Also, there has been generalized confusion about HG in/out to/from
OSGrid. It looks like HG in OSGrid recently stopped working. This is not
because of OpenSim/HG itself, it's because the OSGrid setup is a lot
more complicated than a normal grid, and something seems to have been
misconfigured recently -- or is pushing the boundaries of OpenSim again.
OSGrid uses several proxies -- these are HTTP servers that are placed
between client requests and the actual OpenSim servers. Proxies are
common place on the Web in general, and I'm happy to see that OSGrid is
chartering territory in figuring out how to use them for OpenSim-based
worlds. But, as expected of new territories, it's a bumpy road. The
OSGrid admins haven't had time to revise their settings for the HG proxy
yet, which is clearly at fault in the failures.
On 12/12/2010 8:13 AM, Diva Canto wrote:
On 12/12/2010 2:26 AM, Ai Austin wrote:
The "interface" numbers I was referring to was something in a commit
a while ago which meant HG1.5 grids that previously could
interoperate stopped being able to do so. kidd peko of "The
Hypergates" started referring to HG1.5 i6 and the newer HG1.5 i7
grids to help testers and those interoperating know which sub-set
they were in.
OK, thanks for the clarification about where these numbers come from.
I understand the intention, but this numbering is misleading and,
essentially, incorrect when it comes to HG. Let me clarify.
We have been using "interface version numbers" to refer to
communications between simulators and their central services *within*
grids. We introduced these numbers mainly because of OSGrid, where the
central services are run by one group of people and the simulators are
run by others, and therefore the software upgrades are not coordinated.
The HG uses some of the communications that are used within grids,
and, as such, when these interface numbers change, it usually means
that HG between grids in different interface numbers may stop working.
I say "usually" but not "always"; it really depends on what changed,
because the HG uses only a subset of the grid communications. In the
case of the bump from interface 6 to 7, it affected the HG, because of
the way appearance is handled. (appearance handling is done in exactly
the same way intra- and inter- grids)
However, HG introduces a whole new set of communications that doesn't
exist within grids. And, so far, there hasn't been any number for
denoting this new set of comms, other than HG 1.0 vs. HG 1.5. As far
as I know, no changes within the HG 1.5 series have introduced
backwards incompatibilities. So if things don't work between grids in
interface number 7, they are bugs that can be fixed, if the situations
are properly reported.
HG version numbering doesn't exist yet, just like archive version
numbers haven't been put to use yet. Now it's about time that we start
introducing these version numbers. Justin is doing some of that for
archives, I'll try to do it for HG too.
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