[Backgroundrb-devel] [ANN] BackgrounDRb release 1.0 available now
hemant
gethemant at gmail.com
Mon Dec 17 09:59:22 EST 2007
Hi
On Dec 17, 2007 7:47 PM, Josh Symonds <veraticus at gmail.com> wrote:
> Awesome, thanks for all the work, Hemant! Does this release also fix the
> issue with BackgrounDRb writing ActiveRecord messages to the development
> log?
Yes, John,
The issue you mention has been fixed in the latest release.
>
>
>
> On Dec 17, 2007 6:23 AM, hemant < gethemant at gmail.com> wrote:
> >
> >
> >
> > Hi Folks,
> >
> > I am glad to announce 1.0 release of BackgrounDRb.
> >
> > This would be a major release since 0.2 release of BackgrounDRb.
> >
> > Here is a brief summary of changes:
> >
> > - BackgrounDRb is DRb no longer. It makes use of EventDriven network
> > programming library packet ( http://packet.googlecode.com ).
> >
> > - Since we moved to packet, many nasty thread issues, result hash
> > corruption issues are totally gone. Lots of work has went in
> > making scheduler rock solid stable.
> >
> > - Each worker, still runs in its own process, but each worker has a
> > event loop of its own and all the events are triggered by the internal
> > reactor loop. In a nutshell, you are not encouraged to use threads
> > in your workers now. All the workers are already concurrent, but you
> > are encouraged to use co-operative multitasking, rather than
> > pre-emptive. A simple example is,
> >
> > For implement something like progress bar in old version of bdrb, you
> would:
> > - start your processing a thread (so as your worker can receive
> > further request from rails ) and have a instance
> > variable ( protected by mutex ) which is updated on progress and
> > can be send to rails.
> >
> > - With new backgroundrb, progress bar would be:
> > process your damn request and just use register_status() to
> > register status of your worker. Just because
> > you are doing some processing won't mean that your worker will
> > block. It can still receive requests from rails.
> >
> >
> > - Now, you can schedule multiple methods with their own triggers.
> >
> > | :schedules:
> > | :foo_worker:
> > | :foobar:
> > | :trigger_args: */5 * * * * * *
> > | :data: Hello World
> > | :barbar:
> > | :trigger_args: */10 * * * * * *
> >
> > - Inside each worker, you can start tcp server or connect to a
> > external server. Two important methods available in all workers are:
> >
> > start_server("localhost",port,ModuleName)
> > connect("localhost",port,ModuleName)
> >
> > Connected client or outgoing connection would be integrated with
> > Event Loop and you can process requests from these guys
> > asynchronously. This mouse trap can allow you to build truly
> > distributed workers across your network.
> >
> > - Each worker comes with a "thread_pool" object, which can be used
> > to run tasks concurrently. For example:
> >
> > thread_pool.defer(url) { |url| scrap_wiki_content(url) }
> >
> > - Each worker has access to method "register_status" which can be
> > used to update status of worker or store results. Results of a worker
> > can be retrieved even after a worker has died.
> >
> > By default the results would be saved in master process memory, but
> > you can configure BackgrounDRb to store these results in a memcache
> > server or a cluster using following option in configuration file:
> >
> > # backgroundrb.yml
> >
> > | :backgroundrb:
> > | :port: 11006
> > | :ip: 0.0.0.0
> > | :log: foreground
> > | :result_storage:
> > | :memcache: "10.10.10.2:11211,10.10.10.6:11211"
> >
> >
> > - Relevant URLs:
> > ** Home Page: http://backgroundrb.rubyforge.org
> > ** SVN : http://svn.devjavu.com/backgroundrb/trunk
> > ** Bug Reports/Ticks: http://backgroundrb.devjavu.com/report
> >
> > - Credits :
> > ** Ezra Zygmuntowicz,skaar for taking BackgrounDRb so far.
> > ** Kevin for helping out with OSX issues.
> > ** Andy for patches and initial testing.
> > ** Paul for patching up README.
> > ** Other initial users.
> > ** Matz, Francis for general inspiration.
> >
> >
> > --
> > Let them talk of their oriental summer climes of everlasting
> > conservatories; give me the privilege of making my own summer with my
> > own coals.
> >
> > http://gnufied.org
> > _______________________________________________
> > Backgroundrb-devel mailing list
> > Backgroundrb-devel at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/backgroundrb-devel
> >
>
>
--
Let them talk of their oriental summer climes of everlasting
conservatories; give me the privilege of making my own summer with my
own coals.
http://gnufied.org
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