Cluster on one machine?

This may sound weird, but I am trying to setup a cluster on one machine. it has 2 nic's, I can assign 2 IP Adresses. The reason behind this, is we need to do testing in a clustering environment, but we don't have any spare machines for this.
The hardware is Sun 250, 2 NICS running Solaris 2.7.

use ..
          weblogic.system.bindAddr = <ip_address>
          to any one of your weblogic.properties file .....
          That will make sure that blogic starts up only binding to that ip.
          "Kevin Enslow" <[email protected]> wrote in message
          news:39b5953e$[email protected]..
          > This may sound weird, but I am trying to setup a cluster on one machine.
          it has 2 nic's, I can assign 2 IP Adresses. The reason behind this, is we
          need to do testing in a clustering environment, but we don't have any spare
          machines for this.
          >
          > The hardware is Sun 250, 2 NICS running Solaris 2.7.

Similar Messages

Can I cluster servers on one machine?

          If I started a few WebLogic servers on one machine (each with a different port
          number), can I put them in a cluster (since they do not have the same port number)?
          If yes, how can I address the cluster?
          Thanks!
          --Zhenxin Wang
          [email protected]


see my previous post for steps on how to setup clusters on single nt server.
          "Mike Reiche" <[email protected]> wrote in message
          news:3b09d0c9$[email protected]..
          >
          > Yes you can have a cluster of wls servers running on a single machine.
          >
          > No, you cannot do it by running them on different port numbers - they must
          use
          > the same port number and a different IP address.
          >
          > On Solaris, you can add IP addresses using the ipconfig command.
          >
          > Mike
          >
          >
          > "Zhenxin Wang" <[email protected]> wrote:
          > >
          > >If I started a few WebLogic servers on one machine (each with a different
          > >port
          > >number), can I put them in a cluster (since they do not have the same
          > >port number)?
          > >If yes, how can I address the cluster?
          > >Thanks!
          > >
          > >--Zhenxin Wang
          > > [email protected]
          >

How to Delete the node from cluster when the machine crashed?

In an three nodes Rac of 11g r2,How to delete the node from cluster when the machine crashed?
There is now way to repair the machine and have to add a new one.
What is step to follow up?

hi
IF YOU WANT TO DELETE RAC1 NODE
check $./olsnodes
1) delete the instance using dbca from any active nodes
crs_stat -t
srvctl stop asm -n rac1
2) delete listener
3) delete oracle_home from oracle user
$ORACLE_HOME/bin/runInstaller -updatenodelist ORACLE_HOME=<db_home> "CLUSTER_NODES={RAC1}
4)delete asm home
$ORACLE_HOME/bin/runInstaller -updatenodelist ORACLE_HOME=<asm_home> "CLUSTER_NODES={RAC1}
5) update cluster node
$ORACLE_HOME/bin/runInstaller -updatenodelist ORACLE_HOME=<db_home> "CLUSTER_NODES={active nodes like rac2,rac3}
6) update ASm home
$ORACLE_HOME/bin/runInstaller -updatenodelist ORACLE_HOME=<asm_home> "CLUSTER_NODES={active nodes like rac2,rac3}
cd $ORA_CRS_HOME
cd crs/opmn/conf
check for
$cat ons.config
remoteport=6200
cd crs_home/bin
$./racgons remove_config rac1:6200
$ go to crs home
and $ORA_CRS_HOME/crs/install/rootdelete.sh
$ORA_CRS_HOME/crs/install/rootdeletenode.sh
check for ./olsnodes

Creating multiple http servers on one machine

I created multiple http servers on one machine.
I did this in the following way:
Created a http service as nt service with the following command:
apache -i -n Testservice -f d:\oracle\isuites\apache\apache\conf\httpd2.conf.
When I start the service, I always get an error:
Didn't return an error. Cannot start service.
Can someone help me.
I need two httpd services as nt service. Because, I want to use oracle fail safe. So I need a service.
Alternative : I can create batch files. But I want to start these batch files as nt service. Is there a possibility on
Windows nt to do this, or an available tool.
Thanks in advance,
Iloon

