IPortalComponentContext context;
     protected IPortalComponentProfile profile;
     protected String userId;
     protected String sapSystem;
     private final static int INITIAL_STATE = 0;
     private final static int OUTPUT_STATE = 1;
     private final static int ERROR_STATE = 2;
     private int state = INITIAL_STATE;
    public void doInitialization(){
          System.out.println("cpCv - Code is rendered: " + Calendar.getInstance().getTime().toString());
          state = INITIAL_STATE;
          DefaultTableViewModel tvm = new DefaultTableViewModel();
          tvm = getData();
          //class4bean = new class4bean();
          class4bean.setModel(tvm);
          session.putValue("class4bean", class4bean);
     public DefaultTableViewModel getData() {
     com.sap.mw.jco.IRepository repository;
     JCO.Pool pool = JCO.getClientPoolManager().getPool("R3");
/*     if (pool == null) {
//       JCO.removeClientPool("R3");
     JCO.addClientPool(
     "R3",
     10,
     "040",
     USER,
     PWD,
     "EN",
     "R3ip",
     "00");
     if (pool == null) {
//            JCO.removeClientPool("R3");
          JCO.addClientPool(
          "R3",
          10,
          "040",
          "uname",
          "pwd",
          "EN",
          "portalserver",
          "40");
     repository = JCO.createRepository("TTL", "R3");
     JCO.Client client = null;
//        Get a function template from the repository
     IFunctionTemplate ftemplate =
     repository.getFunctionTemplate("BAPI_SALESORDER_GETSTATUS");
//        Create a function from the template
     JCO.Function function = ftemplate.getFunction();
     client = JCO.getClient("R3");
     JCO.ParameterList input = function.getImportParameterList();
     input.setValue("0053100700", "SALESDOCUMENT");
     client.execute(function);
     JCO.Table sales_orders =
     function.getTableParameterList().getTable("STATUSINFO");
     Vector row = new Vector();
     Vector tbl = new Vector();
     Vector colNames = new Vector();
//        Loop over all rows
     do {
//        Loop over all columns in the current row
     for (JCO.FieldIterator e = sales_orders.fields();
     e.hasMoreElements();
     JCO.Field field = e.nextField();
     row.add(field.getString());
//       System.out.println(field.getName() + ":\t" + field.getString());
     } //for
     tbl.add(row);
     } while (sales_orders.nextRow());
     sales_orders = null;
     sales_orders =
     function.getTableParameterList().getTable("STATUSINFO");
     sales_orders.nextRow();
     for (JCO.FieldIterator e = sales_orders.fields();
     e.hasMoreElements();
     JCO.Field field = e.nextField();
     colNames.add(field.getName().toString());
     DefaultTableViewModel dtvModel =      new DefaultTableViewModel(tbl, colNames);
     JCO.releaseClient(client);
     return dtvModel;
    public void doProcessAfterInput() throws PageException {
    public void doProcessBeforeOutput() throws PageException {
      class4bean myBean = new class4bean();
      ((IPortalComponentRequest)getRequest()).getServletRequest().setAttribute("myBean", myBean);
      // fill your bean with data here...
      this.setJspName("testJSP_.jsp");

Connect to SAP gateway failed- RFC_ERROR_COMMUNICATION

Hi All,
When i try to open query designer or BeX analyser , the following error pops up ;
Error Group
RFC_ERROR_COMMUNICATION
Message
Connect to SAP gateway failed
Connect_PM GWHOST=10.150.1.07, GWSERV=sapgw00, SYSNR=00
LOCATION    CPIC (TCP/IP) on local host
ERROR       partner 10.150.1.07not reached
TIME        Tue Feb 12 11:38:06 2008
RELEASE     710
COMPONENT   NI (network interface)
VERSION     39
RC          -10
MODULE      nixxi.cpp
LINE        2985
DETAIL      NiPConnect2
SYSTEM CALL connect
ERRNO       10060
ERRNO TEXT WSAETIMEDOUT: Connection timed out
COUNTER     3
What can i do to solve this problem?
Thanks in advance,

Hi,
My problem was solved....
Its problem related to port...
You have to get the port open from ur side as well as the client side...the problem will be solved.....
Regards,

JCO$Exception: (102) RFC_ERROR_COMMUNICATION: CPIC-CALL: CMRCV on convId

Hi all 
 
Somtimes I am getting this kind of error message within Portal... 
 
