What do you mean be selective replication?

On Tue, Sep 11, 2012 at 7:23 PM, Worthy LaFollette <[email protected]>wrote:

> Very good paper. Am curious now to the strategies for selective
> replication, which looks if done right would make the query generation more
> efficient.  Do you know of any papers on that subject?
>
> On Tue, Sep 11, 2012 at 1:37 PM, Ted Dunning <[email protected]>
> wrote:
>
> > Headed into Thursday's meetup, this paper by Jeff Dean provides a very
> good
> > description of strategies for getting fast response times with variable
> > quality infrastructure.
> >
> > http://research.google.com/people/jeff/latency.html
> >
> > The key point here is that it is very important to have asynchronous
> > queries with a cancel.  Above that level, there needs to be a simple
> > strategy for pushing second versions of queries out to the workers and
> > canceling defunct or redundant queries.
> >
>

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