On Feb 8, 2007, at 8:41 PM, Richard Troy wrote:
It'd be great if Jan considers the blending of replication; any
given DB
instance shouldn't be only a master/originator or only a slave/
subscriber.
A solution that lets you blend replication strategies in a single
db is,
from my point of view, very important.
It might be constructive to define what a minimal "complete" set of
replication primitives actually is in addition to which ones should
be implemented. In addition to master/slave models, you have Paxos
algorithms and dynamic reconfiguration models in literature that can
utilize many of the same primitives but which are very different in
implementation. I see the value of Jan's proposal, but perhaps it
would be better to step back and make some assertions about the
nature of the core capabilities that will be supported in some
broader picture. Having a theoretically (mostly) complete set of
usable primitives would be an incredibly powerful feature set.
Cheers,
J. Andrew Rogers
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