[Opensim-users] So much fun in a so little box

[Dr Ramesh Ramloll]

Thanks for sharing :) this gives me a few ideas.
R


On Sat, Aug 23, 2014 at 10:24 AM, Jeff Kelley <opensim at pescadoo.net> wrote:

> That was 6 months ago and I was in search of a host for a small grid. It
> should be low-cost, and I should have full access to the server and the
> database through ssh.
>
> After a test on a dedicated server, I settled the price tag for a hosted
> machine should be around 30¤/month. [Prices have changed since I have made
> my decision. I can now have a i3 8G for 15¤/month, which is exactly the
> configuration I'm running]
>
> But there was a special offer at my favorite hardware supplier I could not
> resist : A 128¤, low-size, low-power Core i3 "Next Unit Computing". This is
> a barebone. You have to add 8Gb RAM (65¤) and a 60Gb SSD (54¤).
>
> http://techreport.com/review/23888/review-intel-next-unit-of-computing
>
> I do not recommend this model specifically. This is not a buying guide.
> There is a large choice of mini-PC at Shuttle, Gigabyte, Zotac, Acer...
> from Celeron to i7. Graphic power is a no-issue since the machine will run
> screenless.
>
> Of course, if you sit it on a DSL like I do, bandwith is scarce. Get
> crappy hardware or get crappy network, so is the deal when budget is low.
>
> The NUC arrives in a music box. Literally. It plays the Intel logo when
> you open it. So kitsch! My OS pick was CentOS 64. I chose the minimal
> install CD to spare my SSD. Some yum later, it was compiling gdi+ and MONO
> (maybe there is a gdi+ repo somewhere, anyway that's a short build. MONO is
> a hefty one).
>
> wget the last opensim tarball, install and configure. Fast and smooth. The
> grid is running 10 regions in 6 simulators (one simulator for the HG login
> region, one for the sandbox, five simulators with two regions each).
>
> http://www.pescadoo.net/tmp/grid_monitoring_panel.png
>
> Four avatars can log with no noticeable lag. There usually are two
> builders, a scripter, one friend or two chatting around. The machine
> consumes only 13W. These are actual, measured watts. Processor load less
> than 5% each core. Used RAM 6.3Gb. MySQL large-pages enabled.
> innodb_buffer_pool_size bumped to 256MMb. NEVER stick to the 8Mb default!
>
> Everything is done through HG. All objects and object's content are set to
> group and shared with a SQL script so nobody gets stuck with uneditable
> objects. The team is advised to use HG1.0 XInventoryService when possible,
> to get full acces to their inventories. Automatic OAR every 10 hours and
> nightly SQL dump. NFS share to host the big files. Finally, there is voice
> since it speeds up things so much.
>
> Why stop here?
>
> I usually am reluctant to try oar's because they pollute the database.
> Remember, this is a low-cost project and I have only 60Gb of disk. Wouldn't
> that be nice if we had a trashable standalone just for that? Load anything
> you like, then DROP DATABASE when finished. Here we go. Duplicate the bin
> folder, configure, create a database and voila. The Mini-PC is now running
> a total of 19 regions.
>
> All this in a 4" x 4" x 2" box.
>
>
> -- Jeff
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-- 
'Consider how the lilies grow. They do not labor or spin.'
*Rameshsharma Ramloll* PhD, CEO CTO DeepSemaphore LLC, Affiliate *Research
Associate Professor*, Idaho State University, Pocatello, ID 83209 Tel:
208-240-0040
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