Reinstallation SAP ABAP Netweaver issue message server not connected

[Former Member]

hi ,

i am trying to reinstall SAP ABAP Netweaver but getting error in step 24 of 27. i am getting the following error.

WARNING 2010-07-20 08:52:08.078 iaxxcmsclient.cpp:93

CIaMsgClient::CIaMsgClient(localhost, 3900)

Connect to message server (localhost/3900) failed: NIECONN_REFUSED.

INFO 2010-07-20 08:52:08.078

CJSlibModule::writeInfo_impl()

State of instance NSP/DVEBMGS00 changed from ABAP: UNKNOWN to ABAP: UNKNOWN.

WARNING 2010-07-20 08:52:37.171 iaxxcmsclient.cpp:93

CIaMsgClient::CIaMsgClient(localhost, 3900)

Connect to message server (localhost/3900) failed: NIECONN_REFUSED.

WARNING 2010-07-20 08:53:07.156 iaxxcmsclient.cpp:93

CIaMsgClient::CIaMsgClient(localhost, 3900)

Connect to message server (localhost/3900) failed: NIECONN_REFUSED.

WARNING 2010-07-20 08:53:36.125 iaxxcmsclient.cpp:93

CIaMsgClient::CIaMsgClient(localhost, 3900)

Connect to message server (localhost/3900) failed: NIECONN_REFUSED.

Please do tell me how to resolve this issue.

thanks,

tanmaya

[paul_power · Accepted solution]

Hello Tanmaya,

From the entry

Connect to message server (localhost/3900) failed: NIECONN_REFUSED

please ensure port 3900 is not blocked.

Maybe port 3900 is block by network, or in use in the affected system

Check if you are encountering one of the issues listed in

SAP note 1249364 Inst. SAP NetWeaver based on Kernel 7.11 - UNIX

Regards,

Paul

[Former Member · Accepted solution]

Hi Paul,

how to find whether the port is blocked or not. well when i have configured loopback adapter then it says that ip is blocked by TV network and it is hidden. i am not able to find that TV adapter so that i can uninstall it. i think the issue is with that. i dont know what to do.

Thanks,

Tanmaya

[michael_mulvey · Accepted solution]

Hi Tanmaya,

Question: How to find whether the port is blocked or not?

(A) You can check the message server port in txn SMMS or dev_ms trace in ST11 to verify if the port is correctly set. If it is and you cannot connect to the message server then you will need to find out which program/service is occupying port 3900. So please follow the steps below:-

(A1) On Unix there is a program called LSOF available which shows ALL programs that occupies all ports. SAP Note [164937|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bc_cst/~form/handler%7b5f4150503d3030323030363832353030303030303031393732265f4556454e543d444953504c4159265f4e4e554d3d313634393337%7d] shows were you can get this program.

(A2) On Windows the equilivent of LSOF is Process Explorer from the Sysinternals Suite. This is available on the MS website [here|http://technet.microsoft.com/en-us/sysinternals/bb842062.aspx]. You can use this to filter by port.

So using these programs you will be able to see which programs occupy all ports on your server and either remove or disable them.

P.S. You can use SAP Note [421359|http://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/oss_notes/sdn_oss_bc_cst/~form/handler%7b5f4150503d3030323030363832353030303030303031393732265f4556454e543d444953504c4159265f4e4e554d3d343231333539%7d] to bind any port to any service on Unix including "protected" ports !!!

Hope this helps

Michael

[former_member257624]

Hello,

in this case, the main sapinst log will not help much.

The cause of the issue will be described in the work directory of this instance.

Regards,

Carlos