[erlang-questions] Kai - An Open Source Implementation of Amazon's Dynamo

Takeru INOUE takeru.inoue@REDACTED
Sun Jul 13 18:15:58 CEST 2008


As I mentioned in the reply to Justin, I'd like to discuss element
technology such as reliability and vector clocks.

I subscribed CouchDB developer list :-)


On Sun, Jul 13, 2008 at 10:48 PM, Jan Lehnardt <jan@REDACTED> wrote:
> CouchDB is getting well known in Japan, especially its sophisticated
> RESTful interface.
> This is because Yohei, who supervised a translation of "RESTful Web
> Services", is intrigued with CouchDB.
>
> Wow, this is cool :) Thanks for the info.
>
> Is the interest in merging our systems mutual?
>
> This is interesting suggestion.
> We're now focusing on reliability and scalability, and keeping its
> interface simple; get(key) and put(key, value).
> But more complicated queries like CouchDB can be our future work, and
> it seems exciting.
>
> With CouchDB we have such an easy interface, so connecting should
> be trivial:
> GET /database/key == get(key)
> PUT /database/key
> value (in the PUT request body) == put(key, value)
> CouchDB also has more API calls for querying and all that,
> but that could be independent of the fault tolerance layer
> you provide. At least at first, to make things easier.
>
> Of course, you can merge our code into CouchDB freely, since Kai is
> based on Apache License 2.0.
>
> We are not very keen on just taking some code that we'd then have
> to maintain ourselves (or we are just lazy :). The truth is though, that
> a database system is enough work in itself and if we could make our
> systems interoperable both our teams would benefit and have less
> work to do.
> It'd be great if we can work together. I'll forward this mail to the
> CouchDB developer list and will keep an eye on the Kai lists as
> well.
> Cheers
> Jan
> --
>
> If  there anything is you would like to know, do
>
> not hesitate to contact me (here or in private if
>
> preferred).
>
> Keep up the good work!
>
> Cheers
>
> Jan
>
> --
>
>
> Kai is a distributed hashtable like Amazon's Dynamo.
>
> Dynamo is described in its original paper, as a highly available
>
> key-value storage system that some of Amazon's core services use to
>
> provide an "always-on" experience.
>
> Kai implements well-known memcache API, and you can access to Kai with
>
> your favorite programming language.
>
> Kai is hosted on sourceforge.net, where detailed information is found.
>
> http://kai.wiki.sourceforge.net/
>
> Also, source code can be downloaded.
>
> http://sourceforge.net/project/showfiles.php?group_id=228337
>
> If you are interested in Kai, read Getting Started and try it.
>
> http://kai.wiki.sourceforge.net/getting+started
>
> Regards,
>
> --
>
> Takeru INOUE <takeru.inoue@REDACTED>
>
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>
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>
> --
> Takeru INOUE <takeru.inoue@REDACTED>
>
>
>



-- 
 Takeru INOUE <takeru.inoue@REDACTED>



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