Java add-in cannot connect to message server

I'm installing a Java add-in to an ABAP system (NW 2004s). During the start of the Java Engine, the processes cannot be started. When I look al dev_jcontrol, I see this:
Thr 2860] Sun Jul 30 19:59:45 2006
[Thr 2860] ***LOG Q0I=> NiPConnect2: connect (10061: WSAECONNREFUSED: Connection refused) [nixxi.cpp 2764]
[Thr 2860] *** ERROR => NiPConnect2: SiPeekPendConn failed for hdl 2 / sock 1740
     (SI_ECONN_REFUSE; I4; ST; <IP-ADDRESS>:36) [nixxi.cpp    2764]
[Thr 2860] *** ERROR => MsIAttachEx: NiBufConnect to /36 failed (rc=NIECONN_REFUSED) [msxxi.c      652]
[Thr 2860] *** WARNING => Can't attach to message server (/36) [rc = -100]-> reconnect [jcntrms.c    368]
It seems that JControl tries to connect to the message server on port 36. Where can this be corrected?

Discovering this thread when I had the same problem (with port number 36 not the 3901) I was frustrated to see no posted solution. So now that I have solved it, here is my solution:
Cause
=====
The J2EE add in adds a number of parameters to the default profile - however it does not import these into the database version of the profiles in RZ10. Hence if you modify a parameter in the DEFAULT.PFL using RZ10 and activate it without first doing a "Import Profiles of Active Servers" the parameters added by J2EE install dissappear.
Solution
========
In my case, I just compared the DEFAULT.PFL.BAK file to DEFAULT.PFL and readded the missing entries - incase people have lost there BAK file, here are the entries I needed to put back in (note your port numbers and instance numbers may differ):
SAP Central Service Instance for J2EE
j2ee/scs/host =
j2ee/scs/system = 01
j2ee/ms/port = 3901
j2ee/dbtype = ora
j2ee/dbname = BWP
j2ee/dbhost =
Restart the instance and magic! It works.
Regards,
Jason Currey

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Logon balancing error:cannot connect to message server (rc=9)

Hi Gurus,
I have just installed SAP GUI 710 in my new system and copied the saplogon.ini file to the respective folder in the new system.
I am now able to see the servers in the logon pad but not able to login .
When i try clicking the logon i am getting the below error message "
"Logon balancing error:cannot connect to message server (rc=9)"
Then further expanding the message i am getting the below message
" Error: Server '?' unknown
Tue Mar 02 11:51:05 2010
Release 710
Component NI (Network Interface), Version 39 rc =-3 , Detail NiErrSet. "
Can you please help me out in accessing the servers.
Regards
Vikram

Check OSS Note : 882741
Summary
Symptom
Some users cannot longer connect SAP GUI to any SAP systems e.g. via SAP Logon, SAPShortcut etc. although they have not made any update to either SAP GUI or SAP system. The attempt to connect to the SAP system ends with error messages like this: "Logon balancing error: could not connect to message server (rc=9)", "service sapmsXXX unknown" or "service sapdp## unknown".
The detailed error information is as follows:
    Error: service 'sap...' unknown
    Component NI (network interface), ...
    rc = -3, module ninti.c, line 463
    Detail NiPGetServByName: service 'sap...' not found
    System Call getservbyname
Other terms
service sapmsXXX unknown,logon balancing,service sapdp## not found error,etc/services,drivers\etc\services,getservbyname, sapdpxx
MSN Messenger 7.5,Connection Troubleshooter
Reason and Prerequisites
The reason for this malfunction is, that the datatype of the registry value HKLM\System\CurrentControlSet\Services\TCPIP\Parameters\DatabasePath
was changed from REG_EXPAND_SZ to REG_SZ.
The following programs are currently known to cause this registry change:
Starting MSN Messenger 7.5 "Connection Troubleshooter" (Build 7.5.0299).
Installation of MSN Messenger 7.0 or MSN Messenger 7.5 with the option automatic scanning and configuration of ports.
This modification prevents the expansion of environment variables in the value of the parameter. Therefore,
      %SystemRoot%\system32\drivers\etc
is not translated to
   c:\windows\system32\drivers\etc
and the services database is not found by the API function getservbyname().
If you have checked the datatype of registry value DatabasePath and it is REG_EXPAND_SZ, apply SAP Note 52959 to check the appropriate settings in the services file.
Solution
Start the registry editor and rename the registry value HKLM\System\CurrentControlSet\Services\TCPIP\Parameters\DatabasePath
Create an Expandable-String Value (REG_EXPAND_SZ) with the same name and value.
If more PCs are affected, you can export the correct value to a .reg file and import the .reg to other PCs.
If you have the same problem although you have not installed Microsoft MSN Messenger 7.5, create a customer message, collect the following information and attach it to the message according to note 541726 or upload it to sapservX (see note 40024):
Scan your workstations for spyware and viruses with up-to-date virus definitions. If you already did that what was the result ?
What software has been installed recently ? (client software, Firewall)
Create a registry export of the following key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstallon the affected and the unaffected PC respectively and attach the two .reg files to the customer message.
Are the users on the affected workstations logged on with administrative credentials (local administrator ) ?
Create an MPS Report Networking and Setup Perf of an affected workstation so that we can check if they use an software in common.
You can download the Networking MPS Reporting Tool at:
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd915706/MPSRPT_Network.exe
You can find a short description about the features of the tool at:
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd915706/MPSRPT_Network_Readme.txt
The Setup Perf MPS Reporting Tool is located at:
http://download.microsoft.com/download/b/b/1/bb139fcb-4aac-4fe5-a579-30b0bd915706/MPSRPT_SETUPPerf.EXE
Run this report too on identically configured workstations, which are not affected.
If you have already changed back the DatabasePath parameter and if after a while the value was switched back to REG_SZ perform the following steps to help us to identify the reason for this problem:
Switch the datatype back to REG_EXPAND_SZ
Download Regmon from http://www.sysinternals.com on the affected machines
Enable auditing on the affected clients
Modify the settings of the eventlog so that no important entry is deleted!
Open Regedit and highlight HKLM\System\CCS\Services\TCPIP\Parameters
Right-click on "Parameters" and choos "Permissions" and click "Advanced".
Choose "Auditing" and "Add".
Add "Everyone" and select "this key only" under "Apply onto".
Check the boxes "Set Value" and "Delete" and click "OK".
Apply these settings
Start Regmon and apply the correct filter settings:
Press the "magnifying glass" button to stop the monitoring.
Press the rubber button to delete all logged entries.
Go to "Options Filter/Highlight".
Copy the following value to the include field: tcpip\parameters\databasepath and click "Apply".
Start Regmon by pressing the magnifying glass button
Verify that logging starts when you double-click the TCPIP Key in regedit!
If the datatype will be changed again, provide us the output of the monitoring tools.
Solution provided by Microsoft
This issue is said to be fixed as of build 7.5.0311 of MSN messenger.