          "Jason Rosenberg" <[email protected]> wrote:
          >Hello,
          >
          >I am wondering about having multiple servers on one machine.
          >I take it, each server will require a unique ip address, which can
          >be done either by using multiple NIC's or using multi-homing.
          If you want to have multiplie servers in the same machine and you want to cluster them then you need ip for each instance.
          If you want multiple instances without clustering, then you can have them run on the same ip but each one should have a different port.
          >
          >I am asking because I am wondering whether it will always be valid
          >for me in servlet code to identify my current server instance by
          >ip address (InetAddress). Or is there a better way to do this?
          If you are accessing the ejb/services on the same server using a servlet. You can get the context, simply using the default getInitialContext(). This should return the context to the local machine. This shoudnt require any ip information.
          >
          >Jason
          >
          >

Constantly "Cluster resource 'Virtual Machine' in clustered service or application 'SERVER' failed

Hi...
I have an IBM BladeCenter S with 3 blades and an IBM System Storage DS3300 (ISCSI).
In each blade is running Windows Server 2008 R2 with
HYPER-V,
Failover Clustering with Cluster Shared Volumes.
I have observed that many errors occur constantly in "Failover Cluster Manager" and some VM´s are relocated to another blade automatically, however thoses VM´s sometimes no longer responds to network activity.
The errors I have observed in the "Failover Cluster Manager" are:
Source: Microsoft-Windows-FailoverClusting
Event ID: 1069
Description:
Cluster resource 'Virtual Machine' in clustered service or application 'SERVER' failed.
Source: Microsoft-Windows-FailoverClusting
Event ID: 1205
Description:
The Cluster service failed to bring clustered service or application 'SV-DBURAS' completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered service or application.
Another error (warning type) that is constantly generated in the SYSTEM events (Mirage is the storage name):
Source:        ds4dsm
Event ID:      769
Description:
IO error being retried via alternate controller Mirage:1
Source:        ds4dsm
Event ID:      10
Description:
Mirage:0 Failover command issued.
Source:        ds4dsm
Event ID:      801
Description:
Failover succeeded to Mirage:0.
Thank you in advance any help!

Hi,
I suggest referring to the following articles:
http://technet.microsoft.com/en-us/library/cc756225(WS.10).aspx
http://technet.microsoft.com/en-us/library/cc773525(WS.10).aspx
Tim Quan - MSFT

Compensating for JMS on one machine

          So i'm still coming up to speed on clustering with Weblogic,
          and I have a few questions.
          1) how (if at all) are people compensating for the reliability
          issue raised by running JMS on only one machine in the cluster.
          2) is there a way to make prevent the one machine running JMS
          from performing any tasks normal other than JMS? ie: prevent
          it from accepting EJB requests, JSP request, etc. & have it
          focus only on JMS (arguably to reduce the chances that some
          errant code unrelated to JMS might bring the system down
          thus choking the rest of the cluster)
          3) Does weblogic have plans to make JMS a clustered service?
          thanks,
          jason


