CNR: Two cnr instances in the same server (lab environment)

Hello, we are trying to install two cnr 7.2 intances on the same server in order to replicate in lab the real environnment (failover local cluster) without deploying two servers.
I've seen on the installation guide that installing both a local and regional server on a single machine is supported, but what about two local servers working as a failover pair?
up to date, we've managed to install both installs, the dhcp servers are configured for using different interfaces and web gui are listening in different ports. scp ports have been changed (1234 and 4321 ) and, on dhcp-server expert configuration: failover-remote-port and failover-port are configured to be different (677 - 678 in one , and 678 - 677 in the other)
We can manage both servers from DHCP - failover configuration, as they show up and running, and even see logs... The other configs are
When trying to syncronize we get the error
"ChangeSet list is empty."
is this configuration supported?
best regards!

user10127912 wrote:
Hi,
We are planning to install second instance of Oracle 11gR2 in Linux server 2.6.39-400.21.1.el6uek.x86_64 x86_64. This is something we never haven done before. If you have such experience, please give us some insight.
The existing instance has all the standard ports:
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
Enterprise Manager Console HTTP Port (pterpdb02) = 1158
Enterprise Manager Agent Port (pterpdb02) = 3938
What ports should we select for second listener and enterprise manager? Is there anything else that we need to know before we install the second instance?If you want a second database instance, no additional installation is required - as long as you want to run the second instance at the same version as the the first. Just fire up dbca and create the second database. One installation of Oracle (one ORACLE_HOME) is capable of supporting many database instances, though the same may or may not be said of the hardware it is running on.
As already said, one listener is enough. One listener, running from one oracle home, using the default name of LISTENER, running on the defualt port of 1521, is quite capable of -- indeed, WAS DESIGNED TO, supporte multiple database instances of multiple versions running from multiple ORACLE_HOMEs.
One instance of dbcontrol/dbconsole will support only one database. If you do not use Grid Control (extra installation, extra license) you will need to use the emca utility or one of the options in the dbca utility to configure a seperate instance of dbcontrol for each database. Don't worry about the ports, the creation utility will take care of it and report what it does.

Similar Messages

Two instances on the same server

I've already created one instance on 11g R2 database, but I was told to create another instance on the same server. Can I use the same listener for both instance? Will it cause any problem?
Thanks!
- Johnny

tanww888 wrote:
Thanks for all your responses. I have not dealt with two instances on the same server before. I'll take your advice to start with the same listener for both instances and see if it is causing any issue. My database server is a Oracle Sparc 5120 with plenty of memory and disk space. The second instance that I'm going to create will be much smaller than the first one.
Single or multiple listeners aren't really a factor for performance. Notice that even in Dan's remarks, none of his reasons for multiple listeners had anything to do with performance.
Question, is it easy to create/configure the second listener to point to the second instance? Just in case there is an issue using the same instance.
The listener doesn't "point to" the database - not in the sense you seem to think. It simply watches the ports it is configured to use (1521 by default) for connection requests from clients. When it gets a request it evaluates whether or not it knows about the service (instance) requested, and if it does it spawns a separate server processes to communicate between the client and the db instance, then is out of the way. The listener creates the connection but does not sustain it. You can stop a listener and all existing connection will continue because the listener has no part in maintaining them.
Multiple listeners would be configured by adding LISTENER sections to the listener.ora file. You might find it instructive to realize that if there is no listener.ora, a 'lsnrctl start' will cause a default named listener to start on the default port of 1521. By default, any db instances on that server will register themselves with the default listener on the default port. After this self-registration, the listener will know about the instance if/when it receives any connection requests for it. Let's switch from the telephone analogy to that of a desk clerk at a hotel. He comes to work and is handed a piece of paper that says "We have Tom, Dick, and Harry registered as guests" This would be analogous to the listener learning of instances via the SID_LIST section of the listener.ora file. Then Fred walks up and says "I'm Fred and I'm in room 238", so the clerk makes a note of that. This would be analogous to the instance registering itself to the listener. Either way, then someone walks up and says "Where would I find Tom (or Fred)". The clerks checks his lists and directs the person to the correct room. He doesn't escort the person around to Tom and act as a go-between for their conversation. And hotel management doesn't want to have to pay a separate clerk for each guest.
You might want to read my articles about TNS in general at edstevensdba.wordpress.com. I think they will help you get a clearer understanding.
Thanks,
- Johnny

Can you run multiple APEX listeners for different instances on the same server

Please confirm that we can run multiple APEX listeners for different instances on the same server? Is it an xml setup configuration or do we need to do more??
Thank You,
Tony Miller
SmartDog Services
Austin, TX

Yes.. Just exactly what I was looking for...
Thanks Jari!!
Thank You,
Tony Miller
SmartDog Services
Austin, TX

Is database link only 'valid' for instances in the same server?

