Multiple Instances of OEDQ on a single server

Hi,
I am running a Linux Machine (Linux 2.6.18-308.1.1.0.1.el5), on which I have the latest version of Oracle 11g release 2 installed.
I have an instance of oracle Enterprise Data Quality tool running on an apache-tomcat-7 server. Port 8080
Now I have a requirement of Installing another instance of OEDQ on the same server, but a different APACHE_HOME directory and a different Port Number (8081).
So the question is, Can we install multiple instances of OEDQ on a single server?
If so, what are the prerequisites to be maintained.
I did my bit of tries, but ended up having issues with some java errors.
I have posted the error message below.
SEVERE: Context initialization failed
*org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemanager' defined in class path resource [conf/casemanagement.xml]: Cannot resolve reference to bean 'casedao' while setting bean property 'caseDAO';*
The complete Error Log in the Catalina.out file is pasted below.
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /u100/app/PCEXDB/orpcexmt/oracle/loqate:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
May 13, 2013 12:50:08 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8081"]
May 13, 2013 12:50:08 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8010"]
May 13, 2013 12:50:08 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 792 ms
May 13, 2013 12:50:08 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
May 13, 2013 12:50:08 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.29
May 13, 2013 12:50:08 AM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/dndirector.war
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-tiles is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-html is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-bean is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-logic is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-nested is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-bean is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-html is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-logic is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-nested is already defined
May 13, 2013 12:50:13 AM org.apache.catalina.startup.TaglibUriRule body
INFO: TLD skipped. URI: http://struts.apache.org/tags-tiles is already defined
May 13, 2013 12:50:14 AM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
May 13, 2013 12:50:14 AM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing com.datanomic.director.startup.WebApplicationContext@2dfe88b8: display name [Root WebApplicationContext]; startup date [Mon May 13 00:50:14 CDT 2013]; root of context hierarchy
May 13, 2013 12:50:16 AM com.datanomic.director.startup.WebApplicationContext loadBeanDefinitions
INFO: Spring bean loading complete.
May 13, 2013 12:50:24 AM org.springframework.web.context.ContextLoader initWebApplicationContext
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemanager' defined in class path resource [conf/casemanagement.xml]: Cannot resolve reference to bean 'casedao' while setting bean property 'caseDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casedao' defined in class path resource [conf/casemanagement.xml]: Cannot resolve reference to bean 'casemetadata' while setting bean property 'caseMetadata'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemetadata' defined in class path resource [conf/casemanagement.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:275)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at com.datanomic.director.startup.WebApplicationContext.refresh(WebApplicationContext.java:109)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casedao' defined in class path resource [conf/casemanagement.xml]: Cannot resolve reference to bean 'casemetadata' while setting bean property 'caseMetadata'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemetadata' defined in class path resource [conf/casemanagement.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:275)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:728)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:380)
at com.datanomic.director.startup.WebApplicationContext.refresh(WebApplicationContext.java:109)
at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4791)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5285)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:963)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1600)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'casemetadata' defined in class path resource [conf/casemanagement.xml]: Error setting property values; nested exception is org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1279)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
at java.security.AccessController.doPrivileged(Native Method)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)
... 46 more
Caused by: org.springframework.beans.PropertyBatchUpdateException; nested PropertyAccessExceptions (1) are:
PropertyAccessException 1: org.springframework.beans.MethodInvocationException: Property 'flags' threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:104)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:59)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1276)
... 57 more
May 13, 2013 12:50:24 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Error listenerStart
May 13, 2013 12:50:24 AM org.apache.catalina.core.StandardContext startInternal
SEVERE: Context [dndirector] startup failed due to previous errors
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [dndirector] registered the JDBC driver [oracle.jdbc.OracleDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
SEVERE: The web application [dndirector] registered the JDBC driver [org.postgresql.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [dndirector] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@623e20db]) and a value of type [java.lang.Class] (value [class oracle.sql.TypeDescriptorFactory]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
May 13, 2013 12:50:25 AM org.apache.catalina.loader.WebappClassLoader checkThreadLocalMapForLeaks
SEVERE: The web application [dndirector] created a ThreadLocal with key of type [java.lang.ThreadLocal] (value [java.lang.ThreadLocal@da1c402]) and a value of type [java.lang.Class] (value [class oracle.sql.AnyDataFactory]) but failed to remove it when the web application was stopped. Threads are going to be renewed over time to try and avoid a probable memory leak.
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/docs
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/examples
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/manager
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/ROOT
May 13, 2013 12:50:25 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory /u100/app/PCEXDB/orpcexmt/oracle/OEDQ2/apache-tomcat-7.0.29/webapps/host-manager
May 13, 2013 12:50:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8081"]
May 13, 2013 12:50:25 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8010"]
May 13, 2013 12:50:25 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 16882 ms
Can someone please tell me what is going wrong here?

