Identity Map in PoEAA problem

From: Harry Chou (yuheng98_at_yahoo.com)
Date: 10/28/03

  • Next message: Otis Bricker: "Re: OO's best feature survey results" 
    Date: 28 Oct 2003 11:48:34 -0800

    I have an urgent question.

    In the recent project (ASP.NET), I used IdentityMap to load objects
    from
    relational database (SQL Server) as described in Martin Fowler's
    PoEAA.

    However, just one day before deployment, the client told me that they
    are going to use load-balanced web farm with two IIS servers. I know
    this is not going to work because I cannot make sure objects in the
    memory are always synchronized with the data in database.

    I have been thinking about taking out the IdentityMap (load objects
    from
    database for each request), but that might cause performance problem,
    and duplicate objects memory.

    Do anyone have any idea what should I do? Using load-balanced servers
    is a
    management decision, and is not negotiatable.

    Harry Chou
    10/28/2003

  • Next message: Otis Bricker: "Re: OO's best feature survey results"

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