Performance issues, Network and Gateway communication issues

[Former Member]

The main issues in our environment is the slowness and we are trying to analyze from multiple directions. We see that the dialogue response times are <500ms. But the customer is experiencing very slow transactional response times including the navigation between screens.

The following are some of errors in SM21 logs that might be of some help:

15:06:40 <hostname>_<SID>_<Instance #> RD ? Q0R K Call of function NiRead failed, RC: -006

17:51:55 <hostname>_<SID>_<Instance #> D1 010 AXCWI R47 K Delete session 001 after error 003

17:51:55 <hostname>_<SID>_<Instance #> D2 010 AXCWI R11 K No active link found in the link table

18:33:10 <hostname>_<SID>_<Instance #> D2 010 AWUGB R49 K Communication error, CPIC return code 017, SAP return code 247

18:34:29 <hostname>_<SID>_<Instance #> D0 010 ITO-US-CPIC R49 K Communication error, CPIC return code 027, SAP return code 456

18:34:07 <hostname>_<SID>_<Instance #> RD ITO-US-CPIC Q0I K Operating system call SO_ERROR failed (error no. 239 )

20:29:28 <hostname>_<SID>_<Instance #> RD AWVUV S23 K Connection to CPI-C client 003 was closed

20:29:28 <hostname>_<SID>_<Instance #> RD AWVUV S74 S > Partner LU name:

20:29:28 <hostname>_<SID>_<Instance #> RD AWVUV S0R S > Host: xxxxxxxxxx

20:29:28 <hostname>_<SID>_<Instance #> RD AWVUV S0I S > Partner TP name:

20:29:27 <hostname>_<SID>_<Instance #> D1 010 ITO-US-CPIC R49 K Communication error, CPIC return code 020, SAP return code 223

20:29:27 <hostname>_<SID>_<Instance #> D1 010 ITO-US-CPIC R5A K > Conversation ID: 62547923

20:29:27 <hostname>_<SID>_<Instance #> D1 010 ITO-US-CPIC R64 K > CPI-C function: CMRCV

SAP Gateway log:

-

---

Tue Sep 9 18:10:05 2008

***LOG S0R=> GwDisconnectClient, client disconnected () [gwxxrd.c 8200]

***LOG S0I=> GwDisconnectClient, client disconnected ( SAPCPIC) [gwxxrd.c 8218]

*****************************************************************************

*

• LOCATION SAP-Gateway on host agfmgt33

• ERROR connection to client SAPCPIC on host <hostname> broken (read)

*

• TIME Tue Sep 9 18:10:05 2008

• RELEASE 31I

• COMPONENT SAP-Gateway

• VERSION 2

• RC 223

• MODULE gwxxrd.c

• LINE 8226

• COUNTER 604321

*

************************************************************************

When I was looking for SAP help documentation, relevant note (Note 41003: Gateway, Connection reset by peer, errno 232) is not available at SAP Support Portal

As per the note 41003, we have added a new parameter gw/keepalive = 0 to the instance profile of the CI and app servers. This seems to have not fixed the problem.

The note 41003 also provided a better alternative solution to download and apply the latest version of CPIC Programming Library. Let me know if its feasible. If so, provide details about how to obtain that as I couldn't find the version for SAP R/3 3.1H.

The tools available in R/3 3.1h are pretty basic and doesn't seem to provide much information. Can you provide us how to proceed to pinpoint where the system is slow.

- what logs / trace can be enabled.

- As we know response time calculation doesn't include Network time & GUI Time which might make a much difference. How to proceed to pinpoint the origin of the issue.

[Former Member]

can you see SMGW entries unusual like many entries , if yes try to delete inactive entries .pls make sure before you delete.

then go to SM58 and do same thing with TRFC sessions .

Regards

Nagaraju.M