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jco connection error com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNIC

Former Member
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hi friends

we have an issue with the jco connection through the a rfc connction

com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=cgslsvr1 GROUP=PUBLIC R3NAME=CGQ MSSERV=sapmsCGQ PCS=1 ERROR hostname 'cgslsvr1' unknown TIME Wed Jul 9 04:46:06 2008 RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -2 MODULE nixxhsl.cpp LINE 223 DETAIL NiHsLGetNodeAddr: hostname cached as unknown COUNTER 2

i have tried all the possible ways to troubleshoot this issue but i couldnt solve the issue

i have set the sapms(sid) 36(instance no )/tcp in sevices file in etc (aix 5.2)

i have set this in frontend E.P server and backend sever r/3 also.

i have set smlg ip address and rfc enable also .

i have configured the backend abap system in sld .

i have restarted the sever after setting the parmeters .

every thing i have done but where went wrong i dont know help if any clue is there

thanks in advance

raja

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Answers (3)

Answers (3)

Former Member
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thanks to all for helping

Former Member
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Connect to message server host failed Connect_PM TYPE=B MSHOST=cgslsvr1 GROUP=PUBLIC R3NAME=CGQ MSSERV=sapmsCGQ PCS=1 ERROR hostname 'cgslsvr1' unknown

Hi

You need to use FQDN fully qualified domain name.

cgslsvr1 is unknown this means you need to define the hostname with IP address in host file in

C:\windows\system32\drivers\etc

OR

C:\Sysroot\system32\drivers\etc

Hope this helps.

Swapnil

former_member698570
Active Participant
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Hi,

did you try setting the name in /etc/hosts or are you using DNS?

Maybe it helps.

Cheers