WebSphere Application Server & Liberty

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  • 1.  Adding a New Node to IBM WebSphere Application Server ND 8.5.5 Cluster

    Posted Tue November 11, 2025 07:14 AM
    Edited by Muhammad Faisal Syed Tue November 11, 2025 07:16 AM

    Hi,
    I am trying to add a new node with a WebSphere profile to an existing cluster on IBM WebSphere Application Server Network Deployment (ND) 8.5.5. The cluster currently consists of 6 other nodes, each with an associated IHS instance.
    I need guidance on how to properly add this new node to the cluster. I have already installed the application server and IHS on the new node and placed them in the same location as on the other nodes.
    I'm especially unsure about updating the deployment manager profile and syncing the changes to the new node, generating and propagating plug-ins. Could anyone please provide detailed steps or suggestions on how to achieve this, based on their experience?



  • 2.  RE: Adding a New Node to IBM WebSphere Application Server ND 8.5.5 Cluster

    Posted Wed November 12, 2025 01:14 AM
    Edited by Lars Besselmann Wed November 12, 2025 02:51 AM
    To add a new node to the existing WAS ND cell, the first step is to install WAS ND 8.5.5 to the new system.
    Please make sure that the Deployment manager is at the same fixpack level or higher than the new node.

    The next step is then to create on the new node a custom profile. This can be done via UI or script.
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=interface-creating-custom-profiles
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=systems-manageprofiles-command
    I would recommend that you create the profile with the option federateLater as this makes sure that the profile is fully created even if the Deployment Manager cannot be reached.

    After the profile has been created, you then use the addNode command to federate the new node into the cell.
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=tools-addnode-command
     
    Once your node has been federated into the cell, you can expand the cluster by adding new cluster members onto the new node.
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=workloads-adding-members-cluster
    Depending on the ports that will be assigned to the new  cluster member, you might have to add the new port to the virtual host.
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=hosts-virtual-host-collection
    If you want to add another web server to your WAS ND cell, you can use the Administration Console.
    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=in-setting-up-local-web-server

    Existing applications can be mapped to the new web server via mapping.

    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=files-mapping-modules-servers

    ------------------------------
    Lars Besselmann
    Application Modernization Specialist, IBM Technology Sales, EMEA
    IBM
    Düsseldorf
    Lars.Besselmann@de.ibm.com
    ------------------------------



  • 3.  RE: Adding a New Node to IBM WebSphere Application Server ND 8.5.5 Cluster

    Posted Wed November 12, 2025 06:10 AM

    Once you have WebSphere and IHS set up on your new server, just connect the node to your deployment manager using the `addNode` command, then pop into the admin console to add it as a new cluster member. Make sure the configuration and JVM settings line up with your other nodes, sync everything in the admin console, and regenerate the web server plug-in so IHS knows about the new member. After restarting IHS, you should be good to go-all traffic gets balanced across your updated cluster, just like the original setup.



    ------------------------------
    Nike Noor
    Nike Noor LLC
    1-720-766-9794
    Golden, Colorado
    United States
    ------------------------------



  • 4.  RE: Adding a New Node to IBM WebSphere Application Server ND 8.5.5 Cluster

    Posted Thu November 13, 2025 04:19 PM

    Hi Muhammad,

      In addition to Lars and Nike recomendations take a look to next redbooks
      
      IBM WebSphere Application Server V8.5 Concepts, Planning, and Design Guide (sg248022) - https://www.redbooks.ibm.com/redbooks/pdfs/sg248022.pdf
        Appendix A. Sample topology walkthrough
      
      WebSphere Application Server V8.5 Administration and Configuration Guide for the Full Profile (sg248056) - https://www.redbooks.ibm.com/redbooks/pdfs/sg248056.pdf
      
      Hope this helps. Tell us if you need more support
      
    regards



    ------------------------------
    Gabriel Aberasturi
    Middleware Architect
    Versia Sistemas TI
    ------------------------------



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