Hi,
Multiple instances of EDQ on a single server is technically possible provided the installer takes care to avoid port conflicts. It is not the case that there is a single port used by an EDQ server, for example.
For various reasons, it is not officially supported; attempting to diagnose issues on custom installations on Tomcat is especially difficult and we do not provide documentation on this. In general, the requirement usually comes up for Dev/Test instances (as there is no performance advantage of using multiple instances on a single server), where we would recommend the use of virtualization where this is a requirement.
Regards,
Mike

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2) Run the D:\Oracle\Middleware\user_projects\epmsystem2\bin\stopEssbase.bat   to STOP the 2nd instance
3) Run the D:\Oracle\Middleware\user_projects\epmsystem1\bin\stopEssbase.bat   to STOP the 1st instance
4) For 2nd instance rename the Essbase.log and essbase.sec file to some dummy names e.g. like Essbase_old.log and essbase_old.sec
5) Now Run the "Start Server" (desktop shortcut)
6) Run the D:\Oracle\Middleware\user_projects\epmsystem2\bin\startEssbase.bat   to START the 2nd instance
7) Run the D:\Oracle\Middleware\user_projects\epmsystem1\bin\startEssbase.bat   to START the 1st instance
8) Add the 2nd and 1st instance to EAS
Warm Regards,
Amit Porwal

Multiple instances of app in a single JVM

Hi all,
I saw an article either on the web or in a magazine not too long ago about how to "detect" if the app is already running, and if so, it hands off the new instance to the already running JVM, which then creates a thread to run the Java app in. As it turns out, my app will be used in an ASP environment, through Citrix. We may have as many as 50 to 100 users running the same app, each with their own unique user ID, but all using the same one server to run it on. Each instance eats up 25MB of memory right now. So the question is if anybody knows of a URL or an app like this that can handle the process of running the same (or even different Java) apps in one JVM as separate threads, instead of requring several instances of the JVM to run? I know this article presented a fully working example, and I believe I know enough to do it but I wanted ot use the article as a reference to make sure it is done right. I know that each app basically would use the same one "launcher" program that would on first launch "listen" to a port, as well as send a message through the port to see if an existing launcher was running. If it does, it hands off the Java app to be run to the existing luancher application and shuts down the 2nd launching app. By using this method, the JVM eats up its normal memory, but each Java app only consumes its necessary memory as well and doesn't use up more JVM instance memory.
Thanks.

Anyone have any ideas on this one?

How to deploy multiple instances of WebLogic on the central server,wl6.0

I would suggest 2 domains each of them for it's own purpose, with an admin and a managed server with the same db connection name connecting to its own database. In this case the only difference is the domain name(has to be unique on a physical server) and the ports will have to be different on QA vs DEV. They could share the applications which can be located outside of both domains, but they will have to be deployed separately. if you want to work with different levels of code than you'll need 2 separate directories for storing the applications.
In fact you should test in QA only after DEV is done with development(?!).
In this situation watch the memory allocation as you can affect one of the domains by doing a lot of work/load on the other one.

Log messages from multiple instances in single file.

Hi!
I have a requirement that i need to log messages from muliple instances of the same object in a file. The new file will be created every day. Likewise, multiple objects might have various instances each.
One class
->multiple instances
-> log message stored in single file.
Note :
I am using the Message driven bean. I need to log from the bean class. JDK 1.3
If u could help me out that would be great.

As long as they are all from the same OS program (a single Java VM), that's OK - you can use Log4j, and use a rotating file logger.
If you point two different virtual machine processes at the same file, one may have it open when the other is trying to rotate it, and your rotation may fail (at best) and/or you may lose the old log (the worst case).
If you need to collect log messages from multiple processes (or even multiple machines), use a syslog-based logger (Log4j has a SyslogAppender) or use Log4j's SocketAppender to write to a log4j-builtin log listener (SocketNode).

Sql server with multiple instance

hi All,
i want to install sql server with two instance and i want to assign two separate is ips for both default instance and named instance and both should work like
two different server
note: If i logged with one ip(default instance) it should show its own databases not both or named instance databases
thanks
chintala

Hi chintala,
According to your description, if you want to assign the two different IP to stand for default instance
and named instance, I recommend you set up aliases on a SQL Server with multiple instances. For example, a physical server is named WinServer and 2 instances of SQL Server named WinServer and WinServer\instance1.
We need to add 1 IP addresse to the WinServer, there is one IP address already assigned to WinServer, 192.168.1.1, by adding one new IP's, 192.168.1.2 .
We need to move into DNS to configure our host names and aliases. The physical machine must be steup as a static IP in DNS. SQLAlias1, which point to the default instance on WinServer, will be setup as a DNS with an address of 192.168.1.1.
SQLAlias2, which will point to WinServer\Instance1, will be setup as a new Host (A) record in DNS with an address of 192.168.1.2.
When everything has been completed on the DNS side, you need to open up SQL Server Configuration Manager on WinServer and configure the protocols for each instance one at a time, restart the 3 SQL services.
For more information about how to set up aliases on a SQL Server with multiple instances, you can review the similar article.
http://kevine323.blogspot.com/2013/08/setting-up-aliases-on-sql-server-with.html
Regards,
Sofiya Li
Sofiya Li
TechNet Community Support

