Concurrent user and hardware

can any one tell me pleas ..
how many concurrent user can access on oracle at the same time??
what is the minimum computer hardware specifications to install oracle??

user12831849 wrote:
can any one tell me pleas ..
how many concurrent user can access on oracle at the same time??
what is the minimum computer hardware specifications to install oracle??Hi and welcome to the forum
Look at the documentation :
http://download.oracle.com/docs/cd/B19306_01/install.102/b15660/pre_install.htm#i1011296

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How EM invokes the concurrent users and list of parameters scripts in EM ?

Hi,
How to check if EM is invoking the concurrent users and list of parameters scripts for a db instance target or not ?
And how EM invokes these in EM ?
Thanks in Advance.

Not sure what you mean with this question, could you be a bit more specific?
Regards
Rob
http://oemgc.wordpress.com

Restrict concurrent user and/or session from a client

Hi All:
We have an application with database Oracle 10g.
I want to add a new validation to restrict concurrent user and/or session from a client. (we have almost 60 client firms using the software to enter daily trasnactions).
All users from all clients are connecting to the database using a common functional ID.
What I did was:
1) Add a column 'user_logged_in' in the master table for client and update it as Y when user from that client logged on to the system,
2) Insert the application logon details (we can figure out the client details from this) into a global temp table,
3) Create a logoff trigger to update the 'user_logged_in'flag in client master table by using values from global temp table when session logged off and
4) Restrict the users from same client if the flag is 'Y'
But the problem in this case is logoff trigger will not be executed in case if the session got killed or terminated abnormally.
Is there any other good solution for this scenario?
Thanks
Robin

>
But the problem in this case is logoff trigger will not be executed in case if the session got killed or terminated abnormally.
Is there any other good solution for this scenario?
>
A better question might be - is there any other 'worse' solution than that?
>
2) Insert the application logon details (we can figure out the client details from this) into a global temp table,
>
Meaning - if that session goes down you have NO logon details since the data isn't persistent. Is that really useful?
There is nothing you can do to account for someone just pulling the plug on: the server, the network connection, the bridge, the router, etc. And if a user is connected, starts a long-running process and then gets disconnected the process is likely to keep running in the background until Oracle needs to talk to the user again and then realizes that they are gone.
Meanwhile the user is trying to logon again but can't because the system thinks they are already logged on.
>
All users from all clients are connecting to the database using a common functional ID.
>
Doesn't that kind of make it harder, not easier, to track who is really connecting and using your application?

Maximum user and hardware requirement for SAP B1

Dear All,
One of our prospect said that they will need 80 users and 160 connections to servers. And every year there will be additional user growth as much 30. What will be the hardware requirement for that ? has SAP B1 installed in that kind situation ? I appreciate your answer.
Rgds,

Mark,
Please refer to the following PDF
https://websmp206.sap-ag.de/~form/sapnet?_FRAME=CONTAINER&_OBJECT=011000358700000270512007E&_SCENARIO=01100035870000000183&_ADDINC=
Regarding 80 user initially with a growth of 30 user every year should not be a problem, but you might want to consider the volume of transactions to determine the performance aspect of the system.
Also check the following link
https://websmp206.sap-ag.de/smb/sbo/resources
Good luck
Suda

