Hi Chris, Thanks for your comments! Right now my thought was the 4 sim islands. We were going to use a windows server to run these. Would that be an issue?
I am thinking that your solution is probably best. Does anyone know any cost effective server hosting companies? My thought exactly about balancing the users to only have access to a certain island (or conduct classes that way so that we can balance the load during classes). I just want to make sure we can expand as the program grows for the school. I hate to provide them with this solution and find out we cannot scale up to their needs in the future. Does anyone know how I can contact McCortez? Sadly, I just was running a LAN version in a classroom with 20 kids... It crashed over and over (0.6.5) and was so slow we could not even get the kids in. This was a test to see what we could handle in the school with one server. It scares me to see this situation, and hopefully by getting this advice I can help these school have this as a distance learning service within this VW. My guess is to run a grid. It's easy to make the regions, but again that is still using 1 server and seems to not like to play nice with me right now. lol On Mon, Jun 22, 2009 at 1:23 PM, Charles Krinke <c...@pacbell.net> wrote: > Well, let me jump in here a little bit. > > If I were going to set this up, I would start with four OpenSim regions, > each running on a different Linux server. > > I would put them in a square and make the landing point at the four-corner > junction. > > I would then make each of the four regions a seperate classroom and plan on > reliably handling 20-30 simultaneous in each of the four regions. > > When I had sufficient experience, i.e. one quarter (or semester), then I > would consider expanding (or coalescing two regions into one server) based > on the quarter's (or semester's) reliability or stability. > > I think MCortez said something very similar to this a few posts ago and he > would tend to know also. > > Charles > > p.s. At this point, one can expect to handle 20 avatars simultaneously in > one region comfortably. > > p.p.s 40 Avatars simultaneous in one region is 'iffy'. > > p.p.p.s One can have as many regions as one has servers to serve them from. > > p.p.p.p.s I would probably run a grid and allow this grid to connect > regions rather then running a number of standalones. > > ------------------------------ > *From:* Andrew Hughes <hug...@designingdigitally.com> > *To:* opensim-dev@lists.berlios.de > *Sent:* Monday, June 22, 2009 9:49:26 AM > *Subject:* Re: [Opensim-dev] Help needed for stand alone grid for 800 > users... HELP! > > Guys, > Thanks for all your help on this! I wanted to provide you with the > information regarding what we are aiming to achieve with the school. I hope > the info below sheds light on what you guys think would be the best solution > to my challenge. Let me know what you guys think! > > > > > *1. How many users at one time will be logged in at the same time* > > For the fall semester, we may have up to 3 simultaneous classes of 20 > students, plus teachers and observers, so perhaps up to 70 users. A few > additional students not attending a class session may also be logging in at > the same time to work on assignments etc. We will try to stagger the class > schedules to reduce the number of users on the server at any one given time, > but the 3 class scenario is may happen on occasion. > > *2. How much material / baggage will each avatar have (10 outfits, 100 > outfits, etc.)* > > This will increase over time as we fill out the sim. Initially I think > each avatar's inventory will be pretty limited. Students will need enough > variety to allow 20 individuals to mix and match outfits pieces to look > unique (or at least distinguishable ). Over time we would like to develop > additional items and outfits that students can earn for completing > assignments, good grades, etc. > > In addition to outfits, students will probably accumulate a certain number > of items as they complete class activities. For example, if the class > activity is to go to the market and collect items on a shopping list, these > could start to pile up in their inventories. > > *3. How many classes will be handled at one given time* > > For the fall semester, 3 simultaneous classes of 20 students + 1 teacher > will probably be the max. This is simply because our teachers will be > working in shifts and sharing three workstations here in Beijing. > > *4. How big is the pipeline between the kids home to the server* > > There is probably going to be some variation here. Some kids may be > logging in from well equipped school computer labs for class sessions, > others may be logging in from home to do an assignment or have a tutoring > session. > > > On Mon, Jun 22, 2009 at 11:52 AM, Michael Cortez <mcor...@gmail.com>wrote: > >> Andrew Hughes wrote: >> > Thanks for your info, it's really shedding light on this issue. I >> > might not of explained what I am after in detail. I am not looking to >> > run 1 sim, I am looking to run multiple sims that will handle the load >> > of 800 users. I do not know how to make those sims (not regions I know >> > how to make the xml file and make another island) but the server side >> > software connect together on one machine to handle the load. To make >> > that type of grid, does anyone know where we could actually obtain >> > those servers? >> OpenSim itself includes the executables necessary to create a grid and >> have multiple OpenSim instances (each with 1 or more regions) connect >> together. These are what you would normally call the UGAIM (User Grid >> Asset Inventory Messaging) services. These services will need at least >> one server to run on, along with a database server such as MySQL or MSSQL. >> >> You mention 800 students, do you know what kind of concurrency you >> need? If your talking about only 30 to 60 students being live on the >> grid at a time thats a completely different scenario then having all 800 >> on at once. If you only need 30 to 60, I would suggest 4 to 6 regions >> with no more then 2 per OpenSim instance. This way they can all spread >> out when doing work, and not be crowded. A properly constructed lecture >> hall at the corners of 4 regions (each hosted on a separate server) >> would allow 30 to 60 students to gather to participate in a large event, >> while still spreading their concurrent load across multiple regions. >> >> Documentation is still pretty light on the entire system, but I would >> look at the "Standalone vs Grid" section on this page: >> >> http://opensimulator.org/wiki/Configuration >> >> Hope that helps, >> -- >> Michael Cortez >> >> _______________________________________________ >> Opensim-dev mailing list >> Opensim-dev@lists.berlios.de >> https://lists.berlios.de/mailman/listinfo/opensim-dev >> > > > > -- > Have a creative day, > > Andrew M Hughes > President > Designing Digitally Inc. > > -A Second Life ® Gold Solution Developer. > -A proud member of the Better Business Bureau with an overall BBB rating of > A-. > -General Services Administration (GSA) IT Schedule 70 Contract Holder. > > =================================================================================== > Address: 8401 Claude Thomas Rd. | Suite 23 | Franklin, OH 45005 > Phone: 866-316-9126 > Fax: 866-701-0029 > Email: hug...@designingdigitally.com > Website: http://www.designingdigitally.com > Blog: http://www.designingdigitally.com/blog/ > > =================================================================================== > CONFIDENTIALITY NOTICE: This email and any files transmitted with it are > confidential and intended solely for the use of the individual or entity to > which they are addressed. 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