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Successful 6 Instances of WAS

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    Successful 6 Instances of WAS

    Hi everyone I just wanted you all to know that I have a server which is currently running 6 seperate instances of WAS and seems to be running very smoothly. The Application currently has over 75 concurrent users spread accross the 6 Instances of WAS. All of them are pointing to the same webroot and data which is on MYSQL. The machine is being hosted by Clive at Zebra Host and I can tell you that the speed is fantastic. My entire site is based off of one tabbed UI which contains over 40 Grids and many a5w pages that run inside of the tabbed UI. Also we are running multiple reports at the same time and have no issues so far.

    Congrats to Alpha and Zebra Host.
    Chad Brown

    #2
    Re: Successful 6 Instances of WAS

    Chad,

    Why do you need 6 rather than one?
    Peter
    AlphaBase Solutions, LLC

    [email protected]
    https://www.alphabasesolutions.com


    Comment


      #3
      Re: Successful 6 Instances of WAS

      I wanted to do a load balance bettween 6 different websites that all point to the one set of data. I have 14 locations that I split up equally bettween the different sites. I also figured that it would help in reliablity and speed and it seems to. If I have a problem with an instance the store can simply goto one of the other sites and keep working until I can restart or trouble shoot the instance. For me the only difference price wise is the registering of the sites which is $15/yr for each site. This way I can do my own load balancing without paying for a load balancer which is $75/mth.
      Chad Brown

      Comment


        #4
        Re: Successful 6 Instances of WAS

        I would guess that the optimal number of WASes will be determined by the maximum number of processors you have(or cores) since each instance will run on a separate processor but if you exceed the processor count you would be running more than 1 WAS on a single processor.
        Although you could stop each WAS individually as you stated, having more than 1 WAS on a single processor does not seems as an optimal setup to me (you would be using the same resources anyways).
        Cheers
        Mauricio

        Comment


          #5
          Re: Successful 6 Instances of WAS

          I'm running multiple instances as well on one VPS, though none of the sites are very busy. It's a nice way to implement some seldom-used stuff or charity sites without having to set up yet another server (VPS or not) and buy another A5 server license. If/when any one of the sites begins to make this setup untenable, I will set it up separately.
          -Steve
          sigpic

          Comment


            #6
            Re: Successful 6 Instances of WAS

            Good to hear. I am about to configure what looks like the same - 12 A5WAS instances over a dual six core server plus the load balancer. The objective is to handle 500 connections. This is for a restaurant application that expects heavy lunch time orders.
            Steve Wood
            See my profile on IADN

            Comment


              #7
              Re: Successful 6 Instances of WAS

              The server I am using is a dual quad core so i am using 6 of the 8 cores for the instances.
              Chad Brown

              Comment


                #8
                Re: Successful 6 Instances of WAS

                I am currently running this server on 4gb of ram which runs a little to close to max for comfort so I will be getting clive to bump me up to 6gb ram.
                Chad Brown

                Comment


                  #9
                  Re: Successful 6 Instances of WAS

                  You guys are encouraging me with those numbers.
                  Now we're talking.
                  Frank R

                  Comment


                    #10
                    Re: Successful 6 Instances of WAS

                    A little more interesting info from talking with Chad..

                    In the old (V8, V9) days, if the WAS grew to 125 meg or more, it had a tendency to "lock up". Now, Chad runs routinely at 250 to 300 meg for each WAS instance with no problem. Also, his MySQL( 64 bit) runs about 900 meg, so you can see why he opted for a bit more memory.

                    With a single instance, he was finding the WAS would lock up for about 3 minutes several times a day, and he was frequently rebooting the server to get it responding quickly again. Never figured out why, but the multiple instances has completely eliminated that.

                    All the above without any toying with thread counts yet.

                    I'm trying to arrange for Chad to demo his application over on IADN. Anyone worried about responsiveness with lots of users should take a look.

                    Pat
                    Pat Bremkamp
                    MindKicks Consulting

                    Comment


                      #11
                      Re: Successful 6 Instances of WAS

                      Originally posted by Pat Bremkamp View Post
                      With a single instance, he was finding the WAS would lock up for about 3 minutes several times a day, and he was frequently rebooting the server to get it responding quickly again. Never figured out why, but the multiple instances has completely eliminated that.
                      Hopefully, that was a statement about pre-V10, too. That's just not close to acceptable. That would be a deal breaker if I observed that with V10. Someone encourage me.
                      Frank R

                      Comment


                        #12
                        Re: Successful 6 Instances of WAS

                        Yes the statement was about ver 8 and 9 however I did have some situations with v10 in earlier releases that seem to have a problem if someone was a fast fingers with the mouse and exiting or re-clicking items while sql was producing the results. It did seem to make the WAS and SQL go into a drowsy state for a couple of minutes then it would return to normal.
                        Chad Brown

                        Comment


                          #13
                          Re: Successful 6 Instances of WAS

                          Could someone point me (a complete rookie at this stuff) to some guidance on how to set these multiple instances up on assigned cores with different site names but the same data and application?

                          We've got a single instance running quite smoothly but will be adding some users and functionality soon and it would definitely help to proactively address load and speed issues.

                          Comment


                            #14
                            Re: Successful 6 Instances of WAS

                            1 you need a machine that can handle multiple ip address's
                            2 bind your was to a specific ip address
                            3 get Always up and get one instance running as a service.

                            Let me know when you have all of that working and by then I will have more for you.
                            Chad Brown

                            Comment


                              #15
                              Re: Successful 6 Instances of WAS

                              Originally posted by chadbrown View Post
                              1 you need a machine that can handle multiple ip address's
                              2 bind your was to a specific ip address
                              3 get Always up and get one instance running as a service.

                              Let me know when you have all of that working and by then I will have more for you.
                              Although this is a possible (and good) solution, none of the above are required since you can run multiple WASeses :o on a single IP but with different ports and always up is certainly not required either although is a very helpful piece of software
                              Cheers
                              Mauricio

                              Comment

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