Thank you very much! I will read everything!
> On 5 Jul 2017, at 19:04, Gabriel Hartmann <[email protected]> wrote: > > * Maybe have a look at the DefaultScheduler there as well, if you're just > trying to get things building and off the ground > (https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53 > > <https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53>). > > On Wed, Jul 5, 2017 at 9:03 AM Gabriel Hartmann <[email protected] > <mailto:[email protected]>> wrote: > You may register in multiple roles simultaneously. Register with the > MULTI_ROLE capability > (https://github.com/apache/mesos/blob/master/include/mesos/mesos.proto#L345 > <https://github.com/apache/mesos/blob/master/include/mesos/mesos.proto#L345>). > Our frameworks all register with a role, but never the role '*'. We get > Offers from all agents that don't have statically partitioned resources and > do dynamic reservation into one of our registered roles. I don't know the > purpose or goals of your project, but some example Java based frameworks are > available here: https://github.com/mesosphere/dcos-commons > <https://github.com/mesosphere/dcos-commons>. > > We use multiple roles when appropriate here: > https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/specification/DefaultService.java#L200 > > <https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/specification/DefaultService.java#L200> > > Maybe have a look at the DefaultScheduler for an implementation of a look at > the DefaultScheduler there as well, if you're just trying to get things > building and off the ground > (https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53 > > <https://github.com/mesosphere/dcos-commons/blob/master/sdk/scheduler/src/main/java/com/mesosphere/sdk/scheduler/DefaultScheduler.java#L53>). > > > > On Wed, Jul 5, 2017 at 3:13 AM James Peach <[email protected] > <mailto:[email protected]>> wrote: > > > On Jul 5, 2017, at 2:39 AM, Thodoris Zois <[email protected] > > <mailto:[email protected]>> wrote: > > > > Ok, probably you are right but what you don’t understand is that i am a > > completely newbie and i see such systems for the first time. It’s about a > > university project that i am working on in order to get my bachelor degree. > > I don’t really know the proper way to express what i want to like you do. I > > don’t know how to connect 2 frameworks or something, i don’t even know how > > to make my own framework and compile it with the dependencies that Mesos > > needs. I am just writting on TestFramework.java and TestExecutor.java and > > that’s all. The reason that i want to run everything from the same > > framework (instance) is because keep a TreeMap with some info that i don’t > > want to lose if i terminate the Schedulers driver. So if i start up a new > > framework, TreeMap is gone. Forget about the tasks, i can use the same > > TestExecutor.java for every scheduler. > > Note that you can start multiple Scheduler drivers within the same server. > Each one can register with Mesos as a separate framework. > > > What i want to achieve is to get offers from a specific agent with role > > “SB” and run 10 tasks (i give also to my Framework role “SB”), then i store > > those information (which are actually TaskInfo in Schedulers TreeMap). > > After that i would like to change the role of my Framework to “*(default)”. > > Then i will get offer from an agent that has the default role and i will > > still have the info in my TreeMap because scheduler instance didn’t stop. > > If you start multiple Scheduler drivers, they can all share a TreeMap because > they are running in the same Java process. > > > That’s all. My problem is that i don’t know how to change the role of the > > Framework without losing that TreeMap, and also how to set it with version > > 1.3.0. > > > > Hope that everybody understands now…. > > Thank you, and i am really sorry for the spam > > > > > >> On 5 Jul 2017, at 12:24, James Peach <[email protected] > >> <mailto:[email protected]>> wrote: > >> > >> > >>> On Jul 5, 2017, at 12:54 AM, Thodoris Zois <[email protected] > >>> <mailto:[email protected]>> wrote: > >>> > >>> Hi, > >>> > >>> No, i would like my framework to be offered resources from agent with > >>> role (e.g: thz) and after running the specific tasks change its role to > >>> (*) in order to get offers from different agents, but it will run the > >>> same tasks because i am never terminating the scheduler driver (that’s > >>> what i want to). > >> > >> As I suggested on Slack, I still think the most obvious way to implement > >> this is to connect 2 frameworks, 1 for each role. Just co-ordinate > >> internally to accept the offers you want in the right sequence. From your > >> description, there's no requirement for this to be done in 1 framework. > >> > >> I don't really follow what you mean by "run the same tasks". You can run > >> new instances of the same task (from whatever framework you like); you can > >> also send new tasks to an existing executor (from the same framework). > >> > >>> Don’t try to find logic, it’s not for a company or something :) > >> > >> I think that for people to help you, they need to be able to understand > >> the logic of what you want to achieve and why :) > >> > >>> > >>> Thank you, > >>> Thodoris > >>> > >>>> On 5 Jul 2017, at 05:36, Jay Guo <[email protected] > >>>> <mailto:[email protected]>> wrote: > >>>> > >>>> Hi Thodoris, > >>>> > >>>> If I understand correctly, you would like your framework to receive > >>>> offers from both 'role' and '*', so resources reserved to 'role' on > >>>> particular agent could be reliably supplied to the framework? Isn't it > >>>> sufficient to start your framework with multiple roles, 'role' & '*'? > >>>> You need to enable the capability. > >>>> > >>>> - J > >>>> > >>>> On Wed, Jul 5, 2017 at 7:28 AM, Thodoris Zois <[email protected] > >>>> <mailto:[email protected]>> wrote: > >>>> I have built a Framework in Java that is running certain tasks. I would > >>>> like to run those tasks on a specific agent. I have set a role to the > >>>> Framework and used flags upon starting of the agent. Till here > >>>> everything is good. When framework has run tasks successfully i am not > >>>> terminating it. I would like to change its role to default (*) and get > >>>> offered resources from master that correspond to that role and it will > >>>> run again the same amount of tasks (and the same tasks) because i never > >>>> terminated (and i don't want to terminate its instance because i keep > >>>> some mesos metrics to a static TreeMap). That's all.. I just wanted > >>>> somebody to explain me exactly how it works and what i have to do > >>>> because everything i have tried today fails, and seems i can't find > >>>> useful info on the Internet about this. > >>>> > >>>> Thank you! > >>>> > >>>> On 4 Jul 2017, at 21:00, Michael Park <[email protected] > >>>> <mailto:[email protected]>> wrote: > >>>> > >>>>> What is it that you need help with? > >>>>> > >>>>> On Tue, Jul 4, 2017 at 11:12 AM Thodoris Zois <[email protected] > >>>>> <mailto:[email protected]>> wrote: > >>>>> Hello list, > >>>>> > >>>>> Is anybody available to help me with the new feature of 1.3.0 version, > >>>>> that a framework can modify its role? > >>>>> > >>>>> Thank you > >>>> > >>> > >> > > >
