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Posted to user@couchdb.apache.org by Johannes Schneider <ma...@cedarsoft.com> on 2010/09/04 10:36:38 UTC
[Newbie] Partial replication
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Hi guys,
I have started learning CouchDB two days ago. And I really like it.
While I have read a good part of CouchDB The Definitive Guide, I might
have missed the crucial part..
At first I wanna say thanks for that great product. The first impression
is impressive...
Second I have a question about attachments and/or replication.
Think about that kind of product:
Storage of (large) media files (e.g. raw photos). For each media file
there are a lot of data entries (comments, ratings, discussions...).
And of course there are previews in different sizes.
Now I'd like to implement a client on Android (based on
http://www.couch.io/android). And I like that idea of replicating the
database to the mobile device.
But of course I just want a part of my database on the Android.
I never want the large raw files. And I don't only need a part of the
previews (those that correspond to the screen size).
But I also don't want to download the complete database (which might
contain millions of documents). I'd prefer to have some kind of
semi-intelligent algorithm (maybe download the last n entries or
something like that). Or maybe just some documents used for overview
pages (view results).
And of course it should be possible to download the missing documents on
request...
Is this possible with CouchDB? If yes, could you give me some
hints/keywords so that I can continue my search...
Thanks,
Johannes Schneider
- --
Johannes Schneider - blog.cedarsoft.com
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Re: [Newbie] Partial replication
Posted by Johannes Schneider <ma...@cedarsoft.com>.
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Hash: SHA1
On 09/04/2010 03:55 PM, Kenny Stone wrote:
> Filtered replication
>
> http://wiki.apache.org/couchdb/Replication#Filtered_Replication
Thanks. Missed that completely...
One more link I found useful (if anybody else reads this in the future):
http://blog.couch.io/post/468392274/whats-new-in-apache-couchdb-0-11-part-three-new
I will start a few tests...
>
> --
> Kenny
>
> On Sep 4, 2010, at 3:36, Johannes Schneider <ma...@cedarsoft.com> wrote:
>
> Hi guys,
>
> I have started learning CouchDB two days ago. And I really like it.
> While I have read a good part of CouchDB The Definitive Guide, I might
> have missed the crucial part..
>
> At first I wanna say thanks for that great product. The first impression
> is impressive...
> Second I have a question about attachments and/or replication.
>
>
> Think about that kind of product:
> Storage of (large) media files (e.g. raw photos). For each media file
> there are a lot of data entries (comments, ratings, discussions...).
> And of course there are previews in different sizes.
>
> Now I'd like to implement a client on Android (based on
> http://www.couch.io/android). And I like that idea of replicating the
> database to the mobile device.
> But of course I just want a part of my database on the Android.
> I never want the large raw files. And I don't only need a part of the
> previews (those that correspond to the screen size).
>
> But I also don't want to download the complete database (which might
> contain millions of documents). I'd prefer to have some kind of
> semi-intelligent algorithm (maybe download the last n entries or
> something like that). Or maybe just some documents used for overview
> pages (view results).
> And of course it should be possible to download the missing documents on
> request...
>
>
> Is this possible with CouchDB? If yes, could you give me some
> hints/keywords so that I can continue my search...
>
>
>
>
> Thanks,
>
> Johannes Schneider
- --
Johannes Schneider - blog.cedarsoft.com
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Re: [Newbie] Partial replication
Posted by Kenny Stone <ks...@connamara.com>.
Filtered replication
http://wiki.apache.org/couchdb/Replication#Filtered_Replication
--
Kenny
On Sep 4, 2010, at 3:36, Johannes Schneider <ma...@cedarsoft.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi guys,
>
> I have started learning CouchDB two days ago. And I really like it.
> While I have read a good part of CouchDB The Definitive Guide, I might
> have missed the crucial part..
>
> At first I wanna say thanks for that great product. The first impression
> is impressive...
> Second I have a question about attachments and/or replication.
>
>
> Think about that kind of product:
> Storage of (large) media files (e.g. raw photos). For each media file
> there are a lot of data entries (comments, ratings, discussions...).
> And of course there are previews in different sizes.
>
> Now I'd like to implement a client on Android (based on
> http://www.couch.io/android). And I like that idea of replicating the
> database to the mobile device.
> But of course I just want a part of my database on the Android.
> I never want the large raw files. And I don't only need a part of the
> previews (those that correspond to the screen size).
>
> But I also don't want to download the complete database (which might
> contain millions of documents). I'd prefer to have some kind of
> semi-intelligent algorithm (maybe download the last n entries or
> something like that). Or maybe just some documents used for overview
> pages (view results).
> And of course it should be possible to download the missing documents on
> request...
>
>
> Is this possible with CouchDB? If yes, could you give me some
> hints/keywords so that I can continue my search...
>
>
>
>
> Thanks,
>
> Johannes Schneider
> - --
> Johannes Schneider - blog.cedarsoft.com
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