On Wed, Jun 24, 2009 at 1:37 PM, Daniel Kinzler <daniel.kinzler(a)wikimedia.de
wrote:
From what i gathered from our conversation earlier,
XAPI's index is too
large
for Cassini. It would have to go on the main server. I propose to talk to
Sven
and Jens about it. Or what do you mean by "a mirror of the API"?
XAPI is a replication of the main OSM database that is maintained to be
current within about 30 minutes of the real OSM database. It exposes the
data through a similar API to the real OSM database. It requires about
300Gb of disk.
There was a point made earlier that there wouldn't be space for XAPI because
that would leave no room for the replicated database. Now it seems
questionable whether there's a real need for an additional replicated
database on osm-ts. What role would it play, what applications would use
it?
80n
> -- daniel
>
> 80n schrieb:
> > What would a mirror of the database be used for? A mirror of the API,
> > which is what XAPI provides would perhaps be more useful.
> >
> > Is there a list of proposed applications? The only one I know of is
> > query-to-map.
> >
> > 80n
> >
> >
> >
> > On Wed, Jun 24, 2009 at 1:28 PM, Ævar Arnfjörð Bjarmason
> > <avarab(a)gmail.com <mailto:avarab@gmail.com>
wrote:
> >
> > On Wed, Jun 24, 2009 at 12:22 PM, Daniel
> > Kinzler<daniel.kinzler(a)wikimedia.de
> > <mailto:daniel.kinzler@wikimedia.de>
wrote:
> > >> With regards to cassini (the toolserver) it now has a
free 345 GB
> > /sql
> > >> partition. We could wait for the main osm-db server to be set up
> and
> > >> set up replication there, or set up cassini as a stand-alone
> server
> > >> which could be moved to replication later.
> > >>
> > >> When can we expect the main osm-db to be online? And did anyone
> who's
> > >> more familiar with setting up osm replication than me volunteer
> > to set
> > >> it up already?
> > >
> > > Originally, no replication was planned. Would the space even be
> > sufficient?
> >
> > Maybe:) This is the current space the DB is taking @ OSM:
> >
http://pastebin.com/f39a15e34
> >
> > Maybe a Planet.osm import is smaller than that though. I could check
> > and see if it fails.
> >
> > I was under the impression that replication was planned so that users
> > on the osm-ts would have access to the DB without hammering the main
> > DB (which would be there for production tools) with expensive
> queries.
> >
> > Or so I gathered from our talk on IRC on the toolserver channel, but
> > may have misunderstood you.
> >
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> --
>
> Daniel Kinzler
> Software Developer
> Wikimedia Deutschland
>
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