[Monotone-devel] Re: Setting up a "cluster" of monotone servers

[Graydon Hoare]

Richard Levitte - VMS Whacker wrote:
> In message <address@hidden> on Mon, 29 Jan 2007 10:18:43 +0100, "Václav_Haisman" 
> <address@hidden> said:
>
> v.haisman> >  2. Propagation of changes.
>
> v.haisman> This looks like a bad approach to solve the problem. Unless
> v.haisman> I am mistaken, this is all because monotone locks the whole
> v.haisman> DB whenever anybody accesses it. Well, would it not make
> v.haisman> more sense to somehow lift this restriction instead?
>
> Mmmmm, not sure that it's enough to lift that restriction.  I'm
> guessing such a move comes with consequences we may not be ready for.
>
> Another solution could be a proxy that acts as a client to two servers
> and thereby synchronises them.  Sounds a bit complex, though, if the
> same functionality can be easily built into monotone itself.

You can build that today, with a proxy, but I prefer a situation in 
which the servers sync amongst themselves periodically. I've assumed 
this will be an eventual part of policy-branch work: a policy for how 
often server-initiated syncs occur, and which servers to try. Probably 
something like "every N minutes, if I've received anything new".

-graydon