15 concurrent users and JBO-35007 row currency has changed

Hi!
Something for the weekend :)
I have an ADF/BC 10.1.3.3. application on 10.1.3.3. Oracle AS. I use a jazn security with users and roles stored in database tables. While testing with one or two users I never ran into the same problem as we had this week when testing with 15 users. I have an entity and VO with a whole attributes that are edited in a couple of jspx pages that composed with process train control. There are also a couple of detail data edited on this page. I'm using ProcessScope quite a lot to pass some information between the pages.
Well, to get to the point: when testing with 15 users we had A LOT of JBO-35007 row currency has changed since the user interface was rendered errors in this process. Every user was editing it's own data row. The error appeared every time a user left the application inactive for a couple of seconds, entered some data and clicked commit. I'm not aware of the security settings of the browser on the testing computers and I can't get them now to see if something like this could be the problem.
When I checked the log files, there are a lot of errors or warnings in them. I'll try to sum the ones that might be important for this issue. These errors appear a lot's of times in these log files that is why I'm assuming some of these are connected to my issue.
application.log file in application-deployments logs:
08/04/23 09:58:42.443 MyViewControllerArchive: Servlet error
java.io.IOException: An existing connection was forcibly closed by the remote host
08/04/23 11:31:47.980 MyViewControllerArchive: Servlet error
java.io.IOException: An established connection was aborted by the software in your host machine
08/04/23 11:31:49.402 MyViewControllerArchive: Servlet error
java.lang.IndexOutOfBoundsException: SelectOne submittedValue's index 0 is out of bounds. It should be between 0 and -1
08/04/23 11:33:19.104 MyViewControllerArchive: An established connection was aborted by the software in your host machine
08/04/23 11:33:19.104 MyViewControllerArchive: Servlet error
java.io.IOException: An established connection was aborted by the software in your host machine
A whole lot of these kind of errors:
08/04/23 11:24:06.80 MyViewControllerArchive: Servlet error
oracle.jbo.common.ampool.ApplicationPoolException: JBO-30019: An unavailable cookie state was detected while attempting to use a cookie. applicationId: 54ffe51d30d5c84e0cb1979645a196749529aeb674d8, sessionId: MyModuleDataControl.
08/04/24 08:39:22.424 MyViewControllerArchive: Servlet error
java.lang.IllegalStateException: Response has already been committed
log.xml file in oc4j folder:
<MESSAGE>
          <HEADER>
               <TSTZ_ORIGINATING>2008-04-23T09:53:49.165+02:00</TSTZ_ORIGINATING>
               <COMPONENT_ID>adfinternal</COMPONENT_ID>
               <MSG_TYPE TYPE="WARNING"/>
               <MSG_LEVEL>1</MSG_LEVEL>
               <HOST_ID>my_AS</HOST_ID>
               <HOST_NWADDR>my_IP</HOST_NWADDR>
               <MODULE_ID>view.faces.model.binding.FacesCtrlRangeBinding</MODULE_ID>
               <THREAD_ID>10</THREAD_ID>
               <USER_ID>SYSTEM</USER_ID>
          </HEADER>
          <CORRELATION_DATA>
               <EXEC_CONTEXT_ID>
                    <UNIQUE_ID>1208937229:my_IP:3020:1764:630</UNIQUE_ID>
                    <SEQ>1</SEQ>
               </EXEC_CONTEXT_ID>
          </CORRELATION_DATA>
          <PAYLOAD>
               <MSG_TEXT>rowIterator is null</MSG_TEXT>
          </PAYLOAD>
     </MESSAGE>
<MESSAGE>
          <HEADER>
               <TSTZ_ORIGINATING>2008-04-23T09:48:30.903+02:00</TSTZ_ORIGINATING>
               <COMPONENT_ID>j2ee</COMPONENT_ID>
               <MSG_ID>J2EE DS-00265</MSG_ID>
               <MSG_TYPE TYPE="WARNING"/>
               <MSG_LEVEL>1</MSG_LEVEL>
               <HOST_ID>my_AS</HOST_ID>
               <HOST_NWADDR>my_IP</HOST_NWADDR>
               <MODULE_ID>datasource</MODULE_ID>
               <THREAD_ID>12</THREAD_ID>
               <USER_ID>SYSTEM</USER_ID>
          </HEADER>
          <CORRELATION_DATA>
               <EXEC_CONTEXT_ID>
                    <UNIQUE_ID>my_IP:57162:1208526415373:226</UNIQUE_ID>
                    <SEQ>0</SEQ>
               </EXEC_CONTEXT_ID>
          </CORRELATION_DATA>
          <PAYLOAD>
               <MSG_TEXT>Unclosed connection detected : 'oracle.oc4j.sql.spi.ConnectionFinalizer@f67148' : ''.</MSG_TEXT>
          </PAYLOAD>
     </MESSAGE>
<MESSAGE>
          <HEADER>
               <TSTZ_ORIGINATING>2008-04-23T09:53:54.165+02:00</TSTZ_ORIGINATING>
               <COMPONENT_ID>adf</COMPONENT_ID>
               <MSG_TYPE TYPE="WARNING"/>
               <MSG_LEVEL>1</MSG_LEVEL>
               <HOST_ID>my_AS</HOST_ID>
               <HOST_NWADDR>my_IP</HOST_NWADDR>
               <MODULE_ID>controller.faces.lifecycle.FacesPageLifecycle</MODULE_ID>
               <THREAD_ID>13</THREAD_ID>
               <USER_ID>SYSTEM</USER_ID>
          </HEADER>
          <CORRELATION_DATA>
               <EXEC_CONTEXT_ID>
                    <UNIQUE_ID>1208937232:my_IP:3020:508:635</UNIQUE_ID>
                    <SEQ>299</SEQ>
               </EXEC_CONTEXT_ID>
          </CORRELATION_DATA>
          <PAYLOAD>
               <MSG_TEXT>JBO-35007: My 35007 JBO message since I overwritten the message text</MSG_TEXT>
          </PAYLOAD>
     </MESSAGE>
The problem is I can't reproduce this behaviour any more in my environment. If someone could maybe point me to the errors that are important and could be the cause of this errors. Could this be an internet browser security settings issue? What about those errors about aborted connections?
If you can't provide me an answer (which I know it would be very difficult by the information provided), maybe you could explain the cause of some of the errors described above?
I'd appreciate any tips on this since I don't have e an idea how and where to start to at least reproduce and find out the cause of this. Than I'll worry about the solution :).
Thank you in advance,
BB

