Question Re: ERROR => Read info from message server failed: HTTP code 404 in Technology Q&A

ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 06:18:32 GMT

Dear,

Sap web-dispatcher is not connecting to back-end system, it showing the below error.

ERROR => Read info from PRD message server sapprdcluster.awqaf.gov.kw failed: HTTP code 404, see also SAP note 1528396

dev_webdisp log:

---------------------------------------------------

trc file: "dev_webdisp", trc level: 1, release: "745"

---------------------------------------------------

sysno 00

sid WDA

systemid 562 (PC with Windows NT)

relno 7450

patchlevel 0

patchno 14

intno 20151301

make multithreaded, Unicode, 64 bit, optimized

profile F:\usr\sap\WDA\SYS\profile\WDA_W00_AWQ-WEBDISP1

pid 3048

[Thr 572] Thu Jan 07 09:10:36 2016

[Thr 572] started security log to file ./dev_icm_sec

[Thr 572] SAP Web Dispatcher running on: AWQ-WEBDISP1.awqaf.gov.kw

[Thr 572] MtxInit: 30001 0 2

[Thr 572] ***LOG IM1=> IcmInit, Startup (SAP Web Dispatcher&AWQ-WEBDISP1.awqaf.gov.kw&3048&) [icxxman.c 1966]

[Thr 572] IcmInit: listening to admin port: 65000

[Thr 572] MPI: dynamic quotas disabled.

[Thr 572] MPI init: pipes=4000 buffers=2718 reserved=815 quota=10%

[Thr 572] CCMS: SemInMgt: Semaphore Management initialized by AlAttachShm_Ext.

[Thr 572] CCMS: SemInit: Semaphore 38 initialized by AlAttachShm_Ext.

[Thr 572] IcrIAddSingleSystem: Added backend system: SID=JPR, MSHOST=sapprtlclus.awqaf.gov.kw, MSPORT=8100

[Thr 572] IcrIAddSingleSystem: Added backend system: SID=PRD, MSHOST=sapprdcluster.awqaf.gov.kw, MSPORT=8100

[Thr 572] *** ERROR => ERROR Parameter icm/HTTP/redirect_0 defined multiple times. [icxxcheckcon 2697]

[Thr 572] *** ERROR => ERROR Parameter icm/HTTP/redirect_1 defined multiple times. [icxxcheckcon 2697]

[Thr 572] *** ERROR => ERROR Parameter icm/server_port_0 defined multiple times. [icxxcheckcon 2697]

[Thr 572] *** ERROR => ERROR Parameter icm/server_port_1 defined multiple times. [icxxcheckcon 2697]

[Thr 572] *** ERROR => ERROR Parameter "icm/HTTP/redirect_2" is set to invalid value "PREFIX=/, FROMPORT=https, FOR=sapprdcluster.awqaf.gov.kw, TO=/sap/bc/webdynpro/sap/HRESS_A_MENU, PROT=https, HOST=sapprdcluster": Unknown sub parameter name: FROMPORT [icxxcheckcon 2697]

[Thr 572] IcrCoreInitSessionTable: Session table initialized

[Thr 1876] Adding HttpRedirectHandler: PREFIX=/,TO=/irj/portal,HOST=sapweb.awqaf.gov.kw

[Thr 1876] HttpISubHandlerAdd: Added handler HttpRedirectHandler(00000000024CB540), slot=0, flags=4098) for /, active: 1, table 00000000024796C0

[Thr 1876] Adding HttpRedirectHandler: PREFIX=/,TO=/irj/portal,HOST=sapweb.awqaf.gov.kw

[Thr 1876] HttpISubHandlerAdd: Added handler HttpRedirectHandler(00000000022FA250), slot=1, flags=4098) for /, active: 1, table 00000000024796C0

[Thr 1876] Adding HttpRedirectHandler: PREFIX=/, FROMPORT=https, FOR=sapprdcluster.awqaf.gov.kw, TO=/sap/bc/webdynpro/sap/HRESS_A_MENU, PROT=https, HOST=sapprdcluster

