Connect to message server host failed (NW2004s AIX )

[former_member182416]

Hi All

i just installed Nw2004s on AIX Operating System.

When i test a JCO then i get this error.

com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=p550b GROUP=SPACE R3NAME=PD8 MSSERV=sapmsPD8 PCS=1 ERROR service 'sapmsPD8' unknown TIME Tue Nov 6 08:59:20 2007 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -3 MODULE nixxhsl.cpp LINE 776 DETAIL NiHsLGetServNo: service name cached as unknown COUNTER 1

I know how to get rid of this in Windows (C:\WINDOWS\system32\drivers\etc\services).

How to get rid of this in AIX , Which File to Edit?

Regards,

Rajendra

[Former Member · Accepted solution]

Hi,

Check in the /etc/services

Regards

Ayyapparaj

[Former Member]

Hi Rajendra

check in <b>drivers\etc\services\sapmsPD8 3600/tcp</b>

here you need to some points

1)sapmsPD8 is your SID of your back end R/3

2) 3600

36 is the messege server

00 is the instance number.. if you have many instances then this number will increase ie. 3601,3602

3) As you are using TCP you need to mention tcp along with message server and instance. other than TCP there will be UDP

4) Actaully you need to make entry of sapmsPD8 in your portal's services beacuse you are telling the portal that this PD8 of R/3 is going to access the portal

5) If you have many R/3's you need to have those many entries in your portal services file

6) The best case to consider is FPN. Its Federated Portal Network. means. there will be many back end system but only one central portal server. so you need to enter only one entry..this is a very rare case

Best Regards

Chaitanya.A

[former_member182416]

Hi

Adding the entry <b>sapmsPD8 3600/tcp</b>

in the /etc/services file Solved the problem.

Before that we need to ensure that the Portal Server is able to Ping to the R3 Server.

Regards,

Rajendra