Clustering in glassfish

Hi
We use JSF -EJB frame work with toplink essentials as the persistance provider , As our application became highly transactional we moved to clustered setup of glassfish . Now we getting issues because of stale data ( the data updated on one instance of glassfish is not getting reflected on the other instances ) ,
1) Do we need to have a cache synchronizing across the instances, if so what will be the best option to acheive this .
2) We are using stateless session beans , so can the ejb beans be clustered, how to do this ?
Thanks in advance

Where is the (stale) data kept? Is it inside a Stateless Session bean? In GlassFish, Stateless session beans are NOT replicated, since (by definition) they are stateless.
Also, can you post the domain.xml?

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    GlassFish v2 UR1 is a world-class, production-ready, Java EE 5-compliant, open-source application server. It provides enterprise features such as clustering, a centralized management console for administration, Web Services Interoperability Technologies (WSIT), NetBeans IDE integration, native service-oriented architecture (SOA) support through Java Business Integration (JBI), and load balancing to support highly scalable, volume enterprise deployments for SOA and Web 2.0 applications.
    Try GlassFish for a chance to win an iPhone. This sweepstakes ends on March 23, 2008. Submit your entry today.
    See http://java.sun.com/javaee/community/campaigns/iphone-012008/welcome.jsp for details.
    Paul Sterk
    GlassFish Community Manager

    Yes, the solution accelerators work with ES2.
    Can you please let us know what problem did you encounter while installing the SA?
    Thanks

  • Glassfish vs weblogic

    hello everybody,
    i dont know if similar posts were posted before.. if so, i am sorry for your time. as a minor research project, i was assigned to search weblogic and glassfish and compare them according to the parameters such as prices, required minimum hardware configuration, maximum load and etc.
    is there anyone who can help me with this? maybe there is a specific site indicating these above mentioned parameters?
    another thing that i wonder is, since glassfish is free (i mean os) and weblogic is expensive (heard that it is $10.000 for each computer but not sure about that), why someone should choose wl over gf?
    i mean is there a really performace difference between these two that someone agrees to pay 10 times more? is the quality 10 times worse in gf?
    i have been searching for a comparison (in terms of price, performance and load capacity) of these two app-servers; however, i couldnt find nothing but the obsolete posts.
    if anyone can help me, it would be a great help to me.. thanks to all again,
    - ismet

    >
    can i ask you 2 more questions..Sure, my pleasure.
    considering the price, performance and maximum load parameters, what is the threshold for you to select GF over WL?
    price always matters but then we have also to see the scalability and robustness of the product and its future. I have found the performance of WLS slightly better than GF, and same goes for the concurrent users. I have used both with more than 500-800 concurrent users and WLS performed slightly better and it was easier to manage, and load balancing just rocks.
    do you also know the maximum loads of the servers (i mean, how many total user can connect to each server at the same time?)
    There is no single limit when you implement load balancing and clustering. The more power and scalability you get, when you add more nodes.
    regards
    >
    thanks again for your time,
    BR,
    - ismet

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