[Thr 1876] *** WARNING => IcmParseSubParam: unknown subparam "https" for parameter: PREFIX=/, FROMPORT=https, FOR=sapprdcluster.awqaf.gov.kw, TO=/sap/bc/webdynpro/sap/HRESS_A_MENU, PROT=https, HOST=sapprdcluster [icxxpara.c 644]

[Thr 1876] HttpISubHandlerAdd: Added handler HttpRedirectHandler(00000000022FA2D0), slot=2, flags=4098) for /, active: 1, table 00000000024796C0

[Thr 1876] Adding HttpAdminHandler: PREFIX=/sap/wdisp/admin,DOCROOT=F:\usr\sap\WDA\W00\data\icmandir,AUTHFILE=F:\usr\sap\WDA\SYS\global\security\data\icmauth.txt

[Thr 1876] HttpExtractArchive: files from archive F:\usr\sap\WDA\SYS\exe\uc\NTAMD64/wdispadmin.SAR in directory F:/usr/sap/WDA/W00/data/icmandir are up to date

[Thr 1876] HttpISubHandlerAdd: Added handler HttpAdminHandler(00000000024798F0), slot=3, flags=45061) for /sap/wdisp/admin, active: 1, table 00000000024796C0

[Thr 1876] Adding HttpModHandler: PREFIX=/

[Thr 1876] CsiInit(): Initializing the Content Scan Interface

[Thr 1876] PC with Windows NT (mt,unicode,SAP_CHAR/size_t/void* = 16/64/64)

[Thr 1876] CsiInit(): CSA_LIB = "F:\usr\sap\WDA\SYS\exe\uc\NTAMD64\sapcsa.dll"

[Thr 1876] HttpISubHandlerAdd: Added handler HttpModHandler(0000000002479970), slot=4, flags=12293) for /, active: 1, table 00000000024796C0

[Thr 1876] Thu Jan 07 09:10:36 2016

[Thr 1876] Adding HttpAuthHandler: PREFIX=/,FILTER=SAP

[Thr 1876] HttpISubHandlerAdd: Added handler HttpAuthHandler(00000000078B5E50), slot=5, flags=12293) for /, active: 1, table 00000000024796C0

[Thr 1876] HttpISubHandlerAdd: Added handler HttpWebDispHandler(0000000017553470), slot=6, flags=1060869) for /, active: 1, table 00000000024796C0

[Thr 1876] WebSocketPlugInInit: WebSocket Plugin initialized

[Thr 1876] IcmAddHiddenService: Hidden service WEBSOCKETS started

[Thr 1876] =================================================

[Thr 1876] = SSL Initialization platform tag=(ntamd64-msc18)

[Thr 1876] = (745_REL,Oct 12 2015,mt,ascii-uc,SAP_UC/size_t/void* = 16/64/64)

[Thr 1876] DIR_INSTANCE="F:\usr\sap\WDA\W00"

[Thr 1876] DIR_LIBRARY="F:\usr\sap\WDA\SYS\exe\uc\NTAMD64"

[Thr 1876] ssl/ssl_lib="F:\usr\sap\WDA\SYS\exe\uc\NTAMD64\sapcrypto.dll"

[Thr 1876] profile param "ssl/ssl_lib" = "F:\usr\sap\WDA\SYS\exe\uc\NTAMD64\sapcrypto.dll"

[Thr 1876] resulting Filename = "F:\usr\sap\WDA\SYS\exe\uc\NTAMD64\sapcrypto.dll"

[Thr 1876] = disabled FIPS 140-2 crypto kernel

[Thr 1876] = found CommonCryptoLib (SAPCRYPTOLIB) Version 8.4.41 pl40 (Aug 18 2015) MT-safe

[Thr 1876] = current UserID: AWQAF\SAPServiceWDA

[Thr 1876] = found SECUDIR environment variable

[Thr 1876] = using SECUDIR=F:\usr\sap\WDA\W00\sec

[Thr 1876] ssl/ciphersuites="HIGH:MEDIUM:+e3DES:!aNULL"

[Thr 1876] ssl/client_ciphersuites="HIGH:MEDIUM:+e3DES:!aNULL"

[Thr 1876] = secussl_Create_SSL_CTX(): PSE "F:\usr\sap\WDA\W00\sec\SAPSSLC.pse" not found,

