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

[Former Member]

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

[Former Member · Accepted solution]

"ERROR hostname 'cgslsvr1' unknown" This means that the client cannot find the hostname in its DNS or hosts file. You can verify this by pinging cglsvr1 from the system that runs your application (i.e. the WebAS).