Basis Errors and Solutions

Symptom
You can use transaction SM51 to activate and deactivate an application server. When you deactivate a server, the LB value remains unchanged and the Web Dispatcher can continue to send data to this server.
Other terms
SAP Web Dispatcher
SM51
TH_SERVER_STATE
Reason and Prerequisites
This problem is caused by an error in the function module TH_SERVER_STATE.
Solution
Implement the corrections to [...]

Symptom
You want to assign the changes to the SAP Web Dispatcher to a patch level.
Other terms
sapwebdisp, HTTP load balancing, webdispatcher, wbdisp, wdisp,
dispatcher, HTTP, HTTPS, ROUTER
Reason and Prerequisites
This note shows changes in the SAP Web Dispatcher. You can receive the version of the SAP Web Dispatcher by using the command “sapwebdisp -v”:
For example, SAP Web [...]

Symptom
In the HTTP log file of the ICM or the SAP Web Dispatcher, the system no longer writes response cookies.
Other terms
response cookies, HTTP, HyperText Transfer Protocol, logging, missing, ICM, Internet Communication Manager,
Reason and Prerequisites
Reason:
This problem is caused by a program error in the kernel.
Prerequisites:
This error occurs as of the following kernel patch levels:
7.00: 191
7.01: 025
7.10: [...]

Symptom
In load situations, HTTP/HTTPS clients sometimes receive a timeout error or the error message “Connection timed out” from the Internet Communication Manager (ICM) or SAP Web Dispatcher.
Other terms
icm/listen_queue_len, icmbnd, EXTBIND
Reason and Prerequisites
The error occurs only when you use icmbnd. The use of icmbnd is activated using the option EXTBIND=1 for the parameter icm/server_port_.During connection setup, [...]