Well, this goes both ways. It is not that unusual to take a node down for maintenance of some kind or even to have a node failure. In that case, it is very nice to have the load from the lost node be spread fairly evenly across the remaining cluster.
Regarding the cost of having several micro-shards, they are also an opportunity for threading the search. Most sites don't have enough queries coming in to occupy all of the cores in modern machines so threading each query can actually be a substantial benefit in terms of query time. On Thu, Dec 1, 2011 at 6:37 PM, Mark Miller <markrmil...@gmail.com> wrote: > To kick things off though, adding another partition should be a rare event > if you plan carefully, and I think many will be able to handle the cost of > splitting (you might even mark the replica you are splitting on so that > it's not part of queries while its 'busy' splitting). >
