HA Solution with J2EE and ABAP Stack

In the Planning Guide is written that if DB2 data sharing is used, each application server connects to only one database server at any one time. There is a mechanism called sysplex failover that automatically redirects an application server to another database server in case of a failure. Sysplex failover is currently not available for a SAP J2EE system.
Lets assume that DB2 Member A fails. The ABAP Stack A is doing automatically a reconnect to DB2 Member B. The J2EE Stack A isn't able to do this. So what happens now with the new incoming http requests over the WebDispatcher/ICM? The J2EE Server on A is basically running still well, because only DB2 member A is down.
a) Does the MSG server realize that DB2 Member A is no longer available and informs therefore the WebDispatcher that incoming requests should be send to J2EE Server on machine B?
b) Doesn't the MSG server realize this situation and therefore the WebDispatcher will furthermore load balance the requests between J2EE server A and J2EE server B?
Thanks for your help and clarification?
Roger

Sorry, I haven't had time to answer your questions and unfortunately won't have in the forseeable future.
I'm using read only, so I do not know about RW, except that AD requires SSL and probably some settings on the AD server as well as the account you are connecting with.
BTW. The answer to the original question is that it is not possible to mix ssl and non-ssl connections to LDAP
Regards
Dagfinn
Message was edited by: Dagfinn Parnas

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JAVA and ABAP stack support pakages

Hi,
I am new on installation of solution manager server.
I just install solution manager server EHP1 on windows 2003. Now I want to patch my server.
I have abap and java stack on my server. Can I use jspm to upload my new patches for both Java and ABAP stack or I should use SPAM for abap stack and jspm for java.
Thanks Reza

Hello Reza,
Just to clarify, Best practise is to update your kernel to the latest before you start patching in your system.
So download SAPEXE.SAR (Database independent kernel package), SAPEXEDB (Database dependent kernel package) and IGSEXE.SAR (IGS Package) from the SMP. kernel is dependent on your operating system and database and therefore make sure you download the right package otherwise you'll end up in messing up the system.
follow SAPnote # 19466 for help.
Once you are done with the kernel update then patch you Abap stack by SPAM and JAva stack by JSPM.
I hope that makes things clear.
Best Regards
NIraj

How is the interface between the Java Stack and ABAP stack is achieved?

How is the interface between the Java Stack and ABAP stack is achieved?..Please send me the answer to [email protected]

Hi,
By interface, I assume you mean the connection between the ABAP and the Java stacks in a double stack system.
The connection from Java to ABAP is through JCo connections defined in the WebDynpro section of the J2EE start page. So Java to ABAP requests are processed through JCo.
The connection from ABAP to Java is through RFC connections defined in TA SM59. The ABAP to Java requests are processed through RFC.
Refer https://dsd.esco-salt.com/StartPage/documents/integration/3.html for detailed explanation.
The UME can be maintained in either ABAP or in JAVA depending on the persistence.
Refer: http://help.sap.com/saphelp_nw70/helpdata/en/5b/5d2706ebc04e4d98036f2e1dcfd47d/frameset.htm
Check UME data source configuration.
Some quick FAQs can be found at:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ad47eb90-0201-0010-7cb2-ddfa5ed879ec
Hope this helps.
Best Regards,
Srividya.R

JAVA Stack and ABAP Stack not in Sync

Hi,
when i logged into the MI Server(7.0) gonr thru the following navigation :
Administration-->Mobile Infrastructure---->Mobile components
which i click on the search button i am getting the following error
"JAVA Stack and ABAP Stack not in Sync"
Already i redeployed the sapjra.rar, still i find the error unchanged.
Any help on this would be great........
Thanks,
vijay.

Hi
Refer this link
Need to Configure MI Server 7.0
As explained by veeraragavan in this link follow these steps
Following are in brief the roles required, just forward the same to your BASIS administrator.
In the ABAP Stack -Under Transaction SU01:
End User:
SAP_MI_SERVICE
Administrator / Critical Developers:
SAP_J2EE_ADMIN
SAP_MI_ADMIN
In the J2EE Stack - Under Identity Management:
End User:
No role required. You can give a role for display: SAP_JAVA_NWMOBILE_ADMIN_READONLY
Administrator / Critical Developers:
SAP_JAVA_NWMOBILE_ADMIN_SUPER
regards
Manohar
Edited by: Gouri Manohar Gadhamsetty on Jan 19, 2009 7:17 AM

Java and ABAP Stack

Hi All,
I am still not clear about role/function of java and abap stack in XI.
Can anybody explain?

