web dispatcher error

[Former Member]

Hi All,

I am seeing below error after upgrading web dispatcher to 745 from 721. os is linux. please can someone guide me.

[Thr 140606531098368] Wed Feb 17 06:30:10 2016

[Thr 140606531098368] *** ERROR => no valid HTTP destination server available for system '000' using logon group '!J2EE' rc=4 {0000000a} [http_route.c 3724]

[Thr 140606531098368] *** WARNING => redirect failed request to foreign destination '!ALL' [http_route.c 3750]

[Thr 140606531098368] *** WARNING => original destination was '!J2EE' [http_route.c 3753]

[Thr 140606531098368] *** ERROR => no valid HTTP destination server available for system '000' using logon group '!ALL' rc=4 {0000000a} [http_route.c 3724]

[Thr 140606531098368] *** WARNING => redirect failed request to foreign destination '!ALL' [http_route.c 3750]

[Thr 140606531098368] *** WARNING => original destination was '!ALL' [http_route.c 3753]

[Thr 140606527399680] Wed Feb 17 06:30:28 2016

[Thr 140606527399680] *** ERROR => no valid HTTP destination server available for system '000' using logon group '!J2EE' rc=4 {00000010} [http_route.c 3724]

[Thr 140606527399680] *** WARNING => redirect failed request to foreign destination '!ALL' [http_route.c 3750]

[Thr 140606527399680] *** WARNING => original destination was '!J2EE' [http_route.c 3753]

[Thr 140606527399680] *** ERROR => no valid HTTP destination server available for system '000' using logon group '!ALL' rc=4 {00000010} [http_route.c 3724]

[Thr 140606527399680] *** WARNING => redirect failed request to foreign destination '!ALL' [http_route.c 3750]

[Thr 140606527399680] *** WARNING => original destination was '!ALL' [http_route.c 3753]

Thanks,
Ranjith

[Sriram2009 · Accepted solution]

Hi Ranjith.

You can refer the SAP KBA with cause number 2

1911913 - 500 Dispatching error thru web dispatcher

Regards

SS

[Former Member · Accepted solution]

Hi Sriram,

I did check this note but the help.sap link for java is not working.

THanks,

Ranjith

[Sriram2009 · Accepted solution]

Hi

Could you share in detail?

BR

SS

[Former Member · Accepted solution]

Hi SS,

please let me know wat to share in detail.

thanks,
Ranjith

[Sriram2009 · Accepted solution]

Hi Rajith.

1.  Are you getting any error message? If possible restart the system and update the latest log.

2. You can refer the SAP note for basic parameters wabdispatcher.

538405 - SAP Web Dispatcher: composite note

3. You can refer the Upgrade guide from the follow the SAP Note

908097 - SAP Web Dispatcher: Release, Installation, Patches, Documentation

Regards

SS

[Former Member · Accepted solution]

Hi All,

I have raised SAP oss, will keep all posted.

thanks,
Ranjith

[Former Member · Accepted solution]

Hi Ranjith,

Please add the below parameter in the profile file for web-dispatcher.

icm/HTTP/auth_0 = PREFIX=/sap/wdisp/admin

Give a restart and check if that sovles the issue.

Regards,

Prithviraj.

[isaias_freitas · Accepted solution]

Spoiler alert: setting "icm/HTTP/auth_0 = PREFIX=/sap/wdisp/admin" will not solve the issue.

If the parameter is not explicitly set, the Web Dispatcher uses an internal default value.

This parameter is already active and don't need to be changed.

Well, if Ranjith has already opened an SAP incident, I guess he can work on the issue there.

Anyway, the profile looks correct and my next request would have been to set the parameter "rdisp/TRACE = 2", restart the Web Dispatcher, simulate the issue, and then copy the Web Dispatcher trace file (dev_webdisp).

Ranjith could then attach the trace file to this thread, remove the parameter "rdisp/TRACE" from the profile and restart the Web Dispatcher again (in order to stop the detailed tracing).

Regards,

Isaías

[Former Member · Accepted solution]

Hi Isaias,

please find attached trace file after increasing the trace level to 2.

Thanks,
Ranjith

dev_webdisp.txt.zip

[isaias_freitas · Accepted solution]

Hello Ranjith,

The parameter "wdisp/ssl_encrypt" is set to zero.

This means that the Web Dispatcher should deccrypt the request and forward it as HTTP to the backend.

However, the backend system does not have an HTTP port open.

Setting the parameter "wdisp/ssl_encrypt = 2" will make the Web Dispatcher decrypt the request and them re-encrypt it, sending it as HTTPS to the backend as well.

This should fix the issue.

The SAP KBA 2160678 might be of assistance as well, depending on what happens next.

Regards,

Isaías

[Former Member · Accepted solution]

Hi Isaias,

setting this parameter didnt help either. very odd when the same setup is working in other systems.

Thanks,
Ranjith

[isaias_freitas · Accepted solution]

Hello Ranjith,

Is any error being logged at the Web Dispatcher trace file, every time you try to access a backend system through it?

Post the error entries so we can assist you further .

Regards,

Isaías

[Former Member · Accepted solution]

Hi All,

Thank you for the support. the issue was fixed finally by creating logon groups !J2EE and !ALL in NWA following below links.

Determining the Server Group - Application Server Infrastructure - SAP Library

https://help.sap.com/saphelp_nw73/helpdata/en/4a/954cac17335ff9e10000000a421937/content.htm

[isaias_freitas · Accepted solution]

hmmm, these groups should be automatically created by the Web Dispatcher...

[isaias_freitas]

Hello,

I believe that you have confirmed that the backend system was available, right?

(it does not hurt to ask )

If you need further assistance, after reading the WIKI sent by Raquel, please attach the Web Dispatcher profile to this thread.

In addition, clarify what are its backend systems (e.g., is it a Portal, an ABAP only system, a dual-stack system, etc.).

Regards,

Isaías

[Former Member]

Hi Isaias,

backend is portal 7.3 (java stack). below is the web dispatcher profile.

when i use old version 7.20 web disp, it is working. the issue is with latest 7.45 web disp.

# unique instance number

SAPSYSTEM = 80

# add default directory settings

DIR_EXECUTABLE = .

DIR_INSTANCE = .

# Accessibility of Message Servers

rdisp/mshost = xxx

ms/http_port = 8123

# SAP Web Dispatcher Parameter

wdisp/auto_refresh = 25

wdisp/max_servers = 100

wdisp/shm_attach_mode = 6

# configuration for large scenario

icm/max_conn      = 16384

icm/max_sockets   = 16384

icm/req_queue_len = 6000

icm/min_threads   = 100

icm/max_threads   = 250

mpi/total_size_MB = 500

mpi/max_pipes     = 21000

#maximum number of concurrent connections to one server

wdisp/HTTP/max_pooled_con = 2000

wdisp/HTTPS/max_pooled_con = 2000

# SAP Web Dispatcher Ports

icm/server_port_0 = PROT=HTTP,PORT=8080

icm/server_port_1 = PROT=HTTPS,PORT=8443,TIMEOUT=1800,PROCTIMEOUT=1800

# SAP Web Dispatcher Web Administration

icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=./admin,AUTHFILE=icmauth.txt

wdisp/enable_j2ee_groups = FALSE

[raquel_gomez]

Hi Ranjith,

Please check below wiki, which may help on resolve the issue you're having:
http://wiki.scn.sap.com/wiki/display/SI/Error+code+for+no+valid+destination+server+available+when+ac...

Regards,
Raquel