Ep 6.0 single backend multiple clients

Dear all,
system details: ecc 5.0 unicode sap aba 16, basis 16,appl 11,hr 19+MSSQL 2000 with collation bin2 (SP4) and windows 2003. EP 6.0 SP9 WebAS 6.40 sr1
First i installed portal with rapid installer 2.5.1 but it connects only with client 000. i tried to give client 100 at installation time but it was not accepted.
Then i installed with netweaver 04 dvd. it accepted client 100.
now my company want that portal should be connected to multiple client with backend system as my backend system is development and they will check first in a sandbox client and then with user testing in a test client.
How to do this.
Secondly, in user management>role "page cannot be displayed" error and this error is coming only in this page.
One thing i should tell you that when i installed with rapid installer it was working fine with client 000 but when i changed the client in system landscape i was able to logon no tab displayed. the message was that the user may not have proper authorizations. may be something to do with portal roles. I want to know how can i transport these portal roles or user config to other clients.
in WP3R, it says no object found.
Can anyone help
Thanks
Imran Hasware

HI Imran,
u used User management with ABAP system than u have to assign the role to user from R3 system side. after assignning a role u start the J2EE server.
check the follwoing
http://help.sap.com/saphelp_nw04/helpdata/en/49/9dd53f779c4e21e10000000a1550b0/content.htm
regards,
kaushal

Similar Messages

What are the possible approches for hosting a product(custom SP application) for multiple clients on a single SharePoint farm?

We have a product which is a custom application based on SharePoint Foundation 2010. Right now, for each of our client we create a dedicated server and host the application in the standalone deployment. Now, the requirement is to host multiple clients in a
farm deployment.
Challenges are: 1. The product has same name for the wsp that is deployed on different client servers as of now. How to distinguish for different clients on same farm
Currently the product specific css and jquery is in 14 hive. These files will be of difefrent versions for different client. How to segregate that?
How many web applications is recommend to be created in a single SPF 2010 farm? What are the challenges?
There are a couple of DBs created in SQL for the application. What is the best way to separate those for the client?
Essentially its the same product but with different versions for each client that we want to deploy in a single farm. What is the best practice to tackle this?

For the most part, these are not SharePoint questions per se, but product-specific questions you'd better ask the vendor about. To get in some more detail:
1. It totally depends on the scope of the solution. If its global, then you're out of luck and any changes you make affect all instances that use it. Better ask the vendor about it.
2. Not that many, let's say < 10, assuming you're web applications have separate application pools. Check out http://technet.microsoft.com/en-us/library/cc262787(v=office.14).aspx#WebApplication for
more info.
3. This is very application specific and really should be answered by the vendor. Not related to SharePoint at all.
4. Again, really depends on the product so better ask the vendor.
Good luck!
Kind regards,
Margriet Bruggeman
Lois & Clark IT Services
web site: http://www.loisandclark.eu
blog: http://www.sharepointdragons.com

How can I connect multiple clients to a single client ?

I am currently developing an instant messaging program.I created a server and connected multiple clients to it by using thread logic.However I do not know how to connect multiple client to a single client.
What shall I do for that?Does anybody know a good tutorial or sample program?Or shall anybody explain me what I shall do for building the Instant Messaging part of my chat program?
Thank u in advance.

You may use UDP multicast socket. But since you are using the UDP protocol you might risk losing the data that you send since UDP does not guarantee the safe transfer of data.
Alternately, you might create a server that allows multiple client to connect to it whose connection Socket objects are then stored in a Vector <Socket> object. The server then sends back data to the connected client about the other clients connected to it. Now when the client wants to send data (like an IM) to another connected client, it has to send a request to the server specifying the client login name and the server in turn streams that particular client's Address and Port to the requesting client. The requesting client then initiates the connection with the other client and then starts a conversation. One more thing, when the client communicates it needs to send information to the server like the name by which it likes to be referenced. In this scenario the server acts like a central repository for clients to query the existence of other clients in the chat room. Each client here runs a thread that listens to incoming connections and when a connection is established, may be opens a IM window or something.
The third option is to make the server to relay the information from one client to another. Like say, I'm connected to whoopy server and i want to send "Hello" to jackson, then i send the message (ie, Hello) along with the name of the client to which i wish to send it to (ie, jackson). The server then performs a lookup in its Vector <Socket> object and then initiates a connection with jackson and sends the information. However, this method is pretty costly in that you will be wasting a lot of processing behind the server.
--Subhankar
P.s. If you stumble upon any other brilliant ideas let me know.

