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From madhuka udantha <madhukaudan...@gmail.com>
Subject Re: [GSOC 2015] COUCHDB-2605 Visualize the CouchDB Cluster
Date Wed, 01 Apr 2015 05:29:06 GMT
Hi Sebastian,

Thanks for the quick reply for my query. I will go through the resources'
links and update you all on it.

On Wed, Apr 1, 2015 at 2:39 AM, Sebastian Rothbucher <
sebastianrothbucher@googlemail.com> wrote:

> Hi Madhuka,
>
> concerning Revisions specifically, there is some great writing at
> http://guide.couchdb.org/draft/conflicts.html and
> http://writing.jan.io/2013/12/19/understanding-couchdb-conflicts.html
> The essence is that CouchDB (more or less) arbitrarily but
> deterministically (!) picks a winner in case of a conflict. Be aware that
> old revisions are not necessarily kept. As soon as you "compact" the DB (in
> Futon / Fauxon or via curl), they are gone. So you can't use them as SVN/
> git replacement ;-)
>
> In terms of internal code structure, I'm sorry I can't really help out, I
> guess building does the trick to quite some extent. Basically, before Couch
> 2.0 there was one HTTP endpoint written in Erlang (port 5984) which did all
> the magic (including the possibility to add custom endpoints to it). With
> Couch 2.0, there is a 2nd one for the cluster (which is why there is two
> ports: 5984 - pointing to the NEW cluster http handling, as far as I know
> in "chttpd") and the existing one, now at port 5986 (or 15984 / 15986,
> 25984/25986, etc. when running several nodes).
>
> Probably s/o else can help you with the Erlang stuff
>
> Good luck
>     Sebastian
>
> On Tue, Mar 31, 2015 at 7:25 PM, madhuka udantha <madhukaudantha@gmail.com
> >
> wrote:
>
> > Hi All,
> >
> > Can you point out some resources  /  tutorials to understand the code
> base
> > of couchDB 2.0?
> > Since I am trying to familiarize myself  with the couchDB2.0 code
> structure
> > and architecture (mainly for cluster level)
> >
> > Thanks
> >
> > On Thu, Mar 19, 2015 at 11:45 AM, madhuka udantha <
> > madhukaudantha@gmail.com>
> > wrote:
> >
> > > Hi. All
> > >
> > >
> > >
> > > I'm Udantha. I'm a MSc. Student at University of Moratuwa. This
> > particular
> > > project looks interesting to me. Since I have previous experiences on
> > > visualization(web portals / dashboards [1]), javascript [2], html5,
> REST
> > > etc.
> > >
> > >
> > >
> > > Under guidance of Alexander Shorin, Robert Kowalski and Sebastian
> > > Rothbucher, I have started the initial phase. Building
> > > (/developer-preview/2.0/) from source and pointing out few small bugs
> in
> > > build process. Going through the REST api[3] and following few
> > > tutorials[4]. If there are any material or ideas that can help for
> > > $subject, please let me know.
> > >
> > >
> > > Here is the list of features that I gain over the period of time (this
> > can
> > > be change). Your ideas and view will be grateful in here.
> > >
> > >
> > >
> > >    - Visualize the Couch DB Clusters with nodes (icons, grouping)
> > >    - Memory usage on each node in the cluster.
> > >    - Charting and graph representation of memory usage over the nodes
> > >    - Notification center
> > >    - Where it will give notification for user when he/she reaches
> memory
> > >       limits
> > >       - Notification over documents/ document count
> > >    - Summary of each node (name of the Databases, recent DB updates on
> > >    each)
> > >    - List databases cluster/node
> > >    - Drag and Drop supporting for DB over the nodes *
> > >    - Basic operation for node/DB can be done with interactive user
> > >    interface*
> > >    - Retrieving stats/actives*
> > >
> > >
> > > Your ideas are welcome in here.
> > >
> > >
> > >
> > > [1] https://github.com/wso2/product-ues/
> > >
> > > [2] https://github.com/wso2/jaggery
> > >
> > > [3] http://couchdb.readthedocs.org/en/1.6.1/api/server/common.html
> > >
> > > [4]
> https://github.com/ryanflorence/react-training/tree/gh-pages/lessons
> > >
> > >
> > > Thanks,
> > > --
> > > Madhuka Udantha
> > > http://madhukaudantha.blogspot.com
> > >
> >
> >
> >
> > --
> > Cheers,
> > Madhuka Udantha
> > http://madhukaudantha.blogspot.com
> >
>



-- 
Cheers,
Madhuka Udantha
http://madhukaudantha.blogspot.com

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