Joel,
          Just to clarify... So, by suffixing qnames with unique ids you are
          effectively trying to mimic load-balancing by the clients, since Nodes ids
          are going to be known to the client apriori. Is it correct?
          Thanks
          Daniel Ilkanayev
          [email protected]
          Joel Nylund <[email protected]> wrote in message
          news:[email protected]...
          > Hey Jason,
          >
          > some people from weblogic in the past have recomended putting all your
          > q's in one of the boxes on the cluster. I dont think this is a good idea
          > since you loose one of the benefits of clustering when you do this
          > (fault tolerance).
          >
          > One idea I have used is to put the same queues in each server. If one
          > server goes down, the messages will be left on the queue (if they are
          > persistent). If you couldnt get the server back up in a reasonable
          > amount of time you could always point another server or process at those
          > q's and consume them. One problem I have had with this approach is that
          > even though weblogic claims jms is not a clustered service, they have
          > compiled their stubs with replication on (at least in 4.5.1 sp7). This
          > causes problems if you use the same jndi name for q's. You will see the
          > conflit handler go nuts if you have 2 servers with the same q name. We
          > have worked around the problem by suffixing our qnames with uniqe ids, I
          > think this will work (going to test tonight).
          >
          > If anyone else has any better ideas for using jms in a enterprise system
          > with fault tolerance and load balancing, please let me know.
          >
          > -Joel
          >
          >
          >
          > Jason Mellein wrote:
          >
          > > So i'm still coming up to speed on clustering with Weblogic,
          > > and I have a few questions.
          > >
          > > 1) how (if at all) are people compensating for the reliability
          > > issue raised by running JMS on only one machine in the cluster.
          > >
          > > 2) is there a way to make prevent the one machine running JMS
          > > from performing any tasks normal other than JMS? ie: prevent
          > > it from accepting EJB requests, JSP request, etc. & have it
          > > focus only on JMS (arguably to reduce the chances that some
          > > errant code unrelated to JMS might bring the system down
          > > thus choking the rest of the cluster)
          > >
          > > 3) Does weblogic have plans to make JMS a clustered service?
          > >
          > > thanks,
          > >
          > > jason
          >

How to create two or more JVM in one machine ?

Hi to some background ,I want to invoke RMI call to a server ,and I have written the following client code ,that access a getCounter()to show the incremented static variables value ,each time calling the getCounter() will increment the static variable by 1.That code is deployed in the server.
PDOS_Remote_Interface service1 =(PDOS_Remote_Interface)Naming.lookup("rmi://x.xxx.xxx.xxx/REMOTE_SERVICE");
String s1= service1.sayHello();
int cont1 = service1.getCounter();
System.out.println(">>>>>> "+s1);
System.out.println(">>>>>> cont1 "+cont1);
PDOS_Remote_Interface service2 =(PDOS_Remote_Interface)Naming.lookup("rmi://y.yyy.yyy.yyy/REMOTE_SERVICE");
String s2= service2.sayHello();
int cont2 = service2.getCounter();
System.out.println(">>>>>> "+s2);
System.out.println(">>>>>> cont2 "+cont2);
This is working fine with even two different server (I mean in two physically different machine(x ip and y ip) ,there ip are different )
with following output :
Server Says Hai!
cont1 0
Server Says Hai!
cont2 0that is static variable is not shareing as they are in two different server
Now My problem:
I want to hit the one and only server ,In this case Service1 and Service2 are getting the remote instance from only one machine .And when I am doing that I am getting the static variable incremented ,That is following output
Server Says Hai!
cont1 0
Server Says Hai!
cont2 1Is this possible to create two JVM instance in a particular machine ..??
I mean I want the first output (both static variable shows 0)in second implementetion (using only one machine )???

Yes, but the naming service is only going to accept one registration for a given name.

How to handle sessions with two severs on one machine?

All,
I am having a problem with session cookies being overwritten when I host two apps on one machine running WebLogic 8.1 The apps are http://myserver:7300/app1 and http://myserver:7400/app2, and each runs in its own server.
Users will often access both apps at once, in two browser windows. If the windows are different threads in the same process, the sessions collide. For Internet Explorer, this isn't usually a problem since clicking on the shortcut multiple times launches different processes by default. Some browsers (Firefox, etc.) won't let you have two windows under different processes. Attempts to launch a second window 'detect' the existing process and appear to spawn a new thread. When this happens there appears to be no way for the users to use both apps at once.
I know this is happening because of the way session cookies are stored in the browser process' memory. The session cookies appear to me to be 'keyed' by the host name or ip address of the server. Does anyone know of a setting in WebLogic so that this 'key' includes the port or context root? Is this even something which can be controlled on the server side?
Thanks for any help,
Brian

Not quite sure what your intent is, but if you want to avoid a clash how
about giving each application a different default session cookie name.

Have multiple iTunes libraries on one machine?