Hi,
I am also facing the same issue JBO-30019: An unavailable cookie state is detected while attempting to use a cookie from application {0}, session {1}.
Is there anyone who has been able to reproduce this. If yes can you please update the following bug which is logged for the issue: [9507310|https://bug.oraclecorp.com/pls/bug/webbug_edit.edit_info_top?report_title=&rptno=9507310&query_id=814000&rptno_count=1&pos=1]
It will be of much help.
I have found the following page referring the problem: page, if this helps.
Please update.
Regards,
Ashis
글 수정: user9546421

500 Concurrent Users: 2 J2EE Servers are enough???

Hello All,
We are planning to build the PRD system for the client on the MSCS Cluster environment. There will be 500 concurrent users and they want to have 2 J2EE Servers.
Now my Question is although there's no Single Point of Failure(SPOF) can we go ahead with the 2 J2EE Servers (I think we should not).
We are suggesting 3 J2EE Servers instead of 2 as the matter of the fact with 2 Servers is, What if one of the server goes down, all the load will be then on the single Server which may not handle all the load and may die too.
So i'm looking for the strong points to convince them for 3 Servers instead of 2.
Any ideas...
Points are guranteed
Vaib

In my experience, a single server with a 1.5GB heap size will handle about 500 - 700 users. A lot of this depends upon what exactly is going on in the portal. ESS and MSS will tend to have a greater impact on the portal than BW reports. I would say that the strongest way to convince them of this is to execute some load tests and see where the limits of your boxes are based upon your specific portal implementation.

BlazeDS and scalability (i.e., concurrent users)

BlazeDS relies on the Servlet API...so, it means about a few hundred concurrent users, maximum -- which isn't very encouraging. This is because, in BlazeDS, one user equals one, or maybe two/three threads...
Has anyone else considered this and/or thought of a work around? I presume BlazeDS cannot load balance, etc, so having a proxy like Apache point to different servers isn't an option.
Anyone have any suggestions?
Thanks,
Cormac

>>BlazeDS relies on the Servlet API...so, it means about a few
>>hundred concurrent users, maximum -- which isn't very encouraging.
>>This is because, in BlazeDS, one user equals one, or maybe
>>two/three threads...
How many concurrent users a BlazeDS server can support will depend a lot on what channels/endpoints you are using. You are right that with a streaming endpoint you are probably limited to a few hundred concurrent users because each connection is persistent and is going to tie up one of your app server's request handler threads. If you use polling however you can support many more concurrent users. This is because connections are not persistent and the poll requests made to the server are short-lived. Web/application servers are very good at handling these types of requests so you should be able to handle a few thousand concurrent users using polling (although a number of factors such as your polling interval, type and size of data/messages being sent around, individual app server, server hardware, network configuration etc. will all affect this). The trade off with using polling is that it is not as real time as streaming. If a message shows up on the server it won't get delivered to you right away. Instead you'll get it the next time your poll request reaches the server. This might be ok for some people. If you need "real time" delivery of messages to large numbers of clients, you can use LiveCycle Data Services ES which has an NIO based version of the streaming endpoint. This endpoint can support many more concurrent users (probably a few thousand although caveats listed above also apply here) than the HTTP based streaming endpoint because each connection doesn't tie up a request handler thread.
>>Has anyone else considered this and/or thought of a work around? I
>>presume BlazeDS cannot load balance, etc, so having a proxy like
>>Apache point to different servers isn't an option.
You can load balance BlazeDS servers. Make sure your load balancer uses session pinning/sticky sessions because for messaging to work you need to keep communicating back to the same server. We've seen some issues with load balancing streaming connections because some load balancers buffer the data being sent back to the client over the streaming connection. I believe Apache is one of the servers that does this so you'd definitely have to do some testing to find a proxy server that worked for you if you wanted to load balance streaming connections.
>>Anyone have any suggestions?
BlazeDS actually scales quite well (at least in my opinion) when using non-persistent connections with short-lived requests, such as with polling. If you want to support large numbers of concurrent users with streaming/persistent connections, I'd look at using LiveCycle Data Services ES.
-Alex

