[LRUG] Event Bus in ruby

[Klaus Hebsgaard]

Thank you everyone who gave suggestions

Med Venlig hilsen / Best regards

Klaus Hebsgaard

Website: http://www.hebsgaard.dk
Blog: *http://blog.khebbie.dk <http://blog.khebbie.dk>*
LinkedIIn: http://www.linkedin.com/in/klaushebsgaard
Github: https://github.com/khebbie


On Wed, Aug 20, 2014 at 12:41 PM, James Pike <lrug at chilon.net> wrote:

> The awkward thing about Redis is you only get a single "watch" per TCP
> connection, with the exception of pub sub (which puts your connection
> into "subscriber mode" and limits it to only pub/sub operations). If you
> only want to stick to pubsub then it's cool, but then if you are tempted
> by other things like queues and hashes and operations to watch them,
> then you have to start having to spawn multiple TCP connections for each
> watch operation, and then writing connection pools etc. That makes me
> sad.
>
> RabbitMQ is nice in that you can consume all its goods with a single TCP
> connection.
>
> Cheers, James
>
> On Wed, Aug 20, 2014 at 11:14:12am +0100, Sleepyfox wrote:
> > Something that might initially sound a bit weird, but suits small apps
> > well, is using Redis for it's dirt simple Pub/Sub support. It's
> > trivially easy to use Redis as a message bus (trivially easy to use
> > Redis, full stop), and if you're not looking for the last word in
> > sophistication or scale (in which case something like RabbitMQ is
> > probably a better bet) it does the job.
> >
> > The approach is described in the following article (about Node rather
> > than Ruby, but you get the picture):
> >
> > Fox
> > --
> > "What does the @sleepyfox say?"
> >
> >
> > On 20 August 2014 09:23, Klaus Hebsgaard <klaus at hebsgaard.dk> wrote:
> > > Thanks for the pointer, however there were a few points I didn't put
> into
> > > the original request:
> > > - I need something small, as the app is small
> > > - I don't mind synchronous event busses, as we don't handle anything
> big
> > > yet.
> > > - I would like some simplicity, so adding more processes to run on the
> > > server, would be too much overhead at the moment
> > > - We use MRI at the moment, though I can see lots of advantages to
> JRuby
> > >
> > >
> > >
> > > Med Venlig hilsen / Best regards
> > >
> > > Klaus Hebsgaard
> > >
> > > Website: http://www.hebsgaard.dk
> > > Blog: http://blog.khebbie.dk
> > > LinkedIIn: http://www.linkedin.com/in/klaushebsgaard
> > > Github: https://github.com/khebbie
> > >
> > >
> > > On Wed, Aug 20, 2014 at 9:38 AM, Vish Vishvanath <
> vish.vishvanath at gmail.com>
> > > wrote:
> > >>
> > >> Hey Klaus,
> > >>
> > >> On a slightly different note, I've had very positive experiences with
> Ruby
> > >> in vert.x,  which enables excellent decoupling with its system of
> > >> 'verticles': independent code modules communicating via immutable
> primitives
> > >> across an event bus.
> > >>
> > >> The fact that you can leverage Java and several languages in the same
> > >> codebase is a bonus.
> > >>
> > >> Best
> > >>
> > >> vv
> > >>
> > >> On 20 Aug 2014, at 07:42, Klaus Hebsgaard <klaus at hebsgaard.dk> wrote:
> > >>
> > >> Hello
> > >>
> > >> I am currently looking into decoupling my app a bit more.
> > >> Coming from a C# background I would like to use an Event Bus for
> this, so
> > >> that I can apply the observer pattern.
> > >>
> > >> I have searched a bit around and have found:
> > >> https://github.com/kevinrutherford/event_bus
> > >>
> > >> Does anyone know this gem, is it worth using (well maintained etc)?
> > >> Do you know of good alternatives?
> > >>
> > >> Med Venlig hilsen / Best regards
> > >>
> > >> Klaus Hebsgaard
> > >>
> > >> Website: http://www.hebsgaard.dk
> > >> Blog: http://blog.khebbie.dk
> > >> LinkedIIn: http://www.linkedin.com/in/klaushebsgaard
> > >> Github: https://github.com/khebbie
> > >>
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> --
> http://chilon.net
>
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