Multiple clients with same account on a single IMAP server

Hi,
I am connecting to a IMAP server using same account but from 2 different machines. From one machine a mark a message as SEEN=FALSE. But on the second machine, the flag will still be TRUE.
Is there any way to co-ordinate between multiple clients so that all the clients are in sync.
Regards,
Nitin.

I was able to resolve the problem using addMessageCountListener and messagesAdded method, as suggested by you.
I am now facing another problem. Whenever a new message is received, code inside messagesAdded method gets executed. Here I am trying to spawn another thread and do some stuff. But this new thread is not starting at all. It goes into some JavaMail:EventQueue and does nothing. What is the concept of EventQueue here? How can I get this new thread executed?
Also will there be synchronization problems in messagesAdded method. Say I received a message and I am processing it in the messagesAdded method. In the mean time another message comes up. How will this behave.

Multiple SRMs connected to single backend

Quick question, is it possible to connect 2 SRM systems to a single backend?
Thanks

I think it's possible, but why do it?
To think about:
1. Middleware settings, each SRM system should have it's own user (replicating material groups, materials and services)
2. RFC connections to each system
3. Different number ranges for each SRM system for generated PO's, Reqs and so on
4. What scenario?
5. Vendor replication
6. Just follow the configuration guide for a single system
Regards,
Robin

Multiple clients in CRM Dev/QA system

Hi All-
I've seen in various places that it is recommended to only have one client in a CRM system. I have worked at many sites that have several CRM clients in a system without issues.
Can any one point me to an SAP Note or document that recommends only one client per CRM system? I realize that there are possible issues with the CRM pricing and cross-client customizing downloads but these can usually be worked around. What other issues are a concern?
Any SAP document about this would be great.
Thanks!
Tim

Tim,
Unless you are going to have multiple back ends or some business scenario that requires multiple clients in CRM Production, then don't do it in CRM Dev/QA.
The reason why don't do multiple clients in a CRM system that is connected to an ERP backend is the following:
CRM configuration is dependent on downloaded configuration from the ERP system.
A normal CRM system should only have one backend connection.
Now why would you want want to have a Dev and QA system that does not reflect how your production system works. In fact in the case of CRM you are making more work and creating systems that do not accurately mirror production.
The whole gold client concept in CRM is honestly a bad idea when you have single ERP backend, because it just causes more work for people and it my opinion its a way of people trying to stay busy than add real value.
Now if you really want to keep busy maintaining middleware and keeping things in sync, go for multiple clients in Dev/QA. The best part is when something in Prod breaks you won't have any environment that mirrors Prod correctly from a middleware perspective. In my opinion if you are that concerned about configuration and master data mixing then you probably need a CRM sandbox instance to try things out.
Take care,
Stephen

How to use multiple clients within JCO?

Hi,
I'm pretty new to configuring Web Dynpro's with it's JCO connections. I have the following question.
We are using one portal (SAP EP 6.0_640 SP15) and one R/3 system (SAP ECC 5.0) with multiple clients (multiple customers who are all using the same portal).
Do I have to deploy a web dynpro for each client and maintain it's JCO connection for each client?
Or is there another way how I can set this up?
Thanks in advance.
Kind regards,
Dave Arends

Hi Dave,
Do I have to deploy a web dynpro for each client and maintain it's JCO connection for each client?
Or is there another way how I can set this up?
You dont need to deploy a web dynpro for each client . You can use same JCO connection for multiple User ID's ( multiple Clients mean multiple user ID's on the same portal ).
If this is the case then single JCo connection is enough to pull data from R/3 and show on portal page .
Thanks,
Nanda

How to control one server with multiple clients via TCP/IP

I am wanting to control a single server with multiple clients. Only one client would be active at a time, so there would be no conflict. I want to use TCP/IP. So far, I have programmed a cluster that passes data back to the server with no problems. The challenge come in when a second client is added to the mix. I have't been able to figure out how to turn each client on and send the appropriate data and then turn it off so it doesn't keep sending the same data to the server.
Here are the things that I have considered and did some preliminary testing, but don't really know how to impliment:
1. Send a numeric on the front of the cluster packet that tells the server that data is on the way.
2. Send a boolean on the front of the cluster packet to somehow turn the server TCP/IP on.
The problem I have found is that LabVIEW TCP/IP doesn't like to be turned on and off. If it doesn't get the data it expects, it goes into a reset mode and that kills the response time.
Any help?

