WebSphere Application Server & Liberty

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  • 1.  Adding existing jvm to a cluster

    Posted Wed May 24, 2023 11:03 AM

    Can you add an existing jvm to a cluster? If so, how?



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    Francisco Castelo
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  • 2.  RE: Adding existing jvm to a cluster

    Posted Thu May 25, 2023 01:53 AM

    I assume this is about tWAS.  If this is a new cluster tWAS allows you to select a member.  However, once the cluster is created you cannot add another existing server to the cluster.



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    Brian S Paskin
    Sr. Technology Engineer
    IBM Cloud Engineering
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    Original Message


  • 3.  RE: Adding existing jvm to a cluster

    IBM Champion
    Posted Fri May 26, 2023 07:59 AM

    As Brain mentioned before you can not add an existing server to an existing cluster (why would you want to do that?) However if you create a new cluster you can add an existing server as a cluster member.

    If you have an existing cluster and need an additional cluster member you can just add one on the node where you'd like to have the JVM (=Application Server) running and Dmgr will make sure it gets all the applications etc. Just need to adjust the server settings like JVM Arguments, Log settings. etc.

    Hope that helps, Hermann



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    Hermann Huebler
    2innovate IT Consulting GmbH
    Vienna
    Austria

    #IBMChampion
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    Original Message


  • 4.  RE: Adding existing jvm to a cluster

    Posted Fri May 26, 2023 08:03 AM

    Thank you. idk why the customer asked me that question. I'd have to look into it further.



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    Francisco Castelo
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    Original Message