Max no of 100 communcations exceeded EP 7.0 NW 2004s SP14

[Former Member]

Hi Experts,

Today we were experiencing a typical error on our portal while accessing one of our backend BW system.

The error read as

Connect to SAP Gateway failed

...............

............

LOCATION CPIC(TCP/IP) on local host with Unicode

ERROR max no of 100 communications execeeded.

.............

...............

MODULE r3cpic_mt.c

We tested the connection of the RFC destination from the BW system and it also brought up the same error.

The same was resolved only after restarting the corresponding portal server node.

1.What is exact cause of this problem?

2.Where is the value for this max no of communication set in Portal?

3.How can we avoid this problem in future?

4.Any document or note which tells in detail about the communication between portal and backend sytems.

Thanks,

Jimmy

[Former Member · Accepted solution]

Jimmy,

check this link

http://help.sap.com/saphelp_nw70/helpdata/EN/bb/ad1c3d2b058c4ce10000000a114084/frameset.htm

that talks about the parameters which you need to set in the backend for avoiding this problem in future.

[Former Member · Accepted solution]

Hi Bala,

Sorry for the delay in reply.

So what you say is that the problem lies in the backend system i.e. our BW system and we need to change parameter on this system.

But I have note that the parameter disp/max_comm_entries and rdisp/max_arq both have current value 2000 on our BW system.

Can you please explain that how this CPIC conversations between a backend SAP system and SAP portal works?

Thanks,

Jimmy

[Former Member · Accepted solution]

even i am not sure about that.i got this info from my basis team

[Former Member · Accepted solution]

Jimmy,

You might want to refer to the SAP NOTE: 316877

Hope this helps.

Cheers,

Sandeep Tudumu

[Former Member · Accepted solution]

Just so yo know..SAPNote 316877 helped my team in a similar situation... We only needed to follow step (a) in the note. It's quite possible one's better off following all the steps.......

I'm curious on the appropriate value to assign based on a user load of say 1333 concurrent users....any ideas people......

Thanks

Edited by: Kabir Aregbesola on Jul 24, 2008 6:17 PM

[Former Member]

You have to set the CPIC_MAX_CONV environmental parameter to a higher value. How to do this depends on whether you are using unix or windows.

Regards,

Tom