[Thr 1876] = using PSE "F:\usr\sap\WDA\W00\sec\SAPSSLS.pse" as fallback

[Thr 1876] = secussl_Create_SSL_CTX(): PSE "F:\usr\sap\WDA\W00\sec\SAPSSLA.pse" not found,

[Thr 1876] = using PSE "F:\usr\sap\WDA\W00\sec\SAPSSLS.pse" as fallback

[Thr 1876] ******** Warning ********

[Thr 1876] *** No SSL-client PSE "SAPSSLC.pse" available

[Thr 1876] *** -- this might limit SSL-client side connectivity

[Thr 1876] ********

[Thr 1876] = Success -- SapCryptoLib SSL ready!

[Thr 1876] =================================================

[Thr 1876]

[Thr 1876] Started service HOST=sapweb.awqaf.gov.kw,PORT=443,PROT=HTTPS,TIMEOUT=60,PROCTIMEOUT=60,VCLIENT=1

[Thr 1876] SSL settings: verify_client: 1, cache_size: -1, cache_lifetime: -1, credfile: SAPSSLS.pse, ciphers: default

[Thr 1876] IcmAddHiddenService: Hidden service WEBSOCKET started

[Thr 1876] Started service HOST=sapweb.awqaf.gov.kw,PORT=80,PROT=HTTP,TIMEOUT=60,PROCTIMEOUT=60

[Thr 572] IcmCreateWorkerThreads: created worker thread 0

[Thr 572] IcmCreateWorkerThreads: created worker thread 1

[Thr 572] IcmCreateWorkerThreads: created worker thread 2

[Thr 572] IcmCreateWorkerThreads: created worker thread 3

[Thr 572] IcmCreateWorkerThreads: created worker thread 4

[Thr 572] IcmCreateWorkerThreads: created worker thread 5

[Thr 572] IcmCreateWorkerThreads: created worker thread 6

[Thr 572] Thu Jan 07 09:10:36 2016

[Thr 572] IcmCreateWorkerThreads: created worker thread 7

[Thr 572] IcmCreateWorkerThreads: created worker thread 8

[Thr 572] IcmCreateWorkerThreads: created worker thread 9

[Thr 2820] IcmWatchDogThread: watchdog started

[Thr 1488] Thu Jan 07 09:10:38 2016

[Thr 1488] *** ERROR => Read info from PRD message server sapprdcluster.awqaf.gov.kw failed: HTTP code 404, see also SAP note 1528396 [icrxx.c 4205]

[Thr 572] *** SAP Web Dispatcher up and operational (pid: 3048, HTTP: 80, HTTPS: 443) ***

[Thr 572] ***LOG IM3=> SAP Web Dispatcher, Startup (SAP Web Dispatcher&3048&) [IoEngine.cpp 74]

[Thr 1924] Thu Jan 07 09:11:03 2016

[Thr 1924] *** ERROR => Read info from PRD message server sapprdcluster.awqaf.gov.kw failed: HTTP code 404, see also SAP note 1528396 [icrxx.c 4205]

Re: ERROR => Read info from message server failed: HTTP code 404

Former Member — Thu, 07 Jan 2016 09:02:00 GMT

check below errors:


[Thr 572] *** ERROR => ERROR Parameter icm/HTTP/redirect_0 defined multiple times. [icxxcheckcon 2697]
[Thr 572] *** ERROR => ERROR Parameter icm/HTTP/redirect_1 defined multiple times. [icxxcheckcon 2697]
[Thr 572] *** ERROR => ERROR Parameter icm/server_port_0 defined multiple times. [icxxcheckcon 2697]
[Thr 572] *** ERROR => ERROR Parameter icm/server_port_1 defined multiple times. [icxxcheckcon 2697]
[Thr 572] *** ERROR => ERROR Parameter "icm/HTTP/redirect_2" is set to invalid value "PREFIX=/, FROMPORT=https, FOR=sapprdcluster.awqaf.gov.kw,

Re: ERROR => Read info from message server failed: HTTP code 404

Former Member — Thu, 07 Jan 2016 11:27:49 GMT

Hi,

Please check this thread

SAP Webdispatcher error | SCN

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 11:35:19 GMT

Hello,

Although you should definitely check the errors pointed by Sunil, they are not related to the Message Server 404 error.