You should consider implementing a set of simple one-byte commands that can be sent back and forth between the Server and the Clients. You can base all of these ideas off the example in the Example Finder under Networking >> TCP and UDP called Multiple Connections - Server.
You will have two loops in the server VI: one to wait for new connections, and one to send and receive data from the existing connections. For instance, after one of the clients connects, it can request control of the server to send data to it by sending the character "R" for request. Every time the send/receive loop of the Server executes, the first thing it can do is to check all the existing connections to see if any of the clients have sent a control request ("R"). If so, it will create a buffer (array) of control requests. This could be in the form of Connection IDs or indexes in the array for a particular Connection ID. Your choice.
After the Server receives a request for contol, if it is not already under control by another client, then it can send a response to the first client on the control request list. For instance, the server could send the first client a "S" command for send. Note that after the clients send their control request, they should execute a TCP Read and wait indefinitely for the server to respond with the one-byte "S" command. Then, once the client in control is finished sending data to the server, it could send the character "X" telling the Server to release it from control.
The example I mentioned above already does a similar thing. Note how when a client wants to disconnect, they send the letter "Q". You can see this in the Multiple Connections - Client VI. The Server then checks each individual connection to see if it's received this one-byte command, and if it has, it closes the connection to the client. This is what you would want to implement, but instead of having just one command, you'll have to distinguish between a few and build up a buffer of control requests.
Finally, if a client does decide to disconnect in your application, they could send the command "Q" just like the example above. At this point, close the connection and remove that Connection ID from the array of connections. You will also have to handle the case that this client was in the request control waiting line when it disconnected, in which case you need to delete it from that array as well.
This will definitely work for you, but it will take some work. Best of luck!
Jarrod S.
National Instruments

Saving string from multiple clients on a server data structue

I have a server which receives updates from multiple clients ( in this example, football scores which are updated periodically by the clients.)
When the server receives the scores it needs to store them and at certain time intervals send the complete list of scores to multiple terminals at various locations.
I am approaching this task in stages...
stage 1.
..create the clients and server ...test the clients can send the data and the server can receive the data and output to screen..
this is completed
stage 2...
a/ on the server side store the received scores in a data structure (ArrayList<String> is what I'm thinking.)
b/ periodically output all scores to the screen (maybe every 30 seconds) and empty the ArrayList..am looking at the Timer class for this part..
stage 3
create the monitors and output scores to monitors periodically..
======================================================
right now I'm at stage 2a ie trying to store the received scores in a data structure.
i've created a method saveScore in the StoreScore class which is called by the StoreScore run method...
The saveScore method creates an ArrayList and adds the score to it...
Question
does every thread create a new instance of storedScores and therefore the scores are stored in a multitude of data structures?
I think the answer is yes and if so then this is not the solution...
What I'm thinking is , as all scores can be outputted to the server screen via System.out.println, is there not a way of saving all these scores in a single data structure?
The code below is the server code..
any advice much appreciated....thank you
/*=============================================================== */
import java.io.*;
import java.net.*;
import java.util.*;
import java.util.concurrent.*;
class ScoresServer1{
final static int portNum = 1234; // any number > 1024
final static int numThreads = 10;
static ExecutorService pool;
public static void main(String[] args){
pool = Executors.newFixedThreadPool(numThreads);
System.out.println("Server running ...");
try{
ServerSocket servesock = new ServerSocket(portNum);
// for service requests on port
while (true){
// wait for a service request on port portNum
Socket socket = servesock.accept();
// submit request to pool
pool.submit(new StoreScore(socket));
}catch(IOException e){}
class StoreScore implements Runnable {
BufferedReader reader;
Socket sock;
public StoreScore(Socket clientSOcket) {
try {
sock = clientSOcket;
InputStreamReader isReader = new InputStreamReader(sock.getInputStream());
reader = new BufferedReader(isReader);
} catch (Exception ex) { ex.printStackTrace(); }
public void run() {
String message;
try {
while ((message = reader.readLine()) != null) {
// System.out.println("latest score: " + message);
saveScore(message);
} catch (Exception ex) { ex.printStackTrace(); }
public void saveScore(String message){
 ArrayList<String> storedScores = new ArrayList<String>();
 storedScores.add(message);
 Iterator<String> t = storedScores.iterator();
 while(t.hasNext()){
 String s = t.next();
 System.out.println(s);
}

