Active and backup weblogic cluster setup

Env: wls10 MP1 running on RHEL 4/5.
I want to setup a scheme where a weblogic application (clients connect thru ejb/t3 interface) is deployed on two independent weblogic clusters.
I want to mark one cluster as active at a time and the backup cluster to take over when the active is down. This fail over need not be automatic (can be manual).
Is setting up a proxy (for the 2 clusters )the right way to approach this ? Clients connect to the proxy address which can then decide which cluster to route to ?
The client could probably use the cluster address as t3://cluster1Addr,cluster2Addr ?
Thanx,

I guess you need hardware loadbalalncer. I doubt you can acheive this federation with weblogic pre-built-in capabilities.

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Oracle offline backup in cluster setup

Dear Experts,
I have installed CRM 2007 on windows and oracle 10g with High availability setup (cluster) and currently in the process of Post-Installation.
As part of post installation, I have to apply support patches. Before that I wanted to take one backup of the system and tried taking the offline backup. My SAP and DB resources are on Node A and before starting the backup I have gone through the "Note 378648 - Offline backup support with Oracle Fail Safe"
and have set the environment varaibles on both Node A and Node B.
Have started the backup from DB13 and initially backup started and DB resource went offline and backup started and files are getting backedup in the path given. But immediately all DB resources came online on Node A and was able to login to SAP. Strange part is even after DB was online backup continued to copy the files in menitoned path and at the end backup completed with errors stating that instance was started during the offline backup and could not start already running instance.
Online backup is working fine. Please suggest how to sort out this issue.
Thanks & Regards,
Sharath

Hi,
The good news is that your cluster works perfectly for fail overs !
The bad news is that, there is something wrong in your configuration because the database was not set offline as a cluster ressource. Do you have a standalone gateway on the Oracle node ?
Regards,
Olivier

WebLogicSession and X-WebLogic-Cluster-Hash cookies

          Hello, apologies up front if this has been posted before, I haven't
          been able to
          find any reference to it yet. First, how do I decode the
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          between the HttpClusterSerlvet and the HTTP client to extract the IPs of the
          primary/backup cluster servers that have replicated my HTTP session?
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          how is the translation done between the WebLogicSession cookie
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          and the X-WebLogic-Cluster-Hash (proxy<->cluster)?
          Thanks in advance for any responses,
          -Steven Vaughan


I'm not exactly sure what you are asking. Are you trying to configure a
          hardware load balancer or something like that in front of the proxy?
          If you take a look at the cookie information (you can do so online by using
          safe cookies at anonymizer.com for example) you will see the IP addresses
          embedded in the cookie data. Do you need to know exactly what the
          information/offsets there are in that data? Could you explain what you are
          trying to accomplish?
          Cameron Purdy
          Tangosol, Inc.
          http://www.tangosol.com
          +1.617.623.5782
          WebLogic Consulting Available
          "Steven Vaughan" <[email protected]> wrote in message
          news:[email protected]..
          >
          > Hello, apologies up front if this has been posted before, I haven't
          > been able to
          > find any reference to it yet. First, how do I decode the
          > WebLogicSession cookie
          > between the HttpClusterSerlvet and the HTTP client to extract the IPs of
          the
          > primary/backup cluster servers that have replicated my HTTP session?
          > Second,
          > how is the translation done between the WebLogicSession cookie
          > (proxy<->client)
          > and the X-WebLogic-Cluster-Hash (proxy<->cluster)?
          >
          > Thanks in advance for any responses,
          > -Steven Vaughan
          >

Weblogic cluster setup

How can I setup two machines in cluster?
What all I need to setup and whats the procedure.

http://e-docs.bea.com/wls/docs70/pdf/cluster.pdf
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How to Uninstall SQL instance on active-passive SQL server , which failed during Cluster Setup (Error-Failed at Validate Active Directory Configuration)

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Asandeen

Hello,
Please refer to the following link about remove a node of SQL Server Failover Cluster Instance:
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Fanny Liu
Fanny Liu
TechNet Community Support

Libproxy sp12 behind a firewaill fails to connect to weblogic cluster

Two WLS 5.1 SP11 clustering, iPlanet4.1 w/wlproxy plugin, Solaris Box. There is a firewall in between the iPlanet WebServer and the weblogic cluster. The NSAPI proxy plugin ( libproxy.so )connects successfully to one of the weblogic cluster for the first time using the NAT IPs of the cluster m/c maintained in the obj.conf. The Response contains the actual IP of the weblogic cluster m/c which gets updated in the proxy and uses that to connect to the cluster and firewall blocks that as it is not the NAT IP. But this works fine in libproxy of weblogic 6.1 unfortunately this has a problem when the data that gets passed is more than 1000 chars.

shouldn't the connect string look like jdbc:oracle:thin:@MyIP:1521:MySID ?