Have you read the SAP note 1528396, as suggested by the error message itself?

Is your "wdisp/system_X" parameter pointing to the correct Message Server host and HTTP(S) port?

Regards,

Isaías

Re: ERROR => Read info from message server failed: HTTP code 404

Former Member — Thu, 07 Jan 2016 11:57:17 GMT

Hi Prathish,

Can you please paste the instance profile of web dispatcher.

With Regards

Ashutosh Chaturvedi

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 15:29:44 GMT

Dear Ashutosh,

Below the profile parameter:

SAPSYSTEMNAME = WDA

SAPGLOBALHOST = AWQ-WEBDISP1

SAPSYSTEM = 00

INSTANCE_NAME = W00

DIR_CT_RUN = $(DIR_EXE_ROOT)\$(OS_UNICODE)\NTAMD64

DIR_EXECUTABLE = $(DIR_CT_RUN)

DIR_PROFILE = $(DIR_INSTALL)\profile

_PF = $(DIR_PROFILE)\WDA_W00_AWQ-WEBDISP1

SETENV_00 = PATH=$(DIR_EXECUTABLE);%PATH%

#-----------------------------------------------------------------------

# Back-end system configuration

#-----------------------------------------------------------------------

wdisp/system_0 = SID=JPR, MSHOST=sapprtlclus.awqaf.gov.kw, MSPORT=8100

wdisp/system_1 = SID=PRD, MSHOST=sapprdcluster.awqaf.gov.kw, MSPORT=8100

#-----------------------------------------------------------------------

# Configuration of maximum number of concurrent connections

#-----------------------------------------------------------------------

icm/max_conn = 2000

#-----------------------------------------------------------------------

# SAP Web Dispatcher Ports

#-----------------------------------------------------------------------

icm/server_port_0 = PROT=HTTPS,PORT=443

icm/server_port_1 = PROT=HTTP,PORT=8005

#-----------------------------------------------------------------------

# SAP Web Dispatcher Administration

#-----------------------------------------------------------------------

icm/HTTP/admin_0 = PREFIX=/sap/wdisp/admin,DOCROOT=$(DIR_DATA)$(DIR_SEP)icmandir,AUTHFILE=$(icm/authfile)

#-----------------------------------------------------------------------

# Start webdispatcher

#-----------------------------------------------------------------------

_WD = $(DIR_EXECUTABLE)\sapwebdisp$(FT_EXE)

Restart_Program_00 = local $(_WD) pf=$(_PF)

SETENV_01 = SECUDIR=$(DIR_INSTANCE)/sec

#-----------------------------------------------------------------------

icm/log_level = 1

icm/HTTP/redirect_0 = PREFIX=/, FROMPORT=http, FOR=sapprtlclus, TO=/irj/portal, PROT=http, HOST=sapprtlclus

icm/HTTP/redirect_1 = PREFIX=/, FROMPORT=http, FOR=sapprdcluster.awqaf.gov.kw, TO=/sap/bc/webdynpro/sap/HRESS_A_MENU, PROT=https, HOST=sapprdcluster

icm/HTTP/redirect_2 = PREFIX=/, FROMPORT=https, FOR=sapprdcluster.awqaf.gov.kw, TO=/sap/bc/webdynpro/sap/HRESS_A_MENU, PROT=https, HOST=sapprdcluster

icm/server_port_0 = PROT=HTTPS,PORT=443,HOST=sapweb.awqaf.gov.kw

icm/HTTP/redirect_0 = PREFIX=/,TO=/irj/portal,HOST=sapweb.awqaf.gov.kw

icm/server_port_0 = PROT=HTTP,PORT=80,HOST=sapweb.awqaf.gov.kw

icm/HTTP/redirect_1 = PREFIX=/,TO=/irj/portal,HOST=sapweb.awqaf.gov.kw

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 15:34:56 GMT

Dear Isaias,

My production is in cluster environment, and i can see the MSPORT is 8100 as below screen.