Named and Concurrent users

Dear Friends,
Please help me to find named number of users in PeopleSoft specific to module.Below are the modules i am using and i wanted to know named and concurrent users using these modules
Human Resources
Benefits Administration
Pension Administration
Thanks
Uday.

Hi Bart,
Difference between named users and concurrent users:
Named user means when you buy BOXI you buy a certain amount of named user licenses and then you give each of these named users a login. It`s a cheaper type of license but you have to know exactly who your users are, and so is pretty useless if your userbase is constantly changing or your exposing Infoview over the web.
Concurrent user licenses are now only available in BOXI Edge - the equiv in BOXI Pro\Premium is a CPU license, which means you can let as many people login as your hardware will support. Concurrent user licenses are useful when you don`t know who your userbase is - you can just give a generic login for people to use. Or give people specific logins and not worry that they might not be using the system and using up a valuable named user license.
for more information follow the below links:
http://www.forumtopics.com/busobj/viewtopic.php?p=476977
http://www.forumtopics.com/busobj/printview.php?t=125096&start=0&sid=095882f7c0d636e7bca723e5930c21d3
Hope this helps.
Regards,
Deepti Bajpai

What is the ideal size of hardware for 500 concurrent users?

Hi,
I have a DB of 10GB and around 1500 forms/reports,
400 no of concurrent users.
Can anybody help me in deciding requirement of hardware for db and app.server
rgd

A lot is going to depend on the type of setup you require. How many servers you will split this up on. What your reports and forms are doing. How your datamodel is set up. How much data you have, etc.
Not sure there is a concise answer to that question.
Tony

Hign vol txns and concurrent users

          I have a application in hand which will be reqd to support 100000 txns per day and about 1000 concurrent user
          . Can BEA WebLogic deliver that. Do you have a live project example of this volume done in Weblogic. What will be the scalability
          It would be nice if U can help me on this


In article <[email protected]>, [email protected] says...
          >
          > I have a application in hand which will be reqd to support 100000 txns per day and about 1000 concurrent user
          > Can BEA WebLogic deliver that. Do you have a live project example of this volume done in Weblogic. What will be the scalability
          > It would be nice if U can help me on this
          >
          DT,
          Do call a BEA sales rep. They have the documentation and access to
          engineers to discuss this with you in person. Rob, Gene et al are not
          equipped (or authorized, I think) to disseminate this sort of
          information in this forum.
          BTW 1M tx a day is a lot as is 1000 concurrent users. I'd be more
          focused on networking and database hardware then app server.
          Jesse

A quick question about WebDynpro SLD and R/3 with concurrent users

Hello ,
I have a very quick question about Webdynpros and SLD connecting to an R/3 system, when you configure a webdynpro to connect to an R/3 system using SLD, you configure a user name and password from the R/3 for the SLD to use. What I would like to know is when I have concurrent users of my webdynpro, how can I know what one user did in R/3 and what another user did? Is there a way for the users of the web dynpro to use their R/3 credentials so SLD can access the R/3? Like dynamically configuring the SLD for each user?
- I would like to avoid leaving their their passwords open in the code ( configuring two variable to get the users username and password and use these variables as JCO username and password )
Thanks Ubergeeks,
Guy

Hi Guy
You will have to use Single Sign On to achieve this. In the destination you have defined to connect to R/3 , there is an option to 'useSSO' instead of userid and password. This will ensure that calls to R/3 will be with the userid that has logged into WAS. You wont need to pass any passwords because a login ticket is generated from WAS and passed on to R/3. The userid is derived from this ticket.
For this to happen you will have to maintain a trust relation ship between R/3 and your WAS ,there is detailed documentation of this in help files. Configuration is very straight forward and is easy to perform
Regards
Pran

