[Opensim-users] [PROPOSAL]: Sim version filtering (was Re: Sim Version Filtering (re: Mantis #0002361...)
James Stallings II
james.stallings at gmail.com
Wed Nov 5 22:25:45 UTC 2008
Yes I can definitely appreciate that there are some good things to be said
about a 'release often and early' strategy - but we do need to strike a
balance with stability.
Also, I am far less concerned about features than stability. If we are
stable, I'd be willing to increase my CFM coeficient for a release *winks*
I *think* we are pretty much feature-complete as far as a 0.6 stomp goes
anyways.
As far as this sim filtering code goes, I really have some half-educated
hope that it might help us somewhat with the stability problem.
Cheers!
James
On Wed, Nov 5, 2008 at 2:48 PM, Justin Clark-Casey <jjustincc at googlemail.com
> wrote:
> Charles Krinke wrote:
> > My key issue on the 0.6 tag release is having a sufficient number of
> > folks comfortable with moving forward. Nebadon and daTwitch are two
> > folks I depend on to help move us in an "increasing reliability and
> > stability" direction. So, I would appreciate both feeling a bit more
> > comfortable with a 0.6 release. Perhaps we will get there by Sunday,
> > perhaps not.
>
> It just struck me that this can still be done for 0.6 even if it isn't in
> there by then. We would simply treat the
> interface version number as 0 if it isn't present, which would make it
> initially compatible until the next incompatible
> change.
>
> So please go ahead with the release without this. If the release doesn't
> happen on Sunday for whatever reason, I may
> insert this next week.
>
> >
> > Justin, if you want to add in your logic, please feel free. I can not
> > imagine that it will decrease stability or reliability in any way. As I
> > currently understand the problem, our issue for stability and
> > reliability is that a) Sims have been freezing, b) Sims seem to consume
> > memory until they start swapping or crash. If we feel that we have a
> > reasonable enough trunk to tag it as 0.6, I am delighted to do so, and I
> > hope we can get there by Sunday.
> >
> > I think the key criteria for this tagged release is not what features
> > exist, but rather, when we tag it, and those who only download tagged
> > releases start using it will a) It work at least half-way reliably b)
> > Connect to various grids c) Not increase our support overhead on IRC. If
> > those three constraints are met, then I would vote "full speed ahead and
> > darn the torpedoes".
> >
> > Charles
> >
> > ----- Original Message ----
> > From: Justin Clark-Casey <jjustincc at googlemail.com>
> > To: opensim-users at lists.berlios.de
> > Sent: Wednesday, November 5, 2008 11:42:01 AM
> > Subject: Re: [Opensim-users] [PROPOSAL]: Sim version filtering (was Re:
> > Sim Version Filtering (re: Mantis #0002361...)
> >
> > Charles Krinke wrote:
> > > This seems eminently reasonable to me also.
> > >
> > > On the 0.6 front, I would like to aim for this coming Sunday to tag
> svn
> > > for a 0.6 release and start the cycle of zip/tarball and binaries for
> > > download. As a consequence, this week needs to be one of reliability
> and
> > > stability testing.
> >
> > Ah okay, if we are doing this Sunday then there probably isn't time to
> > both do this and give it a reasonable shakedown.
> > It would need an extra week, I think. It's your call - I'm easy
> > either way.
> >
> > >
> > > We had a few problems last week with freezes of regions and this
> appears
> > > to be getting better.
> > >
> > > This is the time to push for stability as we head towards Sunday with
> a
> > > few to how to minimize support issues on both this channel and our
> IRC.
> > >
> > > Charles
> > >
> > > ----- Original Message ----
> > > From: Sean Dague <sdague at gmail.com <mailto:sdague at gmail.com>>
> > > To: opensim-users at lists.berlios.de
> > <mailto:opensim-users at lists.berlios.de>
> > > Sent: Wednesday, November 5, 2008 7:28:42 AM
> > > Subject: Re: [Opensim-users] [PROPOSAL]: Sim version filtering (was
> Re:
> > > Sim Version Filtering (re: Mantis #0002361...)
