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General J2EE: Clustering WLS 7

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  1. Clustering WLS 7 (4 messages)

    • Posted by: Mike Dunbar
    • Posted on: August 07 2003 10:29 EDT
    Anyone Know - Is it true that you have to use to cookies to cluster WLS 7? I just joined a team where we can't use cookies, and word has it that we therefore can't cluster our WLS instances for session replication/failover.

    Thanks,
    Mike
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    Threaded Messages (4)

  2. Clustering WLS 7[ Go to top ]

    You can use URL encoding. It's part of the Servlet spec and it's supported by WebLogic (and jRun too AFAIK).

    Peace,

    Cameron Purdy
    Tangosol, Inc.
    Coherence: Easily share live data across a cluster!
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  3. Web Logic Clustering[ Go to top ]

    Based on the specs of your application and needs for affinity you can get by just using session (peer-memory) replication or use F5/Resonate BIG IP to force load balancing. Therefore cookie is not required....

    Omer Qureshi
    PMP, MCSE, CCDA, Security+
    http://www.omerpro.com
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  4. Web Logic Clustering[ Go to top ]

    Based on the specs of your application and needs for affinity you can get by just using session (peer-memory) replication or use F5/Resonate BIG IP to force load balancing. Therefore cookie is not required....

    Omer, the problem is that "just using session" often implies using cookies. The session ID is carried in a cookie by default. The alternative is to use URL encoding, so that the session ID becomes part of the URL.

    BTW, the various load balancers you mentioned also use (among other things) cookies for sticky load balancing.

    Peace,

    Cameron Purdy
    Tangosol, Inc.
    Coherence: Cluster your POJOs!
    Reply to this Reply to original

  5. Web Logic Clustering[ Go to top ]

    Cameron, that is correct the usually session and cookies goes hand in hand. However now with all the advance in IP forwarding and persistency algorithm offered by Hardware and software based load balancer you can get by, just coding web apps that have sessionid and info in the header, or you could always use sticky IP for affinity.

    Cheers,
    Omer Qureshi
    http://omerpro.com
    Reply to this Reply to original