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<DIV><FONT face=Arial size=2>Would this explain why DSL home hosted adjacent
sims crossing is so shaky sometimes ?</FONT></DIV>
<DIV><FONT face=Arial size=2>In this case, I am afraid such simulators
could also not take advantage of the new load balancing
feature.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="font-color: black"><B>From:</B> <A title=michaelwri22@yahoo.co.uk
href="mailto:michaelwri22@yahoo.co.uk">Michael Wright</A> </DIV>
<DIV><B>Sent:</B> Thursday, March 06, 2008 12:47 PM</DIV>
<DIV><B>To:</B> <A title=opensim-dev@lists.berlios.de
href="mailto:opensim-dev@lists.berlios.de">opensim-dev@lists.berlios.de</A>
</DIV>
<DIV><B>Subject:</B> Re: [Opensim-dev] Concerning recent grid instability
andinconsistency</DIV></DIV></DIV>
<DIV><BR></DIV>I haven't had much time to follow this discussion, but just a
quick note. We used to have a REST like communications protocol between the
regions, but this lead to a lot of problems. Granted it was like the rest of the
backend protocols we use, very err primitive. But I just not sure http/xml is
the best protocol to be used there, as a lot of the calls are time critical. And
there are some things we are yet to add which would increase the network traffic
between the regions by quite a bit. Thats why we switched to remoting so we
could at least have a binary protocol. Maybe we do need to switch to udp, like I
believe Linden Labs do (or at least they used to).<BR><BR><B><I>Brian McBee
<heartwide@gmail.com></I></B> wrote:
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">Coming
late to this discussion, but i have a couple of comments about our use of
remoting in the interregion communications:<BR><BR>1. It seems like remoting
is really designed for a scenario where you own both the client and server
ends of the connection, and have a reasonable expectation that the server is
up. In a distributed grid environment like OSGRID is running, that assumption
isn't true.<BR><BR>2. When playing with the teleport code, I tried to find a
way to lower the timeout on the remoting calls, since a failed teleport took
forever to resolve. It appears that, at least the way we are doing it, the
timeout is hardcoded and cannot be changed. It looks like Microsoft tries to
provide a way to change that timeout, but it doesn't actually
work.<BR><BR>Perhaps longer term, we should be looking at replacing remoting
with a REST interface like we are using for the sim to grid
communications.<BR><BR><BR>_______________________________________________<BR>Opensim-dev
mailing
list<BR>Opensim-dev@lists.berlios.de<BR>https://lists.berlios.de/mailman/listinfo/opensim-dev<BR></BLOCKQUOTE><BR>
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