Load balancing error 88: Cannot connect to message server (rc=9)

Hi,
We are facing a problem in the system object.
initially we created a system object with loadbalancing template ,and everything worked fine, but after couple of months we found a error "Load balancing error 88: Cannot connect to message server (rc=9)", so we have created a Dedicated application server object which resolved our issue.
My question is why has this problem occured, and since my client side has lot number of users and we wish to keep the system back to load balancing object.
How can i make my system object work back, what might be the causes?
Thanks
Srivastsa Kondapally

Load balancing only works if the message server is available and the logon group specified exists as well. If one of those changes, then it will break until you get the values set correctly.

Cannot connect to message server

Hi,
I have integrate a BSP Application from a sap ERP system in my portal !
After I checked this BSP, my ICM from my SAP ERP system failed : Server Overload !
I tried to restart the SAP system and know I have this error in the mmc :
disp+work.exe Running but not connected to Message Server !
In my dev_disp file :
DpJ2eeStart: j2ee state = STARTED
rdisp/http_min_wait_dia_wp : 1 -> 1
***LOG CPS=> DpLoopInit, ICU ( 3.0 3.0 4.0.1) [dpxxdisp.c   1617]
***LOG Q0F=> DpLoopInit, nomstry () [dpxxdisp.c   1704]
ERROR => Connection to Message Server failed - check installation [dpxxdisp.c   1705]
In my std_server0.out :
Framework started for 151840 ms.
SAP J2EE Engine Version 7.00   PatchLevel is running!
PatchLevel March 04, 2006 16:23 GMT
>
Login :
SAP J2EE Engine Version 7.00   PatchLevel is shutting down! PatchLevel March 04, 2006 16:23 GMT
Stopping services.
Service jmsconnector stopped. (0 ms)
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Service com.adobe~TrustManagerService stopped. (31 ms)
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Service tcsecwssec~service stopped. (0 ms)
Service tc.CBS.Service stopped. (0 ms)
Service com.adobe~DocumentServicesDestProtoService stopped. (15 ms)
Service pmi stopped. (47 ms)
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In my std_dispatcher.out
Framework started for 46754 ms.
SAP J2EE Engine Version 7.00   PatchLevel is running!
PatchLevel March 04, 2006 16:23 GMT
>
Login :[ParNew 159114K->11211K(557952K), 0.3431082 secs]
[Full GC[Unloading class sun.reflect.GeneratedMethodAccessor17]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor5]
[Unloading class sun.reflect.GeneratedMethodAccessor15]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor12]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor2]
[Unloading class sun.reflect.GeneratedSerializationConstructorAccessor8]
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Can you help help me, please.
Thank you.
Best regards,
Mathieu

Logon balancing error 88: Cannot connect to message server(rc=9)

HI.
I AM USING R3 ECC 6.0
PLZ HAVE A LOOK ON BELOW IMAGES.
IN VM WEAR I HAVE INSTALLED THE ECC
THROUGH THE WINDOWS 7 I AM LOGIN ECC 6.0
EVERY TIME WORKING
BUT RECENTLY I BOO MY PC WINDOWS 7
BUT IF I TRY TO RUN THE SAP LOGON
ABOVE ERROR MESSAGE IS COMING.
I SEARCHED IN NET.
SOME BODY SUGGESTED THAT I NEED ADD ONE LINE AT SERVICES. FILE...(PLZ HAVE A LOOK ON 2 IMAGE)
IS IT CORRECT TO ADD THE LINE..
CAN I ADD THIS LINE
SAPMS<SID> 3600/TCP
ABOVE ONE IS CORRECT OR NOT ...
WHERE CAN I ADD IN VM WEAR SYSTEM OR IN WINDOWS 7 SYSTEM.
AND ALSO I AM HAVE ONE MORE DOUBT.
PLZ HAVE A LOOK ON 2 IMAGE..
I AM HAVING 2 SERVICES. FILES..
I NEED YOUR VALUBALE SUGGESTIONS..

Hi,
Please change the <SID> of SAPMS<SID> to the real SID of the target system.
For exmple, if the SID is ABC, then "SAPMSABC 3600/TCP"
And about the port, actually the port should be 36<nn>.
So please find the instance number of your message server.
For example if the instance number is 00, then "SAPMSABC 3600/TCP"
if the instance number is 10, then "SAPMSABC 3610/TCP"
Hope this helps.
Best regards,
Shuai

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http://support.apple.com/kb/TS3899
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Java add-in cannot connect to message server

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