Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Renat Akhmerov
On 14 Nov 2013, at 21:46, Zane Bitter wrote: > If you have a service that is stateless and only responds to user requests, > then scaling it out is easy (just stick it behind a load balancer). If it has > state (i.e. a database), things become a whole lot more complicated to > maintain consis

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Christopher Armstrong
On Thu, Nov 14, 2013 at 4:29 AM, Renat Akhmerov wrote: > As for EventScheduler proposal, I think it actually fits Mistral model > very well. What described in EvenScheduler is basically the ability to > configure webhooks to be called periodically or at a certain time. First of > all, from the ver

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Zane Bitter
On 14/11/13 12:26, Renat Akhmerov wrote: On 14 Nov 2013, at 18:03, Zane Bitter mailto:zbit...@redhat.com>> wrote: What might be a downside is that sharing a back-end may not be technically convenient - one thing we have been reminded of in Heat is that a service with timed tasks has to be scal

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Renat Akhmerov
On 14 Nov 2013, at 18:03, Zane Bitter wrote: > What might be a downside is that sharing a back-end may not be technically > convenient - one thing we have been reminded of in Heat is that a service > with timed tasks has to be scaled out in a completely different way to a > service that avoid

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Zane Bitter
On 14/11/13 11:29, Renat Akhmerov wrote: As for EventScheduler proposal, I think it actually fits Mistral model very well. What described in EvenScheduler is basically the ability to configure webhooks to be called periodically or at a certain time. First of all, from the very beginning the conce

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Renat Akhmerov
As for EventScheduler proposal, I think it actually fits Mistral model very well. What described in EvenScheduler is basically the ability to configure webhooks to be called periodically or at a certain time. First of all, from the very beginning the concept of scheduling has been considered a v

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-14 Thread Renat Akhmerov
On 13 нояб. 2013 г., at 6:39, Angus Salkeld wrote: > Your work mates;) https://github.com/rackerlabs/qonos > > how about merge qonos into mistral, or at lest put it into stack forge? Just got to looking at qonos. It actually looks similar in some ways to Mistral but with some differences: no

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-13 Thread Renat Akhmerov
On 13 нояб. 2013 г., at 18:12, Renat Akhmerov wrote: > > On 13 нояб. 2013 г., at 6:39, Angus Salkeld wrote: > >>> Second question: if the proposed "EventScheduler" becomes a real project, >>> which OpenStack Program should it live under? >>> >>> Third question: Is anyone actively working on

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-13 Thread Renat Akhmerov
On 13 нояб. 2013 г., at 6:39, Angus Salkeld wrote: > On 12/11/13 15:13 -0800, Christopher Armstrong wrote: >> Given the recent discussion of scheduled autoscaling at the summit session >> on autoscaling, I looked into the state of scheduling-as-a-service in and >> around OpenStack. I found two r

Re: [openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-12 Thread Angus Salkeld
On 12/11/13 15:13 -0800, Christopher Armstrong wrote: Given the recent discussion of scheduled autoscaling at the summit session on autoscaling, I looked into the state of scheduling-as-a-service in and around OpenStack. I found two relevant wiki pages: https://wiki.openstack.org/wiki/EventSched

[openstack-dev] [heat][mistral] EventScheduler vs Mistral scheduling

2013-11-12 Thread Christopher Armstrong
Given the recent discussion of scheduled autoscaling at the summit session on autoscaling, I looked into the state of scheduling-as-a-service in and around OpenStack. I found two relevant wiki pages: https://wiki.openstack.org/wiki/EventScheduler https://wiki.openstack.org/wiki/Mistral/Cloud_Cron