Web dispatcher - not working

[florian_royer]

Hello guys,

we have a problem concerning our web dispatcher.

Calling

[Link to site|http://pc7.phoron.com/]

we receive "The page cannot be displayed".

The SAP Management console tells us, that the responsible web dispatcher is not working. Trying to start it with sapwebdisp pf=... everything works fine (no error message or something like that). Looking back at the console the webdisp still appears green and neither the web page nor the web administration interface is reachable.

I don't really know why?!

[florian_royer]

Could you please give me some further details about your information?

The web dispatcher did his work already... So I could not explain to me why such basic parameters should not be set?!

[prashb]

Hi Florian,

Based on your reply:

Telnet <wd3-url> -> fails (Web dispatcher (or maybe something else?) is not working properly)

is this URL which you have problem ?

If yes, check for any firewall & DNS issues.

Also, if possible please send the webdispatcher instance profile, you should have backend message server hostname & port specified.

Check the connection to backend system from webdispatcher by following:

webdispatcher command prompt> telnet "message server hostname" "message server port"

hope this helps to solve your problem

Regards

Prashanth

[florian_royer]

WD3_W07_phoron01s --> Web dispatcher profile

SAPSYSTEMNAME = WD3
SAPGLOBALHOST = phoron01s
SAPSYSTEM = 07
INSTANCE_NAME = W07
DIR_CT_RUN = $(DIR_EXE_ROOT)\$(OS_UNICODE)\NTI386
DIR_EXECUTABLE = $(DIR_CT_RUN)
#-----------------------------------------------------------------------
# Accesssability of Message Server
#-----------------------------------------------------------------------
rdisp/mshost = phoron02s7
ms/http_port = 8100
#-----------------------------------------------------------------------
# Configuration for medium scenario
#-----------------------------------------------------------------------
icm/max_conn = 500
icm/max_sockets = 1024
icm/req_queue_len = 500
icm/min_threads = 10
icm/max_threads = 50
mpi/total_size_MB = 80
#-----------------------------------------------------------------------
# SAP Web Dispatcher Ports
#-----------------------------------------------------------------------
icm/server_port_0 = PROT=HTTP,PORT=81$$

telnet --> target system message server answers with "400 - bad request"

[florian_royer]

Web dispatcher works now - the solution was a reinstallation. I still do not know where the problem was...

[florian_royer]

The trace-file of the message server says:

• ERROR => MsSClientHandle: C1 (servername) send inv_name <ip>....

??

dev_webdisp:

[Thr 824] Wed Jun 11 07:11:29 2008

[Thr 824] *** ERROR => Connection request from (-1/65535/0) to host: , service: failed (NIESERV_UNKNOWN) [icxxconn.c 2738]

[Thr 824] *** ERROR => IcmConnClientRqCreate() failed (rc=-8) [icrxx.c 5100]

[Thr 824] *** ERROR => Could not connect to SAP Message Server at . URL=/msgserver/text/logon?version=1.2 [icrxx.c 2459]

[Thr 824] *** ERROR => rc=-1, HTTP response code: 0 [icrxx.c 2460]

[Thr 824] *** ERROR => see also OSS note 552286 [icrxx.c 2461]

??

[markus_doehr2]

dev_webdisp:

Wed Jun 11 07:11:29 2008

*** ERROR => Connection request from (-1/65535/0) to host: , service: failed (NIESERV_UNKNOWN)

*** ERROR => IcmConnClientRqCreate() failed (rc=-8)

*** ERROR => Could not connect to SAP Message Server at . URL=/msgserver/text/logon?version=1.2

*** ERROR => rc=-1, HTTP response code: 0

*** ERROR => see also OSS note 552286

the mapping is not correct - there´s neither a target host nor a target service configured...

check the given note.

Markus

[florian_royer]

We have 3 web dispatcher instances, installed on one single server, pointing at 3 different systems.

Telnet <wd1-url> -> works

Telnet <wd2-url> -> works

Telnet <wd3-url> -> fails (Web dispatcher (or maybe something else?) is not working properly)

[Former Member]

Hi,

Check if another software has stolen the port of your 3rd webdispatcher.

I already had this bad surprise....

Regards,

Olivier

[florian_royer]

Looking at ICM-Trace, I found the following:

• ERROR => NiBuFIConnect: non buffered connect pending after 5000ms (hdl 41;pc7.phoron.com:80) [nibuf.cpp 4611]

After this entry, there are only

connection from... to host... service: 1090 failed (NIEHOST_UNKNOWN)

entries.

Edited by: Florian Royer on Jun 16, 2008 5:00 PM

[prashb]

Hi,

The error message "Page cannot be disabled" indicates that your web page url request from Internet explorer is not hitting the webdispatcher.

Please check the connection to webdispatcher from your desktop(from the location where you are trying to open the URL) by pinging the webdispatcher host & URL, you can also test by doing telnet at the command prompt

desktop command> telnet "your URL name" 80

desktop command prompt> ping webdispatcherhostname

desktop command prompt> ping yourURLname.

regards

prashanth

[markus_doehr2]

Please check the logs of the webdispatcher.

Markus