> > >
> > > Justin Clark-Casey wrote:
> > > > PROPOSAL FOR SIM VERSION FILTERING
> > > >
> > > > Not being able to stop sim versions that implement obsolete comms
> > > interfaces from connecting to a grid is becoming an
> > > > increasingly awkward problem. As you can imagine, it leads to a
> high
> > > volume of support requests, particular if the grid
> > > > is upgrading quite often (which is the case in large development
> test
> > > grids).
> > > >
> > > > There has been a proposal (in
> > > http://opensimulator.org/mantis/view.php?id=2361) to have the region
> > > server send its SVN
> > > > revision number to enable filtering by the grid server. However,
> I'm
> > > not a fan of this idea for the reasons outlined in
> > > > the e-mails further below (ties us into a source control system,
> not
> > > necessarily present in binaries/source, not
> > > > friendly to non OpenSim implementations).
> > > >
> > > > Therefore, I am going to propose that there is an interface version
> > > number in OpenSim.Framework.Servers.VersionInfo.cs
> > <http://OpenSim.Framework.Servers.VersionInfo.cs>
> > > <http://OpenSim.Framework.Servers.VersionInfo.cs>.
> > > > This is separate from the OpenSim version, and would increase by 1
> > > every time a change was made to OGS1 or interregion
> > > > interfaces that was incompatible with older versions.
> > > >
> > > > So the sequence would be 1, 2, 3, 4, ...
> > > >
> > > > On region connection, the version number would be sent. If it
> > > differs from that of the grid, the grid would refuse
> > > > connection with a message advising version upgrade (or possibly
> > > downgrade)
> > > >
> > > > The advantages of this approach are that
> > > >
> > > > a) We don't use the SVN revision number
> > > > b) Grid operators don't have to manually determine which regions
> are
> > > compatible
> > > >
> > > > The disadvantages are
> > > >
> > > > a) Developers have to upgrade the number themselves. I don't
> > > believe this is a huge burden. It's also not a disaster
> > > > if this is forgotton - one just upgrades it on the next commit.
> > > >
> > > > This may be the simplest thing that could possibly work whilst
> > > avoiding the disadvantages of using the SVN number. One
> > > > can get more elaborate (e.g. minor verion numbers for compatible
> > > changes) but I don't think the complication is
> > > > worthwhile or known to be workable at this point.
> > > >
> > > > Comments?
> > >
> > > +1 on this approach. I like not using svn version, as that restricts
> > > compatibility too much. I also think we'll have a good success rate
> at
> > > figuring out that something is destabalizing change.
> > >
> > > I'd *highly* suggest this goes in before 0.6, so that 0.6 regions
> > > participate in this system. This will be important as a lot of people
> > > will probably go to 0.6 when it comes out and get off the svn tracking
> > > at that point.
> > >
> > > -Sean
> > >
> > > --
> > > Sean Dague / Neas Bade
> > > sdague at gmail.com <mailto:sdague at gmail.com> <mailto:sdague at gmail.com
> > <mailto:sdague at gmail.com>>
> > > http://dague.net
> > >
> > >
> > >
> > >
> ------------------------------------------------------------------------
> > >
> > > _______________________________________________
> > > Opensim-users mailing list
> > > Opensim-users at lists.berlios.de <mailto:Opensim-users at lists.berlios.de
> >
> > > https://lists.berlios.de/mailman/listinfo/opensim-users
> >
> >
> > --
> > justincc
> > Justin Clark-Casey
> > http://justincc.wordpress.com
> > _______________________________________________
> > Opensim-users mailing list
> > Opensim-users at lists.berlios.de <mailto:Opensim-users at lists.berlios.de>
> > https://lists.berlios.de/mailman/listinfo/opensim-users
> >
> >
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Opensim-users mailing list
> > Opensim-users at lists.berlios.de
> > https://lists.berlios.de/mailman/listinfo/opensim-users
>
>
> --
> justincc
> Justin Clark-Casey
> http://justincc.wordpress.com
> _______________________________________________
> Opensim-users mailing list
> Opensim-users at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-users
>
--
===================================
The wind
scours the earth for prayers
The night obscures them
http://osgrid.org
http://del.icio.us/SPQR
http://twitter.com/jstallings2
http://www.linkedin.com/pub/5/770/a49
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://opensimulator.org/pipermail/opensim-users/attachments/20081105/18352c6a/attachment.html>
More information about the Opensim-users
mailing list