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[ppsp] Implementing PPSP in Erlang/OTP

Dave Cottlehuber <dch@jsonified.com> Sat, 22 June 2013 09:47 UTC

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From: Dave Cottlehuber <dch@jsonified.com>
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Subject: [ppsp] Implementing PPSP in Erlang/OTP
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Hi,

By way of introduction I'm one of the authors of Apache CouchDB[1],
which is a native JSON document database, with a full HTTP "RESTish"
API, including multi-master replication and inbuilt conflict
management. It's written in a mix of Erlang/OTP[2] for the core, and
JavaScript for indexing and processing documents, and filtering
results.

I've been looking for a peer-to-peer algorithm for a while, and PPSPP
aka swift looks like a perfect fit, as well as giving me a taste of
implementing a protocol from scratch!

I've started on an implementation in Erlang, currently structured in 2 layers:

- PPSP layer using native Erlang message passing between nodes.
- A UDP layer on top of that to be able to talk to the Real World.

I'll have a few questions about the spec along the way no doubt.

A+
Dave
--
Founder, JSONified
dch@jsonified.com

[1]: http://couchdb.apache.org/
[2]: http://erlang.org/

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