ignite-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Konstantin Boudnik <...@apache.org>
Subject Re: Data Snapshots in Ignite
Date Thu, 22 Oct 2015 01:48:18 GMT
On Wed, Oct 21, 2015 at 05:58PM, Dmitriy Setrakyan wrote:
> On Wed, Oct 21, 2015 at 4:48 PM, Konstantin Boudnik <cos@apache.org> wrote:
> 
> > I like it quite a bit, as well! Ticket would make the most sense as well,
> > so
> > there will be a single place to collect the design docs (if needed), etc.
> >
> > On Wed, Oct 21, 2015 at 04:45PM, Dmitriy Setrakyan wrote:
> > > I also really like the idea. One potential use case is fraud analysis in
> > > financial institutions. Rarely it makes sense to perform such analysis
> > on a
> > > life system, but rather a snapshot of some data needs to be taken and
> > > analyzed offline.
> > >
> > > I think snapshots should be saved to disk, so users could load them for
> > > analysis on a totally different cluster.
> >
> > I think disk persistence should be optional, not mandatory.
> >
> 
> I would actually prefer to support disk-only snapshots. I think it will be
> difficult (double-the-work) to support both, in-memory and disk formats.
> Also, storing snapshots in-memory would require extra memory (a lot of it)
> for something that gets saved mainly for historic purposes or offline
> analysis.

Ah, good points! Agree.


Mime
View raw message