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 15:41:48 GMT

Dear Prathish,

The wdisp/system_X parameters seem to be ok...

Are you able to open the following URL at your computer?

http://sapprdcluster.awqaf.gov.kw:8100/msgserver/text/logon?version=1.2

And from the Web Dispatcher server?

Regards,

Isaías

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 15:57:28 GMT

Dear Isaias,

Am getting error as below:

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 16:11:47 GMT

Hello,

This is strange... I agree that the log states that the Message Server opened the HTTP port 8100.

But as you can see, it is an ABAP instance that is responding requests made to that port.

Did you configure the ICM to also use the port 8100?

Either that, or the hostname sapprdcluster.awqaf.gov.kw is not pointing to the Message Server host, but to an ABAP host.

Confirm that the hostname is pointing to the correct server.

Then logon to the ABAP instance and access the transaction SMICM, menu goto -> services.

If you have an HTTP port 8100 there as well, you need to change it (or change the HTTP port of the Message Server...).

Regards,

Isaías

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 16:19:42 GMT

Dear Isaias,

You said is right http is pointing to 8100, If i am changing the http port is there any issue for backend and frontend system.

Cluster parameter:

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 17:08:28 GMT

Since the end users would perform the access though the Web Dispatcher, there would be no issues in changing the ICM port.

You can use RZ10 to change the port at the profile, and then use SMICM to change it dynamically, avoiding the need to restart the instance (notice that changes made through SMICM will be lost when SAP is restarted; that is why you also need to adjust the parameter through RZ10).

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 17:09:18 GMT

Forgot to mention that you might need to restart the Message Server... To remove any "garbage" that could be left due to the port conflict (two processes using the same port, at the same time).

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Thu, 07 Jan 2016 17:42:03 GMT

Dear Isaias,

If i am adding an new port ms/port for message server ex:8001 in backend server, it would affect backend frontend connectivity?

Users are still using server name to access sap portal as below:

http://hostname:50100/irj/portal

If am adding a ms/port through RZ10, the issue will solve?

Re: ERROR => Read info from message server failed: HTTP code 404

Isaias_SAP — Thu, 07 Jan 2016 18:32:06 GMT

Hello,

Instead of changing the ICM port, you can change the ms/port.

Then, adjust the MSPORT argument at the parameter "wdisp/system_0", at the Web Dispatcher profile.

Your end users should perform the access through the Web Dispatcher only, not through the hostname/port of the backend systems.

Otherwise, why would you install a Web Dispatcher?

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Fri, 08 Jan 2016 10:05:01 GMT

Dear Isaias,

I changed the parameter as below:

SE38 : RSM51000_CHANGE_PARAMETER

How can i set the parameter permanently in ABAP server?

While am opening the site in Internet Explorer am getting the below message:

If am clicking "Yes" the backend will not connect, But if "No", then backend will work fine, should i have to create a "https" port for ABAP system?

Re: ERROR => Read info from message server failed: HTTP code 404

Former Member — Fri, 08 Jan 2016 10:39:32 GMT

Hello,

did you checked your webdispatcher Profile with sapwebdisp Programm? the result of the check will help you to investigate the reason why your webdispatcher can not reach the backend.

on the other Hand you have defined the icm/Server_port_0 twice, fix this and run the check with sapwebdisp

best regards

Re: ERROR => Read info from message server failed: HTTP code 404

former_member227283 — Fri, 08 Jan 2016 12:09:20 GMT

Dear Prathish,

Is your ASCS instance with cluster hostname and Primary application server with physical host name running on same host ?

Also can you share the instance ASCS instance and profile parameter on SDN please.

Regards,

Anil Bhandary

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Fri, 08 Jan 2016 15:56:38 GMT

Anil,

Parameter is as blow:

Re: ERROR => Read info from message server failed: HTTP code 404

former_member183788 — Fri, 08 Jan 2016 15:59:50 GMT

Snitily,

I am able to connect to back-end now said by Isaias, My issue is while connecting backend the IE ask whether to connect https or not, if am slicking on https the back-end will not connect, but if am clicking "No" the back-end system will connect through web-dispatcher without any issue.