Basis Errors and Solutions

Missing response cookies in log file of ICM Web dispatcher

July 14, 2009 at 5:58 am

[Communication] [cookies] [dispatcher] [dispatcher request] [HTTP] [HyperText] [ICM] [Internet] [logging] [Manager.] [missing] [Protocol] [response] [response.cookies] [struts2 dispatcher] [transfer]

1. Connection error between clients and ICM/Web dispatcherSymptom 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,...
2. SAP Web Dispatcher 7.10: Patch historySymptom 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...
3. ICM patch collection (7.10)Symptom Internet Communication Manager (ICM) 7.10 contains errors. Other terms icm, icman, sapwebdisp, HTTP, SMTP, Internet, HTTP request, 0d0a, \r\n, OOB, x-forwarded-for, ClientProtocol, watchdog, GET, POST, HEAD, PUT, SSL, dev_icm, dev_webdisp, soft...
4. ICM Patch Collection (7.11)Symptom Internet Communication Manager (ICM) 7.11 contains errors. Other terms icm, icman, sapwebdisp, HTTP, SMTP, Internet, HTTP request, 0d0a, \r\n, OOB, x-forwarded-for, ClientProtocol, watchdog, GET, POST, HEAD, PUT, SSL, dev_icm, dev_webdisp, soft...
5. Syslog Q01 when operating system call writev failsSymptom The syslog Q01 occurs when an attempt to write to a network connection fails. The trace file dev_w* of the affected work process contains entries such as the following: M ***LOG...
6. GZIP compression errors with HTTP/1.1 and long URLs IIISymptom The GZIP compression for response documents fails because the system does not set the HTTP header fields for the caching configuration when it checks the compression rule from Note 996604. Other...

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: 090

You must configure the parameter icm/HTTP/logging_ and a separate format string with the placeholder %{cookie}C.
Solution
Workaround:

There is no workaround.

Error correction:

This error is corrected with the patch level mentioned under “SP Patch Level” or with the following kernel patch level:
7.01: 051
7.10: 160
7.11: not yet available
7.20: not yet available

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