does every thread create a new instance of storedScores and therefore the scores are stored in a multitude of data structures?
I think the answer is yes and if so then this is not the solution...The answer is yes. However, threads can share data, if they were properly synchronized. You should read the threading tutorial before creating a lot of hard to debug mistakes.
[http://java.sun.com/docs/books/tutorial/essential/concurrency/]

Multiple clients on socket connection

Hi!
I understand that it is possible that multiple clients listen to one server (on the same port) and even write to it (then it should be a multi-threaded server).
But i would like to refuse connectios, if one client is connected. How can I do that?
In my case I have a (single threaded) server. Now one clients connects. The server waits to receive data from the client and answers, without ever closing the port. that works.
Now if I connect with a second client, the openicng of the socket in the second client works fine, although the server does not seem to notice the second client. Communication is not possible between the server and the second client, and the server doesn't answer to the first client anymore, although he receives data from it.
So, since the server does not seem to notice the second client (does not accept the connection) and I don't get an exception at the second client, what can I do?
Thank you for your help!
concerned Code (if you want to take a look at it):
CLIENT:
socket = new Socket(hostname, echo_port);
SERVER:
try
ServerSocket waitingsocket = new ServerSocket(echo_port);
try
     socket= waitingsocket.accept();
     System.out.println("Client connected");
     ReaderThread reader = new ReaderThread( this, socket );
     reader.start();
catch (Exception e)
READER:
public void run()
     while (true)
          try {
               int bytesRead = inStream.read(inputBuffer,
               0, inputBuffer.length);
               readCallback.tcpUpdate(inputBuffer,bytesRead);
          catch (Exception oops)
               readCallback.tcpUpdate(null,-1);


Just to make sure this is clear: You can NOT have multiple clients on a given socket connection. You CAN have multiple clients connected to a particular port on a given server, but each client will be communicating with the server through a different of socket.
The usual approach here is to set up a listening ServerSocket on the desired port, call accept() on it, then process the communication from the returned Socket object. This is usually done by spawning a new thread and allowing it to handle the socket communication, while the ServerSocket loops around to another accept() for the next communication.
Here's an excellent intro to the concepts (the code is really ugly and poorly implemented, but it does a good job of explaining the overall concept). I used this as a starting point, and now (after a whole lot of development) have a pretty sweet extensible web server class that handles template expansion, etc... (I use this as a quick and dirty UI for some of my apps, instead of requiring the user to install a JSP container):
http://developer.java.sun.com/developer/technicalArticles/Networking/Webserver/
- K

TES 6.1.0.x Multiple Client Managers

Hello:
I am trying to find out if there is anyone else using multiple client managers on a load balancer and if we could have a discussion regarding such a setup. We have this in our envrionment and it does work, however sometimes I see oddities with in the client - even if I log directly into one of my client managers, by-passing the load balancer completely.
Looking forward to hearing from anyone with a similar setup.
Regards,
Ceceil Rufo

