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Multiple WAS Server

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  • Multiple WAS Server

    Hi everyone I am curious to know if this is possible.

    I have 2 WAN connections at my location can I install WAS on 2 different machines and have them both work off of the same data folder?

    This way I would have 2 different ways to access my webpage if one of my services or servers were down.

    I would obviously have to have 2 Different WAS licences and have to bridge connections to my data server.

    Thanks

    Chad
    Chad Brown

  • #2
    Re: Multiple WAS Server

    I think this is a great question and will be very interested in an answer as well.

    Gary
    Gary S. Traub, Ph.D.

    Comment


    • #3
      Re: Multiple WAS Server

      I have something simialr working with two instances and licenses on the same server.

      You should be able to map the web root to a shared drive somewhere, and ensure the data folders are defined to use the same shared data folders (although this should be safer with SQL instead of DBF files, there may be some data file access problems and file lock issues?).

      The only thing you may have to be careful with is session IDs, which are unique per server instance so there might be clashes as a result.

      Comment


      • #4
        Re: Multiple WAS Server

        We should also prod Alpha as this would be a good thing to add to the App Server directly. It should have the ability to load balance, use multiple servers, etc.
        Steve Wood
        Join the ALPHA DEVELOPERS NETWORK
        There is no Cloud. It's just someone else's computer.
        Web - Mobile - Hosting - Products - Frameworks - Developer Resources
        AlphaToGo | IADN (100% Alpha Anywhere Websites)

        Comment


        • #5
          Re: Multiple WAS Server

          I thought they were developing something like this anyway (this was mentioned around the time v9 was released) but perhaps they are saving it for v10 now?

          Comment


          • #6
            Re: Multiple WAS Server

            My memory is a bit foggy, but I once saw a proposal for an Alpha "cluster controller" where one copy of Alpha controls a cluster of servers which could be set for fail over.

            It wasn't a product, just a proposal. In that case, however, it did not provide for multiple copies of Alpha that could interact and take over for each other if one instance failed. I haven't heard of Alpha having or working on such a product.

            Pat
            Pat Bremkamp
            MindKicks Consulting

            Comment


            • #7
              Re: Multiple WAS Server

              Interesting discussion. Yup, at some point we'll need to deal with clustering servers.
              Frank R

              Comment


              • #8
                Re: Multiple WAS Server

                I've lost interest in following up on this. I used to be in communication with them on this "cluster server", but have not heard anything about it for a year.
                Steve Wood
                Join the ALPHA DEVELOPERS NETWORK
                There is no Cloud. It's just someone else's computer.
                Web - Mobile - Hosting - Products - Frameworks - Developer Resources
                AlphaToGo | IADN (100% Alpha Anywhere Websites)

                Comment


                • #9
                  Re: Multiple WAS Server

                  Originally posted by Steve Wood View Post
                  I've lost interest in following up on this. I used to be in communication with them on this "cluster server", but have not heard anything about it for a year.
                  Same here although I suspect some of the improvements in the WAS mentioned in the most recent Email Newsletter (does anyone have the online link for this?) may have done away with the need for part of this anyway.

                  Plus I must say I had noticed some .dll files with the word "apache" in them in the Beta builds... hmm...

                  Comment


                  • #10
                    Re: Multiple WAS Server

                    Thanks, to all that have viewed and given input on this thread.
                    I think that a multiple server is essential to the growth of Alpha's WAS.
                    I will be testing this in the future and will post any of my results for all to see.
                    I will be running sql for data and probably two different machines with WAS on them.
                    Chad Brown

                    Comment


                    • #11
                      Re: Multiple WAS Server

                      Chad,
                      What you suggest in your initial Post,
                      I have 2 WAN connections at my location can I install WAS on 2 different machines and have them both work off of the same data folder?
                      This way I would have 2 different ways to access my webpage if one of my services or servers were down.
                      I would obviously have to have 2 Different WAS licences and have to bridge connections to my data server.
                      I'm sure must be possible, with some tinkering. What I believe would make this slightly easier is TWO separate static IP addresses [but not essential]
                      The "cluster controller" issue is slightly different and for a different purpose.

                      Comment

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