Background: We have 5 servers and installed Oracle 7.3 and 8.
Problem: I managed to create database link to other instance in same server; but not to other server. Error message received was :
ORA-02019: connection description for remote database not found
: TNS server name not found
BUT: I managed it with 'copy from ' command in SQL*plus.
Question: Is database link only 'valid' for instances in the same server?
Thanks! ;o)

user10127912 wrote:
Hi,
We are planning to install second instance of Oracle 11gR2 in Linux server 2.6.39-400.21.1.el6uek.x86_64 x86_64. This is something we never haven done before. If you have such experience, please give us some insight.
The existing instance has all the standard ports:
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
Enterprise Manager Console HTTP Port (pterpdb02) = 1158
Enterprise Manager Agent Port (pterpdb02) = 3938
What ports should we select for second listener and enterprise manager? Is there anything else that we need to know before we install the second instance?If you want a second database instance, no additional installation is required - as long as you want to run the second instance at the same version as the the first. Just fire up dbca and create the second database. One installation of Oracle (one ORACLE_HOME) is capable of supporting many database instances, though the same may or may not be said of the hardware it is running on.
As already said, one listener is enough. One listener, running from one oracle home, using the default name of LISTENER, running on the defualt port of 1521, is quite capable of -- indeed, WAS DESIGNED TO, supporte multiple database instances of multiple versions running from multiple ORACLE_HOMEs.
One instance of dbcontrol/dbconsole will support only one database. If you do not use Grid Control (extra installation, extra license) you will need to use the emca utility or one of the options in the dbca utility to configure a seperate instance of dbcontrol for each database. Don't worry about the ports, the creation utility will take care of it and report what it does.

Connecting to two database instances using the same Toplink

Hi,
We are trying to create a process using BPEL where data from one database instance needs to be passed to the other. The process is compiling properly and we could deploy it in BPEL Process Manager. But when we try to run the process, the data is not getting inserted into the second instance. There is no error /exception being thrown at most of the time, but at times we are getting a 'Unique constraint error' eventhough there is no duplication of data.
Can we connect to two different instances using the same toplink. How can we achieve this.
Thanks in advance
Pratheusha

You need to use two different sessions with two different mapping descriptors

Connecting to two database instances from the same TopLink

Hi,
We are trying to create a process using BPEL where data from one database instance needs to be passed to the other. The process is compiling properly and we could deploy it in BPEL Process Manager. But when we try to run the process, the data is not getting inserted into the second instance. There is no error /exception being thrown at most of the time, but at times we are getting a 'Unique constraint error' eventhough there is no duplication of data.
Can we connect to two different instances using the same toplink. How can we achieve this.
Thanks in advance
Pratheusha

You need to use two different sessions with two different mapping descriptors

Multiple application instance on the same server instance

Can we have multiple instances of the same application on a single WLS?? For ex, can I have two app.ear files in different application directories??

Hi Nilesh,
Can you please clarify your landscape as this will help in getting answers to your question.
In general adding instances (and/or server nodes) should be considered for increasing capacity rather than impoving performance. Specifcially, adding instances (and/or server nodes on the same host you risk a situation where the processes compete for resources which will have a negative effect on performance. If you do need to combine instances on the same host, make sure there is enough hardware (specifically memory in case of JAVA).
Hope this helps,
Best regards, Walter

Dbconsole with multiple instances on the same server?

Hi!
I have a LINUX server running 2 separate instances - csp1 and csp2. I have a repository in csp1 and the dbconsole running for csp1. Now I need to find out if / how I can get the dbconsole running for the csp2 instance. This is Oracle standard edition 10.2.0.4. Both instances share the same Oracle Home and Listener. A second Oracle Home has the companion CD (http server) installed in it and has no instances associated with it.
Does anyone have information on how to do this? Here are some of my questions:
1) Do I need separate repositories for each instance or can the repository in csp1 be used for both instances?
2) Can the ports be shared or do I need to assign new port #'s for the 2nd instance? How / where do I do this?
Any hints, tips, suggestions, etc. are greatly appreciated!
Dave Venus

