TREX frequent disconnection from one of App Server

[Former Member]

Hello,

Lately, we have been facing issue with our TREX.

It disconnects or becomes unreachable from one of the App server of an system.

At the same time its reachable from other instances.

Symptoms :

1> TREX rfc from the App Server will fail

2> In TREXAdmin.sh, that particular server will turn "yellow" and data for that server will be unavailable

3> there are some old(like days old) active connections in SMGW

As an workaround, when we delete the old connections from SMGW of that app server, everything becomes normal back again.

We have already tried changing "timeout" parameters of TREX, but it didnt help.

Any ideas?

Regards,

VS

[manumohandas82]

Hi VS ,

Is it that the maximum number of connections defined reached ?

1070034 - TREX: Raise number of conversations

Please check the following Notes

1998384 - Troubleshooting RFC Connection to TREX Engine

Thanks ,

Manu

[Former Member]

Hi Manu,

Thanks.

I checked the notes, but not relevant.

There is no connection bottleneck when issue occurs

Regards,

Vikas

[Sriram2009]

Hi Vikas

1. Is the any firewall enable at OS level? or any network issues?

2. Could you refer the SCN link Trex RFC configuration for ABAP system

BR

SS

[Former Member]

Hello SS,

Thanks.

There is no firewall issue. it works fine most of the time. Issue is intermittent.

Regards,

Vikas

[Sriram2009]

Hi Vikas

What is the Trex SP level? if it is low try to upgrade the SP level latest - 1, and also refer scn link

RFC Connection in SM59 - Technology Troubleshooting Guide - SCN Wiki

BR

SS

[Former Member]

we are already on on 7.10.56

The rfc error we get is exactly the same, but solution doesnt help.

Regards,

Vikas

[manumohandas82]

Hi Vikas ,

As per your previous posts you say you have multiple application servers .

In your RFC connection have you mapped it to any one gateway ?

Check the following Note as well

1893014 - program <program ID> not registered

Thanks ,

Manu