Andrei, Can you add me as contributor, if it works for you :)
On Fri, Mar 1, 2013 at 12:32 AM, Andrei Savu <[email protected]> wrote: > Hi guys - > > I have submitted a proposal to bring Axemblr Provisionr to the Apache > Incubator (see [email protected]): > > http://wiki.apache.org/incubator/ProvisionrProposal > > And this is a slide deck that explains medium term plans & challenges: > > > http://www.slideshare.net/savu.andrei/creating-pools-of-virtual-machines-apachecon-na-2013 > > If you want to join as a mentor / initial contributor you are welcome! > > Thanks, > > -- Andrei Savu > > On Sat, Feb 23, 2013 at 4:24 PM, Paul Baclace <[email protected] > >wrote: > > > On 20130209 4:37 , Andrei Savu wrote: > > > >> On Sat, Feb 9, 2013 at 4:44 AM, Paul Baclace <[email protected]> > >> wrote: > >> > >> Do you have any rough idea of state transition latency and throughput > you > >>> get when using Activiti and how this compares to using Whirr/jclouds > in a > >>> single process? > >>> > >>> Is this important? During pool creation most of the time is spent in > >> loops > >> waiting for external services. We try to keep each activity as short as > >> possible to avoid long running transactions. > >> > >> The reason I ask is that although Activiti has good support for > designing > >>> processes and programmatic control of the engine, it is necessarily DB > >>> transaction limited. An obvious alternative design is to use something > >>> that > >>> is actor based which can run entirely in RAM. I admit that an actor > >>> control > >>> system would make it harder to trace what happened, compared to > business > >>> process control which is very much oriented toward human-in-the-loop. > >>> > >>> I think it's going to take while for us to hit that limitation. I see > >> good > >> performance even if we are using an embedded H2 database - it should > work > >> a > >> lot better with a PostgresSQL server. It's true that Activiti is > oriented > >> towards human-in-the-loop processes but it works well also for > >> unsupervised > >> ones. > >> > >> > >> As long as the orchestration is at the appropriate granularity (not > > micro-managing), then using Activiti should be fine. Another thing it can > > do that is more challenging for a single machine actor system is preserve > > state across controller restarts. > > > > Paul > > > > > -- thanks ashish Blog: http://www.ashishpaliwal.com/blog My Photo Galleries: http://www.pbase.com/ashishpaliwal