Weblogic cluster for 24x7 environment and a front OHS server

Hi experts,
We are going to set up a reliable J2EE application server environment by using clustering webgoic servers on TWO nodes, and a front OHS https server in DMZ for load balancing.
I am new to weblogic cluster and load balance by OHS. I have visited this forum for Fusion MiddleWare clustering etc. Can some experts share some light on this?
Will our deployment architecture be able to handle the J2EE applications failover? In other word, we can restart one of Weblogic Managed Servers when a new release of J2EE codes are re-deployed without impacting business end users’s usage?
Problems we want to solve:
1. All J2EE applications are available for 24x7 even when new J2EE codes are released and deployed on weblogic Managed Servers ANY TIME, side-by-side deployment and restart a managed server if we need to clean the HTTP cache.
2. The J2EE applications should be accessed by external and internal users with a Single Access Point, like
https://apps.company1.com/j2ee1
https://apps.company2.com/j2ee1
https://apps.company1.com/j2ee2
https://apps.company2.com/j2ee2
All J2EE applications (j2ee1, j2ee2, j2ee3 etc) should be deployed on both of weblogic Servers in a cluster, and pointing to a SAME backend database.
Can some experts share with us the best practices on components and configurations? Thanks.

Seems your architecture is like Browser => OHS ( DMZ ) => Weblogic => DB OR Browser => HLB( like bigip ) => OHS ( DMZ ) => Weblogic => DB
Cluster is the solution for load balancing however if you are using OHS for redirection to weblogic then OHS does the load balancing in round robin way. using cluster in this way has a benefit of in case of any one of your managed server is down the OHS will divert connection request to any one of the active managed server ( you have to turn on dynamic list on at OHS ).
http://weblogicserveradministration.blogspot.com/2010/10/load-balancing-in-weblogic-server.html
Failover is something different, if in case any of the any managed server goes down then your user you get the application session from another server but new one, means the the tasks not saved by the users on earlier session will lost. for that yo need to use cluster and then need to enable the session replication. another best option is you can use the coherence web if you are using latest versions of weblogic supporting coherence web. with that you not need to worry on user sessions and you can start any of the managed server anytime without worrying about the user sessions.
http://weblogicserveradministration.blogspot.com/2010/10/manage-http-session-states-session.html
http://weblogicserveradministration.blogspot.com/2011/05/oracle-coherence-37-coherenceweb.html
http://weblogicserveradministration.blogspot.com/2010/11/clustering-part-i.html
another way is, you can use side by side deployment feature in case you don't want shutdown your application completely, with this, old connections and new requests will goes to old application and once new application activated all new requests will come to new application and once all requests on old application will complete that application will retire automatically.
Regards
Mukesh Negi
http://weblogicserveradministration.blogspot.com

How to setup weblogic cluster in 6.1 SP4

          Hi All,
          I have a Licensed weblogic in my solaris servers. I need to test weblogic clustering
          . How can i simulate weblogic clustering is there is any easy steps to do that
          and what should i do in order to make my EJB`s cluster aware. And some ppl say
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Hi
I have same problem at beforetime.
You can do follow:
Step 1:
copy rt.jar form JDK 1.2.1\jre\lib\jar
to J2EE1.2.1\lib\system\
Step 2:
Set J2ee_classpath = c:\j2ee1.2.1\lib\system\rt.jar
Step 3:
Restart computer and J2ee
You can try it
Help can help you
David

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Okay, our cluster setup in NetWare (yes, still NetWare cluster) with Groupwise 7.0.3 we have unique TCP ports for the client/server (like 1677-something). Even though each clustered node has a unique IP and is running in protected memory.
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kjhurni wrote:
> Okay, our cluster setup in NetWare (yes, still NetWare cluster) with
> Groupwise 7.0.3 we have unique TCP ports for the client/server (like
> 1677-something). Even though each clustered node has a unique IP and is
> running in protected memory.
>
> That being said:
>
> We'd like to enable SOAP for use with BES and GWArchive.
>
> The issue/question:
>
> Do either of these figure out the SOAP port for each PO? Or must the
> SOAP port be the same among all the PO's for BES to work properly?
>
> If the SOAP port must be the same (I'm not the BES admin, so I don't
> know if the setup lets you specify just one port or if you can defined
> them per PO), can you run multiple POA on the same physical host (keep
> in mind, this is clustered with protected memory) and use the same TCP
> port # for SOAP?
>
>
I haven't used BES, but in general there's no auto-discover method for
SOAP ports, so yes they'd probably have to be the same port.

How to Takes Active directory backup and Restore in different Hardware

Hi
how to takes Active directory backup and Restore in different Hardware in Windows server 2003 R2 standard Edition.