Hi,
I want to have multiple iTunes libraries on one machine (with two different hard drives, internal fore mp3s and external for AAC files). One library is composed of mp3s for an iPod, I want the other library to have AAC audio files for burning CDs. I would rather the libraries not be mixed.
I have read the article (#301748) for migrating an iTunes library and am preparing to migrate one of the libraries on to a external hard drive.
I have read about using Libra to maintain two different libraries on one machine. I was wondering if anyone does this and if they have encountered any problems? Is there a better solution?
Thank you,
TPK

It's one thing to want two music libraries on one machine and another to want two music libraries on one user account. For the latter, here's what I've done.
I created folders in my iTunes folder called, say, Main Library Folder and Second Library Folder. (These could be anywhere you find convenient.) I dragged my regular iTunes Library file into the Main Library Folder. Then I opened iTunes and created my second music library. When I finished that, I closed iTunes and dragged the just-created iTunes Library file into the Second Library Folder.
If I want to use my main iTunes library, before opening iTunes I drag an alias (Cmmd-Option-drag) of the iTunes Library file from the Main Library Folder into the iTunes folder. Then, when I open iTunes, iTunes reads my main library file. And of course, it works the same way for the second library.
Of course, you could just shuffle the actual library files into position in the iTunes folder from their holding areas, but I strongly preferred to get myself into the habit of relying on aliases, so I could leave the actual library file alone in their respective folders. You most definitely would not want to accidentally overwrite one of your iTunes Library files.
I'm sure one of the shareware products would do a more elegant job, but this just shows you that it's not a difficult process.
The alternative is to set up separate user accounts to access different libraries on the same machine. This has real benefits and, to me, should be the first option one considers. It's easier on the brain, as it sticks to iTunes' one-user-one-library model, and there's absolutely no risk of getting libraries confused. Fast User Switching on the Mac makes going back and forth between accounts easy. But if you really want to avoid using different accounts, and it's only you that has to keep things straight, the approach of jumping back and forth between different libraries in the same user account should be OK.

Multiple version of Java on one machine

Is it possible to have multiple versions of Java co-exist on the same XP Pro machine?
Here is our scenario: we have apps that use Java 1.5, but we have one critical app that doesn't support that version yet. It has to use the 1.4 version. Is there a way to allow both versions to exist and be usable for their respective apps? If so, how?
Thank you.

I can't, however it's never a good idea to have
multiple versions of Java on one machine. Try and
standardise if possible. If OP used JAVA_HOME as you
often suggest, then he would be knackered wouldn't
he? JAVA_HOME can only point to one JDK. Your
advice is conflicting kaj.Nope. JAVA_HOME should always be defined in the start script/file for a java application, so it's not set per system. It's very common that companies have applications that requires different JDK/JRE versions, and it's usually very expensive to upgrade all applications (if it's possible at all). You can of course also alter the PATH variable if you want to in the script.
/Kaj

Need to run multiple copies of portal on one machine

This is a little involved to explain so I'll try to be clear.
Right now we have multiple developers working on our single copy of our portal
running on one machine at another location. No good can come of this and much
bad has already happened.
What we need is to be able to run different copies of our portal on different
ports on that same machine. Making a copy of the domain, changing the port and
java.io.tmpdir just confuses the first server started when the second one goes
RUNNING. Changing the Web Application name doesn't help either.
It looks like it's only our stuff that gets cornfused when I set up multiple servers
(user_projects/someDomain, user_projects/someDomain2) or multiple Web Apps (someDomain/beaApps/portalApp/webApp1,
someDomain/beaApps/portalApp/webApp2) since I can log into the console just fine.
The Big Idea is that we need each developer to have their own sandbox to play
in along with a demo/test copy of our software.
I've dug through the BEA docs and these news groups and have not found anything
that directly pertains to our situation. The BEA docs are particularly thin on
information pertaining to dealing with more than one developer or deploying to
remote machines.
Here are some of the particulars and constraints of our setup.
We are running WebLogic Platform 7.0.0.0 on a Solaris box at another physical
location. All access is via network. We have no root access for a variety of
reasons.
Oracle is used for our JDBC. No Pointbase.
Our WebApp has a servlet as the starting point.
We deploy an exploded version of our servlet and JSPs for convenience.
We edit and compile our java source on Windows boxes and FTP the .class and .jsp
files up to their proper places on the server.
Naturally, the ideal solution would be to have more than one machine for a server.
Right now we don't have that option.
Thanks for any help that you can give,
Jon Davis