Full Message Text: 
 
failed JCO execute function; stack trace: com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: CPIC-CALL: CMRCV on convId: 37753022 
 
LOCATION CPIC (TCP/IP) on local host with Unicode 
ERROR connection to partner '10.204.16.xxx:3310' broken 
TIME Sun Nov 28 18:30:17 201 
RELEASE 700 
COMPONENT NI (network interface) 
VERSION 38 
RC -6 
MODULE nixxi.cpp 
LINE 4424 
DETAIL NiIRead 
SYSTEM CALL recv 
ERRNO 10053 
ERRNO TEXT WSAECONNABORTED: Software caused connection abort 
COUNTER 3 
 
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at com.sap.mw.jco.MiddlewareJRfc$Client.execute(MiddlewareJRfc.java:1514) 
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at com.sap.mw.jco.JCO$Client.execute(JCO.java:3417) 
at com.sap.mdi.ddtypes.DDFactory.execute(DDFactory.java:173) 
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at com.sap.dictionary.runtime.mdi.DataProvider.getDataType(DataProvider.java:292) 
at com.sap.dictionary.runtime.DdDictionary.getDataType(DdDictionary.java:94) 
at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:169) 
at com.sap.dictionary.runtime.DdBroker.getSimpleType(DdBroker.java:175) 
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at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.createComponent(ClientComponent.java:940) 
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at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.createComponentInternal(ComponentUsage.java:149) 
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.createComponent(ComponentUsage.java:141) 
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at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:920) 
at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPM.attachComponentToUsage(FPMComponent.java:891) 
at com.sap.pcuigp.xssfpm.wd.FPMComponent$FPMProxy.attachComponentToUsage(FPMComponent.java:1084) 
at com.sap.xss.ser.xssmenu.vc.area.VcXssMenuArea.onInit(VcXssMenuArea.java:232) 
at com.sap.xss.ser.xssmenu.vc.area.wdp.InternalVcXssMenuArea.onInit(InternalVcXssMenuArea.java:257) 
at com.sap.xss.ser.xssmenu.vc.area.VcXssMenuAreaInterface.onInit(VcXssMenuAreaInterface.java:162) 
at com.sap.xss.ser.xssmenu.vc.area.wdp.InternalVcXssMenuAreaInterface.onInit(InternalVcXssMenuAreaInterface.java:144) 
at com.sap.xss.ser.xssmenu.vc.area.wdp.InternalVcXssMenuAreaInterface$External.onInit(InternalVcXssMenuAreaInterface.java:220) 
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at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200) 
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at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:253) 
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149) 
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at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386) 
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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) 
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at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:176) 
 
Thanks a lot in advance. 
Regards, 

Hi prodyut kumar sen ,
Thanks for reply.
1. Server Process is ok
2. Logon Group(Tracsation SMLG) is ok.
3. Technical system is ok in SLD.
4. We are already increasing the no of JCo connection as blow.
JCo Pool Configuration
 Maximum Pool Size: 50
 Maximum Connections: 200
 Connection Timeout (msec.): 30
 Maximum Waiting Time (msec.): 60
5. Network connection (Ping EP and ERP) is OK.
 Ping <host> -l 65500 -t
6. Hosts and Service file is OK.
 We have DNS Server. It is ok too.
7. We are already settings for these values as below. (Note 316877).
Environment Variable
 CPIC_MAX_CONV = 5000
SAP-Gateway
 gw/max_conn = 4000
 gw/max_sys=3000
 gw/max_overflow_size=60000000
 gw/max_shm_req = 400
Profile parameters
 rdisp/tm_max_no=10000
 rdisp/max_comm_entries=2000
Sometimes, I still occur an error in Web Dynpro for Java.