Sireesha,
Tha ABAP stack consists of the Integration Server which in turn contains your Integration Engine and Business Process Engine.
The J2EE stack contains the Adapter Engine and your IR and ID run on the J2EE engine.
Most of XI pipelines happens in the ABAP stack.
All messsages picked by the Adapter Framework running on the J2EE engine are passed to the Integration Engine, which does the routing. The mapping program again gets executed on the Java stack and the rest of the pipeline servies are executed again on the ABAP stack and so on.
please go through links::
ABAP and JAVA in Netweaver stack
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/media/uuid/4aa47d27-0a01-0010-5db4-bb62dfc8c069?prtmode=navigate

Java and abap stack connection

Hello,
how to check connection b/w Java and ABAP stack.
I am getting below error :
SAP:Code area="MAPPING">JCO_SYSTEM_FAILURE</SAP:Code>
<SAP:P1>connection to partner 'localhost:0' broken / CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 t</SAP:P1>
We did some upgrades of kernel and jvm and started getting this error.
Please suggest

Hi,
Check this threads
JCO_SYSTEM_FAILURE
JCO_SYSTEM_FAILURE
JCO_SYSTEM_FAILURE . Pls help
Regards
Ramesh

Java Stack and ABAP Stack

Hi Experts,
i am now confused about these two stacks: Java Stack and ABAP Stack.
for IR objects, like DT, MT, SI, MM, SM, Action, Process Integration Scenario
for ID objects, like profile agreements, receiver determination, interface determination,
1. where are these objects stored in? Java or ABAP stack?
and i know Adapter Engine is run on JAVA Stack while Integration Engine is on ABAP Stack.
2. how do they call the objects stored in different stack during processing?

Hi,
1. where are these objects stored in? Java or ABAP stack?
These objects are basically developed on the JAVA stack, when they are activated their runtime version is created on ABAP stack, which you can check in SXI_CACHE transaction.
2. how do they call the objects stored in different stack during processing?
Runtime versions of these objects are responsible for the execution of the interfaces.
-Supriya.

Installing Java Stack and Abap Stack, same machine.

Hi all:
Does anybody installed Java Stack and Abap Stack on the same machine?
I installed ABAP stack first, and am trying now to install Java stack but it seems like at the end of the process, ABAP stack. (is not working now).
Any idea?

Not sure about installing both as I haven't tried either!
Anyway, in theory if the SIDs and instance numbers are completely different, then you should be OK. If you ahev the same SID or instance number, I can see possible problems,
Portal only runs on Java, so in theory any Java system will be OK. NWDW would be a good choice.

SMSY for ERP JAVA and ABAP Stack

Hi Folks - I have installed SAP ERP 6.0 EHP5 in one database called T12. Now there is a need for a Java stack and I have installed the Java stack in another database called J12.
I was able to define the ABAP stack on system landscape and MOPZ is working fine. However, I am not sure how I should go about the Java (J12) instance definidstion on SMSY.
I am using Somlam 7.1 on Oracle Linux system.
ABAP stack is on ERL 6.0 EHP5 and Java stack is Netweaver 7.0 EHP2.
J12 and T12 systems are connected via JCO.
SLD has been defined for both stacks and they are using the local SLD for the SolMan.
Your help is much appriciated.

Sunny - I checked the SLD and It is working fine. There were couple of issues that I fixed. Since I defined the Java system manually I delete it. Hopefully SLD will populate the definition.
In same note, Would it be possible that installing ERP java and ABAP stack on different hosts (stand alone) is causing this issue, especially they are using different Sid's?
I was reading SAP Note 1344564, It states
III.Some Main Instances include other Main Instances (E.g., in SAP
ERP 6.0, Main Instance SAP NW - Enterprise Portal includes SAP NW -
EP Core.). If the including Main Instance is installed, it's not
necessary to mark the included Main Instance(s) for relevance.
Is this mean in SMSY I do not have to define any product for the Java engine? When installing the Java, I had to create the product manually to be able to generate the installation key.
Your input is appreciated.
Edited by: kourosh Ghouchkhani on Nov 22, 2011 1:20 AM

Communicate link between Java and ABAP Stack for https

I have configured https in both the java and abap stacks (we have a double stack configuration). Due to our future configuration I have changed the hostnames to fully qualified hostnames per SAP instructions.
The question I have is does anyone know what RFC destinations or JCo settings I need to change to make https complete?
I have the problem where when I fire off the Integration Builder from within the ABAP stack (SXMB_IFR) I get a straight hostname (no domain name). Where is this configured? Any help is appreciated..

Check the exchange profile (Administratio tab in /rep/start/index.jsp page; you will have to enter it manually since it is throwing error from SXMB_IFR).
Regards,
Henrique.

How to check Integration Server Client and ABAP stack Client?

How to check Integration Server Client and ABAP stack Client? How to check,,pls tell in detailed steps???
Points would be awarded.
Arnab

hi,
Must be the server has different clients,one declared as application server ie abap stack client and the other declared as Integration server ie XI. U might be trying to open idx5 in application server client, in which idx5 exists but you cant open the screen even, that can be achieved through we02.
000 is the default client when XI server is installed .We can create separate clients on the system through sccl tcode.
As told we can find the client on sap logon screen.
Logon to sxmb_adm and check whether the client is declared as an application system(r/3) or Integration server(xi).Try idx5 in xi not r/3
Edited by: NagaDurga Nannapaneni on Aug 28, 2008 11:36 AM