We haven't done a formal load testing yet. But we have conducted training with 10 - 15 users and would experience performance sometimes people just getting kicked out. At the time though we were still finagling with server configuration settings for threads, cache and java heap. During training too what seemed to impact performance more was the browser and version, and workstation memory. For a web app, TES 6.1 uses a LOT of memory so there were some suggested tweaks that had to be done on some machines. We have more consistent performance on IE 9 (than IE 10), and Firefox 18+ was faster.
I have installed Jconsole and am planning to conduct load testing sometime this month where i could monitor server resource from Jconsole to get an idea where bog down really is.
There is a TES 6.1 presentation doc that sort of outlines approx sizing based on concurrent users - we fit in the 10 -20 concurrent users given that our CM has 12GB RAM (allocated 10GB to TES) and 4 core. So hopefully with two CMs we can have upto 40. We are open to adding more mem if needed. So what tools do you use for Load testing? Also I wonder if it was possible to automate Load Testing like with Jmeter or something. For now we just plan on getting 20 users together to perform set functions at the same time and measure that with 1 CM up and me looking in Jconsole.
I also notice the multiple connections, even see myself twice even when I only have 1 browser session. Not having had a chance to dig to deeply i was chalking it up to maybe that I didn't exit properly last time so that it has to wait 30 minuts to totally clear me (with time to live setting) out but haven't really tested formally. I will see about adding that to my testing. I would also think it would impact system in that some folks may cause the number of concurrent connections allowed to be exceeded if you have too many of these lying around but since they are not doing anything perhaps not performance as much? It will be good to confirm though that a single web session really only takes 1 connection and won't potentially spawn another somehow.
Our implementation being highly distributed with workgroups having full autonomy over their jobs - means every team needs to have access to Transporter. We have over 15 teams. Which is scary since that also takes resources from the CM - and also from a management and training perspective. We also haven't load tested the Transporter server interms of number of concurrent users that can be running Transporter on it at one time. Nor have any clear idea yet how we'll manage the mapping files. But we are also opening up Transporter to be installed by teams on their team server (only that they have to patch themselves) - I really wonder if we should just restrict Transporter access to just the servers our team manage and no one else can install it anywhere else.

XI, SLD & multiple clients for DEV & QA

Ref: Re: 3rd party tech systems for multiple business systems...
I have a question regarding the avoidance of duplicated Configuration (Collaboration Profiles, Logical Routing & Collaboration Agreements) for different clients in the DEV/QA landscape.
As we know: many projects have multiple clients in DEV and QA. Here is an example landscape:
SXD_100 - Dev XI server
SED_100 - config dev
SED_200 - ABAP dev
SED_300 - unit test
SED_400 - sandbox
[ 1 technical system : 3 business systems ! ]
LDEV Legacy system
[ 1 technical system : 1 business system ]
SXQ_100 - QA XI server
SEQ_100 - clean config QA
SEQ_200 - ABAP QA
SEQ_300 - data migration prep
SEQ_nnn - yada, yada...
[ 1 technical system : nnn business systems ! ]
LQA Legacy system
[ 1 technical system : 1 business system ]
The problem:
SED_400->LDEV is used for prototyping integration
SED_100->LDEV is used for config development
SED_200->LDEV is used for ABAP development
SED_300->LDEV is used for unit tests
Receiver Determination is able to look into the message for a dynamic receiver, but we are not able to have a sender like "SED*"
The question:
Do we really need multiple sets of configuration in the Integration Directory? Is there a way to re-use the configuration for SED_100->LDEV for the other development efforts?
Any feedback would be greatly appreciated.
Rgds,
Derek

Hi Derek,
Since there can only one business system in SLD per client in SAP R/3.
e.g
SED_100 will have lets say BS_100_Dev
SED_200 and BS_200_Dev
In QA
SEQ_100 -> BS_100_QA
SEQ_200 -> BS_200_QA
It is not possible to configure the single scenario catering the Dynamic (multiple) sender agreement to Reciever.
But for QA you can use set transport target in SLD to reflect the BS_100_Dev -> BS_100_QA, where ever used.
This doesnot solve the problem of having dynamic sender service, it is just for information.
We also faced the same problem of testing a scenario from different clients of SAP :(.
Cheers,
Satish

Multiple Clients in SCM/APO 51.

Hello,
1.Is it possible to create Golden master client & Testing client in a single SAP SCM/APO5.1 instance and work simultaneously with the BI and APO commands (e.g. RSA1) in both the clients?
2.Can we have two live cache servers on a single physical hardware?
3.Can a single live cache server can be connected to two different SAP instance DEV and QAS?
Regards
Riya
SAP basis Consultant

I do not have a good answer but it seems APO-DP uses BW as Data Mart which results in some restriction in using multiple client. See SAP Note 522569 for details. Moreover in the Multi-client Whitepaper (attached to SAP Note 31557) the table in page 23 mentions Multi-client Status for APO with DP : Not OK and APO w/o DP : Restricted OK.
Hope this is of some help.
somnath