(102) RFC_ERROR_COMMUNICATION: Connect to message server host failed

Hello,
I'm almost giving up on this...I've been messing with this for too long now...
I get this error message:
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM
TYPE=B MSHOST=exts0002 GROUP=PUBLIC R3NAME=ANB MSSERV=sapmsANB PCS=1 ERROR       hostname 'exts0002' unknown TIME
Tue Feb 14 16:40:02 2006 RELEASE     640 COMPONENT   NI (network interface) VERSION     37 RC          -2 MODULE      ninti.c
LINE        332 DETAIL      NiPGetHostByName2: hostname 'exts0002' not found SYSTEM CALL gethostbyname_r COUNTER     1
I try to get the flightlist demo to work. I've put in "sapmsANB         3600/tcp" in services file locally in my machine (I'm using Sneak Preview SP11).
I've also done everything in "/people/sugree.phatanapherom/blog/2005/08/14/configuring-sld-in-sneak-preview-sap-netweaver-04-sneak
I've done everything possible to get this to work, but no luck.
What is wrong here?, please help

Now I've put in "193.183.156.17     PetJoh     PetJoh.afab.local" in Hosts -> rebooted -> but still can't ping exts0002 (or the fully resolved name to it) I can't ping the actual IP nr either.
I can, however use JCO java code like:
import com.sap.mw.jco.*;
public class R3Connect extends Object {
     JCO.Client mConnection;
     public R3Connect() {
          try {
               // Change the logon     information     to your     own     system/user
               mConnection     =
               JCO.createClient(
               "100",                                        // SAP client
               "rfcuser",                                   // userid
               "jakob",                                   // password
//               null,                                        // language
               "en",                                        // language
               "anb.af.hosting.emtab.com",               // application server host name
               "00");                                        // system number
               mConnection.connect();
               System.out.println(mConnection.getAttributes());
               mConnection.disconnect();
          } catch (Exception ex) {
               ex.printStackTrace();
               System.exit(1);
     public static     void main (String args[]) {
               R3Connect app =     new     R3Connect();
This works perfectly fine to connect, Why doesn't SLD?

RFC_ERROR_COMMUNICATION: Connect to message server host failed

We are trying to create JCO destination
and we are getting the below problem
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=sappw2ci GROUP=PUBLIC R3NAME=PW2 MSSERV=sapmsPW2 PCS=1 ERROR service 'sapmsPW2' unknown TIME Thu Jan 10 23:34:05 2008 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -3 MODULE nixxhsl.cpp LINE 776 DETAIL NiHsLGetServNo: service name cached as unknown COUNTER 1
we added sapmsPW2 in the services file still we are facing the problem
i saw all the related posts in the forum but nothing worked
please help me in resolving this issue and points will be awarded for sure
Bala

Hi,
This JCO Exception caused by network problems, connection breakdowns, gateway problems, unavailability of the remote SAP system, etc.
What you can do is: Get the host of the SAP System from dev_jrfc.trc or the JRFC trace; ping the SAP system from command line; check routers, gateways, SAP systems
If an error has occurred on a lower communication layer, for example an RFC_ERROR_COMMUNICATION or RFC_ERROR_SYSTEM_FAILURE exception, have a look at the dev_jrfc.trc files. These files are written by JRFC and can be found in the directories j2ee/cluster/server* of the J2EE Application Server Installation.
Please check this blog and link:
The specified item was not found.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.highlightedcontent?documenturi=%2fhelp%2fsdn_help_nw04s%2fsaphelp_nw04s%2fhelpdata%2fen%2f3a%2f3b1b40fcdd8f5ce10000000a155106%2fcontent.htm
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.highlightedcontent?documenturi=%2fhelp%2fsdn_help_nw04s%2fsaphelp_nw04s%2fhelpdata%2fen%2f94%2f3c1b40fcdd8f5ce10000000a155106%2fcontent.htm
Hope it helps....
Regards,
Mona