Problems with MiniSAP-Installation JAVA and ABAP Stack

Hi,
I am a freelance SAP application developer had bought the book and SAP Interactive Forms by Adobe, in order to incorporate me into the topic. In chapter 3, the installation and configuration of an exercise Systemes is described so that you can perform the practical part. I downloaded at the website mentioned the installation files and have performed the installation as described in the book. I have also stopped the service as described in SAP DB WWW.
The installation of the JAVA section runs smoothly and is operational after the installation. The ABAP part crashes, however. According to my research, it is because the ABAP part is also intends to install a MAXDB, although the Java-part has realized this already. Anyone know what I need to do, so I only described as the application server of the ABAP part of getting installed and not again the MAXDB.
Regards

Hello Reza,
Just to clarify, Best practise is to update your kernel to the latest before you start patching in your system.
So download SAPEXE.SAR (Database independent kernel package), SAPEXEDB (Database dependent kernel package) and IGSEXE.SAR (IGS Package) from the SMP. kernel is dependent on your operating system and database and therefore make sure you download the right package otherwise you'll end up in messing up the system.
follow SAPnote # 19466 for help.
Once you are done with the kernel update then patch you Abap stack by SPAM and JAva stack by JSPM.
I hope that makes things clear.
Best Regards
NIraj

MYSAPSSO2 cookie format in J2ee and ABAP - NW7

Hello
I installed NW7 with ABAP + Java with system id DV1. I was able to configure the java and abap to issue ticket and to be accepted by other systems (DV2).
If I login to the DV1 abap host using webgui url(integrated ITS), I am getting the MYSAPSSO2 cookie in the browser IE. With this I am able to login to DV2 j2ee and also to ABAP.
If I login to DV1 j2ee engine using the portal link, I am not seeing the MYSAPSSO2 cookie in the browser, but seeing JSESSIONID and with it still I am able to login to DV2.
My question : Is the JSESSIONID exactly equal to MYSAPSSO2 ? If not how can I make the DV1 J2ee to issue MYSAPSSO2 cookie ? Thanks.
SAPLearner

Hi
I am able to test and able to login to the other j2ee or abap system. But still not able to see the MYSAPSSO2 cookie issued by EP j2ee.
DV1 - NW7 SP12 system ABAP + J2ee(with portal on it)
DV2 - NW7 SP12 system ABAP + J2ee(with BI java)
I have exported DV1's java and abap certificate to DV2, made it trusted and the the connection is working.
When I login to DV1 j2ee using the url http://<DV1fullhostname>.com:52200/irj/portal
and getting the below in my browser
SignOnDefault=<windows id>; JSESSIONID=(DV1host_DV1_22)ID2068173650DB0050916542928689590End; SAPPORTALSDB0=urn%253Acom.sapportals.appdesigner%253Aframework%2526isPersonalizeMode%3Dfalse; GWS_AUTO_LOGIN=FALSE; AbxUserLocale=en_US_STAFF; PortalAlias=portal; saplb_*=(DV1host_DV1_22)613943650
With this above cookie I am able to login to DV2 j2ee http://<DV2fullhostname>.com:52500/nwa
or abap http://<DV2fullhostname>.com:8025/sap/bc/gui/sap/its/webgui
without any issue. In my browser I do not see MYSAPSSO2 cookie. Why is that?
My login stack in j2ee is defined as below.
           1. Evaluate ticket
           2. Basic login modele
           3. Create ticket
At the same time if I login to DV1 abap http://<DV1fullhostname>.com:8022/sap/bc/gui/sap/its/webgui I can see the cookie MYSAPSSO2 in the browser and still able to login to DV2.
Dont understand why my DV1 j2ee is not issuing MYSAPSSO2 cookie and issueing JSESSIONID ?
Appreciate your reply
SAPLearner

PI 7.30 dual stack - different time in rwb, pimon and ABAP stack

Hi @all,
I am working with the client on a PI 7.30 dual stack system.
During monitoring of message processing I saw that there are differences in the time displayed while monitoring the processing of identical messages
e.g. channelmonitor (mdt/channelmonitorservlet and rwb) is 1 hour behind pimon
The time displayed in the ABAP Stack (Menu System - Status) differs also 2 hours ahead of pimon.
Are there java parameters to configure the used time zone and which could be reason for this behaviour.
For me it seems strange that there is a difference between to tools (channelmonitor and pimon) I was supposing are based on the same technical stack
Would be nice to have the same time throughout the whole system.
Any help appreciated.
Best regards
Jochen

Hi Jochen,
I did not found the option to change the time zone for pimon. Please refer the below wiki it might helpful
PiMon_TroubleshootingGuide - Technical Operations - SCN Wiki
PiMon_Frequently Asked Questions - Technical Operations - SCN Wiki
regards.
Harish

Communication between UME on the Java Stack and ABAP Stack

Please look for the thread
Unable to log on to IR, ID, SLD....
before going any further. This thread follows.
The prob in brief is that,
On XI homepage, I am not able to get into anything after I entered the user name and pw.
I have some roles SAP_XI_ADMINISTRATOR for my user. I have checked in SU01 on ABAP Stack.
I thought that the error could be that the UME on the Java Stack is not able to communicate with the ABAP stack.
Any direction on this would really help me.
Regards,
-Naveen.

Can any one help me in this.
-Naveen.

HA Solution with J2EE and ABAP Stack

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