You can give a look to that: https://support.microsoft.com/kb/249694/?wa=wsignin1.0
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
My Website Link
My Linkedin Profile
My MVP Profile

Weblogic cluster and routers

Is it possible to setup a WLS cluster having two WLS boxes seperated by
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          - Bhupi


Yes. you have to set you weblogic.cluster.multicastTTL greater than 1 in
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          However, it is not a good practice to set your cluster across LAN.
          Cheers - Wei
          Bhupinder Dhillon <[email protected]> wrote in message
          news:8h909a$kt4$[email protected]..
          > Is it possible to setup a WLS cluster having two WLS boxes seperated by
          > switches/routers ?
          >
          > - Bhupi
          >
          >
          >
          >
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Trevnew wrote:
when looked in preferences the old location was still there, eventually changed in preferences
Trev,
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you may have done something wrong initially (during re-locating your library to the NAS) because the exclamation marks usually appear when media files were moved using the finder and iTunes lost track of their location.
you might be able to use this script:
iTunes Track CPR v1.3
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Session lost problem in Weblogic cluster and Iplanet proxy

          We have an environment like this
          Iplanet 4.1--> Two Weblogic servers.(WLS 6.1 sp1)
          The Weblogic servers are not really clusterd, but we are using the Weblogic Cluster
          attribute in the obj.conf to configure the proxy (The Weblogic servers are really
          independant servers with the same application deployed).
          This is working fine in our development environment. No problem with session and
          load balancing. Although this architecture is not documented in Weblogic docs,
          I have seen several references to this type of architecture in the web and it
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          Now we are into our pre-production environment. The same archictecture exists.
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          Hi
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          proxy
          Regards
          Anup
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          >Anup,
          >
          >Is there a reason you are not clustering the WLS instances? Remove the
          >firewall in your
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          >
          >Anup wrote:
          >
          >> Hi Mike
          >> 1. As per the documentation WebLogic Server is set up to handle session
          >tracking
          >> by default. So we are not doing anything special. Since the application
          >works
          >> fine with one Weblogic and multiple clients connecting to it through
          >Iplanet ,
          >> I think there is no problem with Session tracking as such.
          >>
          >> 2.We are using the default cookie name for session (JSESSIONID). So
          >we haven't
          >> done anything extra in the proxy set up or weblogic.xml
          >>
          >> 3. I have watched the cookie that comes on the browser
          >> PAACk3iviDm4ZuMPIbB9TpTTw9slk40IEC02MKjpu14EZ9ayzqaP!-1196227542!gmbpds054!7015!7016.
          >>
          >> gmbpds054 is the DNS name of one of the weblogic servers. So that is
          >also fine.
          >>
          >> What else could be the problem.
          >> Regards
          >> Anup
          >>
          >> "Mike Reiche" <[email protected]> wrote:
          >> >
          >> >If you have session tracking turned on in weblogic, creating a session
          >> >will write
          >> >a cookie back to the browser. iPlanet does sticky load balancing
          >based
          >> >on the
          >> >IP address in this cookie. So -
          >> >
          >> >1) do you have session tracking turned on?
          >> >
          >> >2) is the cookie getting written to your browser?
          >> >
          >> >3) are iPlanet and WebLogic using the same cookie? (same name)
          >> >
          >> >Mike
          >> >
          >> >"Anup Maliyackel" <[email protected]> wrote:
          >> >>
          >> >>We have an environment like this
          >> >>
          >> >>Iplanet 4.1--> Two Weblogic servers.(WLS 6.1 sp1)
          >> >>
          >> >>The Weblogic servers are not really clusterd, but we are using the
          >Weblogic
          >> >>Cluster
          >> >>attribute in the obj.conf to configure the proxy (The Weblogic servers
          >> >>are really
          >> >>independant servers with the same application deployed).
          >> >>
          >> >>This is working fine in our development environment. No problem with
          >> >>session and
          >> >>load balancing. Although this architecture is not documented in Weblogic
          >> >>docs,
          >> >>I have seen several references to this type of architecture in the
          >web
          >> >>and it
          >> >>seems to be working.
          >> >>
          >> >>Now we are into our pre-production environment. The same archictecture
          >> >>exists.
          >> >>Only the following differences
          >> >>1. Both the weblogic servers run on multihomed machines. We have
          >bound
          >> >>the Weblogic
          >> >>servers to specific IP addresses using the Listen address option.
          >> >>
          >> >>2. The same IP addresses are there in the proxy plug-in conf file.
          >> >>
          >> >>3. There is a firewall between the Iplanet and Weblogic.
          >> >>
          >> >>Now if only one weblogic is running, the application works fine.
          >The
          >> >>moment we
          >> >>turn the other weblogic on, the application starts misbehaving. The
          >> >session
          >> >>seems
          >> >>to get lost and proxy forwards requests randomly.
          >> >>
          >> >>What could be the reason?
          >> >>
          >> >>Regards
          >> >>Anup
          >> >
          >

When validating, activating my photoshop 13 i get the message internet not active, checked internet is ok, country and time is correct setup

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Hello,
I want to configure a Bea Weblogic 8.1 Cluster including an itanium and a i686
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I have sucessfully configured a weblogic cluter with 2 Sun servers.
Now I want to use for my weblogic cluster an itanium server together with an Intel
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Hello,
I want to configure a Bea Weblogic 8.1 Cluster including an itanium and a i686
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