couchdb-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From kowsik <>
Subject Re: Erlang vs Scala
Date Wed, 08 Apr 2009 05:30:22 GMT
I'm curious, what part of the stdlib (OTP) does Couch actually use and
what exactly about the Erlang VM is special? I, personally, am pretty
comfortable with a wide array of languages (Erlang excluded for now)
and to me the conceptual idea of persistent BTree's with map/reduce
over stdin/stdout to view servers matters way more than what language
it's written in currently. It's exactly why I chose to write the
CouchDB emulator in JavaScript and also why I'm super comfortable
working with CouchDB. I never see or encounter Erlang. All I see,
functionally, is REST + JS and I can extrapolate the inner workings
from there.

While I'm not necessarily advocating CouchDB to be rewritten in
another language, I am wondering the choice of Erlang over other more
"prevalent" languages. Given the time I have at hand, I definitely
don't see myself contributing a lot in Erlang, though I could help in
the view server that's in JavaScript.



On Tue, Apr 7, 2009 at 3:41 AM, Jan Lehnardt <> wrote:
> On 7 Apr 2009, at 10:12, Wout Mertens wrote:
>> Hi everyone,
>> I've always been worried about the fact that CouchDB runs on Erlang. After
>> all, the Erlang ecosystem isn't that large or well-established in
>> (non-telephony) enterprise settings.
>> [...]
>> So I'm wondering what everybody here thinks.
> To me Erlang is three things: The language, the stdlib (OTP) and the VM
> (BEAM). These three things make Erlang the success it is (in my opinion).
> Strip out BEAM and replace with JVM and you get something "less" (in my
> opinion). I understand that running on the JVM and using the Java ecosystem
> is a bonus for some people, but it is not for me*.
> In case it is not clear, this is just my opinion. :)
> * There are cases that can be easily found where I'd decide that using the
> JVM is a good idea. CouchDB is not one of them.
> Cheers
> Jan
> --

View raw message