Load balancing and clustering for SQL SERVER ANALYSIS SERVER instances to access large number of concurrent users for bi site

HI
how to do analysis server clustering
we have sharepoint bi site and we published many dashboards pointers ,filters kpis
and at a time some 200 to 300 concurrent users access these dashboards pages
so for maintain this requirement how we apply clustering for ssas intances
and also it has load balancing
adil

Hi Adil,
According to your description, you want to implement SQL Server Analysis Services Clusster and Analysis Services Load Balancing, right?
In SSAS, we can design highly available solutions in Analysis Services by using: network load balancing (NLB) technologies, failover clustering technologies, or both. For the details about implemention, please refer to the links below.
http://msdn.microsoft.com/en-us/library/dn736073.aspx
http://sqlsrvanalysissrvcs.codeplex.com/wikipage?title=Analysis%20Services%20Load%20Balancing
http://technet.microsoft.com/en-us/library/bb500217(v=sql.105).aspx
Regards,
Charlie Liao
TechNet Community Support

EP Performance Tunning and concurrent user login problems

Hi all.
We have a EP , integrated with Windows AD and SAP R3.
In real situation, there will be 1000 users login in EP in 0.5 hours. And their operation time will be 6-8 hours, connect to R3 or other applications.
Is EP can support such concurrent user login scenario ?
if EP fails, is there some performance monitor tool or performance tunning issue ?

Hi
EP supports this logon load, however it all depends on sizing and architecture! Also the content of the STARTPAGE can be critical (make it "light").
If the portal fails, then often it is only one J2EE server process, which fails - so by having more server-processes will be an easy/minimum form of high availability. A "real" HA solution must be considered if your business will not work without the portal og SAPGUI connections can be used as workaround/fallback in such situations.
BR
Tom Bo

IFS and 3000 concurrent users ?

We have tested iFS in a small scale and it works fine, but it requires a lot of resources. We now have a case with a client who wants to run iFS for 3000 concurrent users. Are there any whitepapers etc where scalability of this scale is discussed ? I have read about the Siemens-reference, do they have any numbers ?

Comments below (after your questions)
Q1) To increase the maximum heap size in iFS 1.0.8.3 on Solaris 7, we modify the -mx heap size in the ifsstart script (command below). Is this the correct location to modify this setting?
A1) No. In the iFS 1.0.8 Installation Guide, on page 1-5, it says "JVM maximum heap sizes can be configured by editing the following file:
$ORACLE_HOME/ifs/settings/IfsProtocols.def."
There you can specify the MX setting independently for each protocol.
Q2) There is an additional command in ifsstart to restart JWS. By default, this -mx heap size is smaller than the other. What is the reason behind this?
A2) It's not exactly clear, but on page 1-4 of the iFS 1.0.8 Installation Guide, it says:
Note: The Java Web Server (JWS) is actually made up of up to three processes, each of which is set to have a maximum heap size of either 64M (minimum requirements) or 128M (recommended settings). In almost all cases, only one of these processes will ever come close to consuming this maximum amount. The memory usage of the other two processes is negligible.
I believe that the "mx" is lower because it doesn't need much memory. (But I don't have a 1.0.8 install in front of me).
Q3) If you have the memory avaiable, should each of these heap sizes be set to the maximum the JVM can handle (2GB)? Drawbacks?
A3) If you have enough memory, and you are starting the iFS protocols using ifsstart, then each of the MX settings in the IfsProtocols.def file should be set as high as 2G (for each protocol you're using).
Q4) $IFS_JWS_HOME/bin/jserv -jre -vmargs -mx512m > $ORACLE_HOME/ifs/log/JWS.log 2>&1 &
A4) I think this is right.
null

High txn vol and concurrent users

I have a application in hand which will be reqd to support 100000 txns per day and about 500 concurrent user
. Can BEA WebLogic deliver that. Do I need any tools like Tuxedo etc. Do you have a live project example of this volume done in Weblogic.
It would be nice if U can help me on this

100000 txs per day is about 1-2 tx per second. (unless my math is
off). That should be no problem for WLS.
I would suggest that you talk to your sales representative or
[email protected] for customer references.
-- Rob
DT wrote:
>
I have a application in hand which will be reqd to support 100000 txns per day and about 500 concurrent user
Can BEA WebLogic deliver that. Do I need any tools like Tuxedo etc. Do you have a live project example of this volume done in Weblogic.
It would be nice if U can help me on this

Concurrent user and hardware

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