[Opensim-dev] Concerning recent grid instability and inconsistency

[Brian Wolfe]

I agree 100% with you on the purpose and use of OSGrid. 

I also think you have done a great job on making the right decisions and
managing OSGrid. :) I don't think anyone else could have done any better
than you have.

Keep on truckin!

On Fri, 2008-02-29 at 07:14 -0800, Charles Krinke wrote:
> I guess I need to weigh in here a little bit and express a bit more of
> the testing opinion from the viewpoint of OSGrid.
> 
> We have a UGAI , some community regions (plazas), test regions I have
> set up (Yang & the moons), test regions others have setup & regions
> others have set up where they are using OpenSim.
> 
> In generaly, we want to keep the UGAI and the plazas up to svn as much
> as practical and reasonable for the developers. Also, we want to use
> only svn for the UGAI and the plazas. Others are encouraged to use
> other branches on test regions and compare their performance with svn,
> but we are trying to set the standard with the UGAI and the plazas.
> One of the primary short-term goals is to have a controlled
> environment to provide feedback to keep OpenSim moving in the
> direction of stability and reliability.
> 
> There have been and will still be times of instability. At those times
> we have 3 choices. 1) Go back to the last perceived stable revision 2)
> Stay at the current revision or 3) Move forward to the latest
> revision.
> 
> Each day when this decision is made, it is a balance to try to help us
> move forward in the most straight-forward manner. I cannot say that I
> always make the correct decision. Any input that the developers wish
> to make to effect choice 1, 2 or 3 on a regular basis will be given
> great weight. After all, we are trying to make it more reliable and at
> different times we need to adjust our update strategy for the benefit
> of OpenSim development and balance that for the greatest perceived
> stability in this major public grid.
> 
> This morning, the number of regions topped 200. The logins are running
> over 300 per day on average. Dozens of new accounts are added each
> day. There are 40000 assets in the mysql database. There is
> significant traffic on Wright Plaza on the order of dozens if
> different users.
> 
> So, we are beginning to deeply exercise the software and we find that
> in a heterogeneous network environment with a mixture of Windows and
> Linux servers spread over several continents running on pipes that go
> from cable modems to GigE interfaces is exposing data we would not
> normally see with quick stand alone tests after a commit.
> 
> I would urge us to use this resource more to wring out the details of
> how our software is performing as others begin deploying it in other,
> even less controlled setups. Please invent tests that allow all of us
> to compare Windows/Linux, differing revisions, inventory usage
> scenarios and others to allow us to make our software more robust.
> 
> Charles
> 
> ----- Original Message ----
> From: Brian Wolfe <brianw at terrabox.com>
> To: opensim-dev at lists.berlios.de
> Sent: Friday, February 29, 2008 6:48:48 AM
> Subject: Re: [Opensim-dev] Concerning recent grid instability and
> inconsistency
> 
> Well, so far as one of those many that's handled the packet code, I've
> been chasing down some inefficiencies in the login sequence. I could
> use
> some more people trying out the UserThreadPoolBranch of the repo.
> 
> If you understand git then you can fetch a more recent version that
> was
> just merged against trunk yesterday at
> http://brianw.terrabox.com/OpenSim/OpenSim.git  as branch UTPBranch
> (or
> was it UserTHreadPool, brain wonky before first coffee)
> 
> It replaces the thread per user creation with a dedicated threadpool.
> Some people report one impression, others another, andit works "great"
> for me personally. So more eyes on what it's doign to syetems would be
> appreciated. :)
> 
> 
> 
> 
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