4 Replies Latest reply on Dec 7, 2011 5:52 AM by sia

    Persistent data storage

      Hi.

       

      Some one know, what is "Persistent data storage" optión in MWG 7 configuration menu?

       

      Tk a lot.

        • 1. Re: Persistent data storage
          asabban

          Hello,

           

          PDStorage can be used to "remember" values across transaction. If you write a value to PDStorage, it basically gets written into a database, which survives across transactions and even process restarts. A good example is maybe a "Welcome Page". If a user accesses the Internet the first time, you show him a "Welcome to the Internet" website, and write a value to PDStorage that this user has seen the site.

           

          The next time a user accesses the Internet, you can check if there is an entry in PDStorage, and based on the result check if you want to display the Welcome Page again or not. Almost any kind of information can be "remembered" this way.

           

          Best,

          Andre

          • 2. Re: Persistent data storage

            Ok asabban.

             

            The configurations under "Persistent data storage", refer to this data sincronization between the cluster nodes?

            • 3. Re: Persistent data storage
              asabban

              Hi Pablo,

               

              sorry I think I misunderstood the first question. You are right. The PDStorage "database" is kept in memory, to read/write data. Data kept in memory will go on a process restart or crash, so the settings define how often the database is stored to the disk. The second setting defines how often the database will be synched in a cluster (central management). Changes are not synchronized in real time, but following the interval configured here.

               

              Best,

              Andre

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              • 4. Re: Persistent data storage

                Thanks for the info.