Travis,
We tried something very similar to that. We're using WebLogic Platform 7.0.
We only have one login on this Solaris box.
I copied our domain (${HOME}/bea/user_projects/somePortal) to another directory
(${HOME}/bea/user_projects/somePortal-devel) and changed the relevant XML files
with regards to ports and installation directories.
Maybe the UID that each server runs as is the difference........
Maybe an earlier version of the products are more tolerant of this and what we're
experiencing is a "feature".
At least I know that my initial approach wasn't such a bad idea :)
Thanks,
Jon
"travis wissink" <[email protected]> wrote:
>
Jon,
We do this with very little issues. I’ll take a stab at putting this
into words.
I suggest that you have the developers run their own instance from their
own Solaris
user home directory. So in /home/travis make a directory bea/app (/home/travis/bea/app)
in the bea/app directory copy the applications, bin, StartPortal.sh,
StopPortal.sh,
and config directory from your current application, probably /opt/bea/wlportal4.0/.
Then make sure that your scripts (in the developers home directory)
all reference
jar files in the /opt/bea/{wlportal4.0 and wlserver6.1} directory's.
Next go
through the /home/travis/bea/app/config/portalDomain/{config.xml & *.sh},
/home/travis/bea/app/bin/unix/*.sh,
and /home/travis/bea/app/application/portalDomain/{applicationDir}/WEB-INF/web.xml
and start and stop scripts to change all “application” directory references
to
relative pathing from the /home/travis/app/bea directory also change
all references
of the 7501 and 7502 ports to another port for each developer.
Hope this is readable and helps
-travis
"Jon Davis" <[email protected]> wrote:
This is a little involved to explain so I'll try to be clear.
Right now we have multiple developers working on our single copy ofour
portal
running on one machine at another location. No good can come of this
and much
bad has already happened.
What we need is to be able to run different copies of our portal ondifferent
ports on that same machine. Making a copy of the domain, changing the
port and
java.io.tmpdir just confuses the first server started when the second
one goes
RUNNING. Changing the Web Application name doesn't help either.
It looks like it's only our stuff that gets cornfused when I set upmultiple
servers
(user_projects/someDomain, user_projects/someDomain2) or multiple Web
Apps (someDomain/beaApps/portalApp/webApp1,
someDomain/beaApps/portalApp/webApp2) since I can log into the console
just fine.
The Big Idea is that we need each developer to have their own sandbox
to play
in along with a demo/test copy of our software.
I've dug through the BEA docs and these news groups and have not found
anything
that directly pertains to our situation. The BEA docs are particularly
thin on
information pertaining to dealing with more than one developer or deploying
to
remote machines.
Here are some of the particulars and constraints of our setup.
We are running WebLogic Platform 7.0.0.0 on a Solaris box at another
physical
location. All access is via network. We have no root access for avariety
of
reasons.
Oracle is used for our JDBC. No Pointbase.
Our WebApp has a servlet as the starting point.
We deploy an exploded version of our servlet and JSPs for convenience.
We edit and compile our java source on Windows boxes and FTP the .class
and .jsp
files up to their proper places on the server.
Naturally, the ideal solution would be to have more than one machine
for a server.
Right now we don't have that option.
Thanks for any help that you can give,
Jon Davis

Can I use two different devices with different apple ID for backing up data on one machine without losing any data that was backed up with one device earlier?

Can I use two different devices with different apple ID for backing up data on one machine without losing any data that was backed up with one device earlier?