Multiple Clients in Client/Server Program

I'm currently trying to make a small Client/Server application that will mimic a very basic chat room program. The basic idea is that the Server side of the program is started and multiple Client programs can connect and communicate with each other. However, I'm having a few problems at the moment, mostly with figuring out how it can work.
Firstly, I can communicate one to one with the server and the client as the client socket is stored in a variable. However, to make it possible to allow multiple connections I've used a thread for each new connection but I'm not sure how I can broadcast messages to every connection. Would it be safe enough to store each client socket in a list and then communicate that way? Not sure what will happen when the client disconnects though it seems to be an issue.
I'm also not sure how every message can be broadcasted to every single connections to the server. The server program can send a message to every client but the clients message at the moment only goes to the server. Anyway here's a bit of my code so far:
SwingWorker<Socket, Void> worker = new SwingWorker<Socket, Void>() {
 protected Socket doInBackground() throws Exception {
 // Client socket
 try {
 while (!stopRequested) {
 clientSocket = serverSocket.accept();
 // Stop requested is checked twice because the accept() method
 // waits for a connection
 if (!stopRequested) {
 HostFrame.getFeedbackTextArea().append("New Connection Found");
 Thread clientThread = new HandlerThread(clientSocket);
 clientThread.start();
 else {
 serverSocket.close();
 clientSocket.close();
 catch (Exception e) {
 HostFrame.getFeedbackTextArea().append("Failed to Connect with Client");
 System.out.println(e.getMessage());
 return clientSocket;
 };The SwingWorker is used so that the GUI doesn't freeze when the server tries to find a connection. At the moment it just creates a thread for each new connection but I'm guessing this isn't what I'm going to be needing to handle more than one client. Also at the moment I have no way of directing a message to a specific socket I'm pretty much just using the standard method shown on the Sun website about Sockets. Any help would be much appreciated

clientSocket = serverSocket.accept();'clientSocket' should be a local variable here.
else {
serverSocket.close();
clientSocket.close();You shouldn't close 'clientSocket here'. All you're accomplishing is closing the most recently accepted client socket. What about the others? Generally speaking you should let the client-handling threads take care of their own sockets completely.
return clientSocket;This return statement is meaningless. You may as well return null. SwingWorker doesn't care. Don't just return something because you've got it lying around. In this case you shouldn't have it lying around.
At the moment it just creates a thread for each new connection but I'm guessing this isn't what I'm going to be needing to handle more than one client.That is exactly what you have to do to handle more than one client. Once you fix it as per above.
Also at the moment I have no way of directing a message to a specific socket I'm pretty much just using the standard method shown on the Sun website about Sockets.You probably need to keep a Map of client sockets accepted, keyed by some client identifier.

Multiple clients and multiple databases on one system

Does SAP support having a single system ( Let's call it PEQ for the sake of argument ) having multiple clients ( again, for the sake of argument, call them 200, 250, 260, and 300) allow for each client to have it's own physical database ?
For example, here is what I would like to have set up:
PEQ 200 - database 1
PEQ 250 - database 2
PEQ 260 - database 3
PEQ 300 - database 1
So PEQ 200 and 300 access database 1, PEQ 250 accesses database 2, and PEQ 260 accesses database 3.
I only want to know if this is possible and if so how would you set it up. I do not want to get into any discussion on whether this is the best way to go or not. Any pointers to OSS notes on the subject are more than welcome.
Thanks;
Bruce

> So PEQ 200 and 300 access database 1, PEQ 250 accesses database 2, and PEQ 260 accesses database 3.
>
> I only want to know if this is possible and if so how would you set it up. I do not want to get into any discussion on whether this is the best way to go or not. Any pointers to OSS notes on the subject are more than welcome.
Simple answer: No.
Long answer:
- Workprocesses don't know anything about "clients". A client is nothing more than an additional field in a table with the client number. So it's not possible to configure them to connect to a certain database using a "client number".
- A client alone has nothing but application data. It has no dictionary (tables, views) and it has no repository (source code) that can be executed
- A SAP system (ABAP) has cross client customizing that would need to be shared somehow, technically not possible since also here the workprocess (which is the lowest unit) does not know whether a table is client dependent or not.
Maybe there is a way to come out of this dilemma - if you tell us, what you (business) requirement is.
Markus

Ep 6.0 single backend multiple clients

Similar Messages

Maybe you are looking for