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Building a Stable and Clustered J2EE Environment?

royles asks: "I am working with several J2EE Application Servers and all seems fine until I start to scale and cluster. The goal is to ensure a web and EJB session is maintained across a pool of Application Servers. The level of complexity to achieve this straightforward requirement is proving too much. It quickly becomes evident that vendors claims of 'robust and scalable' go straight out the window in favour of extortionate support and consultant costs when the installation becomes large. Anybody else experienced this type of problem? What are other peoples experienceâ(TM)s in this area? Any recommendations on Application servers that âdo what they say on the tinâ(TM)? Any good online resources for achieving a highly scaled and robust solution?"

2 of 43 comments (clear)

  1. blah by Anonymous Coward · · Score: -1, Offtopic

    this has been posted elsewhere with a much more in-depth article already

  2. I do it wrong by Anonymous Coward · · Score: -1, Offtopic

    CmdrTaco:Your pretty funny
    DirtyKate:I don't remember you.. but thanx
    CmdrTaco:Wanna cyber?
    DirtyKate:OK, but don't tell anybody (wink)
    DirtyKate:Who are you?
    CmdrTaco: I've got blond hair, blue eyes, I work out a lot.
    CmdrTaco:And I have a part time job delivering for Papa John's
    DirtyKate:You sound sexy.. I bet you want me in the back of your car..
    CmdrTaco:Maybe some other time. You should call up Papa John's and make an order
    DirtyKate: Haha! OK
    DirtyKate:Hello! I'd like an extra-EXTRA large pizza just dripping with sauce.
    CmdrTaco:Well, first they would say, "Hello, this is Papa John's, how may I help you", then they tell you the specials, and then you would make your order. So that's an X-Large. What toppings do you want?
    DirtyKate:I want everything, baby!
    CmdrTaco:Is this a delivery?
    DirtyKate:Umm...Yes
    DirtyKate:So you're bringing the pizza to my house now? Cause I'm home alone... and I think I'll take a shower...
    CmdrTaco:Good. It will take about fifteen minutes to cook, and then I'll drive to your house.

    DirtyKate:Jdogg, I'm almost finished with my shower... Hurry up!
    CmdrTaco:You can't hurry good pizza.
    CmdrTaco:I'm on my way now though

    DirtyKate:So you're at my front door now.
    CmdrTaco:How did you know?
    CmdrTaco:I knock but you can't hear me cause you're in the shower. So I let myself in, and walk inside. I put the pizza down on your coffee table.
    CmdrTaco:Are you ready to get nasty, baby? I'm as hot as a pizza oven
    DirtyKate:Oooohh yeah. I step out of the shower and I'm all wet and cold. Warm me up baby
    CmdrTaco:So you're still in the bathroom?
    DirtyKate:Yeah, I'm wrapping a towel around myself.
    CmdrTaco:I can no longer resist the pizza. I open the box and unzip my pants with my other hand. As I penetrate the gooey cheese, I moan in ecstacy. The mushrooms and Italian sausage are rough, but the sauce is deliciously soothing. I blow my load in seconds. As you leave the bathroom, I exit through the front door....
    DirtyKate:wtf?
    DirtyKate:You perverted piece of shiat
    DirtyKate:Fuk