On Wed, Jun 24, 2009 at 1:37 PM, Daniel Kinzler <daniel.kinzler@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@gmail.com <mailto:avarab@gmail.com>> wrote:
>
>     On Wed, Jun 24, 2009 at 12:22 PM, Daniel
>     Kinzler<daniel.kinzler@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
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Wikimedia Deutschland

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