Angel on 8 Dec 2009 06:00:21 -0800


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Re: Philly Lambda December Meeting


All many thanks for the opportunity to present CouchDB. As expected
from this group, a few errors where pointed out to me:

#1 :

MVCC is not special to Couch, and in fact most databases already use
this technique to serve read requests while a write is occurring. A
notable exception in MySQL's MyISAM storage engine, which does table
level locks on write.

#2:

POSTing a new document to the database URL will in fact auto-generate
a UUID for the ID.

curl -B -X POST http://localhost:5984/friendbook -d '{"name":
"test"}'
{"ok":true,"id":"566e349485cfddfd94471212f4808518","rev":"1-49ce25e3db701c8cb613c1fd18d99619"}

The "-B" flag is telling curl to encode the data as ASCII


Please pipe up if there were any other mistakes. Slides will be on
slideshare.net shortly. Search for delagoya and couchdb, should come
right up.

Last note, I was pretty out of it last night and forgot to leave some
cash for my beer. I owe someone a malty beverage.
-angel

On Nov 29, 5:50 pm, Angel <delag...@gmail.com> wrote:
> One note, on aaron's suggestion, as well as based on the interest
> shown at other talks , I'll be cutting out some of the more intro
> material in favor for a look under the hood of couch, as well as a
> practical distributed deployment scenario.
> -Angel
> On Nov 26, 10:30 pm, Aaron Feng <aaron.f...@gmail.com> wrote:
>
>
>
> > For those who didn't get a chance to catch Angel Pizarro's CouchDB
> > presentation at Bar Camp or ALT.NET, he will be doing it again for us.
> >  Once again, I started a doodle page for the meeting, so please select
> > any days that you can make it.  In about a week or so I'll pick the
> > *most* popular date for the presentation.  Also please use your real
> > name so I can add you to the building's access list.
>
> > Doodle participate page:
>
> >http://www.doodle.com/8z85yyw9sh9upi28
>
> > The presentation will be hosted at the usual place, Algorithmics, 2929
> > Arch St, Philadelphia.
>
> > Here's the description for the presentation:
>
> > CouchDB: No SQL? No Driver? No problem
> > CouchDB is representative of a set of document-oriented database that
> > have come to the fore of the collective geek consciousness. At it's
> > heart it is a key-value store, but it can query into (and index)
> > specific properties of the documents for fast performance. What makes
> > CouchDB unique is it's MVCC transactional model and emphasis on using
> > HTTP communication as the connection mechanism. In this talk we'll
> > cover usage of CouchDB with a simple example, as well as look at when
> > (and when not) such a database makes sense to use in favor of
> > traditional relational databases.
>
> > Thanks,
>
> > Aaron