1) Do I need separate repositories for each instance or can the repository in csp1 be used for both instances?
Yes, in the free version of EM in 10g ie DB console,that's the restriction. You can't use it for more than one database. It has to be done explicitly for that another database whom you want to manage via it. So as per the answer, yes you do need a seperate repository for your second db. The other db will be in the same Oracle home and surely its em repository can work with the existing listener.But it does require its own set of config files which will be in a sperate folder under Oracle Home with its sid.
2) 2) Can the ports be shared or do I need to assign new port #'s for the 2nd instance? How / where do I do this?
As I mentioned in my last reply, you wouldn't be able to share the port that is already in use. You do need to have a seperate port configured. Normally when you would install the repository oracle would pick up itself a port number. The valid port range , if I remember correctly is from 5500 onwards ( I don't remember the last limit). Even afterwars, you can change the port using "emca" command.
Edit:
I forgot to mention that some time back, here on the forums, I had a discussion with a guy who mentioned that there is a workaround possible to add a target in the current Targets.xml for the second database. I did try it out but still that didn't give me two instances. The most recent one which I added only was accessible.
Update:
I did find that thread,here it is. See if this helps you,
Re: control two database with one database control
HTH
Aman....
Edited by: Aman.... on Oct 28, 2008 7:14 PM
Added Edit
Edited by: Aman.... on Oct 28, 2008 7:28 PM
Added thread

Communication between Two WebLogic instances on the same machine

Hi,
We're having a problem with communication between two copies of Weblogic on
the same machine. They are configured with seperate ports (regular and SSL).
Independantly, they run fine. I can access EJBs running on either of them.
The problem is that a bean in one of them has code which attempts to access
an EJB on the other one. The procude fails when trying to obtain the initial
context. This same code works if compilied independantly of WebLogic on the
same machine.
Are there any known issues regards communication between two running
instances of Weblogic on the same machine?
Thanks in advance,
Randy Yarger
marchFIRST
[email protected]

Thanks for the prompt reply.
There is one IP address (internal address 10.227.1.34) one the machine. WLS1
is set up at ports 7001 and 5133. WLS2 is setup at ports 7004 and 7005.
When WLS1 attempts to obtain a context to WLS2 with the URL
t3://10.227.1.34:7004/ it pauses for a long period of time. Running truss
on the both WLS processes shows communication occuring between the two
followed by long periods of silence. Finally WLS2 spits out the error
ConnectionException[7001,7001,5133,5133,7001,7001] (paraphrased, I can get
the entire error if it would help).
After another long pause, WLS1 quits trying with the error 'Server
10.227.1.34:7004 not found' (again paraphrased).
Among the things we've tried:
* Changing the URL from the IP to 127.0.0.1
* Enabling/disabling SSL on either or both WLSs.
* Changing the server name in WLS2's copy of weblogic.properties from
'myserver' to 'myserver2' (previously they were both 'myserver')
* Upgrading WLS2 to 5.1.0sp5 (Tried upgrading WLS1, but was getting class
not found errors and quit because that WLS is being used by other people)
This is a Solaris server. WLS1 is running 5.1.0 and WLS2 is running 5.1.0sp5
Any suggestions would be appreciated.
Best,
Randy Yarger
marchFIRST
[email protected]
"Michael Girdley" <[email protected]> wrote in message
news:[email protected]...
>
>
There should not be. What is your network configuration? Are they on
separate IP addresses?
Thanks,
Michael
Michael Girdley
BEA Systems Inc
"Randy Jay Yarger" <[email protected]> wrote in message
news:[email protected]...
Hi,
We're having a problem with communication between two copies of Weblogicon
the same machine. They are configured with seperate ports (regular andSSL).
Independantly, they run fine. I can access EJBs running on either of
them.
The problem is that a bean in one of them has code which attempts toaccess
an EJB on the other one. The procude fails when trying to obtain theinitial
context. This same code works if compilied independantly of WebLogic onthe
same machine.
Are there any known issues regards communication between two running
instances of Weblogic on the same machine?
Thanks in advance,
Randy Yarger
marchFIRST
[email protected]

Two Essbase instances on the same box

Hi folks,I was wondering if it is possible to have two instances of Essbase running on the same box (Win 2K server). We want the dev and the test environments to be logically seperate but physically on the same server.Thanks a lot for your help.

It depends on the version of Essbase you are using. If you are on 6.2 or above, you can change the default listening port for the Essbase agent and application server processes, which allows you to have multiple instances on the same box.An easier way to run multiple servers on one box might be to use technology like VM Ware or Microsoft Virtual PC - they allow you to create a virtual machine which can have its own Essbase install, with your production Essbase environment running on the "base" OS.RegardsJade-------------------------------------Jade ColeSenior Business Intelligence ConsultantClarity [email protected]

Can i judge the two runtime instance are the same handle?

can I judge the two instance is the same handle, just like in C++ to get their address by "&" for compare?
if yes, how?
thanks in advance
Frederick

Integer a = new Integer(7);
Integer b = new Integer(7);
boolean sameValue = (a.equals(b)); // true
boolean sameInstance = (a == b); // falseJust in case jsalonen's answer was a bit terse.