JCo Destination Failing With RFC_Error_COMMUNICATION

Hi Gurus,
We installed a new Bi system with ABAP and JAVA stacks on different hardware and SIDs, now we have problem in integration where JCO BI Meta Data connection is giving following error if I test it. Ping is also failing.
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=host.domain.com GROUP=PUBLIC R3NAME=<SID> MSSERV=sapms<SID> PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR service 'sapms<SID>' unknown TIME Tue Aug 10 05:26:09 201 RELEASE 701 COMPONENT NI (network interface) VERSION 38 RC -3 MODULE nixxhsl.cpp LINE 776 DETAIL NiHsLGetServNo: service name cached as unknown COUNTER 2
I checked sapms<SID> in etc -> services on ABAP host it is defined to message server port, I have added sapms<SID> as 8100 in SLD connection.
All three connections from portal as successful, still JCo destinations are not working.
Note:I have initally added message server port as 3600 in SLD connection where I replaced it to 8100 now, not sure whether this has any impact.
Kindly help.
Thanks
Gopal

Hi,
Please add the sapmsSID entries for both systems (java and abap) in the /etc/services file of BOTH SERVERS. This means that each server should have entries for every system in your landscape.
Additionally, please ensure that this is set to 36<NN> and not 8100 as you mentioned. The reason is that 8100 is ABAP HTTP port, but 36<NN> is message server port. These two are different.
Try this.
Regards,
Shitij

RFC_ERROR_COMMUNICATION: Connect to message server failed

Hi,
I think this is the most common error that one can face and have seen quite a few threads in the forum. Still, i couldn't resolve my problem.
I am getting the following error when i tried to connect to SAP using SAP JCO connector with load balancing.
(102) RFC_ERROR_COMMUNICATION: Connect to message server failed
Connect_PM MSHOST=sapserver, R3NAME=D11, GROUP=Group1
LOCATION    CPIC (TCP/IP) on local host
ERROR       partner not reached (host sapserver, service sapmsD11)
TIME        Wed Jun 24 16:05:49 2009
I added the service sapmsD11 in the services file of my client as well as in R/3 server.
I got the above error when i tried to connect using load balancing. Without load balancing, i was able to connect to R/3 server successfully. Can any one tell how to figure out the message server host name ?
Can the application server host name and message server host name be same ?
PS: I am able to ping my R/3 server from my client.
Thanks,
Prasad.

Hi,
Check that you have configured properly using the below document. And check the message server of R/3 is configured properly in the SLD.
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/c0c1d495-048e-2b10-babd-924a136f56b5
Function module to get the message server host name and port in R/3.
SLDAG_GET_MESSAGE_SERVER_INFO
See this thread also..
Re: Jco Destination
Regards,
Charan

(102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed

hello everybody,
i have a problem in all my receiver RFC comunication Channel (PI 7.1).
Every night we resart the R3 system where CC need to comunicate.
On the morning all Receiver RFC CC don't work and i have the follow error:
Receiver channel 'CC_SAP_RFC_LOOKUP' for party '', service 'BS_ECD'
Error can not instantiate RfcPool caused by:
com.sap.aii.adapter.rfc.RfcAdapterException: error initializing
RfcClientPool:com.sap.aii.adapter.rfc.core.repository.RfcRepositoryException: can not connect to
destination system due to: com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect
to SAP gateway failed
Connect_PM TYPE=A ASHOST=192.168.10.38 SYSNR=00 GWHOST=192.168.10.38 GWSERV=sapgw00 PCS=1
I need stop and start the CC.
I cannot propose to customer to stop and start CC every morning.
How can i solve this problem?
thanks
Alex

Hi,
As a workaround you can plan the availability of your RFC channels according to the downtime of R3 system.
The channels will be stopped and started automatically in this case. take a look here,
http://help.sap.com/saphelp_nwpi71/helpdata/en/46/ad6cfeb5492a86e10000000a1553f6/content.htm
regarding the problem, did you see Q25 of this note
Note 730870 - FAQ XI 3.0/ PI 7.0/ PI 7.1/ PI 7.11/ PI 7.2/ 7.3 RFC Adapter
regards,
francis

