alteon passive cookie inspection - Weblogic

This is a discussion on alteon passive cookie inspection - Weblogic ; I've got a weblogic cluster (8.1 SP3) set up and an Alteon load balancing t= he connections on the front end. I followed nortel's weblogic doc to use pa= ssive cookie persistence to maintain sessions to the same weblogic server ...

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alteon passive cookie inspection

  1. Default alteon passive cookie inspection

    I've got a weblogic cluster (8.1 SP3) set up and an Alteon load balancing t=
    he connections on the front end. I followed nortel's weblogic doc to use pa=
    ssive cookie persistence to maintain sessions to the same weblogic server t=
    hat set the original JSESSIONID cookie, however it does not appear to be wo=
    rking. I am wondering if anyone else has tried the passive cookie inspectio=
    n feature of the Alteon 2424 or equivalent with the weblogic cookie and how=
    you fared. The nortel doc is a bit out of date and I am hoping that it's a=
    simple misconfiguration.

  2. Default Re: alteon passive cookie inspection

    We're experiencing similar problems with Alteon and WebLogic. Did you ever=
    resolve this issue?

  3. Default Re: alteon passive cookie inspection

    I am not sure if your problem has been fixed or not but I successfully conf=
    igured load balancing with a Alteon 2424 using cookie insertion/passive coo=
    kie inspection. I am running weblogic server 8.1 SP4 and I have got 4 manag=
    ed servers in my cluster.

    Message was edited by:=20
    jackey.lau@vodafone.com

  4. Default Re: alteon passive cookie inspection

    Have anyone tried to load balance their web servers and application servers=
    using the same physical hardware load balancer (Alteon 2424)?=20

    Note: I can provide more detail information or configuration setting if any=
    one thinks they know how this can be achieved.

    ### My Web Tier ###
    I am currently using cookie insertion (with the default AlteonP cookie) to =
    load balance the web tier which consisted of three physical web servers and=
    they are all running iPlanet. Proxy plug-ins is configured to point to a v=
    irtual ip which consisted of four real application servers. See below

    ### My App Tier ###
    The application tier consisted of four physical application servers and the=
    y are all running weblogic 8.1 SP4. I am currently using passive cookie ins=
    pection to load balance this layer.

    ### Problem that I am facing ###
    Request to the web tier (via the web vip) is load balancing correctly.
    Request directly to the app tier (via the app vip) is load balancing correc=
    tly.
    Request to the app tier (via the web vip) is "not" load balancing properly.=
    For example, the load balancer is not inserting the AlteonP cookie all the=
    time and it is only routing requests to one app server.

    ### What I think the problem might be ###
    The reason why all requests are going to only one app server could have som=
    ething to do with the connection pool between the proxy plug-ins and the ap=
    plication servers. For example HTTP 1.0 vs HTTP 1.1 requests.

    I currently have no idea why the AlteonP cookie is not been inserted all th=
    e times.

    It will be interesting to know how others weblogic guru configure load bala=
    ncing for their web/application tier using Alteon load balancer.

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