SAP Knowledge Base Article - Preview

3790730 - HTTP 500 - "Session timeout" when opening multiple sessions in Portal

Symptom

When opening multiple parallel browser tabs that access a Web Dynpro ABAP application in Enterprise Portal, the following behavior is observed:

  • Up to 6 parallel sessions, the application works as expected.
  • Starting with the 7th session, the Web Dynpro ABAP application fails on two of the previously opened tabs.
  • The browser network trace shows that the failing request returns HTTP 500 – Session Timeout.

From the ICM developer level 2 trace, we can see that the request successfully reached the backend, was assigned to a work process, and eventually returned an HTTP 500 error due to a session timeout.

In addition, you found the following EUID matched with the request dump:

dev_icm

[Thr xxxx] DUMP of EUID testidabcxyz -- count 4


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Product

ABAP platform all versions ; SAP ERP 6.0 ; SAP NetWeaver all versions ; SAP S/4HANA all versions ; SAP Web Application Server for SAP S/4HANA all versions

Keywords

ESID,  parallel, session, 500, Session Timeout, external , KBA , BC-CST-IC , Internet Communication Manager , Problem

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