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Sat Apr 19 01:31:08 UTC 2014

between machines that are across the internet.
However, this brings up another interesting topic..    generally Is a cheap
DSL connection going to be enough to host a 'ton' of users anyway?    You'd
think you'd have to want to host a ton of users to get any benefit from
using the load balancing.

Best Regards

Teravus

On 3/6/08, Grumly <grumly57 at hotmail.com> wrote:
>
>  Would this explain why DSL home hosted adjacent sims crossing is so shaky
> sometimes ?
> In this case, I am afraid such simulators could also not take advantage of
> the new load balancing feature.
>
>  *From:* Michael Wright <michaelwri22 at yahoo.co.uk>
> *Sent:* Thursday, March 06, 2008 12:47 PM
> *To:* opensim-dev at lists.berlios.de
> *Subject:* Re: [Opensim-dev] Concerning recent grid instability
> andinconsistency
>
>
> 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).
>
> *Brian McBee <heartwide at gmail.com>* wrote:
>
> Coming late to this discussion, but i have a couple of comments about our
> use of remoting in the interregion communications:
>
> 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.
>
> 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.
>
> Perhaps longer term, we should be looking at replacing remoting with a
> REST interface like we are using for the sim to grid communications.
>
>
> _______________________________________________
> Opensim-dev mailing list
> Opensim-dev at lists.berlios.de
> https://lists.berlios.de/mailman/listinfo/opensim-dev
>
>
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>
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> https://lists.berlios.de/mailman/listinfo/opensim-dev
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<div>From what I've read, it can assuming you don't have regions load balancing between machines that are across the internet.</div>
<div>However, this brings up another interesting topic..    generally Is a cheap DSL connection going to be enough to host a 'ton' of users anyway?    You'd think you'd have to want to host a ton of users to get any benefit from using the load balancing.</div>

<div> </div>
<div>Best Regards</div>
<div> </div>
<div>Teravus<br><br> </div>
<div><span class="gmail_quote">On 3/6/08, <b class="gmail_sendername">Grumly</b> <<a href="mailto:grumly57 at hotmail.com">grumly57 at hotmail.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div style="PADDING-RIGHT: 10px; PADDING-LEFT: 10px; PADDING-TOP: 15px" name="Compose message area" bgcolor="#ffffff">
<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>
<div style="FONT: 10pt Tahoma">
<div style="BACKGROUND: #f5f5f5">
<div><b>From:</b> <a title="michaelwri22 at yahoo.co.uk" onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:michaelwri22 at yahoo.co.uk" target="_blank">Michael Wright</a> </div>
<div><b>Sent:</b> Thursday, March 06, 2008 12:47 PM</div><span class="q">
<div><b>To:</b> <a title="opensim-dev at lists.berlios.de" onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:opensim-dev at lists.berlios.de" target="_blank">opensim-dev at lists.berlios.de</a> </div></span><span class="q">
<div><b>Subject:</b> Re: [Opensim-dev] Concerning recent grid instability andinconsistency</div></span></div></div>
<div><br> </div>
<div><span class="e" id="q_11885331ff6ea3ac_4">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 <<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:heartwide at gmail.com" target="_blank">heartwide at gmail.com</a>></i></b> wrote: 
<blockquote 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>
<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:Opensim-dev at lists.berlios.de" target="_blank">Opensim-dev at lists.berlios.de</a><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="https://lists.berlios.de/mailman/listinfo/opensim-dev" target="_blank">https://lists.berlios.de/mailman/listinfo/opensim-dev</a><br>
</blockquote><br></span></div>
<p>
<div><span class="e" id="q_11885331ff6ea3ac_6">
<hr size="1">
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<p>
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<span class="q">
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