How do I install two instances on the same Server and avoid a conflict?

Hi,
I have one Server and I want to install two instances of SQL Server on it.
1. Will be a default instance.
2. Will be a named instance.
The Server has an IP address of 192.168.0.10 and the default instance will be using port 1433.
I want them to share the same address, but be listening on different ports.
Do I,
1. Go into TCP/IP of the named instance and set the port numbers for all the IP's to a port number, e.g. 1976?
2. Delete the 0 from the dynamic ports sections?
3. Create an open port rule in the Windows Firewall to allow access to the Server?
Thanks

Hi,
Please see following Microsoft link
Configure SQL Server to listen on Specific port
Configure Windows firewall to allow SQL Server access
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it.
My TechNet Wiki Articles

How to install PI instance on the same server that has Solution Manager 4?

I am planning to install PI 7 on a windows 2003 server that has Solution manager 4 running on it already.
I am planning to install an additional Oracle instance and put PI on it.
What are the steps involved?
Please advise.
Thanks and regards,
Bhaskar

Barry,
I went throught this link when I firt tried MCOD. may be the mistake I did was that I tired installing two separate instances like Sol Man and XI into the same oracle database. it used to fail at the step of Creating table Spaces.
I tired this when I saw some docs on MCOD (I think from IBM).
May be the approach was wrong.
Let me try this new method of installing two different Oracle instances and put Solution manager on one and XI on the other.
I will update you some time today.
Thanks for the help so far.
Regards,
Bhaskar

Clustering multiple instances on the same server

I've read reports of people clustering multiple instances of weblogic on the
          same machine to better utilize the CPU of that machine.
          So if I wanted to set up a cluster with four machines and two instances of
          weblogic running on each (port 7001 and port 8001) , what properties do I need
          to send into the startup command for the servers?
          How do you set this up
          Thanks in advanced.
          -rrc
          Russell Castagnaro
          Chief Mentor
          SyncTank Solutions
          http://www.synctank.com
          Earth is the cradle of mankind; one does not remain in the cradle forever
          -Tsiolkovsky


Do this for all your four machines
          1) Create dirs: cluster1, cluster2 under %WEBLOGIC_HOME%
          2) Create dirs: cluster1\myserver, cluster2\myserver
          3) create two startup scripts,
          specify -Dweblogic.cluster.enable=true -Dweblogic.cluster.name=cluster1 (or
          cluster2) in each script.
          4) Speicfy weblogic.cluster.multicastAddress=IPAddr in
          cluster1\weblogic.properties & cluster2\weblogic.properties, use different
          IPAddr for these two cluster.
          5) Specify weblogic.system.listenPort=7001 in
          cluster1\myserver\weblogic.properties & weblogic.system.listenPort=8001 in
          cluster2\myserver\weblogic.properties
          6) If your machine is multi-homed, specify weblogic.system.bindAddr in
          cluster1(and/or cluster2)\myserver\weblogic.properties.
          my 2cents.
          Cheers - Wei
          Russell Castagnaro <[email protected]> wrote in message
          news:[email protected]...
          > I've read reports of people clustering multiple instances of weblogic on
          the
          > same machine to better utilize the CPU of that machine.
          >
          > So if I wanted to set up a cluster with four machines and two instances of
          > weblogic running on each (port 7001 and port 8001) , what properties do I
          need
          > to send into the startup command for the servers?
          >
          > How do you set this up
          >
          > Thanks in advanced.
          > -rrc
          > --
          >
          > Russell Castagnaro
          > Chief Mentor
          > SyncTank Solutions
          > http://www.synctank.com
          >
          > Earth is the cradle of mankind; one does not remain in the cradle forever
          > -Tsiolkovsky
          >
          >

Multiple Tomcat instances on the same server

Can we have multiple tomcat instances load balanced on the same physical box without VM. Has there been any such implementations. How can CMS be distributed across. What can the know architecture for the same.
Regards
Vijsy

This can be done, but it really depends on the load balancer you use.
There is no recommendation from BusinessObjects and you might want to consult the load balancer vendor for instructions and support.
Regards
Caroline

CNR: Two cnr instances in the same server (lab environment)

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