Multiple instances of VBAI

I know that we can now acquire from multiple cameras in VBAI (thanks!). However, I feel that doing so leads to very complex inspection sequences. It does not look like VBAI has fully embraced parallelism for things other than FTP transfer. What do I do if I have 5 GigE cameras that each must be triggered, and where it is possible that two could be triggered at the same time? Can I run multiple instances of VBAI on a single PC (hey, it's multicore)? I predict that the current answer is to just use LabVIEW, but VBAI is mostly LabVIEW.... right?
I would like to maintain only the simple, single-camera, inspections on the PC. Running multiple VBAI instances would allow me to dedicate an instance to each camera without worrying about what is going on wth the other 4 (or more).
No, I haven't tried to do this yet. Currently, I am out of town and away from my vision lab. I figured that if this is possible, it is worth mentioning to the public, and if it is not then it is worth mentioning to R&D. The system I am picturing would be a future version of a system we just completed where we had 4 NI Smart Cameras and one GigE camera. The question came up about what to do if all 5 cameras were GigE. Don't worry, we still love the SmartCams!
On a posting streak,
Dan Press
PrimeTest Automation
Solved!
Go to Solution.

FYI, feedback to Marketing / Product Development from an industrial user of several brands of vision systems...
I agree that it would be very useful to be able to run multiple instances of the VBAI application! Since each one would run in it's own process space, you could:
- Shut down individual inspections for program adjustments without affecting others that may be in the same program on different cameras.
- Make the programs simpler and easier to understand without as much branching logic.
- Make the NI software a better value, by allowing people to use 1 piece of generic hardware instead of multiple dedicated processors. (PC, CVS, SmartCamera, etc) This would make the NI software a more attractive choice for applications where we currently buy lower cost Banner, DVT, or Cognex units or if more power is needed-- an easier to maintain Keyence unit.
Currently IMO, because of the difficulties and expense involved with licensing, software version dependencies, and working with the NI hardware in general, I only consider NI where the additional functionality/flexibility is required. I have had good luck with PC-based applications of VBAI. If I could use an off-the-shelf industrial PC and run inspections in parallel-- making it easier to maintain and lowering the average cost per inspection, I probably would reconsider.
Thanks,
Mike

Multiple instances in Oracle 9i

Hi All!
In Oracle 9i, if I have 2 databases on the same server, does that mean I have 2 different instances , one for each database, OR the concept of multiple instances is only in te parallel server?

I suppose it depends on your definition of the terminology.
Here is Oracle's definition of each:
Instance: Consists of the SGA Memory structure and background processes used to manage a database. An instance is identified byusign methods specific to each operating system. The instance can open and use only one database at a time.
Database: An Oracle database is a collection of data that is treated as a unit. The general purpose of a database is to store and retrieve related information. The database has a logical structure and a physical structure. The physical structure of the database is the set of operating syste files in the database. An Oracle database consists of three files types: Data files, Redo Logs, Control Files. (note: parameter file, password file, and archive logs are not considered part of the database)
So to answer your questions, if you have two separate Oracle instances on your machine, I would say you have both two instances and two databases.

Multiple instances of weblogic pointing to same public_html

Hi,
I am using Weblogic 5.1 and have successfully set it up to start multiple instances
of weblogic from one weblogic server(each instance has its own unique port).
Currently I have multiple instances of public_html (one for each instance). Does
anyone know what I have to do to point all instances of weblogic to a common public_html?
Many thanks in advance
Dipen

create a symbolic link that is called public_html that points to the common
docroot.
"Dipen" <[email protected]> wrote in message
news:3b7cf1bf$[email protected]..
>
Hi,
I am using Weblogic 5.1 and have successfully set it up to start multipleinstances
of weblogic from one weblogic server(each instance has its own uniqueport).
Currently I have multiple instances of public_html (one for eachinstance). Does
anyone know what I have to do to point all instances of weblogic to acommon public_html?
>
Many thanks in advance
Dipen

Multiple instances not starting using Windows services

Hi,
We have two Oracle instacnes installed in same oracle home. They are not starting using windows 2000 service manager.
I have to go to svrmgrl and set the ORACLE_SID environment variable to startup each instance. How can I make them start through windows Services instead of manually doing it.
Is installing multiple instances in same home a good idea?
These multiple instances are not part of paralell server.
Regards,
Wasim.

Hi,
I have checked the registry keys and everything looks ok.
ORACLE_instance_AUTOSTART is true
ORACLE_instance_PFILE is correct
ORACLE_instance_SHUTDOWN is true
ORACLE_instance_SHUTDOWNTYPE is i
Above values are right for both instances. I even have recreated the services using ORADIM. I can start both instances by going to command prompt set ORACLE_SID and start the instance using SVRMGRL. But they'll not autostart when the machine is rebooted.
Regards,
Wasim.

Multiple Instances of OEDQ on a single server

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