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From Martijn Dashorst <>
Subject Re: Etch status (Was: [Incubator Wiki] Update of "March2012" by michaelfitzner)
Date Mon, 12 Mar 2012 11:02:09 GMT
One article worth mentioning:

"Practical experiences on a communication middleware for IP-based
in-car networks" [1]

Current in-car communication networks are based on automotive specific
technologies like CAN, FlexRay and MOST and use proprietary
communication protocols. While CAN and FlexRay come with a
signal-based communication paradigm, MOST provides a more
sophisticated interface based on "function blocks" to the application
programmer. In the next years, we expect IP-based protocols and
standard technologies like Ethernet to be deployed for more and more
in-car communication tasks. As a result, we need an IP-based
communication middleware that provides both signaland function-based
interaction paradigms and works for all distributed applications in
vehicles. Main challenges are the large variety of embedded devices
and operating systems used in a single car in terms of footprint and
compute power. Furthermore, it must be possible to migrate existing
interface definitions from legacy technologies to the new IP-based
solution. In this paper, we propose an IP-based in-car middleware
framework based on an open source solution, Apache Etch. We sketch how
different, yet interoperable versions of the middleware can be used to
construct a scalable system that fits to both small and large devices.
Finally, we identify extensions to Etch that are necessary to qualify
the solution for the use in the automotive domain.

COMSWARE '11 Proceedings of the 5th International Conference on
Communication System Software and Middleware


On Mon, Mar 12, 2012 at 9:45 AM, Martijn Dashorst
<> wrote:
> On Sat, Mar 10, 2012 at 12:59 PM, Jukka Zitting <> wrote:
>> On Mon, Mar 5, 2012 at 8:56 PM, Jukka Zitting <> wrote:
>>> More generally, looking over the last quarter in Etch I see ongoing
>>> technical work mostly by Michael Fitzner and Martin Veith but only
>>> occasional input from others and not much focus on community-building.
>>> Do you have plans on how to increase community activity and diversity,
>>> or are you happy with the status quo?
>> Any thoughts on this from Etch mentors or the PPMC?
> Etch is a slow moving community. AFAICT the code is mostly done, but
> actively maintained. The space Etch operates in is quite crowded, so
> community raising efforts are difficult. The engineers working on such
> code are usually very busy doing other stuff rather than improving the
> library.
> I've tried to contact the most recent voted-in committer, but he has
> yet to respond, and do actual work on Etch.
> The other committers and PPMC members have either jobs that focus on
> implementing things other than directly working with Etch, meaning
> that Etch development only happens when they return to a part that
> uses it. For example the suitable name search is currently undergoing,
> but finding time to complete it is difficult.
> Trying to build a community around a networking stack is difficult,
> especially this one with its history. The original company open
> sourcing Etch disbanded the development team when no diversity was
> present, blowing up the project. I don't blame the company: they have
> to do what is best for them. Unfortunately it did severe damage to the
> community.
> IMO they should have a great community opportunity in the automotive
> industry (the active contributors are from a large 3-letter car
> manufacturer in Germany). My expectation is that this industry (in
> Germany) could expand the community with 3 or 4 committers. Raising
> awareness by publishing an article about Etch in automotive
> engineering magazines should help. I don't expect miracles to happen,
> but if one or two companies start looking into etch, the diversity and
> activity might just increase a bit. I've asked the guys to try to
> write one or two articles in German magazines to raise awareness.
> Unfortunately that has taken quite some time, but what I hear is that
> they are in the final stages.
> I was hoping that the new committer would become active, and that
> graduating Etch would be around the corner. It appears that we need
> other new blood to invigorate the community.
> Martijn

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