keepalive and gui_auto_logout profile param

Symptom

Description of the profile parameters rdisp/keepalive and rdisp/gui_auto_logout is unclear

Other Terms

timeout, SAPgui, DP_CONN_DEAD, keepalive

Reason and Prerequisites

 

Solution

(1) rdisp/keepalive
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Parameter for application servers, unit seconds, default 1200

If the frontend has not sent any data to the application server for "keepalive" seconds, the application server sends a short "Ping" message to the frontend. The frontend should answer within the next 40 seconds with "Pong", otherwise the application server assumes that the link is dead and releases all resources to the corresponding user.  An error line "DP_CONN_DEAD" then appears in the trace file dev_disp.
This usually occurs when a user switches off their PC without carrying out the shutdown procedure.
A value of 0 means that no check occurs.


(2) rdisp/gui_auto_logout
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Parameter for application servers, unit seconds, default 0

If the frontend has not sent any data to the application server for "gui_auto_logout" seconds, the frontend closes the user connection and releases the resources.
A value of 0 means that no users are logged off automatically.