The link is to a discussion started on 12/18 in the FiOS Internet forum. Here's the link I get now, however it is different than the link I pulled a few hours ago. If this system changes the link again, it may not work.
http://forums.verizon.com/t5/FiOS-Internet/Frustration-and-just-confused-with-internet-help-please/t...
You can also look for the topic, "frustration and just confused" in the FiOS Internet forum.
Here's a link that is in the thread that gives more detail.
https://secure.dslreports.com/faq/15984
Good Luck!
P.S. "Copper Contributor" is my "rank." gs0b is my user name.
If a forum member gives an answer you like, give them the Kudos they deserve. If a member gives you the answer to your question, mark the answer as Accepted Solution so others can see the solution to the problem.

I have two iMac 24" how can i run them as one machine

im trying to figure out how to connect my two 24" to opertar as one machine if any one has the answer please help thanks

Are you referring to use the display of one with the other Mac or are you referring to use the hardware of both computers into one?
If you are referring to this first option, you have to use an application like ScreenRecycler, because only 27-inch iMacs and iMacs with Thunderbolt can be used as an external display officially.
If you are referring to my last option, you can't do it

IWeb projects from two computers. How do I combine onto one machine.

Hi,
I have been working on five sites in total. Three of them were satrted on my iMac G5 and recently I have just started two more but on my new MacBookPro.
They are all published, but I now want to combine all of the projects onto my MacBookPro. After some research it seems that iWeb saves one file called Domain in the iWeb folder. I can't have two Domian files in the same folder (one replaces the other)
Question is, how do I combine all of my iWeb projects together into one Domain file?
Any help appreciated.
Keith

I was wondering the same thing, for the same
reason...it sounds as if the separate domain files
must be maintained separately [maybe in separately
named folders in AppSupport/iWeb? and then just
switch between the separate folders to be able to
edit on one machine....but then be careful when you
do an Announce, because it'll only send
http://web.mac.com/nameofuser to the people and it
might open up Site #2 and not the one you sent,
right??
This is the reason there are applications like iWebSites (http://mistergregg.com/cocoadrillosoftware/) that help you to switch in and out different domain files. With multiple sites, you must specify the longer URL in order to get people to the specific site. I don't think the Announce email function is really up to snuff in this regard.
Any easy way to cure this issue of being able to
easily announce Site 2 to some and Site 3 to others?
without visiting sites and sending the LONG link????
that's inelegant.
See my post to you about subdomain forwarding in this thread...
http://discussions.apple.com/thread.jspa?threadID=619363&tstart=0

Can I use aperture library on more than one machine

My situation is thus:
I have a Macbook Pro on which my Aperture Library resides, in wherever Aperture decided to put it when I bought the software.
I now have a iMac, which obviously will be better than the Macbook for photo editing.
But I want to be able to take my Aperture Library with me when I take the Macbook out and about, and if necesary still edit on the Macbook.
Is there any way to share the Aperture Library, so that I can edit on the iMac, but leave the library on the Macbook, and then edit on the Macbook if I wish.
I am the only user, and will only be using Aperture on one machine at any one time.
I have searched archives but not managed to find the answer.

Is it possible to simply share the directory that contains the necessary file(s).
If your Library is in the location that aperture picks by default, then it will be in your "Pictures" folder - look for a file with a name like "Aperture Library. aplibrary".
What you will need to share depends on your import strategy for the master images. If you use managed masters, and all your master images reside inside the Aperture library, then you simply need to make this library file accessible or copy it to an external disk.
If on the other hand your masters are referenced, then I would recommend to consolidate them into the library before you share the library and then share the consolidated library.
If you will share your library over the network or just by moving it to an external device is really up to you, but you might consider the following pros and cons:
- If you want to profit from the faster CPU on your iMac, then you should keep the library on the fastes volume that is available, and a network volume might be much slower than a directly connected volume.
- if the network fails during a critical operation your library might get corrupted, if it resides on a network volume - there have been quite a few problems reported in this forum.
That is why I suggested to use your Macbook as directly mounted external volume, that leaves the library in its place on the Macbook Pro - no need to copy - and you have a very quick and stable connection, but the decision is yours to make. You will have to be comfortable with the workflow you choose.
HTH
Léonie

Cluster on one machine?

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