Com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP

For reason to change server IP address,
EP: 192.168.2.21 to 192.168.2.41
BW:192.168.2.22 to 192.168.2.42
and fix system by steps:
1,logon bw system,using tcode sm59 to modify tcp/ip connection.
2,logon ep system using visual administrator,and modified jco parameters.
3,logon ep system using ie,and modified sld,datasupplier.
4,restart bw and ep system.
after changed,the BEx Web did not work,
enter Maintain Jco destination
select jco destination: mete_data
click test
raise the error:
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed Connect_PM TYPE=B MSHOST=bw GROUP=public R3NAME=BW1 MSSERV=sapmsBW1 PCS=1 LOCATION CPIC (TCP/IP) on local host with Unicode ERROR partner '192.168.2.22:sapgw00' not reached TIME Tue Dec 18 15:39:34 2007 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -10 MODULE nibuf.cpp LINE 4601 DETAIL NiBufIConnect: connection pending after 60000ms SYSTEM CALL connect ERRNO 55 ERRNO TEXT A connect operation on a socket is not complete. COUNTER 1
would someone tell me how to resolve this problem.
regards

Hi,
It seems that the SAP gateway host is deactivated or the TCP/IP port 33xx (where xx corresponds to the system number) is not open.
First try pinging <IP address>. If there is no reply, then Boot SAP Gateway host required.
Check whether the TCP/IP port 33xx is open (where xx corresponds to the system number) and start the SAP gateway
The TCP/IP port is also partially defined in the services file as an sapgw<SID> or sapgwxx entry (where xx corresponds to the system number). The services file is in the Windows directory or in WinNT/System32/drivers/etc.
Hope this helps.
Regards
Srinivasan T

RFC_ERROR_COMMUNICATION ERROR Group PUBLIC not found

I using the SAP Discovery 2004s system. When I logon to Portal using J2EE_ADMIN, then enter any tab for HR like HR admin or ESS I get the following error:
com.sap.mw.jco.JCO$Exception: (102)
RFC_ERROR_COMMUNICATION:
Connect to message server host failed Connect_PM TYPE=B MSHOST=iwdfvm2160
GROUP=PUBLIC R3NAME=ERP MSSERV=sapmsERP PCS=1 LOCATION CPIC (TCP/IP)
on local host with Unicode
ERROR Group PUBLIC not found
TIME Thu Dec 14 11:03:48 2006 RELEASE 700 COMPONENT LG VERSION 5 RC -6
MODULE lgxx.c LINE 4288 DETAIL LgIGroupX COUNTER
I have a PUBLIC entry in SMLG and I have a valid entry in etc/services. The problem I think is with SMLG the PUBLIC entry does not have a green box under the status field. Can someone elaborate on this more?

Ensure that your host file contains three entries pointing to IP addrsss of Discovery System:
<IP ADDRESS>[tab] SAPDiscoverySystem<space>iwdfvm2160<space>owdfvm2160.wdf.sap.corp
This addresses the internal file names as well as SAPDiscoverySystem. This can also be accomplished with three entrie in your company DNS but many companies do not allow out-of-domain entries.
I will modify the instructions on Prerequisites page.
Rick

RFC_ERROR_COMMUNICATION: converting to/from net format failed

dear all,
when an external program developed in delphi connect to SAP, occurs RFC_ERROR_COMMUNICATION error. but some PC connect SAP successfully through the external program.
i am puzzled.
the detail error is below:
Start ************************************************
Error Group
RFC_ERROR_COMMUNICATION
Message
Connect to SAP gateway failed
Connect_PM GWHOST=192.168.0.252, GWSERV=sapgw00, ASHOST=192.168.0.252, SYSNR=00
LOCATION    SAP-Gateway on host sapdev / sapgw00
ERROR       converting to/from net format failed
TIME        Sun Jul 30 11:30:03 2006
RELEASE     640
COMPONENT   SAP-Gateway
VERSION     2
RC          734
MODULE      gwxxrd.c
LINE        7533
DETAIL      field = gw_conn_client->lu, rc=512
COUNTER     2
End *************************************************
thank you for your help!

Dear...
I have a same problem in our system,and also my computer name is korean.
Of course If I change my computer name to English, I can solve this problem.
But is there any other solution to solve this problem except not changing computer name?
Because our company use active directory and all employer's computer name is korean.
So maybe changing all computer name is impossilbe.
So I want another solution.
Best regards....

RFC_ERROR_COMMUNICATION

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