[Opensim-dev] load sharing.....

[Terry F.]

Hi Johan,

Thank-you for your reply.
I understand your concern.
My thoughts are along the lines of making sure a region doesn't suddenly 
crash during an event such as an important meeting or other event.
Some events take a bit of planning to put into place and would be a 
shame to spoil all that hard work with a crash, especially if it 
happened while the meeting was just getting started. What chaos that 
would be trying to get it back up and everybody logged back in, etc.

I understand that this may not be of great importance at the moment... I 
wasn't trying to "Challenge" anyone to take up the project. I'm certain 
there are other more important things where you could spend your time... 
I was just thinking of the potential for a feature like this and it 
seemed like it may be similar to the load - balancing feature already in 
place.

Thanks again!
-Terry


????? ??? wrote:
> Hi Terry,
>
> As Adam suggested, the 3Di load balancing code has much of the functionality you request. We can already clone a region and specify for each copy how much it should update. We haven't implemented the scenario you describe (an active region with a standby region that you could switch do), but it is just a matter of extending the GUI and making small extensions to the current code. 
>
> So it is no technical problem, but is it worth doing? Who do you think would be interested in this functionality? I could do this, or direct someone to do it, if it is useful, but if it ends up not being used I'd rather use my time on other things.
>
> /Johan
>
> ----- Original Message -----
> From: "Adam Frisby" <adam at deepthink.com.au>
> To: terry at usfastweb.com, opensim-dev at lists.berlios.de
> Sent: Monday, July 14, 2008 3:14:20 PM (GMT+0900) Asia/Tokyo
> Subject: Re: [Opensim-dev] load sharing.....
>
> I know the 3Di load balancing code could potentially lend itself to this sort of application.
>
> The best method would be to somehow serialise the scene regularly and send that to a home sim, then write an application plugin to catch exceptions and if one occurs, manually send a "force teleport" (also known as a border crossing packet) to jump the user onto the standby.
>
> I don't actually think that would be insanely difficult to do.
>
> Adam
>
>   
>> -----Original Message-----
>> From: opensim-dev-bounces at lists.berlios.de [mailto:opensim-dev-
>> bounces at lists.berlios.de] On Behalf Of Terry F.
>> Sent: Sunday, 13 July 2008 9:59 PM
>> To: opensim-dev at lists.berlios.de
>> Subject: [Opensim-dev] load sharing.....
>>
>> Hi all,
>>
>> This question is being directed towards those of you with the
>> load-balancing knowledge, but others may know as well.
>> Hope it doesn't come across as a silly question.
>>
>> Would/could the load-balancing abilities be able to be configured in
>> such a way as to act like a "Mirror" and take over the region serving
>> responsibilities in the event of a simulator crash until the server was
>> able to be restarted?  Or... would the "Crash" event simply cause a
>> crash of all "Mirrored" instances as well?
>>
>> Just a thought... didn't know if it were a possibility or just wishful
>> thinking.
>>
>> Thank-you for your time,
>> -Terry
>>
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>>     
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